From ac5b7505de7013a4c572aa80d5b43db287fa0161 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:33 -0700 Subject: [PATCH 01/86] scsi: mpi3mr: struct mpi3_event_data_sas_topology_change_list: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_event_data_sas_topology_change_list with a modern flexible array. Additionally add __counted_by annotation since phy_entry is only ever accessed in loops controlled by num_entries. For example: for (i = 0; i < event_data->num_entries; i++) { ... handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-1-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_ioc.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h index 028784949873..ae74fccc65b8 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h @@ -453,9 +453,6 @@ struct mpi3_event_data_sas_notify_primitive { #define MPI3_EVENT_NOTIFY_PRIMITIVE_POWER_LOSS_EXPECTED (0x02) #define MPI3_EVENT_NOTIFY_PRIMITIVE_RESERVED1 (0x03) #define MPI3_EVENT_NOTIFY_PRIMITIVE_RESERVED2 (0x04) -#ifndef MPI3_EVENT_SAS_TOPO_PHY_COUNT -#define MPI3_EVENT_SAS_TOPO_PHY_COUNT (1) -#endif struct mpi3_event_sas_topo_phy_entry { __le16 attached_dev_handle; u8 link_rate; @@ -496,7 +493,7 @@ struct mpi3_event_data_sas_topology_change_list { u8 start_phy_num; u8 exp_status; u8 io_unit_port; - struct mpi3_event_sas_topo_phy_entry phy_entry[MPI3_EVENT_SAS_TOPO_PHY_COUNT]; + struct mpi3_event_sas_topo_phy_entry phy_entry[] __counted_by(num_entries); }; #define MPI3_EVENT_SAS_TOPO_ES_NO_EXPANDER (0x00) From 0e11f97bfddc608fd31d4fb7b8feaf74755d6372 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:34 -0700 Subject: [PATCH 02/86] scsi: mpi3mr: struct mpi3_event_data_pcie_topology_change_list: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_event_data_pcie_topology_change_list with a modern flexible array. Additionally add __counted_by annotation since port_entry is only ever accessed in loops controlled by num_entries. For example: for (i = 0; i < event_data->num_entries; i++) { handle = le16_to_cpu(event_data->port_entry[i].attached_dev_handle); No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-2-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_ioc.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h index ae74fccc65b8..c9fa0d69b75f 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h @@ -542,9 +542,6 @@ struct mpi3_event_data_pcie_enumeration { #define MPI3_EVENT_PCIE_ENUM_ES_MAX_SWITCHES_EXCEED (0x40000000) #define MPI3_EVENT_PCIE_ENUM_ES_MAX_DEVICES_EXCEED (0x20000000) #define MPI3_EVENT_PCIE_ENUM_ES_RESOURCES_EXHAUSTED (0x10000000) -#ifndef MPI3_EVENT_PCIE_TOPO_PORT_COUNT -#define MPI3_EVENT_PCIE_TOPO_PORT_COUNT (1) -#endif struct mpi3_event_pcie_topo_port_entry { __le16 attached_dev_handle; u8 port_status; @@ -585,7 +582,7 @@ struct mpi3_event_data_pcie_topology_change_list { u8 switch_status; u8 io_unit_port; __le32 reserved0c; - struct mpi3_event_pcie_topo_port_entry port_entry[MPI3_EVENT_PCIE_TOPO_PORT_COUNT]; + struct mpi3_event_pcie_topo_port_entry port_entry[] __counted_by(num_entries); }; #define MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH (0x00) From 41bb96296f9d3a92f3b52bcf502d6c0e86fa84a0 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:35 -0700 Subject: [PATCH 03/86] scsi: mpi3mr: struct mpi3_sas_io_unit_page0: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_sas_io_unit_page0 with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-3-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h index 6a19e17eb1a7..66cca35d8e52 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h @@ -1565,16 +1565,13 @@ struct mpi3_sas_io_unit0_phy_data { __le32 reserved10; }; -#ifndef MPI3_SAS_IO_UNIT0_PHY_MAX -#define MPI3_SAS_IO_UNIT0_PHY_MAX (1) -#endif struct mpi3_sas_io_unit_page0 { struct mpi3_config_page_header header; __le32 reserved08; u8 num_phys; u8 init_status; __le16 reserved0e; - struct mpi3_sas_io_unit0_phy_data phy_data[MPI3_SAS_IO_UNIT0_PHY_MAX]; + struct mpi3_sas_io_unit0_phy_data phy_data[]; }; #define MPI3_SASIOUNIT0_PAGEVERSION (0x00) From a62193abae75f3c3f68bbc7d3343751644140556 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:36 -0700 Subject: [PATCH 04/86] scsi: mpi3mr: struct mpi3_sas_io_unit_page1: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_sas_io_unit_page1 with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-4-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h index 66cca35d8e52..4b7a8f6314a3 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h @@ -1603,9 +1603,6 @@ struct mpi3_sas_io_unit1_phy_data { __le32 reserved08; }; -#ifndef MPI3_SAS_IO_UNIT1_PHY_MAX -#define MPI3_SAS_IO_UNIT1_PHY_MAX (1) -#endif struct mpi3_sas_io_unit_page1 { struct mpi3_config_page_header header; __le16 control_flags; @@ -1615,7 +1612,7 @@ struct mpi3_sas_io_unit_page1 { u8 num_phys; u8 sata_max_q_depth; __le16 reserved12; - struct mpi3_sas_io_unit1_phy_data phy_data[MPI3_SAS_IO_UNIT1_PHY_MAX]; + struct mpi3_sas_io_unit1_phy_data phy_data[]; }; #define MPI3_SASIOUNIT1_PAGEVERSION (0x00) From ed8ab02c85b3494ec81f35f12e01f6678af09f6a Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:58:23 -0700 Subject: [PATCH 05/86] scsi: megaraid_sas: struct MR_LD_VF_MAP: Replace 1-element arrays with flexible arrays Replace the deprecated[1] use of a 1-element array in struct MR_LD_VF_MAP with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155823.work.778-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/megaraid/megaraid_sas.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 5680c6cdb221..84cf77c48c0d 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2473,7 +2473,7 @@ struct MR_LD_VF_MAP { union MR_LD_REF ref; u8 ldVfCount; u8 reserved[6]; - u8 policy[1]; + u8 policy[]; }; struct MR_LD_VF_AFFILIATION { From 29b4a49750776925ea48ef440da6aa75828913db Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:58:42 -0700 Subject: [PATCH 06/86] scsi: megaraid_sas: struct MR_HOST_DEVICE_LIST: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct MR_HOST_DEVICE_LIST with a modern flexible array. One binary difference appears in megasas_host_device_list_query(): struct MR_HOST_DEVICE_LIST *ci; ... ci = instance->host_device_list_buf; ... memset(ci, 0, sizeof(*ci)); The memset() clears only the non-flexible array fields. Looking at the rest of the function, this appears to be fine: firmware is using this region to communicate with the kernel, so it likely never made sense to clear the first MR_HOST_DEVICE_LIST_ENTRY. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155841.work.839-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/megaraid/megaraid_sas.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 84cf77c48c0d..088cc40ae866 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -814,12 +814,12 @@ struct MR_HOST_DEVICE_LIST { __le32 size; __le32 count; __le32 reserved[2]; - struct MR_HOST_DEVICE_LIST_ENTRY host_device_list[1]; + struct MR_HOST_DEVICE_LIST_ENTRY host_device_list[] __counted_by_le(count); } __packed; #define HOST_DEVICE_LIST_SZ (sizeof(struct MR_HOST_DEVICE_LIST) + \ (sizeof(struct MR_HOST_DEVICE_LIST_ENTRY) * \ - (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT - 1))) + (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT))) /* From 575b9be63684600e7e02517f0b647e5cb759120c Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:48:23 -0700 Subject: [PATCH 07/86] scsi: aacraid: union aac_init: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in union aac_init with a modern flexible array. Additionally add __counted_by annotation since rrq is only ever accessed after rr_queue_count has been set (with the same value used to control the loop): init->r8.rr_queue_count = cpu_to_le32(dev->max_msix); ... for (i = 0; i < dev->max_msix; i++) { addr = (u64)dev->host_rrq_pa + dev->vector_cap * i * sizeof(u32); init->r8.rrq[i].host_addr_high = cpu_to_le32( upper_32_bits(addr)); No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711174815.work.689-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aacraid.h | 2 +- drivers/scsi/aacraid/src.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 7d5a155073c6..659e393c1033 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -873,7 +873,7 @@ union aac_init __le16 element_count; __le16 comp_thresh; __le16 unused; - } rrq[1]; /* up to 64 RRQ addresses */ + } rrq[] __counted_by_le(rr_queue_count); /* up to 64 RRQ addresses */ } r8; }; diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c index 11ef58204e96..28115ed637e8 100644 --- a/drivers/scsi/aacraid/src.c +++ b/drivers/scsi/aacraid/src.c @@ -410,7 +410,7 @@ static void aac_src_start_adapter(struct aac_dev *dev) lower_32_bits(dev->init_pa), upper_32_bits(dev->init_pa), sizeof(struct _r8) + - (AAC_MAX_HRRQ - 1) * sizeof(struct _rrq), + AAC_MAX_HRRQ * sizeof(struct _rrq), 0, 0, 0, NULL, NULL, NULL, NULL, NULL); } else { init->r7.host_elapsed_seconds = From 2e35b43bc9a82fde4e7aebe5d8331e1158374d5c Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:50:55 -0700 Subject: [PATCH 08/86] scsi: aacraid: struct aac_ciss_phys_luns_resp: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct aac_ciss_phys_luns_resp with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711175055.work.928-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Reviewed-by: Kees Cook Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aachba.c | 2 +- drivers/scsi/aacraid/aacraid.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index b22857c6f3f4..497c6dd5df91 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -1833,7 +1833,7 @@ static int aac_get_safw_ciss_luns(struct aac_dev *dev) struct aac_ciss_phys_luns_resp *phys_luns; datasize = sizeof(struct aac_ciss_phys_luns_resp) + - (AAC_MAX_TARGETS - 1) * sizeof(struct _ciss_lun); + AAC_MAX_TARGETS * sizeof(struct _ciss_lun); phys_luns = kmalloc(datasize, GFP_KERNEL); if (phys_luns == NULL) goto out; diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 659e393c1033..6f0417f6f8a1 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -322,7 +322,7 @@ struct aac_ciss_phys_luns_resp { u8 level3[2]; u8 level2[2]; u8 node_ident[16]; /* phys. node identifier */ - } lun[1]; /* List of phys. devices */ + } lun[]; /* List of phys. devices */ }; /* From c72e13cf820bc79fffd5ffaaa0aaab11269027d1 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 11:07:06 -0700 Subject: [PATCH 09/86] scsi: ipr: Replace 1-element arrays with flexible arrays Replace the deprecated[1] use of a 1-element arrays in struct ipr_hostrcb_fabric_desc and struct ipr_hostrcb64_fabric_desc with modern flexible arrays. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711180702.work.536-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/ipr.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index c77d6ca1a210..b2b643c6dbbe 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -1030,7 +1030,7 @@ struct ipr_hostrcb_fabric_desc { #define IPR_PATH_FAILED 0x03 __be16 num_entries; - struct ipr_hostrcb_config_element elem[1]; + struct ipr_hostrcb_config_element elem[]; }__attribute__((packed, aligned (4))); struct ipr_hostrcb64_fabric_desc { @@ -1044,7 +1044,7 @@ struct ipr_hostrcb64_fabric_desc { u8 res_path[8]; u8 reserved3[6]; __be16 num_entries; - struct ipr_hostrcb64_config_element elem[1]; + struct ipr_hostrcb64_config_element elem[]; }__attribute__((packed, aligned (8))); #define for_each_hrrq(hrrq, ioa_cfg) \ From 8e76c9c9dd117c95c0ae248a217197228000912c Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:28:15 -0700 Subject: [PATCH 10/86] scsi: message: fusion: struct _RAID_VOL0_SETTINGS: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct _RAID_VOL0_SETTINGS with a modern flexible array. Additionally add __counted_by annotation since PhysDisk is only ever accessed via a loops bounded by NumPhysDisks: lsi/mpi_cnfg.h: RAID_VOL0_PHYS_DISK PhysDisk[] __counted_by(NumPhysDisks); /* 28h */ mptbase.c: for (i = 0; i < buffer->NumPhysDisks; i++) { mptbase.c: buffer->PhysDisk[i].PhysDiskNum, &phys_disk) != 0) mptsas.c: for (i = 0; i < buffer->NumPhysDisks; i++) { mptsas.c: buffer->PhysDisk[i].PhysDiskNum, &phys_disk) != 0) mptsas.c: for (i = 0; i < buffer->NumPhysDisks; i++) { mptsas.c: buffer->PhysDisk[i].PhysDiskNum, &phys_disk) != 0) No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711172821.123936-1-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/message/fusion/lsi/mpi_cnfg.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h index 3770cb1cff7d..f59a741ef21c 100644 --- a/drivers/message/fusion/lsi/mpi_cnfg.h +++ b/drivers/message/fusion/lsi/mpi_cnfg.h @@ -2295,14 +2295,6 @@ typedef struct _RAID_VOL0_SETTINGS #define MPI_RAID_HOT_SPARE_POOL_6 (0x40) #define MPI_RAID_HOT_SPARE_POOL_7 (0x80) -/* - * Host code (drivers, BIOS, utilities, etc.) should leave this define set to - * one and check Header.PageLength at runtime. - */ -#ifndef MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX -#define MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX (1) -#endif - typedef struct _CONFIG_PAGE_RAID_VOL_0 { CONFIG_PAGE_HEADER Header; /* 00h */ @@ -2321,7 +2313,7 @@ typedef struct _CONFIG_PAGE_RAID_VOL_0 U8 DataScrubRate; /* 25h */ U8 ResyncRate; /* 26h */ U8 InactiveStatus; /* 27h */ - RAID_VOL0_PHYS_DISK PhysDisk[MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX];/* 28h */ + RAID_VOL0_PHYS_DISK PhysDisk[] __counted_by(NumPhysDisks); /* 28h */ } CONFIG_PAGE_RAID_VOL_0, MPI_POINTER PTR_CONFIG_PAGE_RAID_VOL_0, RaidVolumePage0_t, MPI_POINTER pRaidVolumePage0_t; From 14c1f88c7f625dc12fb4a6f18154bcd6f7cd021f Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:28:16 -0700 Subject: [PATCH 11/86] scsi: message: fusion: struct _CONFIG_PAGE_SAS_IO_UNIT_0: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct _CONFIG_PAGE_SAS_IO_UNIT_0 with a modern flexible array. Additionally add __counted_by annotation since PhyData is only ever accessed via a loops bounded by NumPhys: lsi/mpi_cnfg.h: MPI_SAS_IO_UNIT0_PHY_DATA PhyData[] __counted_by(NumPhys); /* 10h */ mptsas.c: port_info->num_phys = buffer->NumPhys; mptsas.c: for (i = 0; i < port_info->num_phys; i++) { mptsas.c: mptsas_print_phy_data(ioc, &buffer->PhyData[i]); mptsas.c: port_info->phy_info[i].phy_id = i; mptsas.c: port_info->phy_info[i].port_id = mptsas.c: buffer->PhyData[i].Port; mptsas.c: port_info->phy_info[i].negotiated_link_rate = mptsas.c: buffer->PhyData[i].NegotiatedLinkRate; No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711172821.123936-2-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/message/fusion/lsi/mpi_cnfg.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h index f59a741ef21c..c7997e32e82e 100644 --- a/drivers/message/fusion/lsi/mpi_cnfg.h +++ b/drivers/message/fusion/lsi/mpi_cnfg.h @@ -2547,14 +2547,6 @@ typedef struct _MPI_SAS_IO_UNIT0_PHY_DATA } MPI_SAS_IO_UNIT0_PHY_DATA, MPI_POINTER PTR_MPI_SAS_IO_UNIT0_PHY_DATA, SasIOUnit0PhyData, MPI_POINTER pSasIOUnit0PhyData; -/* - * Host code (drivers, BIOS, utilities, etc.) should leave this define set to - * one and check Header.PageLength at runtime. - */ -#ifndef MPI_SAS_IOUNIT0_PHY_MAX -#define MPI_SAS_IOUNIT0_PHY_MAX (1) -#endif - typedef struct _CONFIG_PAGE_SAS_IO_UNIT_0 { CONFIG_EXTENDED_PAGE_HEADER Header; /* 00h */ @@ -2563,7 +2555,7 @@ typedef struct _CONFIG_PAGE_SAS_IO_UNIT_0 U8 NumPhys; /* 0Ch */ U8 Reserved2; /* 0Dh */ U16 Reserved3; /* 0Eh */ - MPI_SAS_IO_UNIT0_PHY_DATA PhyData[MPI_SAS_IOUNIT0_PHY_MAX]; /* 10h */ + MPI_SAS_IO_UNIT0_PHY_DATA PhyData[] __counted_by(NumPhys); /* 10h */ } CONFIG_PAGE_SAS_IO_UNIT_0, MPI_POINTER PTR_CONFIG_PAGE_SAS_IO_UNIT_0, SasIOUnitPage0_t, MPI_POINTER pSasIOUnitPage0_t; From dc8932fbf6a9cad4cf6dd312d115a26d90facb7e Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:28:17 -0700 Subject: [PATCH 12/86] scsi: message: fusion: struct _CONFIG_PAGE_RAID_PHYS_DISK_1: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct _CONFIG_PAGE_RAID_PHYS_DISK_1 with a modern flexible array. Additionally add __counted_by annotation since Path is only ever accessed via a loops bounded by NumPhysDiskPaths: lsi/mpi_cnfg.h: RAID_PHYS_DISK1_PATH Path[] __counted_by(NumPhysDiskPaths);/* 0Ch */ mptbase.c: phys_disk->NumPhysDiskPaths = buffer->NumPhysDiskPaths; mptbase.c: for (i = 0; i < phys_disk->NumPhysDiskPaths; i++) { mptbase.c: phys_disk->Path[i].PhysDiskID = buffer->Path[i].PhysDiskID; mptbase.c: phys_disk->Path[i].PhysDiskBus = buffer->Path[i].PhysDiskBus; No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711172821.123936-3-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/message/fusion/lsi/mpi_cnfg.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h index c7997e32e82e..e30132b57ae7 100644 --- a/drivers/message/fusion/lsi/mpi_cnfg.h +++ b/drivers/message/fusion/lsi/mpi_cnfg.h @@ -2447,14 +2447,6 @@ typedef struct _RAID_PHYS_DISK1_PATH #define MPI_RAID_PHYSDISK1_FLAG_INVALID (0x0001) -/* - * Host code (drivers, BIOS, utilities, etc.) should leave this define set to - * one and check Header.PageLength or NumPhysDiskPaths at runtime. - */ -#ifndef MPI_RAID_PHYS_DISK1_PATH_MAX -#define MPI_RAID_PHYS_DISK1_PATH_MAX (1) -#endif - typedef struct _CONFIG_PAGE_RAID_PHYS_DISK_1 { CONFIG_PAGE_HEADER Header; /* 00h */ @@ -2462,7 +2454,7 @@ typedef struct _CONFIG_PAGE_RAID_PHYS_DISK_1 U8 PhysDiskNum; /* 05h */ U16 Reserved2; /* 06h */ U32 Reserved1; /* 08h */ - RAID_PHYS_DISK1_PATH Path[MPI_RAID_PHYS_DISK1_PATH_MAX];/* 0Ch */ + RAID_PHYS_DISK1_PATH Path[] __counted_by(NumPhysDiskPaths);/* 0Ch */ } CONFIG_PAGE_RAID_PHYS_DISK_1, MPI_POINTER PTR_CONFIG_PAGE_RAID_PHYS_DISK_1, RaidPhysDiskPage1_t, MPI_POINTER pRaidPhysDiskPage1_t; From de80fe29ab53dc9efde5c773fadebd3e547ad785 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:28:18 -0700 Subject: [PATCH 13/86] scsi: message: fusion: struct _CONFIG_PAGE_IOC_2: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct _CONFIG_PAGE_IOC_2 with a modern flexible array. Additionally add __counted_by annotation since RaidVolume is only ever accessed from loops controlled by NumActiveVolumes: lsi/mpi_cnfg.h: CONFIG_PAGE_IOC_2_RAID_VOL RaidVolume[] __counted_by(NumActiveVolumes); /* 0Ch */ mptbase.c: for (i = 0; i < pIoc2->NumActiveVolumes ; i++) mptbase.c: pIoc2->RaidVolume[i].VolumeBus, mptbase.c: pIoc2->RaidVolume[i].VolumeID); mptsas.c: for (i = 0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { mptsas.c: RaidVolume[i].VolumeID) { mptsas.c: RaidVolume[i].VolumeBus; mptsas.c: for (i = 0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { mptsas.c: ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID, 0); mptsas.c: ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID); mptsas.c: ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID, 0); mptsas.c: for (i = 0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { mptsas.c: if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == mptsas.c: for (i = 0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) mptsas.c: if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) mptspi.c: for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { mptspi.c: if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) { No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711172821.123936-4-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/message/fusion/lsi/mpi_cnfg.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h index e30132b57ae7..7713c74e515b 100644 --- a/drivers/message/fusion/lsi/mpi_cnfg.h +++ b/drivers/message/fusion/lsi/mpi_cnfg.h @@ -1018,14 +1018,6 @@ typedef struct _CONFIG_PAGE_IOC_2_RAID_VOL #define MPI_IOCPAGE2_FLAG_VOLUME_INACTIVE (0x08) -/* - * Host code (drivers, BIOS, utilities, etc.) should leave this define set to - * one and check Header.PageLength at runtime. - */ -#ifndef MPI_IOC_PAGE_2_RAID_VOLUME_MAX -#define MPI_IOC_PAGE_2_RAID_VOLUME_MAX (1) -#endif - typedef struct _CONFIG_PAGE_IOC_2 { CONFIG_PAGE_HEADER Header; /* 00h */ @@ -1034,7 +1026,7 @@ typedef struct _CONFIG_PAGE_IOC_2 U8 MaxVolumes; /* 09h */ U8 NumActivePhysDisks; /* 0Ah */ U8 MaxPhysDisks; /* 0Bh */ - CONFIG_PAGE_IOC_2_RAID_VOL RaidVolume[MPI_IOC_PAGE_2_RAID_VOLUME_MAX];/* 0Ch */ + CONFIG_PAGE_IOC_2_RAID_VOL RaidVolume[] __counted_by(NumActiveVolumes); /* 0Ch */ } CONFIG_PAGE_IOC_2, MPI_POINTER PTR_CONFIG_PAGE_IOC_2, IOCPage2_t, MPI_POINTER pIOCPage2_t; From 70631322dbab5b48f49f142dd9aef768c0fb077c Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:28:19 -0700 Subject: [PATCH 14/86] scsi: message: fusion: struct _CONFIG_PAGE_IOC_3: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct _CONFIG_PAGE_IOC_3 with a modern flexible array. Additionally add __counted_by annotation since PhysDisk is only ever accessed via a loops bounded by NumPhysDisks: lsi/mpi_cnfg.h: IOC_3_PHYS_DISK PhysDisk[] __counted_by(NumPhysDisks); /* 08h */ mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && mptscsih.c: (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && mptscsih.c: (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { mptscsih.c: rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum; mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711172821.123936-5-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/message/fusion/lsi/mpi_cnfg.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h index 7713c74e515b..bac49c162165 100644 --- a/drivers/message/fusion/lsi/mpi_cnfg.h +++ b/drivers/message/fusion/lsi/mpi_cnfg.h @@ -1056,21 +1056,13 @@ typedef struct _IOC_3_PHYS_DISK } IOC_3_PHYS_DISK, MPI_POINTER PTR_IOC_3_PHYS_DISK, Ioc3PhysDisk_t, MPI_POINTER pIoc3PhysDisk_t; -/* - * Host code (drivers, BIOS, utilities, etc.) should leave this define set to - * one and check Header.PageLength at runtime. - */ -#ifndef MPI_IOC_PAGE_3_PHYSDISK_MAX -#define MPI_IOC_PAGE_3_PHYSDISK_MAX (1) -#endif - typedef struct _CONFIG_PAGE_IOC_3 { CONFIG_PAGE_HEADER Header; /* 00h */ U8 NumPhysDisks; /* 04h */ U8 Reserved1; /* 05h */ U16 Reserved2; /* 06h */ - IOC_3_PHYS_DISK PhysDisk[MPI_IOC_PAGE_3_PHYSDISK_MAX]; /* 08h */ + IOC_3_PHYS_DISK PhysDisk[] __counted_by(NumPhysDisks); /* 08h */ } CONFIG_PAGE_IOC_3, MPI_POINTER PTR_CONFIG_PAGE_IOC_3, IOCPage3_t, MPI_POINTER pIOCPage3_t; From f296cc1d7f5aeccd0d87ec167e0aea05acb8a022 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 10:28:20 -0700 Subject: [PATCH 15/86] scsi: message: fusion: struct _CONFIG_PAGE_IOC_4: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct _CONFIG_PAGE_IOC_4 with a modern flexible array. Additionally add __counted_by annotation since SEP is only ever accessed after updating ACtiveSEP: lsi/mpi_cnfg.h: IOC_4_SEP SEP[] __counted_by(ActiveSEP); /* 08h */ mptsas.c: ii = IOCPage4Ptr->ActiveSEP++; mptsas.c: IOCPage4Ptr->SEP[ii].SEPTargetID = id; mptsas.c: IOCPage4Ptr->SEP[ii].SEPBus = channel; No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711172821.123936-6-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/message/fusion/lsi/mpi_cnfg.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h index bac49c162165..1167a16d8fb4 100644 --- a/drivers/message/fusion/lsi/mpi_cnfg.h +++ b/drivers/message/fusion/lsi/mpi_cnfg.h @@ -1077,21 +1077,13 @@ typedef struct _IOC_4_SEP } IOC_4_SEP, MPI_POINTER PTR_IOC_4_SEP, Ioc4Sep_t, MPI_POINTER pIoc4Sep_t; -/* - * Host code (drivers, BIOS, utilities, etc.) should leave this define set to - * one and check Header.PageLength at runtime. - */ -#ifndef MPI_IOC_PAGE_4_SEP_MAX -#define MPI_IOC_PAGE_4_SEP_MAX (1) -#endif - typedef struct _CONFIG_PAGE_IOC_4 { CONFIG_PAGE_HEADER Header; /* 00h */ U8 ActiveSEP; /* 04h */ U8 MaxSEP; /* 05h */ U16 Reserved1; /* 06h */ - IOC_4_SEP SEP[MPI_IOC_PAGE_4_SEP_MAX]; /* 08h */ + IOC_4_SEP SEP[] __counted_by(ActiveSEP); /* 08h */ } CONFIG_PAGE_IOC_4, MPI_POINTER PTR_CONFIG_PAGE_IOC_4, IOCPage4_t, MPI_POINTER pIOCPage4_t; From 6e5860b0ad4934baee8c7a202c02033b2631bb44 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 14:57:37 -0700 Subject: [PATCH 16/86] scsi: aacraid: Rearrange order of struct aac_srb_unit struct aac_srb_unit contains struct aac_srb, which contains struct sgmap, which ends in a (currently) "fake" (1-element) flexible array. Converting this to a flexible array is needed so that runtime bounds checking won't think the array is fixed size (i.e. under CONFIG_FORTIFY_SOURCE=y and/or CONFIG_UBSAN_BOUNDS=y), as other parts of aacraid use struct sgmap as a flexible array. It is not legal to have a flexible array in the middle of a structure, so it either needs to be split up or rearranged so that it is at the end of the structure. Luckily, struct aac_srb_unit, which is exclusively consumed/updated by aac_send_safw_bmic_cmd(), does not depend on member ordering. The values set in the on-stack struct aac_srb_unit instance "srbu" by the only two callers, aac_issue_safw_bmic_identify() and aac_get_safw_ciss_luns(), do not contain anything in srbu.srb.sgmap.sg, and they both implicitly initialize srbu.srb.sgmap.count to 0 during memset(). For example: memset(&srbu, 0, sizeof(struct aac_srb_unit)); srbcmd = &srbu.srb; srbcmd->flags = cpu_to_le32(SRB_DataIn); srbcmd->cdb[0] = CISS_REPORT_PHYSICAL_LUNS; srbcmd->cdb[1] = 2; /* extended reporting */ srbcmd->cdb[8] = (u8)(datasize >> 8); srbcmd->cdb[9] = (u8)(datasize); rcode = aac_send_safw_bmic_cmd(dev, &srbu, phys_luns, datasize); During aac_send_safw_bmic_cmd(), a separate srb is mapped into DMA, and has srbu.srb copied into it: srb = fib_data(fibptr); memcpy(srb, &srbu->srb, sizeof(struct aac_srb)); Only then is srb.sgmap.count written and srb->sg populated: srb->count = cpu_to_le32(xfer_len); sg64 = (struct sgmap64 *)&srb->sg; sg64->count = cpu_to_le32(1); sg64->sg[0].addr[1] = cpu_to_le32(upper_32_bits(addr)); sg64->sg[0].addr[0] = cpu_to_le32(lower_32_bits(addr)); sg64->sg[0].count = cpu_to_le32(xfer_len); But this is happening in the DMA memory, not in srbu.srb. An attempt to copy the changes back to srbu does happen: /* * Copy the updated data for other dumping or other usage if * needed */ memcpy(&srbu->srb, srb, sizeof(struct aac_srb)); But this was never correct: the sg64 (3 u32s) overlap of srb.sg (2 u32s) always meant that srbu.srb would have held truncated information and any attempt to walk srbu.srb.sg.sg based on the value of srbu.srb.sg.count would result in attempting to parse past the end of srbu.srb.sg.sg[0] into srbu.srb_reply. After getting a reply from hardware, the reply is copied into srbu.srb_reply: srb_reply = (struct aac_srb_reply *)fib_data(fibptr); memcpy(&srbu->srb_reply, srb_reply, sizeof(struct aac_srb_reply)); This has always been fixed-size, so there's no issue here. It is worth noting that the two callers _never check_ srbu contents -- neither srbu.srb nor srbu.srb_reply is examined. (They depend on the mapped xfer_buf instead.) Therefore, the ordering of members in struct aac_srb_unit does not matter, and the flexible array member can moved to the end. (Additionally, the two memcpy()s that update srbu could be entirely removed as they are never consumed, but I left that as-is.) Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711215739.208776-1-kees@kernel.org Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aacraid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 7d5a155073c6..9b66fa29fb05 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -2029,8 +2029,8 @@ struct aac_srb_reply }; struct aac_srb_unit { - struct aac_srb srb; struct aac_srb_reply srb_reply; + struct aac_srb srb; }; /* From fdb1db6ea7f66cad970b19b5cd341b8386350bca Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 14:57:38 -0700 Subject: [PATCH 17/86] scsi: aacraid: struct {user,}sgmap{,64,raw}: Replace 1-element arrays with flexible arrays Replace the deprecated[1] use of 1-element arrays in struct sgmap, struct sgmap64, struct sgmapraw, struct user_sgmap, and struct user_sgmap64 with modern flexible arrays. Additionally remove struct user_sgmapraw as it is unused. The resulting binary output differences from this change are limited only to stack space consumption of the smaller "srbu" variable in aac_issue_safw_bmic_identify() and aac_get_safw_ciss_luns(), as well as the smaller associated pair of memcpy()s in aac_send_safw_bmic_cmd(). Artificially growing the size of srbu back to its prior size removes all binary differences[2]. As an aside, after studying the aacraid driver code I wonder how aac_send_wellness_command() ever works. It is reporting a size 4 bytes too small for what it has constructed in memory in the DMA region: sgentry64 is size 12, whereas sgentry is size 8. Perhaps the hardware doesn't care. (Regardless, it is unchanged by this patch.) Link: https://github.com/KSPP/linux/issues/79 [1] Link: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=dev/v6.10-rc2/1-element&id=45e6226bcbc5e982541754eca7ac29f403e82f5e [2] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711215739.208776-2-kees@kernel.org Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aachba.c | 26 ++++++++++++-------------- drivers/scsi/aacraid/aacraid.h | 15 +++++---------- drivers/scsi/aacraid/commctrl.c | 4 ++-- drivers/scsi/aacraid/comminit.c | 3 +-- drivers/scsi/aacraid/commsup.c | 5 +++-- 5 files changed, 23 insertions(+), 30 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index b22857c6f3f4..6a7159badebb 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -1267,7 +1267,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3 return ret; command = ContainerRawIo; fibsize = sizeof(struct aac_raw_io) + - ((le32_to_cpu(readcmd->sg.count)-1) * sizeof(struct sgentryraw)); + (le32_to_cpu(readcmd->sg.count) * sizeof(struct sgentryraw)); } BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1302,7 +1302,7 @@ static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u if (ret < 0) return ret; fibsize = sizeof(struct aac_read64) + - ((le32_to_cpu(readcmd->sg.count) - 1) * + (le32_to_cpu(readcmd->sg.count) * sizeof (struct sgentry64)); BUG_ON (fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1337,7 +1337,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 if (ret < 0) return ret; fibsize = sizeof(struct aac_read) + - ((le32_to_cpu(readcmd->sg.count) - 1) * + (le32_to_cpu(readcmd->sg.count) * sizeof (struct sgentry)); BUG_ON (fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1401,7 +1401,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u return ret; command = ContainerRawIo; fibsize = sizeof(struct aac_raw_io) + - ((le32_to_cpu(writecmd->sg.count)-1) * sizeof (struct sgentryraw)); + (le32_to_cpu(writecmd->sg.count) * sizeof(struct sgentryraw)); } BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1436,7 +1436,7 @@ static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, if (ret < 0) return ret; fibsize = sizeof(struct aac_write64) + - ((le32_to_cpu(writecmd->sg.count) - 1) * + (le32_to_cpu(writecmd->sg.count) * sizeof (struct sgentry64)); BUG_ON (fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1473,7 +1473,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3 if (ret < 0) return ret; fibsize = sizeof(struct aac_write) + - ((le32_to_cpu(writecmd->sg.count) - 1) * + (le32_to_cpu(writecmd->sg.count) * sizeof (struct sgentry)); BUG_ON (fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1592,9 +1592,9 @@ static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd) /* * Build Scatter/Gather list */ - fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) + + fibsize = sizeof(struct aac_srb) + ((le32_to_cpu(srbcmd->sg.count) & 0xff) * - sizeof (struct sgentry64)); + sizeof(struct sgentry64)); BUG_ON (fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1624,7 +1624,7 @@ static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd) * Build Scatter/Gather list */ fibsize = sizeof (struct aac_srb) + - (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) * + ((le32_to_cpu(srbcmd->sg.count) & 0xff) * sizeof (struct sgentry)); BUG_ON (fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr))); @@ -1693,8 +1693,7 @@ static int aac_send_safw_bmic_cmd(struct aac_dev *dev, fibptr->hw_fib_va->header.XferState &= ~cpu_to_le32(FastResponseCapable); - fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry) + - sizeof(struct sgentry64); + fibsize = sizeof(struct aac_srb) + sizeof(struct sgentry64); /* allocate DMA buffer for response */ addr = dma_map_single(&dev->pdev->dev, xfer_buf, xfer_len, @@ -2267,7 +2266,7 @@ int aac_get_adapter_info(struct aac_dev* dev) dev->a_ops.adapter_bounds = aac_bounds_32; dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size - sizeof(struct aac_fibhdr) - - sizeof(struct aac_write) + sizeof(struct sgentry)) / + sizeof(struct aac_write)) / sizeof(struct sgentry); if (dev->dac_support) { dev->a_ops.adapter_read = aac_read_block64; @@ -2278,8 +2277,7 @@ int aac_get_adapter_info(struct aac_dev* dev) dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size - sizeof(struct aac_fibhdr) - - sizeof(struct aac_write64) + - sizeof(struct sgentry64)) / + sizeof(struct aac_write64)) / sizeof(struct sgentry64); } else { dev->a_ops.adapter_read = aac_read_block; diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 9b66fa29fb05..63e74266d7a2 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -507,32 +507,27 @@ struct sge_ieee1212 { struct sgmap { __le32 count; - struct sgentry sg[1]; + struct sgentry sg[]; }; struct user_sgmap { u32 count; - struct user_sgentry sg[1]; + struct user_sgentry sg[]; }; struct sgmap64 { __le32 count; - struct sgentry64 sg[1]; + struct sgentry64 sg[]; }; struct user_sgmap64 { u32 count; - struct user_sgentry64 sg[1]; + struct user_sgentry64 sg[]; }; struct sgmapraw { __le32 count; - struct sgentryraw sg[1]; -}; - -struct user_sgmapraw { - u32 count; - struct user_sgentryraw sg[1]; + struct sgentryraw sg[]; }; struct creation_info diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index e7cc927ed952..68240d6f27ab 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -523,7 +523,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) goto cleanup; } - if ((fibsize < (sizeof(struct user_aac_srb) - sizeof(struct user_sgentry))) || + if ((fibsize < sizeof(struct user_aac_srb)) || (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))) { rcode = -EINVAL; goto cleanup; @@ -561,7 +561,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) rcode = -EINVAL; goto cleanup; } - actual_fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry) + + actual_fibsize = sizeof(struct aac_srb) + ((user_srbcmd->sg.count & 0xff) * sizeof(struct sgentry)); actual_fibsize64 = actual_fibsize + (user_srbcmd->sg.count & 0xff) * (sizeof(struct sgentry64) - sizeof(struct sgentry)); diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index bd99c5492b7d..fee857236991 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -522,8 +522,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) spin_lock_init(&dev->iq_lock); dev->max_fib_size = sizeof(struct hw_fib); dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size - - sizeof(struct aac_fibhdr) - - sizeof(struct aac_write) + sizeof(struct sgentry)) + - sizeof(struct aac_fibhdr) - sizeof(struct aac_write)) / sizeof(struct sgentry); dev->comm_interface = AAC_COMM_PRODUCER; dev->raw_io_interface = dev->raw_io_64 = 0; diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 25cee03d7f97..47287559c768 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -2327,8 +2327,9 @@ static int aac_send_wellness_command(struct aac_dev *dev, char *wellness_str, sg64->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff)); sg64->sg[0].count = cpu_to_le32(datasize); - ret = aac_fib_send(ScsiPortCommand64, fibptr, sizeof(struct aac_srb), - FsaNormal, 1, 1, NULL, NULL); + ret = aac_fib_send(ScsiPortCommand64, fibptr, + sizeof(struct aac_srb) + sizeof(struct sgentry), + FsaNormal, 1, 1, NULL, NULL); dma_free_coherent(&dev->pdev->dev, datasize, dma_buf, addr); From 88e6804fb323d1dbe477f002a89755f8b034e890 Mon Sep 17 00:00:00 2001 From: "Bao D. Nguyen" Date: Tue, 23 Jul 2024 20:49:32 -0700 Subject: [PATCH 18/86] scsi: ufs: core: Support Updating UIC Command Timeout The default UIC command timeout still remains 500ms. Allow platform drivers to override the UIC command timeout if desired. In a real product, the 500ms timeout value is probably good enough. However, during the product development where there are a lot of logging and debug messages being printed to the UART console, interrupt starvations happen occasionally because the UART may print long debug messages from different modules in the system. While printing, the UART may have interrupts disabled for more than 500ms, causing UIC command timeout. The UIC command timeout would trigger more printing from the UFS driver, and eventually a watchdog timeout may occur unnecessarily. Add support for overriding the UIC command timeout value with the newly created uic_cmd_timeout kernel module parameter. Default value is 500ms. Supported values range from 500ms to 2 seconds. Signed-off-by: Bao D. Nguyen Link: https://lore.kernel.org/r/e4e1c87f3f867f270a3d4b5d57a00139ff0e9741.1721792309.git.quic_nguyenb@quicinc.com Suggested-by: Bart Van Assche Reviewed-by: Bart Van Assche Reviewed-by: Manivannan Sadhasivam Reviewed-by: Peter Wang Signed-off-by: Martin K. Petersen --- drivers/ufs/core/ufshcd.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index dc757ba47522..0dd26059f5d7 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -51,8 +51,10 @@ /* UIC command timeout, unit: ms */ -#define UIC_CMD_TIMEOUT 500 - +enum { + UIC_CMD_TIMEOUT_DEFAULT = 500, + UIC_CMD_TIMEOUT_MAX = 2000, +}; /* NOP OUT retries waiting for NOP IN response */ #define NOP_OUT_RETRIES 10 /* Timeout after 50 msecs if NOP OUT hangs without response */ @@ -116,6 +118,23 @@ static bool is_mcq_supported(struct ufs_hba *hba) module_param(use_mcq_mode, bool, 0644); MODULE_PARM_DESC(use_mcq_mode, "Control MCQ mode for controllers starting from UFSHCI 4.0. 1 - enable MCQ, 0 - disable MCQ. MCQ is enabled by default"); +static unsigned int uic_cmd_timeout = UIC_CMD_TIMEOUT_DEFAULT; + +static int uic_cmd_timeout_set(const char *val, const struct kernel_param *kp) +{ + return param_set_uint_minmax(val, kp, UIC_CMD_TIMEOUT_DEFAULT, + UIC_CMD_TIMEOUT_MAX); +} + +static const struct kernel_param_ops uic_cmd_timeout_ops = { + .set = uic_cmd_timeout_set, + .get = param_get_uint, +}; + +module_param_cb(uic_cmd_timeout, &uic_cmd_timeout_ops, &uic_cmd_timeout, 0644); +MODULE_PARM_DESC(uic_cmd_timeout, + "UFS UIC command timeout in milliseconds. Defaults to 500ms. Supported values range from 500ms to 2 seconds inclusively"); + #define ufshcd_toggle_vreg(_dev, _vreg, _on) \ ({ \ int _ret; \ @@ -2438,7 +2457,7 @@ static inline bool ufshcd_ready_for_uic_cmd(struct ufs_hba *hba) { u32 val; int ret = read_poll_timeout(ufshcd_readl, val, val & UIC_COMMAND_READY, - 500, UIC_CMD_TIMEOUT * 1000, false, hba, + 500, uic_cmd_timeout * 1000, false, hba, REG_CONTROLLER_STATUS); return ret == 0; } @@ -2498,7 +2517,7 @@ ufshcd_wait_for_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd) lockdep_assert_held(&hba->uic_cmd_mutex); if (wait_for_completion_timeout(&uic_cmd->done, - msecs_to_jiffies(UIC_CMD_TIMEOUT))) { + msecs_to_jiffies(uic_cmd_timeout))) { ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; } else { ret = -ETIMEDOUT; @@ -4266,7 +4285,7 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd) } if (!wait_for_completion_timeout(hba->uic_async_done, - msecs_to_jiffies(UIC_CMD_TIMEOUT))) { + msecs_to_jiffies(uic_cmd_timeout))) { dev_err(hba->dev, "pwr ctrl cmd 0x%x with mode 0x%x completion timeout\n", cmd->command, cmd->argument3); From 5b8963c53de11dcef2b6241452988427db5773ec Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:05 -0700 Subject: [PATCH 19/86] scsi: lpfc: Change diagnostic log flag during receipt of unknown ELS cmds During diagnostics, it has been determined that the 0115 log message for receipt of unknown ELS cmds does not benefit from trace buffer dumps. The trace buffer dump floods the console with unnecessary information, and the singular LOG_ELS flag has proven more beneficial in debugging efforts when dealing with unknown ELS cmds. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-2-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_els.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 929cbfc95163..50c0c0c91fdc 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -10742,7 +10742,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, rjt_exp = LSEXP_NOTHING_MORE; /* Unknown ELS command received from NPORT */ - lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, + lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0115 Unknown ELS command x%x " "received from NPORT x%x\n", cmd, did); if (newnode) From f1bfe32073964372c1dfa572480eb43d44e34909 Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:06 -0700 Subject: [PATCH 20/86] scsi: lpfc: Remove redundant vport assignment when building an abort request The lpfc_sli_issue_abort_iotag() routine has a redundant assignment of abtsiocbp->vport = vport; The duplicate lines are from a previous refactoring, and this patch removes the accidental redundancy. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-3-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_sli.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 88debef2fb6d..d240bbded4c8 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -12473,8 +12473,6 @@ lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, cmdiocb->iocb.ulpClass, LPFC_WQE_CQ_ID_DEFAULT, ia, false); - abtsiocbp->vport = vport; - /* ABTS WQE must go to the same WQ as the WQE to be aborted */ abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx; if (cmdiocb->cmd_flag & LPFC_IO_FCP) From 2be1d4f11944cd6283cb97268b3e17c4424945ca Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:07 -0700 Subject: [PATCH 21/86] scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths When the HBA is undergoing a reset or is handling an errata event, NULL ptr dereference crashes may occur in routines such as lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or lpfc_abort_handler(). Add NULL ptr checks before dereferencing hdwq pointers that may have been freed due to operations colliding with a reset or errata event handler. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-4-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_hbadisc.c | 3 ++- drivers/scsi/lpfc/lpfc_scsi.c | 13 +++++++++++-- drivers/scsi/lpfc/lpfc_sli.c | 11 +++++++++++ 3 files changed, 24 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 6943f6c6395c..f21c5993e8d7 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -175,7 +175,8 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) ndlp->nlp_state, ndlp->fc4_xpt_flags); /* Don't schedule a worker thread event if the vport is going down. */ - if (test_bit(FC_UNLOADING, &vport->load_flag)) { + if (test_bit(FC_UNLOADING, &vport->load_flag) || + !test_bit(HBA_SETUP, &phba->hba_flag)) { spin_lock_irqsave(&ndlp->lock, iflags); ndlp->rport = NULL; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 98ce9d97a225..60cd60ebff38 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5555,11 +5555,20 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd) iocb = &lpfc_cmd->cur_iocbq; if (phba->sli_rev == LPFC_SLI_REV4) { - pring_s4 = phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring; - if (!pring_s4) { + /* if the io_wq & pring are gone, the port was reset. */ + if (!phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq || + !phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring) { + lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, + "2877 SCSI Layer I/O Abort Request " + "IO CMPL Status x%x ID %d LUN %llu " + "HBA_SETUP %d\n", FAILED, + cmnd->device->id, + (u64)cmnd->device->lun, + test_bit(HBA_SETUP, &phba->hba_flag)); ret = FAILED; goto out_unlock_hba; } + pring_s4 = phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring; spin_lock(&pring_s4->ring_lock); } /* the command is in process of being cancelled */ diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index d240bbded4c8..332b8d2348e9 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -4687,6 +4687,17 @@ lpfc_sli_flush_io_rings(struct lpfc_hba *phba) /* Look on all the FCP Rings for the iotag */ if (phba->sli_rev >= LPFC_SLI_REV4) { for (i = 0; i < phba->cfg_hdw_queue; i++) { + if (!phba->sli4_hba.hdwq || + !phba->sli4_hba.hdwq[i].io_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "7777 hdwq's deleted %lx " + "%lx %x %x\n", + phba->pport->load_flag, + phba->hba_flag, + phba->link_state, + phba->sli.sli_flag); + return; + } pring = phba->sli4_hba.hdwq[i].io_wq->pring; spin_lock_irq(&pring->ring_lock); From 3976beb1b410441bab9c3726e2ba76cc7a4c0b2d Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:08 -0700 Subject: [PATCH 22/86] scsi: lpfc: Fix unintentional double clearing of vmid_flag The vport->vmid_flag is unintentionally cleared twice after an issue_lip via the lpfc_reinit_vmid routine(). The first call to lpfc_reinit_vmid() is in lpfc_cmpl_els_flogi(). Then lpfc_cmpl_els_flogi_fabric() calls lpfc_register_new_vport(), which calls lpfc_cmpl_reg_new_vport() when the mbox command completes and calls lpfc_reinit_vmid() a second time. Fix by moving the vmid_flag clear outside of the lpfc_reinit_vmid() routine so that vmid_flag is only cleared once upon FLOGI completion. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-5-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_els.c | 4 +++- drivers/scsi/lpfc/lpfc_vmid.c | 1 - 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 50c0c0c91fdc..6d49e23f6a62 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1099,8 +1099,10 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, sp->cmn.priority_tagging, kref_read(&ndlp->kref)); /* reinitialize the VMID datastructure before returning */ - if (lpfc_is_vmid_enabled(phba)) + if (lpfc_is_vmid_enabled(phba)) { lpfc_reinit_vmid(vport); + vport->vmid_flag = 0; + } if (sp->cmn.priority_tagging) vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA | LPFC_VMID_TYPE_PRIO); diff --git a/drivers/scsi/lpfc/lpfc_vmid.c b/drivers/scsi/lpfc/lpfc_vmid.c index 773e02ae20c3..cf8ba840d0ea 100644 --- a/drivers/scsi/lpfc/lpfc_vmid.c +++ b/drivers/scsi/lpfc/lpfc_vmid.c @@ -321,6 +321,5 @@ lpfc_reinit_vmid(struct lpfc_vport *vport) if (!hash_empty(vport->hash_table)) hash_for_each_safe(vport->hash_table, bucket, tmp, cur, hnode) hash_del(&cur->hnode); - vport->vmid_flag = 0; write_unlock(&vport->vmid_lock); } From b5c18c9dd138733c16893613345af44deadcf05e Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:09 -0700 Subject: [PATCH 23/86] scsi: lpfc: Fix unsolicited FLOGI kref imbalance when in direct attached topology In direct attached topology, certain target vendors that are quick to issue FLOGI followed by a cable pull for more than dev_loss_tmo may result in a kref imbalance for the remote port ndlp object. Add an nlp_get when the defer_flogi_acc flag is set. This is expected to balance the nlp_put in the defer_flogi_acc clause in the lpfc_issue_els_flogi() routine. Because we need to retain the ndlp ptr, reorganize all of the defer_flogi_acc information into one lpfc_defer_flogi_acc struct. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-6-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc.h | 12 ++++++--- drivers/scsi/lpfc/lpfc_els.c | 46 +++++++++++++++++++------------- drivers/scsi/lpfc/lpfc_hbadisc.c | 11 ++++++-- 3 files changed, 46 insertions(+), 23 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 7c147d6ea8a8..e5a9c5a323f8 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -306,6 +306,14 @@ struct lpfc_stats { struct lpfc_hba; +/* Data structure to keep withheld FLOGI_ACC information */ +struct lpfc_defer_flogi_acc { + bool flag; + u16 rx_id; + u16 ox_id; + struct lpfc_nodelist *ndlp; + +}; #define LPFC_VMID_TIMER 300 /* timer interval in seconds */ @@ -1430,9 +1438,7 @@ struct lpfc_hba { uint16_t vlan_id; struct list_head fcf_conn_rec_list; - bool defer_flogi_acc_flag; - uint16_t defer_flogi_acc_rx_id; - uint16_t defer_flogi_acc_ox_id; + struct lpfc_defer_flogi_acc defer_flogi_acc; spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */ struct list_head ct_ev_waiters; diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 6d49e23f6a62..b5a8d050419a 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1392,7 +1392,7 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; /* Check for a deferred FLOGI ACC condition */ - if (phba->defer_flogi_acc_flag) { + if (phba->defer_flogi_acc.flag) { /* lookup ndlp for received FLOGI */ ndlp = lpfc_findnode_did(vport, 0); if (!ndlp) @@ -1406,34 +1406,38 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, if (phba->sli_rev == LPFC_SLI_REV4) { bf_set(wqe_ctxt_tag, &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, - phba->defer_flogi_acc_rx_id); + phba->defer_flogi_acc.rx_id); bf_set(wqe_rcvoxid, &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, - phba->defer_flogi_acc_ox_id); + phba->defer_flogi_acc.ox_id); } else { icmd = &defer_flogi_acc.iocb; - icmd->ulpContext = phba->defer_flogi_acc_rx_id; + icmd->ulpContext = phba->defer_flogi_acc.rx_id; icmd->unsli3.rcvsli3.ox_id = - phba->defer_flogi_acc_ox_id; + phba->defer_flogi_acc.ox_id; } lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "3354 Xmit deferred FLOGI ACC: rx_id: x%x," " ox_id: x%x, hba_flag x%lx\n", - phba->defer_flogi_acc_rx_id, - phba->defer_flogi_acc_ox_id, phba->hba_flag); + phba->defer_flogi_acc.rx_id, + phba->defer_flogi_acc.ox_id, phba->hba_flag); /* Send deferred FLOGI ACC */ lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc, ndlp, NULL); - phba->defer_flogi_acc_flag = false; - vport->fc_myDID = did; + phba->defer_flogi_acc.flag = false; - /* Decrement ndlp reference count to indicate the node can be - * released when other references are removed. + /* Decrement the held ndlp that was incremented when the + * deferred flogi acc flag was set. */ - lpfc_nlp_put(ndlp); + if (phba->defer_flogi_acc.ndlp) { + lpfc_nlp_put(phba->defer_flogi_acc.ndlp); + phba->defer_flogi_acc.ndlp = NULL; + } + + vport->fc_myDID = did; } return 0; @@ -8456,9 +8460,9 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, /* Defer ACC response until AFTER we issue a FLOGI */ if (!test_bit(HBA_FLOGI_ISSUED, &phba->hba_flag)) { - phba->defer_flogi_acc_rx_id = bf_get(wqe_ctxt_tag, + phba->defer_flogi_acc.rx_id = bf_get(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com); - phba->defer_flogi_acc_ox_id = bf_get(wqe_rcvoxid, + phba->defer_flogi_acc.ox_id = bf_get(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com); vport->fc_myDID = did; @@ -8466,11 +8470,17 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "3344 Deferring FLOGI ACC: rx_id: x%x," " ox_id: x%x, hba_flag x%lx\n", - phba->defer_flogi_acc_rx_id, - phba->defer_flogi_acc_ox_id, phba->hba_flag); + phba->defer_flogi_acc.rx_id, + phba->defer_flogi_acc.ox_id, phba->hba_flag); - phba->defer_flogi_acc_flag = true; + phba->defer_flogi_acc.flag = true; + /* This nlp_get is paired with nlp_puts that reset the + * defer_flogi_acc.flag back to false. We need to retain + * a kref on the ndlp until the deferred FLOGI ACC is + * processed or cancelled. + */ + phba->defer_flogi_acc.ndlp = lpfc_nlp_get(ndlp); return 0; } @@ -10506,7 +10516,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, lpfc_els_rcv_flogi(vport, elsiocb, ndlp); /* retain node if our response is deferred */ - if (phba->defer_flogi_acc_flag) + if (phba->defer_flogi_acc.flag) break; if (newnode) lpfc_disc_state_machine(vport, ndlp, NULL, diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index f21c5993e8d7..35c9181c6608 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1255,7 +1255,14 @@ lpfc_linkdown(struct lpfc_hba *phba) lpfc_scsi_dev_block(phba); offline = pci_channel_offline(phba->pcidev); - phba->defer_flogi_acc_flag = false; + /* Decrement the held ndlp if there is a deferred flogi acc */ + if (phba->defer_flogi_acc.flag) { + if (phba->defer_flogi_acc.ndlp) { + lpfc_nlp_put(phba->defer_flogi_acc.ndlp); + phba->defer_flogi_acc.ndlp = NULL; + } + } + phba->defer_flogi_acc.flag = false; /* Clear external loopback plug detected flag */ phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; @@ -1377,7 +1384,7 @@ lpfc_linkup_port(struct lpfc_vport *vport) (vport != phba->pport)) return; - if (phba->defer_flogi_acc_flag) { + if (phba->defer_flogi_acc.flag) { clear_bit(FC_ABORT_DISCOVERY, &vport->fc_flag); clear_bit(FC_RSCN_MODE, &vport->fc_flag); clear_bit(FC_NLP_MORE, &vport->fc_flag); From 1f0f7679ad8942f810b0f19ee9cf098c3502d66a Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:10 -0700 Subject: [PATCH 24/86] scsi: lpfc: Update PRLO handling in direct attached topology A kref imbalance occurs when handling an unsolicited PRLO in direct attached topology. Rework PRLO rcv handling when in MAPPED state. Save the state that we were handling a PRLO by setting nlp_last_elscmd to ELS_CMD_PRLO. Then in the lpfc_cmpl_els_logo_acc() completion routine, manually restart discovery. By issuing the PLOGI, which nlp_gets, before nlp_put at the end of the lpfc_cmpl_els_logo_acc() routine, we are saving us from a final nlp_put. And, we are still allowing the unreg_rpi to happen. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-7-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_els.c | 27 ++++++++++++++++----------- drivers/scsi/lpfc/lpfc_nportdisc.c | 22 ++++++++++++++++++++-- 2 files changed, 36 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index b5a8d050419a..de0ec945d2f1 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -5246,9 +5246,10 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, /* ACC to LOGO completes to NPort */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0109 ACC to LOGO completes to NPort x%x refcnt %d " - "Data: x%x x%x x%x\n", - ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag, - ndlp->nlp_state, ndlp->nlp_rpi); + "last els x%x Data: x%x x%x x%x\n", + ndlp->nlp_DID, kref_read(&ndlp->kref), + ndlp->nlp_last_elscmd, ndlp->nlp_flag, ndlp->nlp_state, + ndlp->nlp_rpi); /* This clause allows the LOGO ACC to complete and free resources * for the Fabric Domain Controller. It does deliberately skip @@ -5260,18 +5261,22 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, goto out; if (ndlp->nlp_state == NLP_STE_NPR_NODE) { - /* If PLOGI is being retried, PLOGI completion will cleanup the - * node. The NLP_NPR_2B_DISC flag needs to be retained to make - * progress on nodes discovered from last RSCN. - */ - if ((ndlp->nlp_flag & NLP_DELAY_TMO) && - (ndlp->nlp_last_elscmd == ELS_CMD_PLOGI)) - goto out; - if (ndlp->nlp_flag & NLP_RPI_REGISTERED) lpfc_unreg_rpi(vport, ndlp); + /* If came from PRLO, then PRLO_ACC is done. + * Start rediscovery now. + */ + if (ndlp->nlp_last_elscmd == ELS_CMD_PRLO) { + spin_lock_irq(&ndlp->lock); + ndlp->nlp_flag |= NLP_NPR_2B_DISC; + spin_unlock_irq(&ndlp->lock); + ndlp->nlp_prev_state = ndlp->nlp_state; + lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); + lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); + } } + out: /* * The driver received a LOGO from the rport and has ACK'd it. diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index f6a53446e57f..4574716c8764 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -2652,8 +2652,26 @@ lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, /* flush the target */ lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); - /* Treat like rcv logo */ - lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); + /* Send PRLO_ACC */ + spin_lock_irq(&ndlp->lock); + ndlp->nlp_flag |= NLP_LOGO_ACC; + spin_unlock_irq(&ndlp->lock); + lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); + + /* Save ELS_CMD_PRLO as the last elscmd and then set to NPR. + * lpfc_cmpl_els_logo_acc is expected to restart discovery. + */ + ndlp->nlp_last_elscmd = ELS_CMD_PRLO; + ndlp->nlp_prev_state = ndlp->nlp_state; + + lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_ELS | LOG_DISCOVERY, + "3422 DID x%06x nflag x%x lastels x%x ref cnt %u\n", + ndlp->nlp_DID, ndlp->nlp_flag, + ndlp->nlp_last_elscmd, + kref_read(&ndlp->kref)); + + lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); + return ndlp->nlp_state; } From 62b52495e6a12b37ba3f790f815e717737643bf7 Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:11 -0700 Subject: [PATCH 25/86] scsi: lpfc: Update lpfc version to 14.4.0.4 Update lpfc version to 14.4.0.4 Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-8-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index 7ac9ef281881..2fe0386a1fee 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -20,7 +20,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "14.4.0.3" +#define LPFC_DRIVER_VERSION "14.4.0.4" #define LPFC_DRIVER_NAME "lpfc" /* Used for SLI 2/3 */ From 5b247f03779d3601dcb080446bd7d680149a2aee Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Fri, 26 Jul 2024 16:15:12 -0700 Subject: [PATCH 26/86] scsi: lpfc: Copyright updates for 14.4.0.4 patches Update copyrights to 2024 for files modified in the 14.4.0.4 patch set. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240726231512.92867-9-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_vmid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_vmid.c b/drivers/scsi/lpfc/lpfc_vmid.c index cf8ba840d0ea..cc3e4736f2fe 100644 --- a/drivers/scsi/lpfc/lpfc_vmid.c +++ b/drivers/scsi/lpfc/lpfc_vmid.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term * + * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term * * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * From 0e21e73384d324f75ea16f3d622cfc433fa6209b Mon Sep 17 00:00:00 2001 From: David Strahan Date: Thu, 11 Jul 2024 14:47:00 -0500 Subject: [PATCH 27/86] scsi: smartpqi: Add new controller PCI IDs All PCI ID entries in hex. Add new inagile PCI IDs: VID / DID / SVID / SDID ---- ---- ---- ---- SMART-HBA 8242-24i 9005 / 028f / 1ff9 / 0045 RAID 8236-16i 9005 / 028f / 1ff9 / 0046 RAID 8240-24i 9005 / 028f / 1ff9 / 0047 SMART-HBA 8238-16i 9005 / 028f / 1ff9 / 0048 PM8222-SHBA 9005 / 028f / 1ff9 / 004a RAID PM8204-2GB 9005 / 028f / 1ff9 / 004b RAID PM8204-4GB 9005 / 028f / 1ff9 / 004c PM8222-HBA 9005 / 028f / 1ff9 / 004f MT0804M6R 9005 / 028f / 1ff9 / 0051 MT0801M6E 9005 / 028f / 1ff9 / 0052 MT0808M6R 9005 / 028f / 1ff9 / 0053 MT0800M6H 9005 / 028f / 1ff9 / 0054 RS0800M5H24i 9005 / 028f / 1ff9 / 006b RS0800M5E8i 9005 / 028f / 1ff9 / 006c RS0800M5H8i 9005 / 028f / 1ff9 / 006d RS0804M5R16i 9005 / 028f / 1ff9 / 006f RS0800M5E24i 9005 / 028f / 1ff9 / 0070 RS0800M5H16i 9005 / 028f / 1ff9 / 0071 RS0800M5E16i 9005 / 028f / 1ff9 / 0072 RT0800M7E 9005 / 028f / 1ff9 / 0086 RT0800M7H 9005 / 028f / 1ff9 / 0087 RT0804M7R 9005 / 028f / 1ff9 / 0088 RT0808M7R 9005 / 028f / 1ff9 / 0089 RT1608M6R16i 9005 / 028f / 1ff9 / 00a1 Add new h3c pci_id: VID / DID / SVID / SDID ---- ---- ---- ---- UN RAID P4408-Mr-2 9005 / 028f / 193d / 1110 Add new powerleader pci ids: VID / DID / SVID / SDID ---- ---- ---- ---- PL SmartROC PM8204 9005 / 028f / 1f3a / 0104 Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Reviewed-by: Mike McGowen Signed-off-by: David Strahan Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240711194704.982400-2-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 104 ++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 24c7cb285dca..9166dfa1fedc 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -9472,6 +9472,10 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x193d, 0x110b) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x193d, 0x1110) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x193d, 0x8460) @@ -9588,6 +9592,14 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x1bd4, 0x0089) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x00a1) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1f3a, 0x0104) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x19e5, 0xd227) @@ -10180,6 +10192,98 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x1137, 0x02fa) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0045) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0046) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0047) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0048) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x004a) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x004b) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x004c) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x004f) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0051) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0052) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0053) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0054) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x006b) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x006c) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x006d) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x006f) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0070) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0071) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0072) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0086) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0087) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0088) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x0089) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x1e93, 0x1000) From bb0f5445b27f4a8f8359cc0f36a59a397b4b5e0c Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Thu, 11 Jul 2024 14:47:01 -0500 Subject: [PATCH 28/86] scsi: smartpqi: Improve accuracy/performance of raid-bypass-counter The original implementation of this counter used an atomic variable. However, this implementation negatively impacted performance in some configurations. Switch to using per_cpu variables. Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Reviewed-by: Mike McGowen Co-developed-by: Mahesh Rajashekhara Signed-off-by: Mahesh Rajashekhara Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240711194704.982400-3-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 2 +- drivers/scsi/smartpqi/smartpqi_init.c | 30 +++++++++++++++++++++++---- 2 files changed, 27 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index cdedc271857a..023fbce04e7a 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -1158,7 +1158,7 @@ struct pqi_scsi_dev { struct pqi_stream_data stream_data[NUM_STREAMS_PER_LUN]; atomic_t scsi_cmds_outstanding[PQI_MAX_LUNS_PER_DEVICE]; - unsigned int raid_bypass_cnt; + u64 __percpu *raid_bypass_cnt; struct pqi_tmf_work tmf_work[PQI_MAX_LUNS_PER_DEVICE]; }; diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 9166dfa1fedc..eaebe3cc00aa 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1508,6 +1508,12 @@ static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, if (rc) goto error; + device->raid_bypass_cnt = alloc_percpu(u64); + if (!device->raid_bypass_cnt) { + rc = -ENOMEM; + goto error; + } + device->raid_map = raid_map; return 0; @@ -2099,6 +2105,10 @@ static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, /* To prevent this from being freed later. */ new_device->raid_map = NULL; } + if (new_device->raid_bypass_enabled && existing_device->raid_bypass_cnt == NULL) { + existing_device->raid_bypass_cnt = new_device->raid_bypass_cnt; + new_device->raid_bypass_cnt = NULL; + } existing_device->raid_bypass_configured = new_device->raid_bypass_configured; existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled; } @@ -2121,6 +2131,7 @@ static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, static inline void pqi_free_device(struct pqi_scsi_dev *device) { if (device) { + free_percpu(device->raid_bypass_cnt); kfree(device->raid_map); kfree(device); } @@ -6007,6 +6018,7 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm u16 hw_queue; struct pqi_queue_group *queue_group; bool raid_bypassed; + u64 *raid_bypass_cnt; u8 lun; scmd->host_scribble = PQI_NO_COMPLETION; @@ -6053,7 +6065,8 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) { raid_bypassed = true; - device->raid_bypass_cnt++; + raid_bypass_cnt = per_cpu_ptr(device->raid_bypass_cnt, smp_processor_id()); + (*raid_bypass_cnt)++; } } if (!raid_bypassed) @@ -7350,7 +7363,9 @@ static ssize_t pqi_raid_bypass_cnt_show(struct device *dev, struct scsi_device *sdev; struct pqi_scsi_dev *device; unsigned long flags; - unsigned int raid_bypass_cnt; + u64 raid_bypass_cnt; + int cpu; + u64 *per_cpu_bypass_cnt_ptr; sdev = to_scsi_device(dev); ctrl_info = shost_to_hba(sdev->host); @@ -7366,11 +7381,18 @@ static ssize_t pqi_raid_bypass_cnt_show(struct device *dev, return -ENODEV; } - raid_bypass_cnt = device->raid_bypass_cnt; + raid_bypass_cnt = 0; + + if (device->raid_bypass_cnt) { + for_each_online_cpu(cpu) { + per_cpu_bypass_cnt_ptr = per_cpu_ptr(device->raid_bypass_cnt, cpu); + raid_bypass_cnt += *per_cpu_bypass_cnt_ptr; + } + } spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); - return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt); + return scnprintf(buffer, PAGE_SIZE, "0x%llx\n", raid_bypass_cnt); } static ssize_t pqi_sas_ncq_prio_enable_show(struct device *dev, From f1393d52e6cda9c20f12643cbecf1e1dc357e0e2 Mon Sep 17 00:00:00 2001 From: Gilbert Wu Date: Thu, 11 Jul 2024 14:47:02 -0500 Subject: [PATCH 29/86] scsi: smartpqi: revert propagate-the-multipath-failure-to-SML-quickly Correct a rare multipath failure issue by reverting commit 94a68c814328 ("scsi: smartpqi: Quickly propagate path failures to SCSI midlayer") [1]. Reason for revert: The patch propagated the path failure to SML quickly when one of the path fails during IO and AIO path gets disabled for a multipath device. But it created a new issue: when creating a volume on an encryption-enabled controller, the firmware reports the AIO path is disabled, which cause the driver to report a path failure to SML for a multipath device. There will be a new fix to handle "Illegal request" and "Invalid field in parameter list" on RAID path when the AIO path is disabled on a multipath device. [1] https://lore.kernel.org/all/164375209313.440833.9992416628621839233.stgit@brunhilda.pdev.net/ Fixes: 94a68c814328 ("scsi: smartpqi: Quickly propagate path failures to SCSI midlayer") Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Reviewed-by: Mike McGowen Signed-off-by: Gilbert Wu Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240711194704.982400-4-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index eaebe3cc00aa..d8df7440bbe1 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -2365,14 +2365,6 @@ static inline void pqi_mask_device(u8 *scsi3addr) scsi3addr[3] |= 0xc0; } -static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device) -{ - if (pqi_is_logical_device(device)) - return false; - - return (device->path_map & (device->path_map - 1)) != 0; -} - static inline bool pqi_expose_device(struct pqi_scsi_dev *device) { return !device->is_physical_device || !pqi_skip_device(device->scsi3addr); @@ -3269,14 +3261,12 @@ static void pqi_process_aio_io_error(struct pqi_io_request *io_request) int residual_count; int xfer_count; bool device_offline; - struct pqi_scsi_dev *device; scmd = io_request->scmd; error_info = io_request->error_info; host_byte = DID_OK; sense_data_length = 0; device_offline = false; - device = scmd->device->hostdata; switch (error_info->service_response) { case PQI_AIO_SERV_RESPONSE_COMPLETE: @@ -3301,14 +3291,8 @@ static void pqi_process_aio_io_error(struct pqi_io_request *io_request) break; case PQI_AIO_STATUS_AIO_PATH_DISABLED: pqi_aio_path_disabled(io_request); - if (pqi_is_multipath_device(device)) { - pqi_device_remove_start(device); - host_byte = DID_NO_CONNECT; - scsi_status = SAM_STAT_CHECK_CONDITION; - } else { - scsi_status = SAM_STAT_GOOD; - io_request->status = -EAGAIN; - } + scsi_status = SAM_STAT_GOOD; + io_request->status = -EAGAIN; break; case PQI_AIO_STATUS_NO_PATH_TO_DEVICE: case PQI_AIO_STATUS_INVALID_DEVICE: From 57abab70a5e0179b5fff7c4a6dfdbcbcc97ca910 Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Thu, 11 Jul 2024 14:47:03 -0500 Subject: [PATCH 30/86] scsi: smartpqi: Improve handling of multipath failover Improve multipath failovers by mapping firmware errors into I/O errors. In some rare instances, firmware does not return the proper error code for I/O errors caused by a multipath path failure. Map I/O errors returned by firmware into errors that help the multipath layer to detect the failure of a path. Reviewed-by: Gerry Morong Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Reviewed-by: Mike McGowen Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240711194704.982400-5-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index d8df7440bbe1..c116d542ac2b 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -3247,6 +3247,20 @@ static void pqi_process_raid_io_error(struct pqi_io_request *io_request) sense_data_length); } + if (pqi_cmd_priv(scmd)->this_residual && + !pqi_is_logical_device(scmd->device->hostdata) && + scsi_status == SAM_STAT_CHECK_CONDITION && + host_byte == DID_OK && + sense_data_length && + scsi_normalize_sense(error_info->data, sense_data_length, &sshdr) && + sshdr.sense_key == ILLEGAL_REQUEST && + sshdr.asc == 0x26 && + sshdr.ascq == 0x0) { + host_byte = DID_NO_CONNECT; + pqi_take_device_offline(scmd->device, "AIO"); + scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR, 0x3e, 0x1); + } + scmd->result = scsi_status; set_host_byte(scmd, host_byte); } @@ -6021,7 +6035,7 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm ctrl_info = shost_to_hba(shost); - if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) { + if (pqi_ctrl_offline(ctrl_info) || pqi_device_offline(device) || pqi_device_in_remove(device)) { set_host_byte(scmd, DID_NO_CONNECT); pqi_scsi_done(scmd); return 0; From 5b4ded3f35d5b2c077e4035b66af2d04668d7ee5 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Thu, 11 Jul 2024 14:47:04 -0500 Subject: [PATCH 31/86] scsi: smartpqi: Update driver version to 2.1.28-025 Update driver version to 2.1.28-025. Reviewed-by: Mike Tran Reviewed-by: Gerry Morong Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240711194704.982400-6-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index c116d542ac2b..b5396d722d52 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -33,11 +33,11 @@ #define BUILD_TIMESTAMP #endif -#define DRIVER_VERSION "2.1.26-030" +#define DRIVER_VERSION "2.1.28-025" #define DRIVER_MAJOR 2 #define DRIVER_MINOR 1 -#define DRIVER_RELEASE 26 -#define DRIVER_REVISION 30 +#define DRIVER_RELEASE 28 +#define DRIVER_REVISION 25 #define DRIVER_NAME "Microchip SmartPQI Driver (v" \ DRIVER_VERSION BUILD_TIMESTAMP ")" From 0c150b30d3d51a8c2e09fadd004a640fa12985c6 Mon Sep 17 00:00:00 2001 From: John Garry Date: Mon, 5 Aug 2024 11:33:14 +0000 Subject: [PATCH 32/86] scsi: sd: Don't check if a write for REQ_ATOMIC Flag REQ_ATOMIC can only be set for writes, so don't check if the operation is also a write in sd_setup_read_write_cmnd(). Fixes: bf4ae8f2e640 ("scsi: sd: Atomic write support") Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240805113315.1048591-2-john.g.garry@oracle.com Reviewed-by: Kanchan Joshi Signed-off-by: Martin K. Petersen --- drivers/scsi/sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index adeaa8ab9951..e90a2e4ab318 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1382,7 +1382,7 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd) if (protect && sdkp->protection_type == T10_PI_TYPE2_PROTECTION) { ret = sd_setup_rw32_cmnd(cmd, write, lba, nr_blocks, protect | fua, dld); - } else if (rq->cmd_flags & REQ_ATOMIC && write) { + } else if (rq->cmd_flags & REQ_ATOMIC) { ret = sd_setup_atomic_cmnd(cmd, lba, nr_blocks, sdkp->use_atomic_write_boundary, protect | fua); From ea6787c695ab7595d851c3506f67c157f3b593c0 Mon Sep 17 00:00:00 2001 From: John Garry Date: Mon, 5 Aug 2024 11:33:15 +0000 Subject: [PATCH 33/86] scsi: block: Don't check REQ_ATOMIC for reads We check in submit_bio_noacct() if flag REQ_ATOMIC is set for both read and write operations, and then validate the atomic operation if set. Flag REQ_ATOMIC can only be set for writes, so don't bother checking for reads. Fixes: 9da3d1e912f3 ("block: Add core atomic write support") Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240805113315.1048591-3-john.g.garry@oracle.com Reviewed-by: Kanchan Joshi Signed-off-by: Martin K. Petersen --- block/blk-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/blk-core.c b/block/blk-core.c index 1217c2cd66dd..bc5e8c5eaac9 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -799,6 +799,7 @@ void submit_bio_noacct(struct bio *bio) switch (bio_op(bio)) { case REQ_OP_READ: + break; case REQ_OP_WRITE: if (bio->bi_opf & REQ_ATOMIC) { status = blk_validate_atomic_write_op_size(q, bio); From fd9cb9615fca4fa322a43eeecbd71d4de1ba146a Mon Sep 17 00:00:00 2001 From: "Rob Herring (Arm)" Date: Thu, 8 Aug 2024 11:06:44 -0600 Subject: [PATCH 34/86] scsi: ufs: ufshcd-pltfrm: Use of_property_present() Use of_property_present() to test for property presence rather than of_find_property(). This is part of a larger effort to remove callers of of_find_property() and similar functions. of_find_property() leaks the DT struct property and data pointers which is a problem for dynamically allocated nodes which may be freed. Signed-off-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20240808170644.1436991-1-robh@kernel.org Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/ufs/host/ufshcd-pltfrm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index a3e69ecafd27..2e1eb898a27c 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -272,10 +272,10 @@ static int ufshcd_parse_operating_points(struct ufs_hba *hba) const char **clk_names; int cnt, i, ret; - if (!of_find_property(np, "operating-points-v2", NULL)) + if (!of_property_present(np, "operating-points-v2")) return 0; - if (of_find_property(np, "freq-table-hz", NULL)) { + if (of_property_present(np, "freq-table-hz")) { dev_err(dev, "%s: operating-points and freq-table-hz are incompatible\n", __func__); return -EINVAL; From eab0dce11dd91410204aae39d33124d9c16ab5f0 Mon Sep 17 00:00:00 2001 From: "Rob Herring (Arm)" Date: Thu, 8 Aug 2024 11:07:03 -0600 Subject: [PATCH 35/86] scsi: ufs: ufshcd-pltfrm: Use of_property_count_u32_elems() to get property length Replace of_get_property() with the type specific of_property_count_u32_elems() to get the property length. This is part of a larger effort to remove callers of of_get_property() and similar functions. of_get_property() leaks the DT property data pointer which is a problem for dynamically allocated nodes which may be freed. Signed-off-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20240808170704.1438658-1-robh@kernel.org Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/ufs/host/ufshcd-pltfrm.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index 2e1eb898a27c..0c9b303ccfa0 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -31,7 +31,6 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba) const char *name; u32 *clkfreq = NULL; struct ufs_clk_info *clki; - int len = 0; size_t sz = 0; if (!np) @@ -50,15 +49,12 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba) if (cnt <= 0) goto out; - if (!of_get_property(np, "freq-table-hz", &len)) { + sz = of_property_count_u32_elems(np, "freq-table-hz"); + if (sz <= 0) { dev_info(dev, "freq-table-hz property not specified\n"); goto out; } - if (len <= 0) - goto out; - - sz = len / sizeof(*clkfreq); if (sz != 2 * cnt) { dev_err(dev, "%s len mismatch\n", "freq-table-hz"); ret = -EINVAL; From ff30732014f5a54f0f97fb7ae9259da833c468d0 Mon Sep 17 00:00:00 2001 From: Pedro Falcato Date: Wed, 7 Aug 2024 10:57:09 +0100 Subject: [PATCH 36/86] scsi: snic: Avoid creating two slab caches with the same name In the spirit of [1], fix the copy-paste typo and use unique names for both caches. [1]: https://lore.kernel.org/all/20240807090746.2146479-1-pedro.falcato@gmail.com/ Signed-off-by: Pedro Falcato Link: https://lore.kernel.org/r/20240807095709.2200728-1-pedro.falcato@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/snic/snic_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c index cc824dcfe7da..abc78320c66d 100644 --- a/drivers/scsi/snic/snic_main.c +++ b/drivers/scsi/snic/snic_main.c @@ -873,7 +873,7 @@ snic_global_data_init(void) snic_glob->req_cache[SNIC_REQ_CACHE_MAX_SGL] = cachep; len = sizeof(struct snic_host_req); - cachep = kmem_cache_create("snic_req_maxsgl", len, SNIC_SG_DESC_ALIGN, + cachep = kmem_cache_create("snic_req_tm", len, SNIC_SG_DESC_ALIGN, SLAB_HWCACHE_ALIGN, NULL); if (!cachep) { SNIC_ERR("Failed to create snic tm req slab\n"); From 6dc7050d46713591f4d9e1030b92b964287037ec Mon Sep 17 00:00:00 2001 From: Ranjan Kumar Date: Thu, 8 Aug 2024 18:24:16 +0530 Subject: [PATCH 37/86] scsi: mpi3mr: Return complete ioc_status for ioctl commands The driver masked the loginfo available bit in the iocstatus before passing it to the applications, causing a mismatch in error messages between Linux and other operating systems. Modify driver to return unmasked (complete) iocstatus, including the loginfo available bit, for the MPI commands sent through the ioctl interface. Co-developed-by: Sathya Prakash Signed-off-by: Sathya Prakash Signed-off-by: Ranjan Kumar Link: https://lore.kernel.org/r/20240808125418.8832-2-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi3mr_fw.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index c196dc14ad20..169850393580 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -345,6 +345,7 @@ static void mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc *mrioc, { u16 reply_desc_type, host_tag = 0; u16 ioc_status = MPI3_IOCSTATUS_SUCCESS; + u16 masked_ioc_status = MPI3_IOCSTATUS_SUCCESS; u32 ioc_loginfo = 0, sense_count = 0; struct mpi3_status_reply_descriptor *status_desc; struct mpi3_address_reply_descriptor *addr_desc; @@ -366,8 +367,8 @@ static void mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc *mrioc, if (ioc_status & MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) ioc_loginfo = le32_to_cpu(status_desc->ioc_log_info); - ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; - mpi3mr_reply_trigger(mrioc, ioc_status, ioc_loginfo); + masked_ioc_status = ioc_status & MPI3_IOCSTATUS_STATUS_MASK; + mpi3mr_reply_trigger(mrioc, masked_ioc_status, ioc_loginfo); break; case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_ADDRESS_REPLY: addr_desc = (struct mpi3_address_reply_descriptor *)reply_desc; @@ -380,7 +381,7 @@ static void mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc *mrioc, if (ioc_status & MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) ioc_loginfo = le32_to_cpu(def_reply->ioc_log_info); - ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; + masked_ioc_status = ioc_status & MPI3_IOCSTATUS_STATUS_MASK; if (def_reply->function == MPI3_FUNCTION_SCSI_IO) { scsi_reply = (struct mpi3_scsi_io_reply *)def_reply; sense_buf = mpi3mr_get_sensebuf_virt_addr(mrioc, @@ -393,7 +394,7 @@ static void mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc *mrioc, sshdr.asc, sshdr.ascq); } } - mpi3mr_reply_trigger(mrioc, ioc_status, ioc_loginfo); + mpi3mr_reply_trigger(mrioc, masked_ioc_status, ioc_loginfo); break; case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS: success_desc = (struct mpi3_success_reply_descriptor *)reply_desc; @@ -408,7 +409,10 @@ static void mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc *mrioc, if (cmdptr->state & MPI3MR_CMD_PENDING) { cmdptr->state |= MPI3MR_CMD_COMPLETE; cmdptr->ioc_loginfo = ioc_loginfo; - cmdptr->ioc_status = ioc_status; + if (host_tag == MPI3MR_HOSTTAG_BSG_CMDS) + cmdptr->ioc_status = ioc_status; + else + cmdptr->ioc_status = masked_ioc_status; cmdptr->state &= ~MPI3MR_CMD_PENDING; if (def_reply) { cmdptr->state |= MPI3MR_CMD_REPLY_VALID; From 199510e33dea357e48389241a28b8d43762394e8 Mon Sep 17 00:00:00 2001 From: Ranjan Kumar Date: Thu, 8 Aug 2024 18:24:17 +0530 Subject: [PATCH 38/86] scsi: mpi3mr: Update consumer index of reply queues after every 100 replies Instead of updating the ConsumerIndex of the Admin and Operational ReplyQueues after processing all replies in the queue, the index will now be periodically updated after processing every 100 replies. Co-developed-by: Sathya Prakash Signed-off-by: Sathya Prakash Signed-off-by: Ranjan Kumar Link: https://lore.kernel.org/r/20240808125418.8832-3-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi3mr.h | 1 + drivers/scsi/mpi3mr/mpi3mr_fw.c | 18 ++++++++++++++++-- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index dc2cdd5f0311..cbb6e4b2d447 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -213,6 +213,7 @@ extern atomic64_t event_counter; #define MPI3MR_HDB_QUERY_ELEMENT_TRIGGER_FORMAT_INDEX 0 #define MPI3MR_HDB_QUERY_ELEMENT_TRIGGER_FORMAT_DATA 1 +#define MPI3MR_THRESHOLD_REPLY_COUNT 100 /* SGE Flag definition */ #define MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST \ diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 169850393580..6eb5bcd8e757 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -443,6 +443,7 @@ int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) u32 admin_reply_ci = mrioc->admin_reply_ci; u32 num_admin_replies = 0; u64 reply_dma = 0; + u16 threshold_comps = 0; struct mpi3_default_reply_descriptor *reply_desc; if (!atomic_add_unless(&mrioc->admin_reply_q_in_use, 1, 1)) @@ -466,6 +467,7 @@ int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) if (reply_dma) mpi3mr_repost_reply_buf(mrioc, reply_dma); num_admin_replies++; + threshold_comps++; if (++admin_reply_ci == mrioc->num_admin_replies) { admin_reply_ci = 0; exp_phase ^= 1; @@ -476,6 +478,11 @@ int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) if ((le16_to_cpu(reply_desc->reply_flags) & MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase) break; + if (threshold_comps == MPI3MR_THRESHOLD_REPLY_COUNT) { + writel(admin_reply_ci, + &mrioc->sysif_regs->admin_reply_queue_ci); + threshold_comps = 0; + } } while (1); writel(admin_reply_ci, &mrioc->sysif_regs->admin_reply_queue_ci); @@ -529,7 +536,7 @@ int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc, u32 num_op_reply = 0; u64 reply_dma = 0; struct mpi3_default_reply_descriptor *reply_desc; - u16 req_q_idx = 0, reply_qidx; + u16 req_q_idx = 0, reply_qidx, threshold_comps = 0; reply_qidx = op_reply_q->qid - 1; @@ -560,6 +567,7 @@ int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc, if (reply_dma) mpi3mr_repost_reply_buf(mrioc, reply_dma); num_op_reply++; + threshold_comps++; if (++reply_ci == op_reply_q->num_replies) { reply_ci = 0; @@ -581,13 +589,19 @@ int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc, break; } #endif + if (threshold_comps == MPI3MR_THRESHOLD_REPLY_COUNT) { + writel(reply_ci, + &mrioc->sysif_regs->oper_queue_indexes[reply_qidx].consumer_index); + atomic_sub(threshold_comps, &op_reply_q->pend_ios); + threshold_comps = 0; + } } while (1); writel(reply_ci, &mrioc->sysif_regs->oper_queue_indexes[reply_qidx].consumer_index); op_reply_q->ci = reply_ci; op_reply_q->ephase = exp_phase; - + atomic_sub(threshold_comps, &op_reply_q->pend_ios); atomic_dec(&op_reply_q->in_use); return num_op_reply; } From f856e57d6138a2dcbe4493c7333f0efdb535c19c Mon Sep 17 00:00:00 2001 From: Ranjan Kumar Date: Thu, 8 Aug 2024 18:24:18 +0530 Subject: [PATCH 39/86] scsi: mpi3mr: Driver version update to 8.10.0.5.50 Update driver version to 8.10.0.5.50. Signed-off-by: Ranjan Kumar Link: https://lore.kernel.org/r/20240808125418.8832-4-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi3mr.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index cbb6e4b2d447..875bad7538f2 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -57,8 +57,8 @@ extern struct list_head mrioc_list; extern int prot_mask; extern atomic64_t event_counter; -#define MPI3MR_DRIVER_VERSION "8.9.1.0.51" -#define MPI3MR_DRIVER_RELDATE "29-May-2024" +#define MPI3MR_DRIVER_VERSION "8.10.0.5.50" +#define MPI3MR_DRIVER_RELDATE "08-Aug-2024" #define MPI3MR_DRIVER_NAME "mpi3mr" #define MPI3MR_DRIVER_LICENSE "GPL" From 5ec4f820cb9766e4583df947150a6febce8da794 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 40/86] scsi: mac_scsi: Revise printk(KERN_DEBUG ...) messages After a bus fault, capture and log the chip registers immediately, if the NDEBUG_PSEUDO_DMA macro is defined. Remove some printk(KERN_DEBUG ...) messages that aren't needed any more. Don't skip the debug message when bytes == 0. Show all of the byte counters in the debug messages. Cc: stable@vger.kernel.org # 5.15+ Tested-by: Stan Johnson Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/7573c79f4e488fc00af2b8a191e257ca945e0409.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/mac_scsi.c | 42 +++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c index 53ee8f84d094..e67b038a3577 100644 --- a/drivers/scsi/mac_scsi.c +++ b/drivers/scsi/mac_scsi.c @@ -286,13 +286,14 @@ static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG, BASR_DRQ | BASR_PHASE_MATCH, BASR_DRQ | BASR_PHASE_MATCH, 0)) { - int bytes; + int bytes, chunk_bytes; if (macintosh_config->ident == MAC_MODEL_IIFX) write_ctrl_reg(hostdata, CTRL_HANDSHAKE_MODE | CTRL_INTERRUPTS_ENABLE); - bytes = mac_pdma_recv(s, d, min(hostdata->pdma_residual, 512)); + chunk_bytes = min(hostdata->pdma_residual, 512); + bytes = mac_pdma_recv(s, d, chunk_bytes); if (bytes > 0) { d += bytes; @@ -302,23 +303,23 @@ static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, if (hostdata->pdma_residual == 0) goto out; - if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ, - BUS_AND_STATUS_REG, BASR_ACK, - BASR_ACK, 0) < 0) - scmd_printk(KERN_DEBUG, hostdata->connected, - "%s: !REQ and !ACK\n", __func__); if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) goto out; if (bytes == 0) udelay(MAC_PDMA_DELAY); - if (bytes >= 0) + if (bytes > 0) continue; - dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host, - "%s: bus error (%d/%d)\n", __func__, d - dst, len); NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host); + dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host, + "%s: bus error [%d/%d] (%d/%d)\n", + __func__, d - dst, len, bytes, chunk_bytes); + + if (bytes == 0) + continue; + result = -1; goto out; } @@ -345,13 +346,14 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG, BASR_DRQ | BASR_PHASE_MATCH, BASR_DRQ | BASR_PHASE_MATCH, 0)) { - int bytes; + int bytes, chunk_bytes; if (macintosh_config->ident == MAC_MODEL_IIFX) write_ctrl_reg(hostdata, CTRL_HANDSHAKE_MODE | CTRL_INTERRUPTS_ENABLE); - bytes = mac_pdma_send(s, d, min(hostdata->pdma_residual, 512)); + chunk_bytes = min(hostdata->pdma_residual, 512); + bytes = mac_pdma_send(s, d, chunk_bytes); if (bytes > 0) { s += bytes; @@ -370,23 +372,23 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, goto out; } - if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ, - BUS_AND_STATUS_REG, BASR_ACK, - BASR_ACK, 0) < 0) - scmd_printk(KERN_DEBUG, hostdata->connected, - "%s: !REQ and !ACK\n", __func__); if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) goto out; if (bytes == 0) udelay(MAC_PDMA_DELAY); - if (bytes >= 0) + if (bytes > 0) continue; - dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host, - "%s: bus error (%d/%d)\n", __func__, s - src, len); NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host); + dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host, + "%s: bus error [%d/%d] (%d/%d)\n", + __func__, s - src, len, bytes, chunk_bytes); + + if (bytes == 0) + continue; + result = -1; goto out; } From 5545c3165cbc98615fe65a44f41167cbb557e410 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 41/86] scsi: mac_scsi: Refactor polling loop Before the error handling can be revised, some preparation is needed. Refactor the polling loop with a new function, macscsi_wait_for_drq(). This function will gain more call sites in the next patch. Cc: stable@vger.kernel.org # 5.15+ Tested-by: Stan Johnson Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/6a5ffabb4290c0d138c6d285fda8fa3902e926f0.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/mac_scsi.c | 80 +++++++++++++++++++++-------------------- 1 file changed, 42 insertions(+), 38 deletions(-) diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c index e67b038a3577..99a2008f8752 100644 --- a/drivers/scsi/mac_scsi.c +++ b/drivers/scsi/mac_scsi.c @@ -208,8 +208,6 @@ __setup("mac5380=", mac_scsi_setup); ".previous \n" \ : "+a" (addr), "+r" (n), "+r" (result) : "a" (io)) -#define MAC_PDMA_DELAY 32 - static inline int mac_pdma_recv(void __iomem *io, unsigned char *start, int n) { unsigned char *addr = start; @@ -274,6 +272,36 @@ static inline void write_ctrl_reg(struct NCR5380_hostdata *hostdata, u32 value) out_be32(hostdata->io + (CTRL_REG << 4), value); } +static inline int macscsi_wait_for_drq(struct NCR5380_hostdata *hostdata) +{ + unsigned int n = 1; /* effectively multiplies NCR5380_REG_POLL_TIME */ + unsigned char basr; + +again: + basr = NCR5380_read(BUS_AND_STATUS_REG); + + if (!(basr & BASR_PHASE_MATCH)) + return 1; + + if (basr & BASR_IRQ) + return -1; + + if (basr & BASR_DRQ) + return 0; + + if (n-- == 0) { + NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host); + dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host, + "%s: DRQ timeout\n", __func__); + return -1; + } + + NCR5380_poll_politely2(hostdata, + BUS_AND_STATUS_REG, BASR_DRQ, BASR_DRQ, + BUS_AND_STATUS_REG, BASR_PHASE_MATCH, 0, 0); + goto again; +} + static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, unsigned char *dst, int len) { @@ -283,9 +311,7 @@ static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, hostdata->pdma_residual = len; - while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG, - BASR_DRQ | BASR_PHASE_MATCH, - BASR_DRQ | BASR_PHASE_MATCH, 0)) { + while (macscsi_wait_for_drq(hostdata) == 0) { int bytes, chunk_bytes; if (macintosh_config->ident == MAC_MODEL_IIFX) @@ -295,19 +321,16 @@ static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, chunk_bytes = min(hostdata->pdma_residual, 512); bytes = mac_pdma_recv(s, d, chunk_bytes); + if (macintosh_config->ident == MAC_MODEL_IIFX) + write_ctrl_reg(hostdata, CTRL_INTERRUPTS_ENABLE); + if (bytes > 0) { d += bytes; hostdata->pdma_residual -= bytes; } if (hostdata->pdma_residual == 0) - goto out; - - if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) - goto out; - - if (bytes == 0) - udelay(MAC_PDMA_DELAY); + break; if (bytes > 0) continue; @@ -321,16 +344,9 @@ static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, continue; result = -1; - goto out; + break; } - scmd_printk(KERN_ERR, hostdata->connected, - "%s: phase mismatch or !DRQ\n", __func__); - NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host); - result = -1; -out: - if (macintosh_config->ident == MAC_MODEL_IIFX) - write_ctrl_reg(hostdata, CTRL_INTERRUPTS_ENABLE); return result; } @@ -343,9 +359,7 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, hostdata->pdma_residual = len; - while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG, - BASR_DRQ | BASR_PHASE_MATCH, - BASR_DRQ | BASR_PHASE_MATCH, 0)) { + while (macscsi_wait_for_drq(hostdata) == 0) { int bytes, chunk_bytes; if (macintosh_config->ident == MAC_MODEL_IIFX) @@ -355,6 +369,9 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, chunk_bytes = min(hostdata->pdma_residual, 512); bytes = mac_pdma_send(s, d, chunk_bytes); + if (macintosh_config->ident == MAC_MODEL_IIFX) + write_ctrl_reg(hostdata, CTRL_INTERRUPTS_ENABLE); + if (bytes > 0) { s += bytes; hostdata->pdma_residual -= bytes; @@ -369,15 +386,9 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, "%s: Last Byte Sent timeout\n", __func__); result = -1; } - goto out; + break; } - if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) - goto out; - - if (bytes == 0) - udelay(MAC_PDMA_DELAY); - if (bytes > 0) continue; @@ -390,16 +401,9 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, continue; result = -1; - goto out; + break; } - scmd_printk(KERN_ERR, hostdata->connected, - "%s: phase mismatch or !DRQ\n", __func__); - NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host); - result = -1; -out: - if (macintosh_config->ident == MAC_MODEL_IIFX) - write_ctrl_reg(hostdata, CTRL_INTERRUPTS_ENABLE); return result; } From 5551bc30e4a69ad86d0d008e2f56cd59b6583476 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 42/86] scsi: mac_scsi: Disallow bus errors during PDMA send SD cards can produce write latency spikes on the order of a hundred milliseconds. If the target firmware does not hide that latency during DATA IN and OUT phases it can cause the PDMA circuitry to raise a processor bus fault which in turn leads to an unreliable byte count and a DMA overrun. The Last Byte Sent flag is used to detect the overrun but this mechanism is unreliable on some systems. Instead, set a DID_ERROR result whenever there is a bus fault during a PDMA send, unless the cause was a phase mismatch. Cc: stable@vger.kernel.org # 5.15+ Reported-and-tested-by: Stan Johnson Fixes: 7c1f3e3447a1 ("scsi: mac_scsi: Treat Last Byte Sent time-out as failure") Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/cc38df687ace2c4ffc375a683b2502fc476b600d.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/mac_scsi.c | 44 ++++++++++++++++++----------------------- 1 file changed, 19 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c index 99a2008f8752..3958f7dc679f 100644 --- a/drivers/scsi/mac_scsi.c +++ b/drivers/scsi/mac_scsi.c @@ -102,11 +102,15 @@ __setup("mac5380=", mac_scsi_setup); * Linux SCSI drivers lack knowledge of the timing behaviour of SCSI targets * so bus errors are unavoidable. * - * If a MOVE.B instruction faults, we assume that zero bytes were transferred - * and simply retry. That assumption probably depends on target behaviour but - * seems to hold up okay. The NOP provides synchronization: without it the - * fault can sometimes occur after the program counter has moved past the - * offending instruction. Post-increment addressing can't be used. + * If a MOVE.B instruction faults during a receive operation, we assume the + * target sent nothing and try again. That assumption probably depends on + * target firmware but it seems to hold up okay. If a fault happens during a + * send operation, the target may or may not have seen /ACK and got the byte. + * It's uncertain so the whole SCSI command gets retried. + * + * The NOP is needed for synchronization because the fault address in the + * exception stack frame may or may not be the instruction that actually + * caused the bus error. Post-increment addressing can't be used. */ #define MOVE_BYTE(operands) \ @@ -243,22 +247,21 @@ static inline int mac_pdma_send(unsigned char *start, void __iomem *io, int n) if (n >= 1) { MOVE_BYTE("%0@,%3@"); if (result) - goto out; + return -1; } if (n >= 1 && ((unsigned long)addr & 1)) { MOVE_BYTE("%0@,%3@"); if (result) - goto out; + return -2; } while (n >= 32) MOVE_16_WORDS("%0@+,%3@"); while (n >= 2) MOVE_WORD("%0@+,%3@"); if (result) - return start - addr; /* Negated to indicate uncertain length */ + return start - addr - 1; /* Negated to indicate uncertain length */ if (n == 1) MOVE_BYTE("%0@,%3@"); -out: return addr - start; } @@ -307,7 +310,6 @@ static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, { u8 __iomem *s = hostdata->pdma_io + (INPUT_DATA_REG << 4); unsigned char *d = dst; - int result = 0; hostdata->pdma_residual = len; @@ -343,11 +345,12 @@ static inline int macscsi_pread(struct NCR5380_hostdata *hostdata, if (bytes == 0) continue; - result = -1; + if (macscsi_wait_for_drq(hostdata) <= 0) + set_host_byte(hostdata->connected, DID_ERROR); break; } - return result; + return 0; } static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, @@ -355,7 +358,6 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, { unsigned char *s = src; u8 __iomem *d = hostdata->pdma_io + (OUTPUT_DATA_REG << 4); - int result = 0; hostdata->pdma_residual = len; @@ -377,17 +379,8 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, hostdata->pdma_residual -= bytes; } - if (hostdata->pdma_residual == 0) { - if (NCR5380_poll_politely(hostdata, TARGET_COMMAND_REG, - TCR_LAST_BYTE_SENT, - TCR_LAST_BYTE_SENT, - 0) < 0) { - scmd_printk(KERN_ERR, hostdata->connected, - "%s: Last Byte Sent timeout\n", __func__); - result = -1; - } + if (hostdata->pdma_residual == 0) break; - } if (bytes > 0) continue; @@ -400,11 +393,12 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata, if (bytes == 0) continue; - result = -1; + if (macscsi_wait_for_drq(hostdata) <= 0) + set_host_byte(hostdata->connected, DID_ERROR); break; } - return result; + return 0; } static int macscsi_dma_xfer_len(struct NCR5380_hostdata *hostdata, From 5768718da9417331803fc4bc090544c2a93b88dc Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 43/86] scsi: NCR5380: Check for phase match during PDMA fixup It's not an error for a target to change the bus phase during a transfer. Unfortunately, the FLAG_DMA_FIXUP workaround does not allow for that -- a phase change produces a DRQ timeout error and the device borken flag will be set. Check the phase match bit during FLAG_DMA_FIXUP processing. Don't forget to decrement the command residual. While we are here, change shost_printk() into scmd_printk() for better consistency with other DMA error messages. Tested-by: Stan Johnson Fixes: 55181be8ced1 ("ncr5380: Replace redundant flags with FLAG_NO_DMA_FIXUP") Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/99dc7d1f4c825621b5b120963a69f6cd3e9ca659.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 78 +++++++++++++++++++++--------------------- 1 file changed, 39 insertions(+), 39 deletions(-) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index cea3a79d538e..00e245173320 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -1485,6 +1485,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char **data) { struct NCR5380_hostdata *hostdata = shost_priv(instance); + struct NCR5380_cmd *ncmd = NCR5380_to_ncmd(hostdata->connected); int c = *count; unsigned char p = *phase; unsigned char *d = *data; @@ -1496,7 +1497,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, return -1; } - NCR5380_to_ncmd(hostdata->connected)->phase = p; + ncmd->phase = p; if (p & SR_IO) { if (hostdata->read_overruns) @@ -1608,45 +1609,44 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, * request. */ - if (hostdata->flags & FLAG_DMA_FIXUP) { - if (p & SR_IO) { - /* - * The workaround was to transfer fewer bytes than we - * intended to with the pseudo-DMA read function, wait for - * the chip to latch the last byte, read it, and then disable - * pseudo-DMA mode. - * - * After REQ is asserted, the NCR5380 asserts DRQ and ACK. - * REQ is deasserted when ACK is asserted, and not reasserted - * until ACK goes false. Since the NCR5380 won't lower ACK - * until DACK is asserted, which won't happen unless we twiddle - * the DMA port or we take the NCR5380 out of DMA mode, we - * can guarantee that we won't handshake another extra - * byte. - */ - - if (NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG, - BASR_DRQ, BASR_DRQ, 0) < 0) { - result = -1; - shost_printk(KERN_ERR, instance, "PDMA read: DRQ timeout\n"); - } - if (NCR5380_poll_politely(hostdata, STATUS_REG, - SR_REQ, 0, 0) < 0) { - result = -1; - shost_printk(KERN_ERR, instance, "PDMA read: !REQ timeout\n"); - } - d[*count - 1] = NCR5380_read(INPUT_DATA_REG); - } else { - /* - * Wait for the last byte to be sent. If REQ is being asserted for - * the byte we're interested, we'll ACK it and it will go false. - */ - if (NCR5380_poll_politely2(hostdata, - BUS_AND_STATUS_REG, BASR_DRQ, BASR_DRQ, - BUS_AND_STATUS_REG, BASR_PHASE_MATCH, 0, 0) < 0) { - result = -1; - shost_printk(KERN_ERR, instance, "PDMA write: DRQ and phase timeout\n"); + if ((hostdata->flags & FLAG_DMA_FIXUP) && + (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) { + /* + * The workaround was to transfer fewer bytes than we + * intended to with the pseudo-DMA receive function, wait for + * the chip to latch the last byte, read it, and then disable + * DMA mode. + * + * After REQ is asserted, the NCR5380 asserts DRQ and ACK. + * REQ is deasserted when ACK is asserted, and not reasserted + * until ACK goes false. Since the NCR5380 won't lower ACK + * until DACK is asserted, which won't happen unless we twiddle + * the DMA port or we take the NCR5380 out of DMA mode, we + * can guarantee that we won't handshake another extra + * byte. + * + * If sending, wait for the last byte to be sent. If REQ is + * being asserted for the byte we're interested, we'll ACK it + * and it will go false. + */ + if (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG, + BASR_DRQ, BASR_DRQ, 0)) { + if ((p & SR_IO) && + (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) { + if (!NCR5380_poll_politely(hostdata, STATUS_REG, + SR_REQ, 0, 0)) { + d[c] = NCR5380_read(INPUT_DATA_REG); + --ncmd->this_residual; + } else { + result = -1; + scmd_printk(KERN_ERR, hostdata->connected, + "PDMA fixup: !REQ timeout\n"); + } } + } else if (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH) { + result = -1; + scmd_printk(KERN_ERR, hostdata->connected, + "PDMA fixup: DRQ timeout\n"); } } From 2ac6d29716cd7a3a013b34fad6ba6e88767e28c9 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 44/86] scsi: mac_scsi: Enable scatter/gather by default Now that FLAG_DMA_FIXUP has itself been fixed up, it can be used to enable scatter/gather. Increase the default value for sg_tablesize to SG_ALL for those systems which are compatible with FLAG_DMA_FIXUP. Tested-by: Stan Johnson Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/f155ba5ce93055cbc6ac6d4026673f40f826edb8.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/mac_scsi.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c index 3958f7dc679f..f225bb20aa22 100644 --- a/drivers/scsi/mac_scsi.c +++ b/drivers/scsi/mac_scsi.c @@ -432,7 +432,7 @@ static struct scsi_host_template mac_scsi_template = { .eh_host_reset_handler = macscsi_host_reset, .can_queue = 16, .this_id = 7, - .sg_tablesize = 1, + .sg_tablesize = SG_ALL, .cmd_per_lun = 2, .dma_boundary = PAGE_SIZE - 1, .cmd_size = sizeof(struct NCR5380_cmd), @@ -470,6 +470,9 @@ static int __init mac_scsi_probe(struct platform_device *pdev) if (setup_hostid >= 0) mac_scsi_template.this_id = setup_hostid & 7; + if (macintosh_config->ident == MAC_MODEL_IIFX) + mac_scsi_template.sg_tablesize = 1; + instance = scsi_host_alloc(&mac_scsi_template, sizeof(struct NCR5380_hostdata)); if (!instance) @@ -491,6 +494,9 @@ static int __init mac_scsi_probe(struct platform_device *pdev) host_flags |= setup_toshiba_delay > 0 ? FLAG_TOSHIBA_DELAY : 0; + if (instance->sg_tablesize > 1) + host_flags |= FLAG_DMA_FIXUP; + error = NCR5380_init(instance, host_flags | FLAG_LATE_DMA_SETUP); if (error) goto fail_init; From 1c71065df2df693d208dd32758171c1dece66341 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 45/86] scsi: NCR5380: Initialize buffer for MSG IN and STATUS transfers Following an incomplete transfer in MSG IN phase, the driver would not notice the problem and would make use of invalid data. Initialize 'tmp' appropriately and bail out if no message was received. For STATUS phase, preserve the existing status code unless a new value was transferred. Tested-by: Stan Johnson Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/52e02a8812ae1a2d810d7f9f7fd800c3ccc320c4.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 00e245173320..4fcb73b727aa 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -1807,8 +1807,11 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) return; case PHASE_MSGIN: len = 1; + tmp = 0xff; data = &tmp; NCR5380_transfer_pio(instance, &phase, &len, &data, 0); + if (tmp == 0xff) + break; ncmd->message = tmp; switch (tmp) { @@ -1996,6 +1999,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) break; case PHASE_STATIN: len = 1; + tmp = ncmd->status; data = &tmp; NCR5380_transfer_pio(instance, &phase, &len, &data, 0); ncmd->status = tmp; From 086c4802cf99ab7275cd4ec6651f696f2cc61bfa Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 46/86] scsi: NCR5380: Handle BSY signal loss during information transfer phases Improve robustness by checking for a lost BSY signal during the information transfer loop. The status register is being polled anyway, so a BSY check costs nothing. BSY signal loss could be caused by a target error or a kicked plug etc. A bus reset is another possibility but that is already handled and hostdata->connected would be NULL. Tested-by: Stan Johnson Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/d253dddaf4d9bc17b8ee02ea2b731d92f25b16f1.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 4fcb73b727aa..8a9df2ab9569 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -1244,8 +1244,6 @@ static bool NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd) * is in same phase. * * Also, *phase, *count, *data are modified in place. - * - * XXX Note : handling for bus free may be useful. */ /* @@ -1277,8 +1275,8 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance, * valid */ - if (NCR5380_poll_politely(hostdata, STATUS_REG, SR_REQ, SR_REQ, - HZ * can_sleep) < 0) + if (NCR5380_poll_politely(hostdata, STATUS_REG, SR_REQ | SR_BSY, + SR_REQ | SR_BSY, HZ * can_sleep) < 0) break; dsprintk(NDEBUG_HANDSHAKE, instance, "REQ asserted\n"); @@ -1666,9 +1664,6 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, * Side effects : SCSI things happen, the disconnected queue will be * modified if a command disconnects, *instance->connected will * change. - * - * XXX Note : we need to watch for bus free or a reset condition here - * to recover from an unexpected bus free condition. */ static void NCR5380_information_transfer(struct Scsi_Host *instance) @@ -2009,9 +2004,20 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) NCR5380_dprint(NDEBUG_ANY, instance); } /* switch(phase) */ } else { + int err; + spin_unlock_irq(&hostdata->lock); - NCR5380_poll_politely(hostdata, STATUS_REG, SR_REQ, SR_REQ, HZ); + err = NCR5380_poll_politely(hostdata, STATUS_REG, + SR_REQ, SR_REQ, HZ); spin_lock_irq(&hostdata->lock); + + if (err < 0 && hostdata->connected && + !(NCR5380_read(STATUS_REG) & SR_BSY)) { + scmd_printk(KERN_ERR, hostdata->connected, + "BSY signal lost\n"); + do_reset(instance); + bus_reset_cleanup(instance); + } } } } From 476f8c82e2187369be982ef1b3739307d67c10d3 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 47/86] scsi: NCR5380: Drop redundant member from struct NCR5380_cmd The 'message' member is stored but never loaded so just remove it. Tested-by: Stan Johnson Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/4dc903a95a814d0c9b09656f3651a1bd798fcbbb.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 2 -- drivers/scsi/NCR5380.h | 1 - 2 files changed, 3 deletions(-) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 8a9df2ab9569..a47a825e7220 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -157,7 +157,6 @@ static inline void initialize_SCp(struct scsi_cmnd *cmd) } ncmd->status = 0; - ncmd->message = 0; } static inline void advance_sg_buffer(struct NCR5380_cmd *ncmd) @@ -1807,7 +1806,6 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) NCR5380_transfer_pio(instance, &phase, &len, &data, 0); if (tmp == 0xff) break; - ncmd->message = tmp; switch (tmp) { case ABORT: diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h index 8dc2be4212dc..84db14b036e4 100644 --- a/drivers/scsi/NCR5380.h +++ b/drivers/scsi/NCR5380.h @@ -231,7 +231,6 @@ struct NCR5380_cmd { int this_residual; struct scatterlist *buffer; int status; - int message; int phase; struct list_head list; }; From 8663cadefd15bafee457cb23bb561704383fb1ce Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 48/86] scsi: NCR5380: Remove redundant result calculation from NCR5380_transfer_pio() NCR5380_transfer_pio() returns an ambiguous value which is ignored by callers. Make it void and remove the redundant calculation. Adopt kernel-doc format for the updated description. Tested-by: Stan Johnson Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/c07a52d0d7610b4b9969d6dd4fc9a62458fe15de.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 34 +++++++++++----------------------- drivers/scsi/NCR5380.h | 5 +++-- 2 files changed, 14 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index a47a825e7220..931b2581a33d 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -1227,22 +1227,15 @@ static bool NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd) return ret; } -/* - * Function : int NCR5380_transfer_pio (struct Scsi_Host *instance, - * unsigned char *phase, int *count, unsigned char **data) +/** + * NCR5380_transfer_pio() - transfers data in given phase using polled I/O + * @instance: instance of driver + * @phase: pointer to what phase is expected + * @count: pointer to number of bytes to transfer + * @data: pointer to data pointer + * @can_sleep: 1 or 0 when sleeping is permitted or not, respectively * - * Purpose : transfers data in given phase using polled I/O - * - * Inputs : instance - instance of driver, *phase - pointer to - * what phase is expected, *count - pointer to number of - * bytes to transfer, **data - pointer to data pointer, - * can_sleep - 1 or 0 when sleeping is permitted or not, respectively. - * - * Returns : -1 when different phase is entered without transferring - * maximum number of bytes, 0 if all bytes are transferred or exit - * is in same phase. - * - * Also, *phase, *count, *data are modified in place. + * Returns: void. *phase, *count, *data are modified in place. */ /* @@ -1251,9 +1244,9 @@ static bool NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd) * counts, we will always do a pseudo DMA or DMA transfer. */ -static int NCR5380_transfer_pio(struct Scsi_Host *instance, - unsigned char *phase, int *count, - unsigned char **data, unsigned int can_sleep) +static void NCR5380_transfer_pio(struct Scsi_Host *instance, + unsigned char *phase, int *count, + unsigned char **data, unsigned int can_sleep) { struct NCR5380_hostdata *hostdata = shost_priv(instance); unsigned char p = *phase, tmp; @@ -1358,11 +1351,6 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance, *phase = tmp & PHASE_MASK; else *phase = PHASE_UNKNOWN; - - if (!c || (*phase == p)) - return 0; - else - return -1; } /** diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h index 84db14b036e4..64a1c6ce5e1b 100644 --- a/drivers/scsi/NCR5380.h +++ b/drivers/scsi/NCR5380.h @@ -285,8 +285,9 @@ static const char *NCR5380_info(struct Scsi_Host *instance); static void NCR5380_reselect(struct Scsi_Host *instance); static bool NCR5380_select(struct Scsi_Host *, struct scsi_cmnd *); static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data); -static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data, - unsigned int can_sleep); +static void NCR5380_transfer_pio(struct Scsi_Host *instance, + unsigned char *phase, int *count, + unsigned char **data, unsigned int can_sleep); static int NCR5380_poll_politely2(struct NCR5380_hostdata *, unsigned int, u8, u8, unsigned int, u8, u8, unsigned long); From c331df3d4a8db8a8d285b31895923cefabe77ecc Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 49/86] scsi: NCR5380: Remove obsolete comment This comment should have been removed in commit e7734ef14ead ("scsi: NCR5380: Remove context check") when the irqs_disabled() conditional was removed. Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/c54aff198b5a60be8ecfd50df0a9a77850730501.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 931b2581a33d..94501773506b 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -198,7 +198,6 @@ static inline void set_resid_from_SCp(struct scsi_cmnd *cmd) * Polls the chip in a reasonably efficient manner waiting for an * event to occur. After a short quick poll we begin to yield the CPU * (if possible). In irq contexts the time-out is arbitrarily limited. - * Callers may hold locks as long as they are held in irq mode. * * Returns 0 if either or both event(s) occurred otherwise -ETIMEDOUT. */ From a8ebca904f8e0e02afcff961f342734d36b69c69 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 7 Aug 2024 13:36:28 +1000 Subject: [PATCH 50/86] scsi: NCR5380: Clean up indentation Tidy up a few indentation annoyances. No functional change. Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/8541ea096fde9f8716b79e4f0707aed916a8c58d.1723001788.git.fthain@linux-m68k.org Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 92 +++++++++++++++++++++------------------- drivers/scsi/NCR5380.h | 14 +++--- drivers/scsi/sun3_scsi.c | 2 +- 3 files changed, 56 insertions(+), 52 deletions(-) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 94501773506b..0e10502660de 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -1318,17 +1318,19 @@ static void NCR5380_transfer_pio(struct Scsi_Host *instance, dsprintk(NDEBUG_HANDSHAKE, instance, "REQ negated, handshake complete\n"); -/* - * We have several special cases to consider during REQ/ACK handshaking : - * 1. We were in MSGOUT phase, and we are on the last byte of the - * message. ATN must be dropped as ACK is dropped. - * - * 2. We are in a MSGIN phase, and we are on the last byte of the - * message. We must exit with ACK asserted, so that the calling - * code may raise ATN before dropping ACK to reject the message. - * - * 3. ACK and ATN are clear and the target may proceed as normal. - */ + /* + * We have several special cases to consider during REQ/ACK + * handshaking: + * + * 1. We were in MSGOUT phase, and we are on the last byte of + * the message. ATN must be dropped as ACK is dropped. + * + * 2. We are in MSGIN phase, and we are on the last byte of the + * message. We must exit with ACK asserted, so that the calling + * code may raise ATN before dropping ACK to reject the message. + * + * 3. ACK and ATN are clear & the target may proceed as normal. + */ if (!(p == PHASE_MSGIN && c == 1)) { if (p == PHASE_MSGOUT && c > 1) NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN); @@ -1559,39 +1561,41 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, /* The result is zero iff pseudo DMA send/receive was completed. */ hostdata->dma_len = c; -/* - * A note regarding the DMA errata workarounds for early NMOS silicon. - * - * For DMA sends, we want to wait until the last byte has been - * transferred out over the bus before we turn off DMA mode. Alas, there - * seems to be no terribly good way of doing this on a 5380 under all - * conditions. For non-scatter-gather operations, we can wait until REQ - * and ACK both go false, or until a phase mismatch occurs. Gather-sends - * are nastier, since the device will be expecting more data than we - * are prepared to send it, and REQ will remain asserted. On a 53C8[01] we - * could test Last Byte Sent to assure transfer (I imagine this is precisely - * why this signal was added to the newer chips) but on the older 538[01] - * this signal does not exist. The workaround for this lack is a watchdog; - * we bail out of the wait-loop after a modest amount of wait-time if - * the usual exit conditions are not met. Not a terribly clean or - * correct solution :-% - * - * DMA receive is equally tricky due to a nasty characteristic of the NCR5380. - * If the chip is in DMA receive mode, it will respond to a target's - * REQ by latching the SCSI data into the INPUT DATA register and asserting - * ACK, even if it has _already_ been notified by the DMA controller that - * the current DMA transfer has completed! If the NCR5380 is then taken - * out of DMA mode, this already-acknowledged byte is lost. This is - * not a problem for "one DMA transfer per READ command", because - * the situation will never arise... either all of the data is DMA'ed - * properly, or the target switches to MESSAGE IN phase to signal a - * disconnection (either operation bringing the DMA to a clean halt). - * However, in order to handle scatter-receive, we must work around the - * problem. The chosen fix is to DMA fewer bytes, then check for the - * condition before taking the NCR5380 out of DMA mode. One or two extra - * bytes are transferred via PIO as necessary to fill out the original - * request. - */ + /* + * A note regarding the DMA errata workarounds for early NMOS silicon. + * + * For DMA sends, we want to wait until the last byte has been + * transferred out over the bus before we turn off DMA mode. Alas, there + * seems to be no terribly good way of doing this on a 5380 under all + * conditions. For non-scatter-gather operations, we can wait until REQ + * and ACK both go false, or until a phase mismatch occurs. Gather-sends + * are nastier, since the device will be expecting more data than we + * are prepared to send it, and REQ will remain asserted. On a 53C8[01] + * we could test Last Byte Sent to assure transfer (I imagine this is + * precisely why this signal was added to the newer chips) but on the + * older 538[01] this signal does not exist. The workaround for this + * lack is a watchdog; we bail out of the wait-loop after a modest + * amount of wait-time if the usual exit conditions are not met. + * Not a terribly clean or correct solution :-% + * + * DMA receive is equally tricky due to a nasty characteristic of the + * NCR5380. If the chip is in DMA receive mode, it will respond to a + * target's REQ by latching the SCSI data into the INPUT DATA register + * and asserting ACK, even if it has _already_ been notified by the + * DMA controller that the current DMA transfer has completed! If the + * NCR5380 is then taken out of DMA mode, this already-acknowledged + * byte is lost. + * + * This is not a problem for "one DMA transfer per READ + * command", because the situation will never arise... either all of + * the data is DMA'ed properly, or the target switches to MESSAGE IN + * phase to signal a disconnection (either operation bringing the DMA + * to a clean halt). However, in order to handle scatter-receive, we + * must work around the problem. The chosen fix is to DMA fewer bytes, + * then check for the condition before taking the NCR5380 out of DMA + * mode. One or two extra bytes are transferred via PIO as necessary + * to fill out the original request. + */ if ((hostdata->flags & FLAG_DMA_FIXUP) && (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) { diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h index 64a1c6ce5e1b..d402d4bffcb2 100644 --- a/drivers/scsi/NCR5380.h +++ b/drivers/scsi/NCR5380.h @@ -3,10 +3,10 @@ * NCR 5380 defines * * Copyright 1993, Drew Eckhardt - * Visionary Computing - * (Unix consulting and custom programming) - * drew@colorado.edu - * +1 (303) 666-5836 + * Visionary Computing + * (Unix consulting and custom programming) + * drew@colorado.edu + * +1 (303) 666-5836 * * For more information, please consult * @@ -78,7 +78,7 @@ #define ICR_DIFF_ENABLE 0x20 /* wo Set to enable diff. drivers */ #define ICR_ASSERT_ACK 0x10 /* rw ini Set to assert ACK */ #define ICR_ASSERT_BSY 0x08 /* rw Set to assert BSY */ -#define ICR_ASSERT_SEL 0x04 /* rw Set to assert SEL */ +#define ICR_ASSERT_SEL 0x04 /* rw Set to assert SEL */ #define ICR_ASSERT_ATN 0x02 /* rw Set to assert ATN */ #define ICR_ASSERT_DATA 0x01 /* rw SCSI_DATA_REG is asserted */ @@ -135,7 +135,7 @@ #define BASR_IRQ 0x10 /* ro mirror of IRQ pin */ #define BASR_PHASE_MATCH 0x08 /* ro Set when MSG CD IO match TCR */ #define BASR_BUSY_ERROR 0x04 /* ro Unexpected change to inactive state */ -#define BASR_ATN 0x02 /* ro BUS status */ +#define BASR_ATN 0x02 /* ro BUS status */ #define BASR_ACK 0x01 /* ro BUS status */ /* Write any value to this register to start a DMA send */ @@ -170,7 +170,7 @@ #define CSR_BASE CSR_53C80_INTR /* Note : PHASE_* macros are based on the values of the STATUS register */ -#define PHASE_MASK (SR_MSG | SR_CD | SR_IO) +#define PHASE_MASK (SR_MSG | SR_CD | SR_IO) #define PHASE_DATAOUT 0 #define PHASE_DATAIN SR_IO diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c index f51702893306..fffc0fa52594 100644 --- a/drivers/scsi/sun3_scsi.c +++ b/drivers/scsi/sun3_scsi.c @@ -304,7 +304,7 @@ static int sun3scsi_dma_setup(struct NCR5380_hostdata *hostdata, sun3_udc_write(UDC_INT_ENABLE, UDC_CSR); #endif - return count; + return count; } From b9d104465a6c2f1bb27ae247bd90b4ab079a1699 Mon Sep 17 00:00:00 2001 From: Avri Altman Date: Sun, 11 Aug 2024 17:37:56 +0300 Subject: [PATCH 51/86] scsi: ufs: Prepare to add HCI capabilities sysfs Prepare so we'll be able to read various other HCI registers. While at it, fix the HCPID & HCMID register names to stand for what they really are. Also replace the pm_runtime_{get/put}_sync() calls in auto_hibern8_show to ufshcd_rpm_{get/put}_sync() as any host controller register reads should. Reviewed-by: Keoseong Park Reviewed-by: Bart Van Assche Reviewed-by: Bean Huo Signed-off-by: Avri Altman Link: https://lore.kernel.org/r/20240811143757.2538212-2-avri.altman@wdc.com Signed-off-by: Martin K. Petersen --- drivers/ufs/core/ufs-sysfs.c | 38 +++++++++++++++++++++--------------- include/ufs/ufshci.h | 5 +++-- 2 files changed, 25 insertions(+), 18 deletions(-) diff --git a/drivers/ufs/core/ufs-sysfs.c b/drivers/ufs/core/ufs-sysfs.c index e80a32421a8c..dec7746c98e0 100644 --- a/drivers/ufs/core/ufs-sysfs.c +++ b/drivers/ufs/core/ufs-sysfs.c @@ -198,6 +198,24 @@ static u32 ufshcd_us_to_ahit(unsigned int timer) FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, scale); } +static int ufshcd_read_hci_reg(struct ufs_hba *hba, u32 *val, unsigned int reg) +{ + down(&hba->host_sem); + if (!ufshcd_is_user_access_allowed(hba)) { + up(&hba->host_sem); + return -EBUSY; + } + + ufshcd_rpm_get_sync(hba); + ufshcd_hold(hba); + *val = ufshcd_readl(hba, reg); + ufshcd_release(hba); + ufshcd_rpm_put_sync(hba); + + up(&hba->host_sem); + return 0; +} + static ssize_t auto_hibern8_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -208,23 +226,11 @@ static ssize_t auto_hibern8_show(struct device *dev, if (!ufshcd_is_auto_hibern8_supported(hba)) return -EOPNOTSUPP; - down(&hba->host_sem); - if (!ufshcd_is_user_access_allowed(hba)) { - ret = -EBUSY; - goto out; - } + ret = ufshcd_read_hci_reg(hba, &ahit, REG_AUTO_HIBERNATE_IDLE_TIMER); + if (ret) + return ret; - pm_runtime_get_sync(hba->dev); - ufshcd_hold(hba); - ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER); - ufshcd_release(hba); - pm_runtime_put_sync(hba->dev); - - ret = sysfs_emit(buf, "%d\n", ufshcd_ahit_to_us(ahit)); - -out: - up(&hba->host_sem); - return ret; + return sysfs_emit(buf, "%d\n", ufshcd_ahit_to_us(ahit)); } static ssize_t auto_hibern8_store(struct device *dev, diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h index 38fe97971a65..194e3655902e 100644 --- a/include/ufs/ufshci.h +++ b/include/ufs/ufshci.h @@ -25,8 +25,9 @@ enum { REG_CONTROLLER_CAPABILITIES = 0x00, REG_MCQCAP = 0x04, REG_UFS_VERSION = 0x08, - REG_CONTROLLER_DEV_ID = 0x10, - REG_CONTROLLER_PROD_ID = 0x14, + REG_EXT_CONTROLLER_CAPABILITIES = 0x0C, + REG_CONTROLLER_PID = 0x10, + REG_CONTROLLER_MID = 0x14, REG_AUTO_HIBERNATE_IDLE_TIMER = 0x18, REG_INTERRUPT_STATUS = 0x20, REG_INTERRUPT_ENABLE = 0x24, From f51d748195773c7780deca815dc787c281d77eb5 Mon Sep 17 00:00:00 2001 From: Avri Altman Date: Sun, 11 Aug 2024 17:37:57 +0300 Subject: [PATCH 52/86] scsi: ufs: Add HCI capabilities sysfs group The standard register map of UFSHCI is comprised of several groups. The first group (starting from offset 0x00), is the host capabilities group. It contains some interesting information that otherwise is not available, e.g. the UFS version of the platform etc. Reviewed-by: Keoseong Park Reviewed-by: Bart Van Assche Reviewed-by: Bean Huo Signed-off-by: Avri Altman Link: https://lore.kernel.org/r/20240811143757.2538212-3-avri.altman@wdc.com Signed-off-by: Martin K. Petersen --- Documentation/ABI/testing/sysfs-driver-ufs | 27 +++++++++++ drivers/ufs/core/ufs-sysfs.c | 53 ++++++++++++++++++++++ 2 files changed, 80 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index fe943ce76c60..5fa6655aee84 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -1532,3 +1532,30 @@ Contact: Bean Huo Description: rtc_update_ms indicates how often the host should synchronize or update the UFS RTC. If set to 0, this will disable UFS RTC periodic update. + +What: /sys/devices/platform/.../ufshci_capabilities/version +Date: August 2024 +Contact: Avri Altman +Description: + Host Capabilities register group: UFS version register. + Symbol - VER. This file shows the UFSHCD version. + Example: Version 3.12 would be represented as 0000_0312h. + The file is read only. + +What: /sys/devices/platform/.../ufshci_capabilities/product_id +Date: August 2024 +Contact: Avri Altman +Description: + Host Capabilities register group: product ID register. + Symbol - HCPID. This file shows the UFSHCD product id. + The content of this register is vendor specific. + The file is read only. + +What: /sys/devices/platform/.../ufshci_capabilities/man_id +Date: August 2024 +Contact: Avri Altman +Description: + Host Capabilities register group: manufacturer ID register. + Symbol - HCMID. This file shows the UFSHCD manufacturer id. + The Manufacturer ID is defined by JEDEC in JEDEC-JEP106. + The file is read only. diff --git a/drivers/ufs/core/ufs-sysfs.c b/drivers/ufs/core/ufs-sysfs.c index dec7746c98e0..fe313800aed0 100644 --- a/drivers/ufs/core/ufs-sysfs.c +++ b/drivers/ufs/core/ufs-sysfs.c @@ -525,6 +525,58 @@ static const struct attribute_group ufs_sysfs_capabilities_group = { .attrs = ufs_sysfs_capabilities_attrs, }; +static ssize_t version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ufs_hba *hba = dev_get_drvdata(dev); + + return sysfs_emit(buf, "0x%x\n", hba->ufs_version); +} + +static ssize_t product_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + u32 val; + struct ufs_hba *hba = dev_get_drvdata(dev); + + ret = ufshcd_read_hci_reg(hba, &val, REG_CONTROLLER_PID); + if (ret) + return ret; + + return sysfs_emit(buf, "0x%x\n", val); +} + +static ssize_t man_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + u32 val; + struct ufs_hba *hba = dev_get_drvdata(dev); + + ret = ufshcd_read_hci_reg(hba, &val, REG_CONTROLLER_MID); + if (ret) + return ret; + + return sysfs_emit(buf, "0x%x\n", val); +} + +static DEVICE_ATTR_RO(version); +static DEVICE_ATTR_RO(product_id); +static DEVICE_ATTR_RO(man_id); + +static struct attribute *ufs_sysfs_ufshci_cap_attrs[] = { + &dev_attr_version.attr, + &dev_attr_product_id.attr, + &dev_attr_man_id.attr, + NULL +}; + +static const struct attribute_group ufs_sysfs_ufshci_group = { + .name = "ufshci_capabilities", + .attrs = ufs_sysfs_ufshci_cap_attrs, +}; + static ssize_t monitor_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1508,6 +1560,7 @@ static const struct attribute_group ufs_sysfs_attributes_group = { static const struct attribute_group *ufs_sysfs_groups[] = { &ufs_sysfs_default_group, &ufs_sysfs_capabilities_group, + &ufs_sysfs_ufshci_group, &ufs_sysfs_monitor_group, &ufs_sysfs_power_info_group, &ufs_sysfs_device_descriptor_group, From 3ba963597d19d88eb06b50af8e8757abbdc9035b Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 15 Aug 2024 14:24:36 +0300 Subject: [PATCH 53/86] scsi: ufs: ufshcd-pltfrm: Signedness bug in ufshcd_parse_clock_info() The "sz" variable needs to be a signed type for the error handling to work as intended. Fortunately, there is some sanity checking on "sz" on the next line, so negative values would be caught and it doesn't really affect runtime. Fixes: eab0dce11dd9 ("scsi: ufs: ufshcd-pltfrm: Use of_property_count_u32_elems() to get property length") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/404a4727-89c6-410b-9ece-301fa399d4db@stanley.mountain Reviewed-by: Manivannan Sadhasivam Signed-off-by: Martin K. Petersen --- drivers/ufs/host/ufshcd-pltfrm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index 0c9b303ccfa0..1f4f30d6cb42 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -31,7 +31,7 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba) const char *name; u32 *clkfreq = NULL; struct ufs_clk_info *clki; - size_t sz = 0; + ssize_t sz = 0; if (!np) goto out; From 89835a58f5f54d52537709f2513fb91024e2d069 Mon Sep 17 00:00:00 2001 From: Avri Altman Date: Wed, 21 Aug 2024 08:54:11 +0300 Subject: [PATCH 54/86] scsi: ufs: Move UFS trace events to private header UFS trace events are called exclusively from the UFS core drivers. Make those events private to the core driver. The MAINTAINERS file does not need updating as the maintainership remains the same and the relevant directory is already covered. Reviewed-by: Bart Van Assche Signed-off-by: Avri Altman Link: https://lore.kernel.org/r/20240821055411.3128159-1-avri.altman@wdc.com Acked-by: Bean Huo Signed-off-by: Martin K. Petersen --- include/trace/events/ufs.h => drivers/ufs/core/ufs_trace.h | 6 ++++++ drivers/ufs/core/ufshcd.c | 2 +- include/ufs/ufs.h | 4 ++-- 3 files changed, 9 insertions(+), 3 deletions(-) rename include/trace/events/ufs.h => drivers/ufs/core/ufs_trace.h (98%) diff --git a/include/trace/events/ufs.h b/drivers/ufs/core/ufs_trace.h similarity index 98% rename from include/trace/events/ufs.h rename to drivers/ufs/core/ufs_trace.h index c4e209fbdfbb..84deca2b841d 100644 --- a/include/trace/events/ufs.h +++ b/drivers/ufs/core/ufs_trace.h @@ -9,6 +9,7 @@ #if !defined(_TRACE_UFS_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_UFS_H +#include #include #define str_opcode(opcode) \ @@ -395,5 +396,10 @@ TRACE_EVENT(ufshcd_exception_event, #endif /* if !defined(_TRACE_UFS_H) || defined(TRACE_HEADER_MULTI_READ) */ +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH ../../drivers/ufs/core +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE ufs_trace + /* This part must be outside protection */ #include diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 0dd26059f5d7..db30d0c4d91e 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -39,7 +39,7 @@ #include #define CREATE_TRACE_POINTS -#include +#include "ufs_trace.h" #define UFSHCD_ENABLE_INTRS (UTP_TRANSFER_REQ_COMPL |\ UTP_TASK_REQ_COMPL |\ diff --git a/include/ufs/ufs.h b/include/ufs/ufs.h index 853e95957c31..e594abe5d05f 100644 --- a/include/ufs/ufs.h +++ b/include/ufs/ufs.h @@ -597,7 +597,7 @@ struct ufs_dev_info { }; /* - * This enum is used in string mapping in include/trace/events/ufs.h. + * This enum is used in string mapping in ufs_trace.h. */ enum ufs_trace_str_t { UFS_CMD_SEND, UFS_CMD_COMP, UFS_DEV_COMP, @@ -607,7 +607,7 @@ enum ufs_trace_str_t { /* * Transaction Specific Fields (TSF) type in the UPIU package, this enum is - * used in include/trace/events/ufs.h for UFS command trace. + * used in ufs_trace.h for UFS command trace. */ enum ufs_trace_tsf_t { UFS_TSF_CDB, UFS_TSF_OSF, UFS_TSF_TM_INPUT, UFS_TSF_TM_OUTPUT From 2e4b02fad094976763af08fec2c620f4f8edd9ae Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 15 Aug 2024 14:29:05 +0300 Subject: [PATCH 55/86] scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free. Fixes: fcd427303eb9 ("scsi: elx: libefc: SLI and FC PORT state machine interfaces") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/b666ab26-6581-4213-9a3d-32a9147f0399@stanley.mountain Reviewed-by: Daniel Wagner Signed-off-by: Martin K. Petersen --- drivers/scsi/elx/libefc/efc_nport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/elx/libefc/efc_nport.c b/drivers/scsi/elx/libefc/efc_nport.c index 2e83a667901f..1a7437f4328e 100644 --- a/drivers/scsi/elx/libefc/efc_nport.c +++ b/drivers/scsi/elx/libefc/efc_nport.c @@ -705,9 +705,9 @@ efc_nport_vport_del(struct efc *efc, struct efc_domain *domain, spin_lock_irqsave(&efc->lock, flags); list_for_each_entry(nport, &domain->nport_list, list_entry) { if (nport->wwpn == wwpn && nport->wwnn == wwnn) { - kref_put(&nport->ref, nport->release); /* Shutdown this NPORT */ efc_sm_post_event(&nport->sm, EFC_EVT_SHUTDOWN, NULL); + kref_put(&nport->ref, nport->release); break; } } From 3c9265ed191d34349889ee426ed4a2394ba4a77b Mon Sep 17 00:00:00 2001 From: Yue Haibing Date: Sat, 10 Aug 2024 17:34:37 +0800 Subject: [PATCH 56/86] scsi: target: Remove unused declarations Commit 13247018d68f ("scsi: target: iscsi: Fix hang in the iSCSI login code") removed iscsi_handle_login_thread_timeout() but left declaration. Commit 3e1c81a95f0d ("iscsi-target: Refactor RX PDU logic + export request PDU handling") left iscsi_target_get_initial_payload() declaration. Commit d703ce2f7f4d ("iscsi/iser-target: Convert to command priv_size usage") remove iscsit_alloc_cmd() but left declaration. And finally, a few other declarations were never implenmented since introduction in commit e48354ce078c ("iscsi-target: Add iSCSI fabric support for target v4.1"). Signed-off-by: Yue Haibing Link: https://lore.kernel.org/r/20240810093437.2586476-1-yuehaibing@huawei.com Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/iscsi_target.h | 2 -- drivers/target/iscsi/iscsi_target_login.h | 1 - drivers/target/iscsi/iscsi_target_nego.h | 2 -- drivers/target/iscsi/iscsi_target_tpg.h | 5 ----- drivers/target/iscsi/iscsi_target_util.h | 5 ----- 5 files changed, 15 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h index 0c997a08adec..873411e95ed2 100644 --- a/drivers/target/iscsi/iscsi_target.h +++ b/drivers/target/iscsi/iscsi_target.h @@ -15,7 +15,6 @@ struct kref; struct sockaddr_storage; extern struct iscsi_tiqn *iscsit_get_tiqn_for_login(unsigned char *); -extern struct iscsi_tiqn *iscsit_get_tiqn(unsigned char *, int); extern void iscsit_put_tiqn_for_login(struct iscsi_tiqn *); extern struct iscsi_tiqn *iscsit_add_tiqn(unsigned char *); extern void iscsit_del_tiqn(struct iscsi_tiqn *); @@ -35,7 +34,6 @@ extern void iscsit_set_unsolicited_dataout(struct iscsit_cmd *); extern int iscsit_logout_closesession(struct iscsit_cmd *, struct iscsit_conn *); extern int iscsit_logout_closeconnection(struct iscsit_cmd *, struct iscsit_conn *); extern int iscsit_logout_removeconnforrecovery(struct iscsit_cmd *, struct iscsit_conn *); -extern int iscsit_send_async_msg(struct iscsit_conn *, u16, u8, u8); extern int iscsit_build_r2ts_for_cmd(struct iscsit_conn *, struct iscsit_cmd *, bool recovery); extern void iscsit_thread_get_cpumask(struct iscsit_conn *); extern int iscsi_target_tx_thread(void *); diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h index 3ca2f232b387..e8760735486b 100644 --- a/drivers/target/iscsi/iscsi_target_login.h +++ b/drivers/target/iscsi/iscsi_target_login.h @@ -24,6 +24,5 @@ extern int iscsit_start_kthreads(struct iscsit_conn *); extern void iscsi_post_login_handler(struct iscsi_np *, struct iscsit_conn *, u8); extern void iscsi_target_login_sess_out(struct iscsit_conn *, bool, bool); extern int iscsi_target_login_thread(void *); -extern void iscsi_handle_login_thread_timeout(struct timer_list *t); #endif /*** ISCSI_TARGET_LOGIN_H ***/ diff --git a/drivers/target/iscsi/iscsi_target_nego.h b/drivers/target/iscsi/iscsi_target_nego.h index 41c3db3ddeaa..e60a46d34835 100644 --- a/drivers/target/iscsi/iscsi_target_nego.h +++ b/drivers/target/iscsi/iscsi_target_nego.h @@ -15,8 +15,6 @@ extern int extract_param(const char *, const char *, unsigned int, char *, unsigned char *); extern int iscsi_target_check_login_request(struct iscsit_conn *, struct iscsi_login *); -extern int iscsi_target_get_initial_payload(struct iscsit_conn *, - struct iscsi_login *); extern int iscsi_target_locate_portal(struct iscsi_np *, struct iscsit_conn *, struct iscsi_login *); extern int iscsi_target_start_negotiation( diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h index 71d067f62177..d44d09f2dde9 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.h +++ b/drivers/target/iscsi/iscsi_target_tpg.h @@ -24,12 +24,7 @@ extern int iscsit_tpg_del_portal_group(struct iscsi_tiqn *, struct iscsi_portal_ int); extern int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *); extern int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *, int); -extern struct iscsi_node_acl *iscsit_tpg_add_initiator_node_acl( - struct iscsi_portal_group *, const char *, u32); -extern void iscsit_tpg_del_initiator_node_acl(struct iscsi_portal_group *, - struct se_node_acl *); extern struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(struct iscsit_session *); -extern void iscsit_tpg_del_external_nps(struct iscsi_tpg_np *); extern struct iscsi_tpg_np *iscsit_tpg_locate_child_np(struct iscsi_tpg_np *, int); extern struct iscsi_tpg_np *iscsit_tpg_add_network_portal(struct iscsi_portal_group *, struct sockaddr_storage *, struct iscsi_tpg_np *, diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h index 24b8e577575a..336da4fb0a77 100644 --- a/drivers/target/iscsi/iscsi_target_util.h +++ b/drivers/target/iscsi/iscsi_target_util.h @@ -17,7 +17,6 @@ extern struct iscsi_r2t *iscsit_get_r2t_for_eos(struct iscsit_cmd *, u32, u32); extern struct iscsi_r2t *iscsit_get_r2t_from_list(struct iscsit_cmd *); extern void iscsit_free_r2t(struct iscsi_r2t *, struct iscsit_cmd *); extern void iscsit_free_r2ts_from_list(struct iscsit_cmd *); -extern struct iscsit_cmd *iscsit_alloc_cmd(struct iscsit_conn *, gfp_t); extern struct iscsit_cmd *iscsit_allocate_cmd(struct iscsit_conn *, int); extern struct iscsi_seq *iscsit_get_seq_holder_for_datain(struct iscsit_cmd *, u32); extern struct iscsi_seq *iscsit_get_seq_holder_for_r2t(struct iscsit_cmd *); @@ -34,7 +33,6 @@ extern void iscsit_add_cmd_to_immediate_queue(struct iscsit_cmd *, struct iscsit extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsit_conn *); extern int iscsit_add_cmd_to_response_queue(struct iscsit_cmd *, struct iscsit_conn *, u8); extern struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsit_conn *); -extern void iscsit_remove_cmd_from_tx_queues(struct iscsit_cmd *, struct iscsit_conn *); extern bool iscsit_conn_all_queues_empty(struct iscsit_conn *); extern void iscsit_free_queue_reqs_for_conn(struct iscsit_conn *); extern void iscsit_release_cmd(struct iscsit_cmd *); @@ -64,9 +62,6 @@ extern int iscsit_send_tx_data(struct iscsit_cmd *, struct iscsit_conn *, int); extern int iscsit_fe_sendpage_sg(struct iscsit_cmd *, struct iscsit_conn *); extern int iscsit_tx_login_rsp(struct iscsit_conn *, u8, u8); extern void iscsit_print_session_params(struct iscsit_session *); -extern int iscsit_print_dev_to_proc(char *, char **, off_t, int); -extern int iscsit_print_sessions_to_proc(char *, char **, off_t, int); -extern int iscsit_print_tpg_to_proc(char *, char **, off_t, int); extern int rx_data(struct iscsit_conn *, struct kvec *, int, int); extern int tx_data(struct iscsit_conn *, struct kvec *, int, int); extern void iscsit_collect_login_stats(struct iscsit_conn *, u8, u8); From b97c0741c7dccedec60524b596c4fa9d6a136523 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:05 -0700 Subject: [PATCH 57/86] scsi: Expand all create*_workqueue() invocations The workqueue maintainer wants to remove the create*_workqueue() macros because these macros always set the WQ_MEM_RECLAIM flag and because these only support literal workqueue names. Hence this patch that replaces the create*_workqueue() invocations with the definition of this macro. The WQ_MEM_RECLAIM flag has been retained because I think that flag is necessary for workqueues created by storage drivers. This patch has been generated by running spatch and git clang-format. spatch has been invoked as follows: spatch --in-place --sp-file expand-create-workqueue.spatch $(git grep -lEw 'create_(freezable_|singlethread_|)workqueue' */scsi */ufs) The contents of the expand-create-workqueue.spatch file is as follows: @@ expression name; @@ -create_workqueue(name) +alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, name) @@ expression name; @@ -create_freezable_workqueue(name) +alloc_workqueue("%s", WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, 1, name) @@ expression name; @@ -create_singlethread_workqueue(name) +alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name) Reviewed-by: Peter Wang Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-2-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/bfa/bfad_im.c | 3 ++- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 4 ++-- drivers/scsi/device_handler/scsi_dh_rdac.c | 3 ++- drivers/scsi/elx/efct/efct_lio.c | 3 ++- drivers/scsi/esas2r/esas2r_init.c | 3 ++- drivers/scsi/fcoe/fcoe_sysfs.c | 8 ++++---- drivers/scsi/fnic/fnic_main.c | 6 ++++-- drivers/scsi/hisi_sas/hisi_sas_main.c | 3 ++- drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 +- drivers/scsi/libfc/fc_exch.c | 3 ++- drivers/scsi/libfc/fc_rport.c | 3 ++- drivers/scsi/libsas/sas_init.c | 4 ++-- drivers/scsi/megaraid/megaraid_sas_fusion.c | 4 ++-- drivers/scsi/mpi3mr/mpi3mr_fw.c | 4 ++-- drivers/scsi/mpt3sas/mpt3sas_base.c | 4 ++-- drivers/scsi/myrb.c | 3 ++- drivers/scsi/myrs.c | 3 ++- drivers/scsi/qedf/qedf_main.c | 13 +++++++------ drivers/scsi/qedi/qedi_main.c | 6 ++++-- drivers/scsi/qla2xxx/qla_os.c | 6 ++++-- drivers/scsi/qla4xxx/ql4_os.c | 2 +- drivers/scsi/snic/snic_main.c | 6 ++++-- drivers/scsi/stex.c | 3 ++- drivers/scsi/vmw_pvscsi.c | 3 ++- drivers/ufs/core/ufshcd.c | 5 +++-- 25 files changed, 64 insertions(+), 43 deletions(-) diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index a9d3d8562d3c..a1d015356063 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -768,7 +768,8 @@ bfad_thread_workq(struct bfad_s *bfad) bfa_trc(bfad, 0); snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", bfad->inst_no); - im->drv_workq = create_singlethread_workqueue(im->drv_workq_name); + im->drv_workq = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, + im->drv_workq_name); if (!im->drv_workq) return BFA_STATUS_FAILED; diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 1078c20c5ef6..f49783b89d04 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2363,8 +2363,8 @@ static int _bnx2fc_create(struct net_device *netdev, interface->vlan_id = vlan_id; interface->tm_timeout = BNX2FC_TM_TIMEOUT; - interface->timer_work_queue = - create_singlethread_workqueue("bnx2fc_timer_wq"); + interface->timer_work_queue = alloc_ordered_workqueue( + "%s", WQ_MEM_RECLAIM, "bnx2fc_timer_wq"); if (!interface->timer_work_queue) { printk(KERN_ERR PFX "ulp_init could not create timer_wq\n"); rc = -EINVAL; diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index f8a09e3eba58..6e1b252cea0e 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -822,7 +822,8 @@ static int __init rdac_init(void) /* * Create workqueue to handle mode selects for rdac */ - kmpath_rdacd = create_singlethread_workqueue("kmpath_rdacd"); + kmpath_rdacd = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "kmpath_rdacd"); if (!kmpath_rdacd) { scsi_unregister_device_handler(&rdac_dh); printk(KERN_ERR "kmpath_rdacd creation failed.\n"); diff --git a/drivers/scsi/elx/efct/efct_lio.c b/drivers/scsi/elx/efct/efct_lio.c index 6a6ec32c46bd..9ac69356b13e 100644 --- a/drivers/scsi/elx/efct/efct_lio.c +++ b/drivers/scsi/elx/efct/efct_lio.c @@ -1114,7 +1114,8 @@ int efct_scsi_tgt_new_device(struct efct *efct) atomic_set(&efct->tgt_efct.watermark_hit, 0); atomic_set(&efct->tgt_efct.initiator_count, 0); - lio_wq = create_singlethread_workqueue("efct_lio_worker"); + lio_wq = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, + "efct_lio_worker"); if (!lio_wq) { efc_log_err(efct, "workqueue create failed\n"); return -EIO; diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c index c1a5ab662dc8..ff1fa3160c61 100644 --- a/drivers/scsi/esas2r/esas2r_init.c +++ b/drivers/scsi/esas2r/esas2r_init.c @@ -313,7 +313,8 @@ int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid, esas2r_fw_event_off(a); snprintf(a->fw_event_q_name, ESAS2R_KOBJ_NAME_LEN, "esas2r/%d", a->index); - a->fw_event_q = create_singlethread_workqueue(a->fw_event_q_name); + a->fw_event_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, + a->fw_event_q_name); init_waitqueue_head(&a->buffered_ioctl_waiter); init_waitqueue_head(&a->nvram_waiter); diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c index 7d3b904af9e8..06357bbf6b2c 100644 --- a/drivers/scsi/fcoe/fcoe_sysfs.c +++ b/drivers/scsi/fcoe/fcoe_sysfs.c @@ -799,16 +799,16 @@ struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent, snprintf(ctlr->work_q_name, sizeof(ctlr->work_q_name), "ctlr_wq_%d", ctlr->id); - ctlr->work_q = create_singlethread_workqueue( - ctlr->work_q_name); + ctlr->work_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, + ctlr->work_q_name); if (!ctlr->work_q) goto out_del; snprintf(ctlr->devloss_work_q_name, sizeof(ctlr->devloss_work_q_name), "ctlr_dl_wq_%d", ctlr->id); - ctlr->devloss_work_q = create_singlethread_workqueue( - ctlr->devloss_work_q_name); + ctlr->devloss_work_q = alloc_ordered_workqueue( + "%s", WQ_MEM_RECLAIM, ctlr->devloss_work_q_name); if (!ctlr->devloss_work_q) goto out_del_q; diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 29eead383eb9..0044717d4486 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -1161,14 +1161,16 @@ static int __init fnic_init_module(void) goto err_create_fnic_ioreq_slab; } - fnic_event_queue = create_singlethread_workqueue("fnic_event_wq"); + fnic_event_queue = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "fnic_event_wq"); if (!fnic_event_queue) { printk(KERN_ERR PFX "fnic work queue create failed\n"); err = -ENOMEM; goto err_create_fnic_workq; } - fnic_fip_queue = create_singlethread_workqueue("fnic_fip_q"); + fnic_fip_queue = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "fnic_fip_q"); if (!fnic_fip_queue) { printk(KERN_ERR PFX "fnic FIP work queue create failed\n"); err = -ENOMEM; diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index ec1a3e7ee94d..6219807ce3b9 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -2302,7 +2302,8 @@ int hisi_sas_alloc(struct hisi_hba *hisi_hba) hisi_hba->last_slot_index = 0; - hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); + hisi_hba->wq = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, dev_name(dev)); if (!hisi_hba->wq) { dev_err(dev, "sas_alloc: failed to create workqueue\n"); goto err_out; diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index 2fca17cf8b51..639f72f28911 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -3537,7 +3537,7 @@ static int ibmvscsis_probe(struct vio_dev *vdev, init_completion(&vscsi->unconfig); snprintf(wq_name, 24, "ibmvscsis%s", dev_name(&vdev->dev)); - vscsi->work_q = create_workqueue(wq_name); + vscsi->work_q = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, wq_name); if (!vscsi->work_q) { rc = -ENOMEM; dev_err(&vscsi->dev, "create_workqueue failed\n"); diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 1d91c457527f..f84a7e6ae379 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -2693,7 +2693,8 @@ int fc_setup_exch_mgr(void) fc_cpu_order = ilog2(roundup_pow_of_two(nr_cpu_ids)); fc_cpu_mask = (1 << fc_cpu_order) - 1; - fc_exch_workqueue = create_singlethread_workqueue("fc_exch_workqueue"); + fc_exch_workqueue = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, + "fc_exch_workqueue"); if (!fc_exch_workqueue) goto err; return 0; diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index 33da3c1085f0..308cb4872f96 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -2263,7 +2263,8 @@ struct fc4_prov fc_rport_t0_prov = { */ int fc_setup_rport(void) { - rport_event_queue = create_singlethread_workqueue("fc_rport_eq"); + rport_event_queue = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "fc_rport_eq"); if (!rport_event_queue) return -ENOMEM; return 0; diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c index 9c8cc723170d..8566bb1208a0 100644 --- a/drivers/scsi/libsas/sas_init.c +++ b/drivers/scsi/libsas/sas_init.c @@ -122,12 +122,12 @@ int sas_register_ha(struct sas_ha_struct *sas_ha) error = -ENOMEM; snprintf(name, sizeof(name), "%s_event_q", dev_name(sas_ha->dev)); - sas_ha->event_q = create_singlethread_workqueue(name); + sas_ha->event_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name); if (!sas_ha->event_q) goto Undo_ports; snprintf(name, sizeof(name), "%s_disco_q", dev_name(sas_ha->dev)); - sas_ha->disco_q = create_singlethread_workqueue(name); + sas_ha->disco_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name); if (!sas_ha->disco_q) goto Undo_event_q; diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 6c1fb8149553..1eec23da28e2 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1988,8 +1988,8 @@ megasas_fusion_start_watchdog(struct megasas_instance *instance) sizeof(instance->fault_handler_work_q_name), "poll_megasas%d_status", instance->host->host_no); - instance->fw_fault_work_q = - create_singlethread_workqueue(instance->fault_handler_work_q_name); + instance->fw_fault_work_q = alloc_ordered_workqueue( + "%s", WQ_MEM_RECLAIM, instance->fault_handler_work_q_name); if (!instance->fw_fault_work_q) { dev_err(&instance->pdev->dev, "Failed from %s %d\n", __func__, __LINE__); diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index c196dc14ad20..7c739468dca5 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -2742,8 +2742,8 @@ void mpi3mr_start_watchdog(struct mpi3mr_ioc *mrioc) snprintf(mrioc->watchdog_work_q_name, sizeof(mrioc->watchdog_work_q_name), "watchdog_%s%d", mrioc->name, mrioc->id); - mrioc->watchdog_work_q = - create_singlethread_workqueue(mrioc->watchdog_work_q_name); + mrioc->watchdog_work_q = alloc_ordered_workqueue( + "%s", WQ_MEM_RECLAIM, mrioc->watchdog_work_q_name); if (!mrioc->watchdog_work_q) { ioc_err(mrioc, "%s: failed (line=%d)\n", __func__, __LINE__); return; diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index b2bcf4a27ddc..2d3eeda5a6a0 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -846,8 +846,8 @@ mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc) snprintf(ioc->fault_reset_work_q_name, sizeof(ioc->fault_reset_work_q_name), "poll_%s%d_status", ioc->driver_name, ioc->id); - ioc->fault_reset_work_q = - create_singlethread_workqueue(ioc->fault_reset_work_q_name); + ioc->fault_reset_work_q = alloc_ordered_workqueue( + "%s", WQ_MEM_RECLAIM, ioc->fault_reset_work_q_name); if (!ioc->fault_reset_work_q) { ioc_err(ioc, "%s: failed (line=%d)\n", __func__, __LINE__); return; diff --git a/drivers/scsi/myrb.c b/drivers/scsi/myrb.c index f684eb5e0489..140dc0e9cead 100644 --- a/drivers/scsi/myrb.c +++ b/drivers/scsi/myrb.c @@ -114,7 +114,8 @@ static bool myrb_create_mempools(struct pci_dev *pdev, struct myrb_hba *cb) snprintf(cb->work_q_name, sizeof(cb->work_q_name), "myrb_wq_%d", cb->host->host_no); - cb->work_q = create_singlethread_workqueue(cb->work_q_name); + cb->work_q = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, cb->work_q_name); if (!cb->work_q) { dma_pool_destroy(cb->dcdb_pool); cb->dcdb_pool = NULL; diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c index e824be9d9bbb..8a8f26633cda 100644 --- a/drivers/scsi/myrs.c +++ b/drivers/scsi/myrs.c @@ -2208,7 +2208,8 @@ static bool myrs_create_mempools(struct pci_dev *pdev, struct myrs_hba *cs) snprintf(cs->work_q_name, sizeof(cs->work_q_name), "myrs_wq_%d", shost->host_no); - cs->work_q = create_singlethread_workqueue(cs->work_q_name); + cs->work_q = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, cs->work_q_name); if (!cs->work_q) { dma_pool_destroy(cs->dcdb_pool); cs->dcdb_pool = NULL; diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 4813087e58a1..119afcaf6e13 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -3374,7 +3374,8 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) sprintf(host_buf, "qedf_%u_link", qedf->lport->host->host_no); - qedf->link_update_wq = create_workqueue(host_buf); + qedf->link_update_wq = + alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update); INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery); INIT_DELAYED_WORK(&qedf->grcdump_work, qedf_wq_grcdump); @@ -3585,8 +3586,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) /* Start LL2 processing thread */ snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no); - qedf->ll2_recv_wq = - create_workqueue(host_buf); + qedf->ll2_recv_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); if (!qedf->ll2_recv_wq) { QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n"); rc = -ENOMEM; @@ -3629,7 +3629,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no); qedf->timer_work_queue = - create_workqueue(host_buf); + alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); if (!qedf->timer_work_queue) { QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer " "workqueue.\n"); @@ -3641,7 +3641,8 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) if (mode != QEDF_MODE_RECOVERY) { sprintf(host_buf, "qedf_%u_dpc", qedf->lport->host->host_no); - qedf->dpc_wq = create_workqueue(host_buf); + qedf->dpc_wq = + alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); } INIT_DELAYED_WORK(&qedf->recovery_work, qedf_recovery_handler); @@ -4182,7 +4183,7 @@ static int __init qedf_init(void) goto err3; } - qedf_io_wq = create_workqueue("qedf_io_wq"); + qedf_io_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, "qedf_io_wq"); if (!qedf_io_wq) { QEDF_ERR(NULL, "Could not create qedf_io_wq.\n"); goto err4; diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index cd0180b1f5b9..319c1da549f7 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -2767,7 +2767,8 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) } sprintf(host_buf, "host_%d", qedi->shost->host_no); - qedi->tmf_thread = create_singlethread_workqueue(host_buf); + qedi->tmf_thread = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, host_buf); if (!qedi->tmf_thread) { QEDI_ERR(&qedi->dbg_ctx, "Unable to start tmf thread!\n"); @@ -2776,7 +2777,8 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) } sprintf(host_buf, "qedi_ofld%d", qedi->shost->host_no); - qedi->offload_thread = create_workqueue(host_buf); + qedi->offload_thread = + alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); if (!qedi->offload_thread) { QEDI_ERR(&qedi->dbg_ctx, "Unable to start offload thread!\n"); diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index bc3b2aea3f8b..7f980e6141c2 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -3501,11 +3501,13 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) { sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no); - ha->dpc_lp_wq = create_singlethread_workqueue(wq_name); + ha->dpc_lp_wq = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, wq_name); INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen); sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no); - ha->dpc_hp_wq = create_singlethread_workqueue(wq_name); + ha->dpc_hp_wq = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, wq_name); INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work); INIT_WORK(&ha->idc_state_handler, qla83xx_idc_state_handler_work); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 17cccd14765f..d91f54a6e752 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -8806,7 +8806,7 @@ static int qla4xxx_probe_adapter(struct pci_dev *pdev, DEBUG2(printk("scsi: %s: Starting kernel thread for " "qla4xxx_dpc\n", __func__)); sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); - ha->dpc_thread = create_singlethread_workqueue(buf); + ha->dpc_thread = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, buf); if (!ha->dpc_thread) { ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); ret = -ENODEV; diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c index cc824dcfe7da..2bd01eb57869 100644 --- a/drivers/scsi/snic/snic_main.c +++ b/drivers/scsi/snic/snic_main.c @@ -302,7 +302,8 @@ snic_add_host(struct Scsi_Host *shost, struct pci_dev *pdev) SNIC_BUG_ON(shost->work_q != NULL); snprintf(shost->work_q_name, sizeof(shost->work_q_name), "scsi_wq_%d", shost->host_no); - shost->work_q = create_singlethread_workqueue(shost->work_q_name); + shost->work_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, + shost->work_q_name); if (!shost->work_q) { SNIC_HOST_ERR(shost, "Failed to Create ScsiHost wq.\n"); @@ -884,7 +885,8 @@ snic_global_data_init(void) snic_glob->req_cache[SNIC_REQ_TM_CACHE] = cachep; /* snic_event queue */ - snic_glob->event_q = create_singlethread_workqueue("snic_event_wq"); + snic_glob->event_q = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "snic_event_wq"); if (!snic_glob->event_q) { SNIC_ERR("snic event queue create failed\n"); ret = -ENOMEM; diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 8ffb75be99bc..fbee7db4a835 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -1797,7 +1797,8 @@ static int stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) snprintf(hba->work_q_name, sizeof(hba->work_q_name), "stex_wq_%d", host->host_no); - hba->work_q = create_singlethread_workqueue(hba->work_q_name); + hba->work_q = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, hba->work_q_name); if (!hba->work_q) { printk(KERN_ERR DRV_NAME "(%s): create workqueue failed\n", pci_name(pdev)); diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index c4fea077265e..32242d86cf5b 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -1137,7 +1137,8 @@ static int pvscsi_setup_msg_workqueue(struct pvscsi_adapter *adapter) snprintf(name, sizeof(name), "vmw_pvscsi_wq_%u", adapter->host->host_no); - adapter->workqueue = create_singlethread_workqueue(name); + adapter->workqueue = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name); if (!adapter->workqueue) { printk(KERN_ERR "vmw_pvscsi: failed to create work queue\n"); return 0; diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index dc757ba47522..930b15d9356b 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -1800,7 +1800,8 @@ static void ufshcd_init_clk_scaling(struct ufs_hba *hba) snprintf(wq_name, sizeof(wq_name), "ufs_clkscaling_%d", hba->host->host_no); - hba->clk_scaling.workq = create_singlethread_workqueue(wq_name); + hba->clk_scaling.workq = + alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, wq_name); hba->clk_scaling.is_initialized = true; } @@ -10444,7 +10445,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) /* Initialize work queues */ snprintf(eh_wq_name, sizeof(eh_wq_name), "ufs_eh_wq_%d", hba->host->host_no); - hba->eh_wq = create_singlethread_workqueue(eh_wq_name); + hba->eh_wq = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, eh_wq_name); if (!hba->eh_wq) { dev_err(hba->dev, "%s: failed to create eh workqueue\n", __func__); From dec523975b85e725e2bf786a0b7dcee76b77a64e Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:06 -0700 Subject: [PATCH 58/86] scsi: mptfusion: Simplify the alloc*_workqueue() invocations Let alloc*_workqueue() format the workqueue names instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-3-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/message/fusion/mptbase.c | 10 +++------- drivers/message/fusion/mptbase.h | 3 --- drivers/message/fusion/mptfc.c | 7 ++----- 3 files changed, 5 insertions(+), 15 deletions(-) diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 4bf669c55649..738bc4e60a18 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1856,10 +1856,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) /* Initialize workqueue */ INIT_DELAYED_WORK(&ioc->fault_reset_work, mpt_fault_reset_work); - snprintf(ioc->reset_work_q_name, MPT_KOBJ_NAME_LEN, - "mpt_poll_%d", ioc->id); - ioc->reset_work_q = alloc_workqueue(ioc->reset_work_q_name, - WQ_MEM_RECLAIM, 0); + ioc->reset_work_q = + alloc_workqueue("mpt_poll_%d", WQ_MEM_RECLAIM, 0, ioc->id); if (!ioc->reset_work_q) { printk(MYIOC_s_ERR_FMT "Insufficient memory to add adapter!\n", ioc->name); @@ -1986,9 +1984,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) INIT_LIST_HEAD(&ioc->fw_event_list); spin_lock_init(&ioc->fw_event_lock); - snprintf(ioc->fw_event_q_name, MPT_KOBJ_NAME_LEN, "mpt/%d", ioc->id); - ioc->fw_event_q = alloc_workqueue(ioc->fw_event_q_name, - WQ_MEM_RECLAIM, 0); + ioc->fw_event_q = alloc_workqueue("mpt/%d", WQ_MEM_RECLAIM, 0, ioc->id); if (!ioc->fw_event_q) { printk(MYIOC_s_ERR_FMT "Insufficient memory to add adapter!\n", ioc->name); diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index 8031173c3655..b406fd676da0 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -729,7 +729,6 @@ typedef struct _MPT_ADAPTER struct list_head fw_event_list; spinlock_t fw_event_lock; u8 fw_events_off; /* if '1', then ignore events */ - char fw_event_q_name[MPT_KOBJ_NAME_LEN]; struct mutex sas_discovery_mutex; u8 sas_discovery_runtime; @@ -764,7 +763,6 @@ typedef struct _MPT_ADAPTER u8 fc_link_speed[2]; spinlock_t fc_rescan_work_lock; struct work_struct fc_rescan_work; - char fc_rescan_work_q_name[MPT_KOBJ_NAME_LEN]; struct workqueue_struct *fc_rescan_work_q; /* driver forced bus resets count */ @@ -778,7 +776,6 @@ typedef struct _MPT_ADAPTER spinlock_t scsi_lookup_lock; u64 dma_mask; u32 broadcast_aen_busy; - char reset_work_q_name[MPT_KOBJ_NAME_LEN]; struct workqueue_struct *reset_work_q; struct delayed_work fault_reset_work; diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index a3c17c4fe69c..91242f26defb 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -1349,11 +1349,8 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* initialize workqueue */ - snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), - "mptfc_wq_%d", sh->host_no); - ioc->fc_rescan_work_q = - alloc_ordered_workqueue(ioc->fc_rescan_work_q_name, - WQ_MEM_RECLAIM); + ioc->fc_rescan_work_q = alloc_ordered_workqueue( + "mptfc_wq_%d", WQ_MEM_RECLAIM, sh->host_no); if (!ioc->fc_rescan_work_q) { error = -ENOMEM; goto out_mptfc_host; From 66088e7b918275a4520f5d7939e7cf9d495e3b83 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:07 -0700 Subject: [PATCH 59/86] scsi: be2iscsi: Simplify an alloc_workqueue() invocation Let alloc_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-4-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/be2iscsi/be_main.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 06acb5ff609e..76a1e373386e 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -5528,7 +5528,6 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev, struct beiscsi_hba *phba = NULL; struct be_eq_obj *pbe_eq; unsigned int s_handle; - char wq_name[20]; int ret, i; ret = beiscsi_enable_pci(pcidev); @@ -5634,9 +5633,8 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev, phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0; - snprintf(wq_name, sizeof(wq_name), "beiscsi_%02x_wq", - phba->shost->host_no); - phba->wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, wq_name); + phba->wq = alloc_workqueue("beiscsi_%02x_wq", WQ_MEM_RECLAIM, 1, + phba->shost->host_no); if (!phba->wq) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BM_%d : beiscsi_dev_probe-" From 70fbb7c11507576011511dbf4d00940ebb3a09fb Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:08 -0700 Subject: [PATCH 60/86] scsi: bfa: Simplify an alloc_ordered_workqueue() invocation Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-5-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/bfa/bfad_im.c | 6 ++---- drivers/scsi/bfa/bfad_im.h | 1 - 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index a1d015356063..66fb701401de 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -766,10 +766,8 @@ bfad_thread_workq(struct bfad_s *bfad) struct bfad_im_s *im = bfad->im; bfa_trc(bfad, 0); - snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", - bfad->inst_no); - im->drv_workq = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, - im->drv_workq_name); + im->drv_workq = alloc_ordered_workqueue("bfad_wq_%d", WQ_MEM_RECLAIM, + bfad->inst_no); if (!im->drv_workq) return BFA_STATUS_FAILED; diff --git a/drivers/scsi/bfa/bfad_im.h b/drivers/scsi/bfa/bfad_im.h index 4353feedf76a..0884af04bd1f 100644 --- a/drivers/scsi/bfa/bfad_im.h +++ b/drivers/scsi/bfa/bfad_im.h @@ -134,7 +134,6 @@ struct bfad_fcp_binding { struct bfad_im_s { struct bfad_s *bfad; struct workqueue_struct *drv_workq; - char drv_workq_name[KOBJ_NAME_LEN]; struct work_struct aen_im_notify_work; }; From 4cb1b41a5ee4c513897441bda42d56673b0c6edb Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:09 -0700 Subject: [PATCH 61/86] scsi: esas2r: Simplify an alloc_ordered_workqueue() invocation Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-6-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/esas2r/esas2r.h | 1 - drivers/scsi/esas2r/esas2r_init.c | 6 ++---- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h index ed63f7a9ea54..8a133254c4f6 100644 --- a/drivers/scsi/esas2r/esas2r.h +++ b/drivers/scsi/esas2r/esas2r.h @@ -929,7 +929,6 @@ struct esas2r_adapter { struct list_head fw_event_list; spinlock_t fw_event_lock; u8 fw_events_off; /* if '1', then ignore events */ - char fw_event_q_name[ESAS2R_KOBJ_NAME_LEN]; /* * intr_mode stores the interrupt mode currently being used by this * adapter. it is based on the interrupt_mode module parameter, but diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c index ff1fa3160c61..0cea5f3d1a08 100644 --- a/drivers/scsi/esas2r/esas2r_init.c +++ b/drivers/scsi/esas2r/esas2r_init.c @@ -311,10 +311,8 @@ int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid, sema_init(&a->nvram_semaphore, 1); esas2r_fw_event_off(a); - snprintf(a->fw_event_q_name, ESAS2R_KOBJ_NAME_LEN, "esas2r/%d", - a->index); - a->fw_event_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, - a->fw_event_q_name); + a->fw_event_q = + alloc_ordered_workqueue("esas2r/%d", WQ_MEM_RECLAIM, a->index); init_waitqueue_head(&a->buffered_ioctl_waiter); init_waitqueue_head(&a->nvram_waiter); From d77381c2f62a557f630a64280ff09675128be363 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:10 -0700 Subject: [PATCH 62/86] scsi: fcoe: Simplify alloc_ordered_workqueue() invocations Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Reviewed-by: Hannes Reinecke Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-7-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/fcoe/fcoe_sysfs.c | 18 +++++------------- include/scsi/fcoe_sysfs.h | 2 -- 2 files changed, 5 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c index 06357bbf6b2c..0609ca6b9353 100644 --- a/drivers/scsi/fcoe/fcoe_sysfs.c +++ b/drivers/scsi/fcoe/fcoe_sysfs.c @@ -45,12 +45,8 @@ MODULE_PARM_DESC(fcf_dev_loss_tmo, */ #define fcoe_ctlr_id(x) \ ((x)->id) -#define fcoe_ctlr_work_q_name(x) \ - ((x)->work_q_name) #define fcoe_ctlr_work_q(x) \ ((x)->work_q) -#define fcoe_ctlr_devloss_work_q_name(x) \ - ((x)->devloss_work_q_name) #define fcoe_ctlr_devloss_work_q(x) \ ((x)->devloss_work_q) #define fcoe_ctlr_mode(x) \ @@ -797,18 +793,14 @@ struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent, ctlr->fcf_dev_loss_tmo = fcoe_fcf_dev_loss_tmo; - snprintf(ctlr->work_q_name, sizeof(ctlr->work_q_name), - "ctlr_wq_%d", ctlr->id); - ctlr->work_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, - ctlr->work_q_name); + ctlr->work_q = alloc_ordered_workqueue("ctlr_wq_%d", WQ_MEM_RECLAIM, + ctlr->id); if (!ctlr->work_q) goto out_del; - snprintf(ctlr->devloss_work_q_name, - sizeof(ctlr->devloss_work_q_name), - "ctlr_dl_wq_%d", ctlr->id); - ctlr->devloss_work_q = alloc_ordered_workqueue( - "%s", WQ_MEM_RECLAIM, ctlr->devloss_work_q_name); + ctlr->devloss_work_q = alloc_ordered_workqueue("ctlr_dl_wq_%d", + WQ_MEM_RECLAIM, + ctlr->id); if (!ctlr->devloss_work_q) goto out_del_q; diff --git a/include/scsi/fcoe_sysfs.h b/include/scsi/fcoe_sysfs.h index 4b1216de3f22..2b28a05e492b 100644 --- a/include/scsi/fcoe_sysfs.h +++ b/include/scsi/fcoe_sysfs.h @@ -50,9 +50,7 @@ struct fcoe_ctlr_device { struct fcoe_sysfs_function_template *f; struct list_head fcfs; - char work_q_name[20]; struct workqueue_struct *work_q; - char devloss_work_q_name[20]; struct workqueue_struct *devloss_work_q; struct mutex lock; From 5615cfb3cbadf7c7159c5de18e6f02ca9c6630fc Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:11 -0700 Subject: [PATCH 63/86] scsi: ibmvscsi_tgt: Simplify an alloc_workqueue() invocation Let alloc_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-8-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index 639f72f28911..16d085d56e9d 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -3425,7 +3425,6 @@ static int ibmvscsis_probe(struct vio_dev *vdev, struct scsi_info *vscsi; int rc = 0; long hrc = 0; - char wq_name[24]; vscsi = kzalloc(sizeof(*vscsi), GFP_KERNEL); if (!vscsi) { @@ -3536,8 +3535,8 @@ static int ibmvscsis_probe(struct vio_dev *vdev, init_completion(&vscsi->wait_idle); init_completion(&vscsi->unconfig); - snprintf(wq_name, 24, "ibmvscsis%s", dev_name(&vdev->dev)); - vscsi->work_q = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, wq_name); + vscsi->work_q = alloc_workqueue("ibmvscsis%s", WQ_MEM_RECLAIM, 1, + dev_name(&vdev->dev)); if (!vscsi->work_q) { rc = -ENOMEM; dev_err(&vscsi->dev, "create_workqueue failed\n"); From 1bd289620e4240ebf882e5e213ea0af200501be9 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:12 -0700 Subject: [PATCH 64/86] scsi: mpi3mr: Simplify an alloc_ordered_workqueue() invocation Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-9-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi3mr.h | 2 -- drivers/scsi/mpi3mr/mpi3mr_os.c | 4 +--- 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index dc2cdd5f0311..c1c97ed1eb38 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -1059,7 +1059,6 @@ struct scmd_priv { * @sbq_lock: Sense buffer queue lock * @sbq_host_index: Sense buffer queuehost index * @event_masks: Event mask bitmap - * @fwevt_worker_name: Firmware event worker thread name * @fwevt_worker_thread: Firmware event worker thread * @fwevt_lock: Firmware event lock * @fwevt_list: Firmware event list @@ -1240,7 +1239,6 @@ struct mpi3mr_ioc { u32 sbq_host_index; u32 event_masks[MPI3_EVENT_NOTIFY_EVENTMASK_WORDS]; - char fwevt_worker_name[MPI3MR_NAME_LENGTH]; struct workqueue_struct *fwevt_worker_thread; spinlock_t fwevt_lock; struct list_head fwevt_list; diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 69b14918de59..e18c44b53b99 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -5305,10 +5305,8 @@ mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id) else scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); - snprintf(mrioc->fwevt_worker_name, sizeof(mrioc->fwevt_worker_name), - "%s%d_fwevt_wrkr", mrioc->driver_name, mrioc->id); mrioc->fwevt_worker_thread = alloc_ordered_workqueue( - mrioc->fwevt_worker_name, 0); + "%s%d_fwevt_wrkr", 0, mrioc->driver_name, mrioc->id); if (!mrioc->fwevt_worker_thread) { ioc_err(mrioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); From b3b359ac726763ead9cee1c3674f5c50d26651c4 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:13 -0700 Subject: [PATCH 65/86] scsi: mpt3sas: Simplify an alloc_ordered_workqueue() invocation Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-10-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.h | 4 +--- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 +--- 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index fe1e96fda284..eceb5eeb4651 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1162,8 +1162,7 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc); * @fault_reset_work_q_name: fw fault work queue * @fault_reset_work_q: "" * @fault_reset_work: "" - * @firmware_event_name: fw event work queue - * @firmware_event_thread: "" + * @firmware_event_thread: fw event work queue * @fw_event_lock: * @fw_event_list: list of fw events * @current_evet: current processing firmware event @@ -1351,7 +1350,6 @@ struct MPT3SAS_ADAPTER { struct delayed_work fault_reset_work; /* fw event handler */ - char firmware_event_name[20]; struct workqueue_struct *firmware_event_thread; spinlock_t fw_event_lock; struct list_head fw_event_list; diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 97c2472cd434..728cced42b0e 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -12301,10 +12301,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); /* event thread */ - snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name), - "fw_event_%s%d", ioc->driver_name, ioc->id); ioc->firmware_event_thread = alloc_ordered_workqueue( - ioc->firmware_event_name, 0); + "fw_event_%s%d", 0, ioc->driver_name, ioc->id); if (!ioc->firmware_event_thread) { ioc_err(ioc, "failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); From c57a617fd53fae6fcfa7d1737adfee209b8051ca Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:14 -0700 Subject: [PATCH 66/86] scsi: myrb: Simplify an alloc_ordered_workqueue() invocation Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Reviewed-by: Hannes Reinecke Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-11-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/myrb.c | 6 ++---- drivers/scsi/myrb.h | 1 - 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/myrb.c b/drivers/scsi/myrb.c index 140dc0e9cead..bfc2b835e612 100644 --- a/drivers/scsi/myrb.c +++ b/drivers/scsi/myrb.c @@ -112,10 +112,8 @@ static bool myrb_create_mempools(struct pci_dev *pdev, struct myrb_hba *cb) return false; } - snprintf(cb->work_q_name, sizeof(cb->work_q_name), - "myrb_wq_%d", cb->host->host_no); - cb->work_q = - alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, cb->work_q_name); + cb->work_q = alloc_ordered_workqueue("myrb_wq_%d", WQ_MEM_RECLAIM, + cb->host->host_no); if (!cb->work_q) { dma_pool_destroy(cb->dcdb_pool); cb->dcdb_pool = NULL; diff --git a/drivers/scsi/myrb.h b/drivers/scsi/myrb.h index fb8eacfceee8..78dc4136fb10 100644 --- a/drivers/scsi/myrb.h +++ b/drivers/scsi/myrb.h @@ -712,7 +712,6 @@ struct myrb_hba { struct Scsi_Host *host; struct workqueue_struct *work_q; - char work_q_name[20]; struct delayed_work monitor_work; unsigned long primary_monitor_time; unsigned long secondary_monitor_time; From f30679166255148f7781b0726d8e1b5e22dd5b48 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:15 -0700 Subject: [PATCH 67/86] scsi: myrs: Simplify an alloc_ordered_workqueue() invocation Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Reviewed-by: Hannes Reinecke Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-12-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/myrs.c | 6 ++---- drivers/scsi/myrs.h | 1 - 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c index 8a8f26633cda..3392feb15cb4 100644 --- a/drivers/scsi/myrs.c +++ b/drivers/scsi/myrs.c @@ -2206,10 +2206,8 @@ static bool myrs_create_mempools(struct pci_dev *pdev, struct myrs_hba *cs) return false; } - snprintf(cs->work_q_name, sizeof(cs->work_q_name), - "myrs_wq_%d", shost->host_no); - cs->work_q = - alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, cs->work_q_name); + cs->work_q = alloc_ordered_workqueue("myrs_wq_%d", WQ_MEM_RECLAIM, + shost->host_no); if (!cs->work_q) { dma_pool_destroy(cs->dcdb_pool); cs->dcdb_pool = NULL; diff --git a/drivers/scsi/myrs.h b/drivers/scsi/myrs.h index 9f6696d0ddd5..e1d6b123de7b 100644 --- a/drivers/scsi/myrs.h +++ b/drivers/scsi/myrs.h @@ -904,7 +904,6 @@ struct myrs_hba { bool disable_enc_msg; struct workqueue_struct *work_q; - char work_q_name[20]; struct delayed_work monitor_work; unsigned long primary_monitor_time; unsigned long secondary_monitor_time; From 8bbe60bbd43daa215106d263538e0822c4bba172 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:16 -0700 Subject: [PATCH 68/86] scsi: qedf: Simplify alloc_workqueue() invocations Let alloc_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-13-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_main.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 119afcaf6e13..cf13148ba281 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -3372,10 +3372,8 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n", qedf->io_mempool); - sprintf(host_buf, "qedf_%u_link", - qedf->lport->host->host_no); - qedf->link_update_wq = - alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); + qedf->link_update_wq = alloc_workqueue("qedf_%u_link", WQ_MEM_RECLAIM, + 1, qedf->lport->host->host_no); INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update); INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery); INIT_DELAYED_WORK(&qedf->grcdump_work, qedf_wq_grcdump); @@ -3585,8 +3583,8 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) ether_addr_copy(params.ll2_mac_address, qedf->mac); /* Start LL2 processing thread */ - snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no); - qedf->ll2_recv_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); + qedf->ll2_recv_wq = alloc_workqueue("qedf_%d_ll2", WQ_MEM_RECLAIM, 1, + host->host_no); if (!qedf->ll2_recv_wq) { QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n"); rc = -ENOMEM; @@ -3627,9 +3625,8 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) } } - sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no); - qedf->timer_work_queue = - alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); + qedf->timer_work_queue = alloc_workqueue("qedf_%u_timer", + WQ_MEM_RECLAIM, 1, qedf->lport->host->host_no); if (!qedf->timer_work_queue) { QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer " "workqueue.\n"); From 19d7cda1c6304e032c1f7cd0ff3e6b5dc29f76dd Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:17 -0700 Subject: [PATCH 69/86] scsi: qedi: Simplify an alloc_workqueue() invocation Let alloc_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-14-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 319c1da549f7..c5aec26019d6 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -2776,9 +2776,9 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) goto free_cid_que; } - sprintf(host_buf, "qedi_ofld%d", qedi->shost->host_no); - qedi->offload_thread = - alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, host_buf); + qedi->offload_thread = alloc_workqueue("qedi_ofld%d", + WQ_MEM_RECLAIM, + 1, qedi->shost->host_no); if (!qedi->offload_thread) { QEDI_ERR(&qedi->dbg_ctx, "Unable to start offload thread!\n"); From 6411307b63286eff7c5c72a8ad64796ae8549101 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:18 -0700 Subject: [PATCH 70/86] scsi: snic: Simplify alloc_workqueue() invocations Let alloc_workqueue() format the workqueue name instead of calling snprintf() explicitly. Not setting shost->work_q_name is safe because there is no code that reads the value set by the removed code. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-15-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/snic/snic_main.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c index 2bd01eb57869..5ca8bc89dfa7 100644 --- a/drivers/scsi/snic/snic_main.c +++ b/drivers/scsi/snic/snic_main.c @@ -300,10 +300,8 @@ snic_add_host(struct Scsi_Host *shost, struct pci_dev *pdev) } SNIC_BUG_ON(shost->work_q != NULL); - snprintf(shost->work_q_name, sizeof(shost->work_q_name), "scsi_wq_%d", - shost->host_no); - shost->work_q = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, - shost->work_q_name); + shost->work_q = alloc_ordered_workqueue("scsi_wq_%d", WQ_MEM_RECLAIM, + shost->host_no); if (!shost->work_q) { SNIC_HOST_ERR(shost, "Failed to Create ScsiHost wq.\n"); From 06d53789761cad6bbbc3c00e8c96a631a41f4bf3 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:19 -0700 Subject: [PATCH 71/86] scsi: scsi_transport_fc: Simplify alloc_workqueue() invocations Let alloc_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-16-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_transport_fc.c | 11 +++-------- include/scsi/scsi_transport_fc.h | 6 ------ 2 files changed, 3 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 7d088b8da075..62ea7e44460e 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -441,18 +441,13 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev, fc_host->next_vport_number = 0; fc_host->npiv_vports_inuse = 0; - snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), - "fc_wq_%d", shost->host_no); - fc_host->work_q = alloc_workqueue("%s", 0, 0, fc_host->work_q_name); + fc_host->work_q = alloc_workqueue("fc_wq_%d", 0, 0, shost->host_no); if (!fc_host->work_q) return -ENOMEM; fc_host->dev_loss_tmo = fc_dev_loss_tmo; - snprintf(fc_host->devloss_work_q_name, - sizeof(fc_host->devloss_work_q_name), - "fc_dl_%d", shost->host_no); - fc_host->devloss_work_q = alloc_workqueue("%s", 0, 0, - fc_host->devloss_work_q_name); + fc_host->devloss_work_q = alloc_workqueue("fc_dl_%d", 0, 0, + shost->host_no); if (!fc_host->devloss_work_q) { destroy_workqueue(fc_host->work_q); fc_host->work_q = NULL; diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 4b884b8013e0..8e6c60090c62 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -575,9 +575,7 @@ struct fc_host_attrs { u16 npiv_vports_inuse; /* work queues for rport state manipulation */ - char work_q_name[20]; struct workqueue_struct *work_q; - char devloss_work_q_name[20]; struct workqueue_struct *devloss_work_q; /* bsg support */ @@ -654,12 +652,8 @@ struct fc_host_attrs { (((struct fc_host_attrs *)(x)->shost_data)->next_vport_number) #define fc_host_npiv_vports_inuse(x) \ (((struct fc_host_attrs *)(x)->shost_data)->npiv_vports_inuse) -#define fc_host_work_q_name(x) \ - (((struct fc_host_attrs *)(x)->shost_data)->work_q_name) #define fc_host_work_q(x) \ (((struct fc_host_attrs *)(x)->shost_data)->work_q) -#define fc_host_devloss_work_q_name(x) \ - (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name) #define fc_host_devloss_work_q(x) \ (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q) #define fc_host_dev_loss_tmo(x) \ From 0ef9b0186dae7039e95e9367ed1d9402a763511b Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:20 -0700 Subject: [PATCH 72/86] scsi: stex: Simplify an alloc_ordered_workqueue() invocation Let alloc_ordered_workqueue() format the workqueue name instead of calling snprintf() explicitly. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-17-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/stex.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index fbee7db4a835..0e81125df8c7 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -334,7 +334,6 @@ struct st_hba { struct st_ccb *wait_ccb; __le32 *scratch; - char work_q_name[20]; struct workqueue_struct *work_q; struct work_struct reset_work; wait_queue_head_t reset_waitq; @@ -1795,10 +1794,8 @@ static int stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) hba->pdev = pdev; init_waitqueue_head(&hba->reset_waitq); - snprintf(hba->work_q_name, sizeof(hba->work_q_name), - "stex_wq_%d", host->host_no); - hba->work_q = - alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, hba->work_q_name); + hba->work_q = alloc_ordered_workqueue("stex_wq_%d", WQ_MEM_RECLAIM, + host->host_no); if (!hba->work_q) { printk(KERN_ERR DRV_NAME "(%s): create workqueue failed\n", pci_name(pdev)); From 1aa992cbc272beceba40ae39b33b2848c228c0c9 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:21 -0700 Subject: [PATCH 73/86] scsi: ufs: Simplify alloc*_workqueue() invocation Let alloc*_workqueue() format the workqueue name instead of calling snprintf() explicitly. Reviewed-by: Manivannan Sadhasivam Reviewed-by: Peter Wang Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-18-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/ufs/core/ufshcd.c | 23 +++++++---------------- 1 file changed, 7 insertions(+), 16 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 930b15d9356b..d89b2f14e764 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -1785,8 +1785,6 @@ static void ufshcd_remove_clk_scaling_sysfs(struct ufs_hba *hba) static void ufshcd_init_clk_scaling(struct ufs_hba *hba) { - char wq_name[sizeof("ufs_clkscaling_00")]; - if (!ufshcd_is_clkscaling_supported(hba)) return; @@ -1798,10 +1796,8 @@ static void ufshcd_init_clk_scaling(struct ufs_hba *hba) INIT_WORK(&hba->clk_scaling.resume_work, ufshcd_clk_scaling_resume_work); - snprintf(wq_name, sizeof(wq_name), "ufs_clkscaling_%d", - hba->host->host_no); - hba->clk_scaling.workq = - alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, wq_name); + hba->clk_scaling.workq = alloc_ordered_workqueue( + "ufs_clkscaling_%d", WQ_MEM_RECLAIM, hba->host->host_no); hba->clk_scaling.is_initialized = true; } @@ -2125,8 +2121,6 @@ static void ufshcd_remove_clk_gating_sysfs(struct ufs_hba *hba) static void ufshcd_init_clk_gating(struct ufs_hba *hba) { - char wq_name[sizeof("ufs_clk_gating_00")]; - if (!ufshcd_is_clkgating_allowed(hba)) return; @@ -2136,10 +2130,9 @@ static void ufshcd_init_clk_gating(struct ufs_hba *hba) INIT_DELAYED_WORK(&hba->clk_gating.gate_work, ufshcd_gate_work); INIT_WORK(&hba->clk_gating.ungate_work, ufshcd_ungate_work); - snprintf(wq_name, ARRAY_SIZE(wq_name), "ufs_clk_gating_%d", - hba->host->host_no); - hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue(wq_name, - WQ_MEM_RECLAIM | WQ_HIGHPRI); + hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue( + "ufs_clk_gating_%d", WQ_MEM_RECLAIM | WQ_HIGHPRI, + hba->host->host_no); ufshcd_init_clk_gating_sysfs(hba); @@ -10376,7 +10369,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) int err; struct Scsi_Host *host = hba->host; struct device *dev = hba->dev; - char eh_wq_name[sizeof("ufs_eh_wq_00")]; /* * dev_set_drvdata() must be called before any callbacks are registered @@ -10443,9 +10435,8 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) hba->max_pwr_info.is_valid = false; /* Initialize work queues */ - snprintf(eh_wq_name, sizeof(eh_wq_name), "ufs_eh_wq_%d", - hba->host->host_no); - hba->eh_wq = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, eh_wq_name); + hba->eh_wq = alloc_ordered_workqueue("ufs_eh_wq_%d", WQ_MEM_RECLAIM, + hba->host->host_no); if (!hba->eh_wq) { dev_err(hba->dev, "%s: failed to create eh workqueue\n", __func__); From ba52850cb6b4db5f4ec4636c73d2ad85d0e9adba Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 22 Aug 2024 12:59:22 -0700 Subject: [PATCH 74/86] scsi: core: Simplify an alloc_workqueue() invocation Let alloc_workqueue() format the workqueue name. Remove the work_q_name[] member from struct Scsi_Host because it is no longer used by any SCSI driver nor by the SCSI core. Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20240822195944.654691-19-bvanassche@acm.org Signed-off-by: Martin K. Petersen --- drivers/scsi/hosts.c | 9 ++++----- include/scsi/scsi_host.h | 1 - 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 7f987335b44c..e021f1106bea 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -292,11 +292,10 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev, } if (shost->transportt->create_work_queue) { - snprintf(shost->work_q_name, sizeof(shost->work_q_name), - "scsi_wq_%d", shost->host_no); - shost->work_q = alloc_workqueue("%s", - WQ_SYSFS | __WQ_LEGACY | WQ_MEM_RECLAIM | WQ_UNBOUND, - 1, shost->work_q_name); + shost->work_q = alloc_workqueue( + "scsi_wq_%d", + WQ_SYSFS | __WQ_LEGACY | WQ_MEM_RECLAIM | WQ_UNBOUND, 1, + shost->host_no); if (!shost->work_q) { error = -EINVAL; diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 19a1c5c48935..2b4ab0369ffb 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -677,7 +677,6 @@ struct Scsi_Host { /* * Optional work queue to be utilized by the transport */ - char work_q_name[20]; struct workqueue_struct *work_q; /* From adedd0f46c923f8d63aeb42d504c82431febed31 Mon Sep 17 00:00:00 2001 From: Yue Haibing Date: Sat, 24 Aug 2024 16:47:24 +0800 Subject: [PATCH 75/86] scsi: bnx2i: Remove unused declarations Commit cf4e6363859d ("[SCSI] bnx2i: Add bnx2i iSCSI driver.") declared but never implemented these. Signed-off-by: Yue Haibing Link: https://lore.kernel.org/r/20240824084724.3647307-1-yuehaibing@huawei.com Signed-off-by: Martin K. Petersen --- drivers/scsi/bnx2i/bnx2i.h | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h index df7d04afce05..7030efee5c46 100644 --- a/drivers/scsi/bnx2i/bnx2i.h +++ b/drivers/scsi/bnx2i/bnx2i.h @@ -815,11 +815,6 @@ extern struct bnx2i_hba *get_adapter_list_head(void); struct bnx2i_conn *bnx2i_get_conn_from_id(struct bnx2i_hba *hba, u16 iscsi_cid); -int bnx2i_alloc_ep_pool(void); -void bnx2i_release_ep_pool(void); -struct bnx2i_endpoint *bnx2i_ep_ofld_list_next(struct bnx2i_hba *hba); -struct bnx2i_endpoint *bnx2i_ep_destroy_list_next(struct bnx2i_hba *hba); - struct bnx2i_hba *bnx2i_find_hba_for_cnic(struct cnic_dev *cnic); struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic); @@ -869,12 +864,6 @@ extern int bnx2i_arm_cq_event_coalescing(struct bnx2i_endpoint *ep, u8 action); extern int bnx2i_hw_ep_disconnect(struct bnx2i_endpoint *bnx2i_ep); -/* Debug related function prototypes */ -extern void bnx2i_print_pend_cmd_queue(struct bnx2i_conn *conn); -extern void bnx2i_print_active_cmd_queue(struct bnx2i_conn *conn); -extern void bnx2i_print_xmit_pdu_queue(struct bnx2i_conn *conn); -extern void bnx2i_print_recv_state(struct bnx2i_conn *conn); - extern int bnx2i_percpu_io_thread(void *arg); extern int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session, struct bnx2i_conn *bnx2i_conn, From 3e3ac9c39e1b575e970ecab90504b6cb090f6b05 Mon Sep 17 00:00:00 2001 From: Gaosheng Cui Date: Mon, 26 Aug 2024 11:20:05 +0800 Subject: [PATCH 76/86] scsi: core: Remove obsoleted declaration for scsi_driverbyte_string() scsi_driverbyte_string() has been unused since commit 54c29086195f ("scsi: core: Drop the now obsolete driver_byte definitions"). Remove it. Signed-off-by: Gaosheng Cui Link: https://lore.kernel.org/r/20240826032005.4007834-1-cuigaosheng1@huawei.com Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- include/scsi/scsi_dbg.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index 7b196d234626..bd29cdb513a5 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -24,7 +24,6 @@ extern const char *scsi_extd_sense_format(unsigned char, unsigned char, const char **); extern const char *scsi_mlreturn_string(int); extern const char *scsi_hostbyte_string(int); -extern const char *scsi_driverbyte_string(int); #else static inline bool scsi_opcode_sa_name(int cmd, int sa, @@ -76,12 +75,6 @@ scsi_hostbyte_string(int result) return NULL; } -static inline const char * -scsi_driverbyte_string(int result) -{ - return NULL; -} - #endif #endif /* _SCSI_SCSI_DBG_H */ From 0a5167e21126c4b1d35aaab64ad04ea056ec8aab Mon Sep 17 00:00:00 2001 From: "Bao D. Nguyen" Date: Tue, 27 Aug 2024 16:14:13 -0700 Subject: [PATCH 77/86] scsi: ufs: core: Remove ufshcd_urgent_bkops() ufshcd_urgent_bkops() is a wrapper function. It only calls ufshcd_bkops_ctrl(). Remove it to simplify the ufs core driver. Replace any references to ufshcd_urgent_bkops() with ufshcd_bkops_ctrl(). In addition, remove the second parameter in the ufshcd_bkops_ctrl() because the information can be retrieved from the first parameter. Signed-off-by: Bao D. Nguyen Link: https://lore.kernel.org/r/0c7f2c8d68408e39c28e3e81addce09cc0ee3969.1724800328.git.quic_nguyenb@quicinc.com Acked-by: Avri Altman Reviewed-by: Manivannan Sadhasivam Signed-off-by: Martin K. Petersen --- drivers/ufs/core/ufshcd.c | 32 +++++++------------------------- 1 file changed, 7 insertions(+), 25 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index e13b9ac145f6..8ea5a82503a9 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -5870,12 +5870,11 @@ static inline int ufshcd_get_bkops_status(struct ufs_hba *hba, u32 *status) /** * ufshcd_bkops_ctrl - control the auto bkops based on current bkops status * @hba: per-adapter instance - * @status: bkops_status value * * Read the bkops_status from the UFS device and Enable fBackgroundOpsEn * flag in the device to permit background operations if the device - * bkops_status is greater than or equal to "status" argument passed to - * this function, disable otherwise. + * bkops_status is greater than or equal to the "hba->urgent_bkops_lvl", + * disable otherwise. * * Return: 0 for success, non-zero in case of failure. * @@ -5883,11 +5882,11 @@ static inline int ufshcd_get_bkops_status(struct ufs_hba *hba, u32 *status) * to know whether auto bkops is enabled or disabled after this function * returns control to it. */ -static int ufshcd_bkops_ctrl(struct ufs_hba *hba, - enum bkops_status status) +static int ufshcd_bkops_ctrl(struct ufs_hba *hba) { - int err; + enum bkops_status status = hba->urgent_bkops_lvl; u32 curr_status = 0; + int err; err = ufshcd_get_bkops_status(hba, &curr_status); if (err) { @@ -5909,23 +5908,6 @@ static int ufshcd_bkops_ctrl(struct ufs_hba *hba, return err; } -/** - * ufshcd_urgent_bkops - handle urgent bkops exception event - * @hba: per-adapter instance - * - * Enable fBackgroundOpsEn flag in the device to permit background - * operations. - * - * If BKOPs is enabled, this function returns 0, 1 if the bkops in not enabled - * and negative error value for any other failure. - * - * Return: 0 upon success; < 0 upon failure. - */ -static int ufshcd_urgent_bkops(struct ufs_hba *hba) -{ - return ufshcd_bkops_ctrl(hba, hba->urgent_bkops_lvl); -} - static inline int ufshcd_get_ee_status(struct ufs_hba *hba, u32 *status) { return ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, @@ -9682,7 +9664,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) * allow background operations if bkops status shows * that performance might be impacted. */ - ret = ufshcd_urgent_bkops(hba); + ret = ufshcd_bkops_ctrl(hba); if (ret) { /* * If return err in suspend flow, IO will hang. @@ -9871,7 +9853,7 @@ static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) * If BKOPs operations are urgently needed at this moment then * keep auto-bkops enabled or else disable it. */ - ufshcd_urgent_bkops(hba); + ufshcd_bkops_ctrl(hba); if (hba->ee_usr_mask) ufshcd_write_ee_control(hba); From e59f43fb647733cd58191e6cfec4122f9bdd0aab Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Mon, 19 Aug 2024 21:11:43 +0200 Subject: [PATCH 78/86] scsi: qla2xxx: Remove the unused 'del_list_entry' field in struct fc_port The 'del_list_entry' field in "struct fc_port" is unused. The field was introduced in commit 2d70c103fd2a ("[SCSI] qla2xxx: Add LLD target-mode infrastructure for >= 24xx series") in 2012-05 and the last user was removed in commit 726b85487067 ("qla2xxx: Add framework for async fabric discovery") in 2017-02. Remove this unused field. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/69155321ab26c1f4d473d5bb6cd44b59b9b6a020.1724094686.git.christophe.jaillet@wanadoo.fr Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 7cf998e3cc68..15066c112817 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2621,7 +2621,6 @@ typedef struct fc_port { struct kref sess_kref; struct qla_tgt *tgt; unsigned long expires; - struct list_head del_list_entry; struct work_struct free_work; struct work_struct reg_work; uint64_t jiffies_at_registration; From d5a4b0d64242574bc12f7864809e03aa2863b83b Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Fri, 23 Aug 2024 09:59:05 +0200 Subject: [PATCH 79/86] scsi: bnx2fc: Remove some unused fields in struct bnx2fc_rport Some fields are unused in struct bnx2fc_rport. Remove them in order to save 96 bytes on a x86_64. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/42e20b159f3bbb12da7796463a521ca051bd5274.1724399924.git.christophe.jaillet@wanadoo.fr Signed-off-by: Martin K. Petersen --- drivers/scsi/bnx2fc/bnx2fc.h | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index 7e74f77da14f..6d47a4d8eed6 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -358,18 +358,12 @@ struct bnx2fc_rport { dma_addr_t lcq_dma; u32 lcq_mem_size; - void *ofld_req[4]; - dma_addr_t ofld_req_dma[4]; - void *enbl_req; - dma_addr_t enbl_req_dma; - spinlock_t tgt_lock; spinlock_t cq_lock; atomic_t num_active_ios; u32 flush_in_prog; unsigned long timestamp; unsigned long retry_delay_timestamp; - struct list_head free_task_list; struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1]; struct list_head active_cmd_queue; struct list_head els_queue; From 058311b72f54890de824b063feb603942269b732 Mon Sep 17 00:00:00 2001 From: Murthy Bhat Date: Tue, 27 Aug 2024 13:54:55 -0500 Subject: [PATCH 80/86] scsi: smartpqi: Add fw log to kdump Add controller logs to kdump. Driver allocates DMA memory and communicates this address to FW. In the event of system crash, host driver notifies the firmware about the crash and firmware posts all the necessary logs in the pre-allocated host buffer for firmware debugging. Once firmware notifies the completion of the log uploading to the host memory and host continues with the OS crash dump saving. This is a "feature" driven capability and is backward compatible with existing controller FW. Rename some prefixes for OFA (Online-Firmware Activation ofa_*) buffers to host_memory_*. So, not a lot of actual functional changes to smartpqi_init.c, mainly determining the memory size allocation. Added a function to notify the controller to copy debug data into host memory before continuing kdump. Most of the functional changes are in smartpqi_sis.c where the actual handshaking is done. Reviewed-by: Scott Benesh Reviewed-by: Mike McGowen Signed-off-by: Murthy Bhat Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240827185501.692804-2-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 32 ++- drivers/scsi/smartpqi/smartpqi_init.c | 396 +++++++++++++++----------- drivers/scsi/smartpqi/smartpqi_sis.c | 60 ++++ drivers/scsi/smartpqi/smartpqi_sis.h | 3 + 4 files changed, 306 insertions(+), 185 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index 023fbce04e7a..f493006bee9d 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -505,7 +505,7 @@ struct pqi_vendor_general_request { __le64 buffer_address; __le32 buffer_length; u8 reserved[40]; - } ofa_memory_allocation; + } host_memory_allocation; } data; }; @@ -517,21 +517,30 @@ struct pqi_vendor_general_response { u8 reserved[2]; }; -#define PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE 0 -#define PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE 1 +#define PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE 0 +#define PQI_VENDOR_GENERAL_OFA_MEMORY_UPDATE 1 +#define PQI_VENDOR_GENERAL_CTRL_LOG_MEMORY_UPDATE 2 #define PQI_OFA_VERSION 1 #define PQI_OFA_SIGNATURE "OFA_QRM" -#define PQI_OFA_MAX_SG_DESCRIPTORS 64 +#define PQI_CTRL_LOG_VERSION 1 +#define PQI_CTRL_LOG_SIGNATURE "FW_DATA" +#define PQI_HOST_MAX_SG_DESCRIPTORS 64 -struct pqi_ofa_memory { - __le64 signature; /* "OFA_QRM" */ +struct pqi_host_memory { + __le64 signature; /* "OFA_QRM", "FW_DATA", etc. */ __le16 version; /* version of this struct (1 = 1st version) */ u8 reserved[62]; __le32 bytes_allocated; /* total allocated memory in bytes */ __le16 num_memory_descriptors; u8 reserved1[2]; - struct pqi_sg_descriptor sg_descriptor[PQI_OFA_MAX_SG_DESCRIPTORS]; + struct pqi_sg_descriptor sg_descriptor[PQI_HOST_MAX_SG_DESCRIPTORS]; +}; + +struct pqi_host_memory_descriptor { + struct pqi_host_memory *host_memory; + dma_addr_t host_memory_dma_handle; + void **host_chunk_virt_address; }; struct pqi_aio_error_info { @@ -867,7 +876,8 @@ struct pqi_config_table_firmware_features { #define PQI_FIRMWARE_FEATURE_FW_TRIAGE 17 #define PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5 18 #define PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT 21 -#define PQI_FIRMWARE_FEATURE_MAXIMUM 21 +#define PQI_FIRMWARE_FEATURE_CTRL_LOGGING 22 +#define PQI_FIRMWARE_FEATURE_MAXIMUM 22 struct pqi_config_table_debug { struct pqi_config_table_section_header header; @@ -1357,6 +1367,7 @@ struct pqi_ctrl_info { u8 firmware_triage_supported : 1; u8 rpl_extended_format_4_5_supported : 1; u8 multi_lun_device_supported : 1; + u8 ctrl_logging_supported : 1; u8 enable_r1_writes : 1; u8 enable_r5_writes : 1; u8 enable_r6_writes : 1; @@ -1398,13 +1409,12 @@ struct pqi_ctrl_info { wait_queue_head_t block_requests_wait; struct mutex ofa_mutex; - struct pqi_ofa_memory *pqi_ofa_mem_virt_addr; - dma_addr_t pqi_ofa_mem_dma_handle; - void **pqi_ofa_chunk_virt_addr; struct work_struct ofa_memory_alloc_work; struct work_struct ofa_quiesce_work; u32 ofa_bytes_requested; u16 ofa_cancel_reason; + struct pqi_host_memory_descriptor ofa_memory; + struct pqi_host_memory_descriptor ctrl_log_memory; enum pqi_ctrl_removal_state ctrl_removal_state; }; diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index b5396d722d52..54f7fe843445 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -92,9 +92,9 @@ static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info, static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info); static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info); static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs); -static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info); -static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info); -static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info); +static void pqi_host_setup_buffer(struct pqi_ctrl_info *ctrl_info, struct pqi_host_memory_descriptor *host_memory_descriptor, u32 total_size, u32 min_size); +static void pqi_host_free_buffer(struct pqi_ctrl_info *ctrl_info, struct pqi_host_memory_descriptor *host_memory_descriptor); +static int pqi_host_memory_update(struct pqi_ctrl_info *ctrl_info, struct pqi_host_memory_descriptor *host_memory_descriptor, u16 function_code); static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs); static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info); @@ -3634,7 +3634,7 @@ static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info) ctrl_info->pqi_mode_enabled = false; pqi_save_ctrl_mode(ctrl_info, SIS_MODE); rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs); - pqi_ofa_free_host_buffer(ctrl_info); + pqi_host_free_buffer(ctrl_info, &ctrl_info->ofa_memory); pqi_ctrl_ofa_done(ctrl_info); dev_info(&ctrl_info->pci_dev->dev, "Online Firmware Activation: %s\n", @@ -3645,7 +3645,7 @@ static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info) "Online Firmware Activation ABORTED\n"); if (ctrl_info->soft_reset_handshake_supported) pqi_clear_soft_reset_status(ctrl_info); - pqi_ofa_free_host_buffer(ctrl_info); + pqi_host_free_buffer(ctrl_info, &ctrl_info->ofa_memory); pqi_ctrl_ofa_done(ctrl_info); pqi_ofa_ctrl_unquiesce(ctrl_info); break; @@ -3655,7 +3655,7 @@ static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info) dev_err(&ctrl_info->pci_dev->dev, "unexpected Online Firmware Activation reset status: 0x%x\n", reset_status); - pqi_ofa_free_host_buffer(ctrl_info); + pqi_host_free_buffer(ctrl_info, &ctrl_info->ofa_memory); pqi_ctrl_ofa_done(ctrl_info); pqi_ofa_ctrl_unquiesce(ctrl_info); pqi_take_ctrl_offline(ctrl_info, PQI_OFA_RESPONSE_TIMEOUT); @@ -3670,8 +3670,8 @@ static void pqi_ofa_memory_alloc_worker(struct work_struct *work) ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work); pqi_ctrl_ofa_start(ctrl_info); - pqi_ofa_setup_host_buffer(ctrl_info); - pqi_ofa_host_memory_update(ctrl_info); + pqi_host_setup_buffer(ctrl_info, &ctrl_info->ofa_memory, ctrl_info->ofa_bytes_requested, ctrl_info->ofa_bytes_requested); + pqi_host_memory_update(ctrl_info, &ctrl_info->ofa_memory, PQI_VENDOR_GENERAL_OFA_MEMORY_UPDATE); } static void pqi_ofa_quiesce_worker(struct work_struct *work) @@ -3711,7 +3711,7 @@ static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info, dev_info(&ctrl_info->pci_dev->dev, "received Online Firmware Activation cancel request: reason: %u\n", ctrl_info->ofa_cancel_reason); - pqi_ofa_free_host_buffer(ctrl_info); + pqi_host_free_buffer(ctrl_info, &ctrl_info->ofa_memory); pqi_ctrl_ofa_done(ctrl_info); break; default: @@ -7883,6 +7883,9 @@ static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info, case PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT: ctrl_info->multi_lun_device_supported = firmware_feature->enabled; break; + case PQI_FIRMWARE_FEATURE_CTRL_LOGGING: + ctrl_info->ctrl_logging_supported = firmware_feature->enabled; + break; } pqi_firmware_feature_status(ctrl_info, firmware_feature); @@ -7988,6 +7991,11 @@ static struct pqi_firmware_feature pqi_firmware_features[] = { .feature_bit = PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT, .feature_status = pqi_ctrl_update_feature_flags, }, + { + .feature_name = "Controller Data Logging", + .feature_bit = PQI_FIRMWARE_FEATURE_CTRL_LOGGING, + .feature_status = pqi_ctrl_update_feature_flags, + }, }; static void pqi_process_firmware_features( @@ -8090,6 +8098,7 @@ static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info) ctrl_info->firmware_triage_supported = false; ctrl_info->rpl_extended_format_4_5_supported = false; ctrl_info->multi_lun_device_supported = false; + ctrl_info->ctrl_logging_supported = false; } static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info) @@ -8230,6 +8239,9 @@ static void pqi_perform_lockup_action(void) } } +#define PQI_CTRL_LOG_TOTAL_SIZE (4 * 1024 * 1024) +#define PQI_CTRL_LOG_MIN_SIZE (PQI_CTRL_LOG_TOTAL_SIZE / PQI_HOST_MAX_SG_DESCRIPTORS) + static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) { int rc; @@ -8241,6 +8253,12 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) if (rc) return rc; } + if (sis_is_ctrl_logging_supported(ctrl_info)) { + sis_notify_kdump(ctrl_info); + rc = sis_wait_for_ctrl_logging_completion(ctrl_info); + if (rc) + return rc; + } sis_soft_reset(ctrl_info); ssleep(PQI_POST_RESET_DELAY_SECS); } else { @@ -8422,6 +8440,11 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) if (rc) return rc; + if (ctrl_info->ctrl_logging_supported && !reset_devices) { + pqi_host_setup_buffer(ctrl_info, &ctrl_info->ctrl_log_memory, PQI_CTRL_LOG_TOTAL_SIZE, PQI_CTRL_LOG_MIN_SIZE); + pqi_host_memory_update(ctrl_info, &ctrl_info->ctrl_log_memory, PQI_VENDOR_GENERAL_CTRL_LOG_MEMORY_UPDATE); + } + rc = pqi_get_ctrl_product_details(ctrl_info); if (rc) { dev_err(&ctrl_info->pci_dev->dev, @@ -8606,8 +8629,22 @@ static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info) return rc; } - if (pqi_ofa_in_progress(ctrl_info)) + if (pqi_ofa_in_progress(ctrl_info)) { pqi_ctrl_unblock_scan(ctrl_info); + if (ctrl_info->ctrl_logging_supported) { + if (!ctrl_info->ctrl_log_memory.host_memory) + pqi_host_setup_buffer(ctrl_info, + &ctrl_info->ctrl_log_memory, + PQI_CTRL_LOG_TOTAL_SIZE, + PQI_CTRL_LOG_MIN_SIZE); + pqi_host_memory_update(ctrl_info, + &ctrl_info->ctrl_log_memory, PQI_VENDOR_GENERAL_CTRL_LOG_MEMORY_UPDATE); + } else { + if (ctrl_info->ctrl_log_memory.host_memory) + pqi_host_free_buffer(ctrl_info, + &ctrl_info->ctrl_log_memory); + } + } pqi_scan_scsi_devices(ctrl_info); @@ -8797,6 +8834,7 @@ static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) pqi_fail_all_outstanding_requests(ctrl_info); ctrl_info->pqi_mode_enabled = false; } + pqi_host_free_buffer(ctrl_info, &ctrl_info->ctrl_log_memory); pqi_unregister_scsi(ctrl_info); if (ctrl_info->pqi_mode_enabled) pqi_revert_to_sis_mode(ctrl_info); @@ -8822,170 +8860,6 @@ static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info) pqi_ctrl_unblock_scan(ctrl_info); } -static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size) -{ - int i; - u32 sg_count; - struct device *dev; - struct pqi_ofa_memory *ofap; - struct pqi_sg_descriptor *mem_descriptor; - dma_addr_t dma_handle; - - ofap = ctrl_info->pqi_ofa_mem_virt_addr; - - sg_count = DIV_ROUND_UP(total_size, chunk_size); - if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS) - goto out; - - ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL); - if (!ctrl_info->pqi_ofa_chunk_virt_addr) - goto out; - - dev = &ctrl_info->pci_dev->dev; - - for (i = 0; i < sg_count; i++) { - ctrl_info->pqi_ofa_chunk_virt_addr[i] = - dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL); - if (!ctrl_info->pqi_ofa_chunk_virt_addr[i]) - goto out_free_chunks; - mem_descriptor = &ofap->sg_descriptor[i]; - put_unaligned_le64((u64)dma_handle, &mem_descriptor->address); - put_unaligned_le32(chunk_size, &mem_descriptor->length); - } - - put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags); - put_unaligned_le16(sg_count, &ofap->num_memory_descriptors); - put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated); - - return 0; - -out_free_chunks: - while (--i >= 0) { - mem_descriptor = &ofap->sg_descriptor[i]; - dma_free_coherent(dev, chunk_size, - ctrl_info->pqi_ofa_chunk_virt_addr[i], - get_unaligned_le64(&mem_descriptor->address)); - } - kfree(ctrl_info->pqi_ofa_chunk_virt_addr); - -out: - return -ENOMEM; -} - -static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info) -{ - u32 total_size; - u32 chunk_size; - u32 min_chunk_size; - - if (ctrl_info->ofa_bytes_requested == 0) - return 0; - - total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested); - min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS); - min_chunk_size = PAGE_ALIGN(min_chunk_size); - - for (chunk_size = total_size; chunk_size >= min_chunk_size;) { - if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0) - return 0; - chunk_size /= 2; - chunk_size = PAGE_ALIGN(chunk_size); - } - - return -ENOMEM; -} - -static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info) -{ - struct device *dev; - struct pqi_ofa_memory *ofap; - - dev = &ctrl_info->pci_dev->dev; - - ofap = dma_alloc_coherent(dev, sizeof(*ofap), - &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL); - if (!ofap) - return; - - ctrl_info->pqi_ofa_mem_virt_addr = ofap; - - if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) { - dev_err(dev, - "failed to allocate host buffer for Online Firmware Activation\n"); - dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle); - ctrl_info->pqi_ofa_mem_virt_addr = NULL; - return; - } - - put_unaligned_le16(PQI_OFA_VERSION, &ofap->version); - memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature)); -} - -static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info) -{ - unsigned int i; - struct device *dev; - struct pqi_ofa_memory *ofap; - struct pqi_sg_descriptor *mem_descriptor; - unsigned int num_memory_descriptors; - - ofap = ctrl_info->pqi_ofa_mem_virt_addr; - if (!ofap) - return; - - dev = &ctrl_info->pci_dev->dev; - - if (get_unaligned_le32(&ofap->bytes_allocated) == 0) - goto out; - - mem_descriptor = ofap->sg_descriptor; - num_memory_descriptors = - get_unaligned_le16(&ofap->num_memory_descriptors); - - for (i = 0; i < num_memory_descriptors; i++) { - dma_free_coherent(dev, - get_unaligned_le32(&mem_descriptor[i].length), - ctrl_info->pqi_ofa_chunk_virt_addr[i], - get_unaligned_le64(&mem_descriptor[i].address)); - } - kfree(ctrl_info->pqi_ofa_chunk_virt_addr); - -out: - dma_free_coherent(dev, sizeof(*ofap), ofap, - ctrl_info->pqi_ofa_mem_dma_handle); - ctrl_info->pqi_ofa_mem_virt_addr = NULL; -} - -static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info) -{ - u32 buffer_length; - struct pqi_vendor_general_request request; - struct pqi_ofa_memory *ofap; - - memset(&request, 0, sizeof(request)); - - request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; - put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, - &request.header.iu_length); - put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE, - &request.function_code); - - ofap = ctrl_info->pqi_ofa_mem_virt_addr; - - if (ofap) { - buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) + - get_unaligned_le16(&ofap->num_memory_descriptors) * - sizeof(struct pqi_sg_descriptor); - - put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle, - &request.data.ofa_memory_allocation.buffer_address); - put_unaligned_le32(buffer_length, - &request.data.ofa_memory_allocation.buffer_length); - } - - return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); -} - static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs) { ssleep(delay_secs); @@ -8993,6 +8867,180 @@ static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int de return pqi_ctrl_init_resume(ctrl_info); } +static int pqi_host_alloc_mem(struct pqi_ctrl_info *ctrl_info, + struct pqi_host_memory_descriptor *host_memory_descriptor, + u32 total_size, u32 chunk_size) +{ + int i; + u32 sg_count; + struct device *dev; + struct pqi_host_memory *host_memory; + struct pqi_sg_descriptor *mem_descriptor; + dma_addr_t dma_handle; + + sg_count = DIV_ROUND_UP(total_size, chunk_size); + if (sg_count == 0 || sg_count > PQI_HOST_MAX_SG_DESCRIPTORS) + goto out; + + host_memory_descriptor->host_chunk_virt_address = kmalloc(sg_count * sizeof(void *), GFP_KERNEL); + if (!host_memory_descriptor->host_chunk_virt_address) + goto out; + + dev = &ctrl_info->pci_dev->dev; + host_memory = host_memory_descriptor->host_memory; + + for (i = 0; i < sg_count; i++) { + host_memory_descriptor->host_chunk_virt_address[i] = dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL); + if (!host_memory_descriptor->host_chunk_virt_address[i]) + goto out_free_chunks; + mem_descriptor = &host_memory->sg_descriptor[i]; + put_unaligned_le64((u64)dma_handle, &mem_descriptor->address); + put_unaligned_le32(chunk_size, &mem_descriptor->length); + } + + put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags); + put_unaligned_le16(sg_count, &host_memory->num_memory_descriptors); + put_unaligned_le32(sg_count * chunk_size, &host_memory->bytes_allocated); + + return 0; + +out_free_chunks: + while (--i >= 0) { + mem_descriptor = &host_memory->sg_descriptor[i]; + dma_free_coherent(dev, chunk_size, + host_memory_descriptor->host_chunk_virt_address[i], + get_unaligned_le64(&mem_descriptor->address)); + } + kfree(host_memory_descriptor->host_chunk_virt_address); +out: + return -ENOMEM; +} + +static int pqi_host_alloc_buffer(struct pqi_ctrl_info *ctrl_info, + struct pqi_host_memory_descriptor *host_memory_descriptor, + u32 total_required_size, u32 min_required_size) +{ + u32 chunk_size; + u32 min_chunk_size; + + if (total_required_size == 0 || min_required_size == 0) + return 0; + + total_required_size = PAGE_ALIGN(total_required_size); + min_required_size = PAGE_ALIGN(min_required_size); + min_chunk_size = DIV_ROUND_UP(total_required_size, PQI_HOST_MAX_SG_DESCRIPTORS); + min_chunk_size = PAGE_ALIGN(min_chunk_size); + + while (total_required_size >= min_required_size) { + for (chunk_size = total_required_size; chunk_size >= min_chunk_size;) { + if (pqi_host_alloc_mem(ctrl_info, + host_memory_descriptor, total_required_size, + chunk_size) == 0) + return 0; + chunk_size /= 2; + chunk_size = PAGE_ALIGN(chunk_size); + } + total_required_size /= 2; + total_required_size = PAGE_ALIGN(total_required_size); + } + + return -ENOMEM; +} + +static void pqi_host_setup_buffer(struct pqi_ctrl_info *ctrl_info, + struct pqi_host_memory_descriptor *host_memory_descriptor, + u32 total_size, u32 min_size) +{ + struct device *dev; + struct pqi_host_memory *host_memory; + + dev = &ctrl_info->pci_dev->dev; + + host_memory = dma_alloc_coherent(dev, sizeof(*host_memory), + &host_memory_descriptor->host_memory_dma_handle, GFP_KERNEL); + if (!host_memory) + return; + + host_memory_descriptor->host_memory = host_memory; + + if (pqi_host_alloc_buffer(ctrl_info, host_memory_descriptor, + total_size, min_size) < 0) { + dev_err(dev, "failed to allocate firmware usable host buffer\n"); + dma_free_coherent(dev, sizeof(*host_memory), host_memory, + host_memory_descriptor->host_memory_dma_handle); + host_memory_descriptor->host_memory = NULL; + return; + } +} + +static void pqi_host_free_buffer(struct pqi_ctrl_info *ctrl_info, + struct pqi_host_memory_descriptor *host_memory_descriptor) +{ + unsigned int i; + struct device *dev; + struct pqi_host_memory *host_memory; + struct pqi_sg_descriptor *mem_descriptor; + unsigned int num_memory_descriptors; + + host_memory = host_memory_descriptor->host_memory; + if (!host_memory) + return; + + dev = &ctrl_info->pci_dev->dev; + + if (get_unaligned_le32(&host_memory->bytes_allocated) == 0) + goto out; + + mem_descriptor = host_memory->sg_descriptor; + num_memory_descriptors = get_unaligned_le16(&host_memory->num_memory_descriptors); + + for (i = 0; i < num_memory_descriptors; i++) { + dma_free_coherent(dev, + get_unaligned_le32(&mem_descriptor[i].length), + host_memory_descriptor->host_chunk_virt_address[i], + get_unaligned_le64(&mem_descriptor[i].address)); + } + kfree(host_memory_descriptor->host_chunk_virt_address); + +out: + dma_free_coherent(dev, sizeof(*host_memory), host_memory, + host_memory_descriptor->host_memory_dma_handle); + host_memory_descriptor->host_memory = NULL; +} + +static int pqi_host_memory_update(struct pqi_ctrl_info *ctrl_info, + struct pqi_host_memory_descriptor *host_memory_descriptor, + u16 function_code) +{ + u32 buffer_length; + struct pqi_vendor_general_request request; + struct pqi_host_memory *host_memory; + + memset(&request, 0, sizeof(request)); + + request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; + put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); + put_unaligned_le16(function_code, &request.function_code); + + host_memory = host_memory_descriptor->host_memory; + + if (host_memory) { + buffer_length = offsetof(struct pqi_host_memory, sg_descriptor) + get_unaligned_le16(&host_memory->num_memory_descriptors) * sizeof(struct pqi_sg_descriptor); + put_unaligned_le64((u64)host_memory_descriptor->host_memory_dma_handle, &request.data.host_memory_allocation.buffer_address); + put_unaligned_le32(buffer_length, &request.data.host_memory_allocation.buffer_length); + + if (function_code == PQI_VENDOR_GENERAL_OFA_MEMORY_UPDATE) { + put_unaligned_le16(PQI_OFA_VERSION, &host_memory->version); + memcpy(&host_memory->signature, PQI_OFA_SIGNATURE, sizeof(host_memory->signature)); + } else if (function_code == PQI_VENDOR_GENERAL_CTRL_LOG_MEMORY_UPDATE) { + put_unaligned_le16(PQI_CTRL_LOG_VERSION, &host_memory->version); + memcpy(&host_memory->signature, PQI_CTRL_LOG_SIGNATURE, sizeof(host_memory->signature)); + } + } + + return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); +} + static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, .status = SAM_STAT_CHECK_CONDITION, diff --git a/drivers/scsi/smartpqi/smartpqi_sis.c b/drivers/scsi/smartpqi/smartpqi_sis.c index 673437c7152b..ca1df36b83f7 100644 --- a/drivers/scsi/smartpqi/smartpqi_sis.c +++ b/drivers/scsi/smartpqi/smartpqi_sis.c @@ -29,6 +29,7 @@ #define SIS_ENABLE_INTX 0x80 #define SIS_SOFT_RESET 0x100 #define SIS_CMD_READY 0x200 +#define SIS_NOTIFY_KDUMP 0x400 #define SIS_TRIGGER_SHUTDOWN 0x800000 #define SIS_PQI_RESET_QUIESCE 0x1000000 @@ -52,6 +53,8 @@ #define SIS_BASE_STRUCT_ALIGNMENT 16 #define SIS_CTRL_KERNEL_FW_TRIAGE 0x3 +#define SIS_CTRL_KERNEL_CTRL_LOGGING 0x4 +#define SIS_CTRL_KERNEL_CTRL_LOGGING_STATUS 0x18 #define SIS_CTRL_KERNEL_UP 0x80 #define SIS_CTRL_KERNEL_PANIC 0x100 #define SIS_CTRL_READY_TIMEOUT_SECS 180 @@ -65,6 +68,13 @@ enum sis_fw_triage_status { FW_TRIAGE_COMPLETED }; +enum sis_ctrl_logging_status { + CTRL_LOGGING_NOT_STARTED = 0, + CTRL_LOGGING_STARTED, + CTRL_LOGGING_COND_INVALID, + CTRL_LOGGING_COMPLETED +}; + #pragma pack(1) /* for use with SIS_CMD_INIT_BASE_STRUCT_ADDRESS command */ @@ -442,6 +452,21 @@ static inline enum sis_fw_triage_status SIS_CTRL_KERNEL_FW_TRIAGE)); } +bool sis_is_ctrl_logging_supported(struct pqi_ctrl_info *ctrl_info) +{ + return readl(&ctrl_info->registers->sis_firmware_status) & SIS_CTRL_KERNEL_CTRL_LOGGING; +} + +void sis_notify_kdump(struct pqi_ctrl_info *ctrl_info) +{ + sis_set_doorbell_bit(ctrl_info, SIS_NOTIFY_KDUMP); +} + +static inline enum sis_ctrl_logging_status sis_read_ctrl_logging_status(struct pqi_ctrl_info *ctrl_info) +{ + return ((enum sis_ctrl_logging_status)((readl(&ctrl_info->registers->sis_firmware_status) & SIS_CTRL_KERNEL_CTRL_LOGGING_STATUS) >> 3)); +} + void sis_soft_reset(struct pqi_ctrl_info *ctrl_info) { writel(SIS_SOFT_RESET, @@ -484,6 +509,41 @@ int sis_wait_for_fw_triage_completion(struct pqi_ctrl_info *ctrl_info) return rc; } +#define SIS_CTRL_LOGGING_STATUS_TIMEOUT_SECS 180 +#define SIS_CTRL_LOGGING_STATUS_POLL_INTERVAL_SECS 1 + +int sis_wait_for_ctrl_logging_completion(struct pqi_ctrl_info *ctrl_info) +{ + int rc; + enum sis_ctrl_logging_status status; + unsigned long timeout; + + timeout = (SIS_CTRL_LOGGING_STATUS_TIMEOUT_SECS * HZ) + jiffies; + while (1) { + status = sis_read_ctrl_logging_status(ctrl_info); + if (status == CTRL_LOGGING_COND_INVALID) { + dev_err(&ctrl_info->pci_dev->dev, + "controller data logging condition invalid\n"); + rc = -EINVAL; + break; + } else if (status == CTRL_LOGGING_COMPLETED) { + rc = 0; + break; + } + + if (time_after(jiffies, timeout)) { + dev_err(&ctrl_info->pci_dev->dev, + "timed out waiting for controller data logging status\n"); + rc = -ETIMEDOUT; + break; + } + + ssleep(SIS_CTRL_LOGGING_STATUS_POLL_INTERVAL_SECS); + } + + return rc; +} + void sis_verify_structures(void) { BUILD_BUG_ON(offsetof(struct sis_base_struct, diff --git a/drivers/scsi/smartpqi/smartpqi_sis.h b/drivers/scsi/smartpqi/smartpqi_sis.h index 0c97626d87d4..7e0eac3d07de 100644 --- a/drivers/scsi/smartpqi/smartpqi_sis.h +++ b/drivers/scsi/smartpqi/smartpqi_sis.h @@ -31,6 +31,9 @@ u32 sis_read_driver_scratch(struct pqi_ctrl_info *ctrl_info); void sis_soft_reset(struct pqi_ctrl_info *ctrl_info); u32 sis_get_product_id(struct pqi_ctrl_info *ctrl_info); int sis_wait_for_fw_triage_completion(struct pqi_ctrl_info *ctrl_info); +bool sis_is_ctrl_logging_supported(struct pqi_ctrl_info *ctrl_info); +void sis_notify_kdump(struct pqi_ctrl_info *ctrl_info); +int sis_wait_for_ctrl_logging_completion(struct pqi_ctrl_info *ctrl_info); extern unsigned int sis_ctrl_ready_timeout_secs; From 4c76114932d1d6fad2e72823e7898a3c960cf2a7 Mon Sep 17 00:00:00 2001 From: Mahesh Rajashekhara Date: Tue, 27 Aug 2024 13:54:56 -0500 Subject: [PATCH 81/86] scsi: smartpqi: correct stream detection Correct stream detection by initializing the structure pqi_scsi_dev_raid_map_data to 0s. When the OS issues SCSI READ commands, the driver erroneously considers them as SCSI WRITES. If they are identified as sequential IOs, the driver then submits those requests via the RAID path instead of the AIO path. The 'is_write' flag might be set for SCSI READ commands also. The driver may interpret SCSI READ commands as SCSI WRITE commands, resulting in IOs being submitted through the RAID path. Note: This does not cause data corruption. Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Reviewed-by: Mike McGowen Signed-off-by: Mahesh Rajashekhara Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240827185501.692804-3-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 54f7fe843445..8e2e71ab49ae 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -5942,7 +5942,7 @@ static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info, int rc; struct pqi_scsi_dev *device; struct pqi_stream_data *pqi_stream_data; - struct pqi_scsi_dev_raid_map_data rmd; + struct pqi_scsi_dev_raid_map_data rmd = { 0 }; if (!ctrl_info->enable_stream_detection) return false; From 283dcc1b142ebd60786f8f5e3fbbd53a51035739 Mon Sep 17 00:00:00 2001 From: Mahesh Rajashekhara Date: Tue, 27 Aug 2024 13:54:57 -0500 Subject: [PATCH 82/86] scsi: smartpqi: add counter for parity write stream requests Add sysfs entry to check for write stream requests. Move existing raid_bypass_cnt into a structure named pqi_raid_io_stats and add member write_stream_cnt. These two counters are related because write stream detection is only checked if an I/O request is eligible for bypass (AIO). Example usage: lsscsi [15:1:0:0] disk Adaptec LOGICAL VOLUME 0129 /dev/sdae cat /sys/block/sdae/device/ssd_smart_path_enabled 1 ^ | +---- NOTE: here bypass has been enabled on device sdae To read the counter for parity write stream requests: cat /sys/block/sdae/device/write_stream_cnt 0x60cd507 Reviewed-by: Scott Benesh Reviewed-by: Mike McGowen Signed-off-by: Mahesh Rajashekhara Co-developed-by: Kevin Barnett Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240827185501.692804-4-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 7 ++- drivers/scsi/smartpqi/smartpqi_init.c | 62 +++++++++++++++++++++------ 2 files changed, 55 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index f493006bee9d..fae6db20a6e9 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -1106,6 +1106,11 @@ struct pqi_tmf_work { u8 scsi_opcode; }; +struct pqi_raid_io_stats { + u64 raid_bypass_cnt; + u64 write_stream_cnt; +}; + struct pqi_scsi_dev { int devtype; /* as reported by INQUIRY command */ u8 device_type; /* as reported by */ @@ -1168,7 +1173,7 @@ struct pqi_scsi_dev { struct pqi_stream_data stream_data[NUM_STREAMS_PER_LUN]; atomic_t scsi_cmds_outstanding[PQI_MAX_LUNS_PER_DEVICE]; - u64 __percpu *raid_bypass_cnt; + struct pqi_raid_io_stats __percpu *raid_io_stats; struct pqi_tmf_work tmf_work[PQI_MAX_LUNS_PER_DEVICE]; }; diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 8e2e71ab49ae..6a941735c982 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1508,8 +1508,8 @@ static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, if (rc) goto error; - device->raid_bypass_cnt = alloc_percpu(u64); - if (!device->raid_bypass_cnt) { + device->raid_io_stats = alloc_percpu(struct pqi_raid_io_stats); + if (!device->raid_io_stats) { rc = -ENOMEM; goto error; } @@ -2105,9 +2105,9 @@ static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, /* To prevent this from being freed later. */ new_device->raid_map = NULL; } - if (new_device->raid_bypass_enabled && existing_device->raid_bypass_cnt == NULL) { - existing_device->raid_bypass_cnt = new_device->raid_bypass_cnt; - new_device->raid_bypass_cnt = NULL; + if (new_device->raid_bypass_enabled && existing_device->raid_io_stats == NULL) { + existing_device->raid_io_stats = new_device->raid_io_stats; + new_device->raid_io_stats = NULL; } existing_device->raid_bypass_configured = new_device->raid_bypass_configured; existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled; @@ -2131,7 +2131,7 @@ static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, static inline void pqi_free_device(struct pqi_scsi_dev *device) { if (device) { - free_percpu(device->raid_bypass_cnt); + free_percpu(device->raid_io_stats); kfree(device->raid_map); kfree(device); } @@ -5984,6 +5984,7 @@ static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info, pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt; pqi_stream_data->last_accessed = jiffies; + per_cpu_ptr(device->raid_io_stats, smp_processor_id())->write_stream_cnt++; return true; } @@ -6016,7 +6017,6 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm u16 hw_queue; struct pqi_queue_group *queue_group; bool raid_bypassed; - u64 *raid_bypass_cnt; u8 lun; scmd->host_scribble = PQI_NO_COMPLETION; @@ -6063,8 +6063,7 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) { raid_bypassed = true; - raid_bypass_cnt = per_cpu_ptr(device->raid_bypass_cnt, smp_processor_id()); - (*raid_bypass_cnt)++; + per_cpu_ptr(device->raid_io_stats, smp_processor_id())->raid_bypass_cnt++; } } if (!raid_bypassed) @@ -7363,7 +7362,6 @@ static ssize_t pqi_raid_bypass_cnt_show(struct device *dev, unsigned long flags; u64 raid_bypass_cnt; int cpu; - u64 *per_cpu_bypass_cnt_ptr; sdev = to_scsi_device(dev); ctrl_info = shost_to_hba(sdev->host); @@ -7381,10 +7379,9 @@ static ssize_t pqi_raid_bypass_cnt_show(struct device *dev, raid_bypass_cnt = 0; - if (device->raid_bypass_cnt) { + if (device->raid_io_stats) { for_each_online_cpu(cpu) { - per_cpu_bypass_cnt_ptr = per_cpu_ptr(device->raid_bypass_cnt, cpu); - raid_bypass_cnt += *per_cpu_bypass_cnt_ptr; + raid_bypass_cnt += per_cpu_ptr(device->raid_io_stats, cpu)->raid_bypass_cnt; } } @@ -7472,6 +7469,43 @@ static ssize_t pqi_numa_node_show(struct device *dev, return scnprintf(buffer, PAGE_SIZE, "%d\n", ctrl_info->numa_node); } +static ssize_t pqi_write_stream_cnt_show(struct device *dev, + struct device_attribute *attr, char *buffer) +{ + struct pqi_ctrl_info *ctrl_info; + struct scsi_device *sdev; + struct pqi_scsi_dev *device; + unsigned long flags; + u64 write_stream_cnt; + int cpu; + + sdev = to_scsi_device(dev); + ctrl_info = shost_to_hba(sdev->host); + + if (pqi_ctrl_offline(ctrl_info)) + return -ENODEV; + + spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); + + device = sdev->hostdata; + if (!device) { + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + return -ENODEV; + } + + write_stream_cnt = 0; + + if (device->raid_io_stats) { + for_each_online_cpu(cpu) { + write_stream_cnt += per_cpu_ptr(device->raid_io_stats, cpu)->write_stream_cnt; + } + } + + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + + return scnprintf(buffer, PAGE_SIZE, "0x%llx\n", write_stream_cnt); +} + static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL); static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL); static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL); @@ -7482,6 +7516,7 @@ static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL); static DEVICE_ATTR(sas_ncq_prio_enable, 0644, pqi_sas_ncq_prio_enable_show, pqi_sas_ncq_prio_enable_store); static DEVICE_ATTR(numa_node, 0444, pqi_numa_node_show, NULL); +static DEVICE_ATTR(write_stream_cnt, 0444, pqi_write_stream_cnt_show, NULL); static struct attribute *pqi_sdev_attrs[] = { &dev_attr_lunid.attr, @@ -7493,6 +7528,7 @@ static struct attribute *pqi_sdev_attrs[] = { &dev_attr_raid_bypass_cnt.attr, &dev_attr_sas_ncq_prio_enable.attr, &dev_attr_numa_node.attr, + &dev_attr_write_stream_cnt.attr, NULL }; From dbc39b84540f746cc814e69b21e53e6d3e12329a Mon Sep 17 00:00:00 2001 From: David Strahan Date: Tue, 27 Aug 2024 13:54:58 -0500 Subject: [PATCH 83/86] scsi: smartpqi: add new controller PCI IDs All PCI ID entries in Hex. Add new cisco pci ids: VID / DID / SVID / SDID ---- ---- ---- ---- 9005 028f 1137 02fe 9005 028f 1137 02ff 9005 028f 1137 0300 Add new h3c pci ids: VID / DID / SVID / SDID ---- ---- ---- ---- 9005 028f 193d 0462 9005 028f 193d 8462 Add new ieit pci ids: VID / DID / SVID / SDID ---- ---- ---- ---- 9005 028f 1ff9 00a3 Reviewed-by: Scott Benesh Reviewed-by: Mike McGowen Signed-off-by: David Strahan Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240827185501.692804-5-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 6a941735c982..46bef2cf95c4 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -9548,6 +9548,10 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x152d, 0x8a37) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x193d, 0x0462) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x193d, 0x1104) @@ -9588,6 +9592,10 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x193d, 0x8461) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x193d, 0x8462) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x193d, 0xc460) @@ -10296,6 +10304,18 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x1137, 0x02fa) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1137, 0x02fe) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1137, 0x02ff) + }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1137, 0x0300) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x1ff9, 0x0045) @@ -10472,6 +10492,10 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 0x1f51, 0x1045) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + 0x1ff9, 0x00a3) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, PCI_ANY_ID, PCI_ANY_ID) From 4e0a51716dae782822b5df6c3b29cc0915a9f802 Mon Sep 17 00:00:00 2001 From: Murthy Bhat Date: Tue, 27 Aug 2024 13:54:59 -0500 Subject: [PATCH 84/86] scsi: smartpqi: fix rare system hang during LUN reset Correct a rare case where in a LUN reset occurs on a device and I/O requests for other devices persist in the driver's internal request queue. Part of a LUN reset involves waiting for our internal request queue to empty before proceeding. The internal request queue contains requests not yet sent down to the controller. We were clearing the requests queued for the LUN undergoing a reset, but not all of the queued requests. Causing a hang. For all requests in our internal request queue: Complete requests with DID_RESET for queued requests for the device undergoing a reset. Complete requests with DID_REQUEUE for all other queued requests. Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Reviewed-by: Mike McGowen Signed-off-by: Murthy Bhat Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240827185501.692804-6-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 46bef2cf95c4..d1d117d5d08d 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -6200,14 +6200,12 @@ static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info, continue; scsi_device = scmd->device->hostdata; - if (scsi_device != device) - continue; - - if ((u8)scmd->device->lun != lun) - continue; list_del(&io_request->request_list_entry); - set_host_byte(scmd, DID_RESET); + if (scsi_device == device && (u8)scmd->device->lun == lun) + set_host_byte(scmd, DID_RESET); + else + set_host_byte(scmd, DID_REQUEUE); pqi_free_io_request(io_request); scsi_dma_unmap(scmd); pqi_scsi_done(scmd); From 07dde72ff173742137546cb4e5e9264c8e1ba2ba Mon Sep 17 00:00:00 2001 From: Don Brace Date: Tue, 27 Aug 2024 13:55:00 -0500 Subject: [PATCH 85/86] scsi: smartpqi: fix volume size updates Correct logical volume size changes by moving the check for a volume rescan outside of the check for a queue depth change. Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240827185501.692804-7-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index d1d117d5d08d..0dab30753f0a 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -2303,17 +2303,23 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, * queue depth, device size. */ list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { + /* + * Check for queue depth change. + */ if (device->sdev && device->queue_depth != device->advertised_queue_depth) { device->advertised_queue_depth = device->queue_depth; scsi_change_queue_depth(device->sdev, device->advertised_queue_depth); - spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); - if (pqi_volume_rescan_needed(device)) { - device->rescan = false; - spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); - scsi_rescan_device(device->sdev); - } else { - spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); - } + } + spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); + /* + * Check for changes in the device, such as size. + */ + if (pqi_volume_rescan_needed(device)) { + device->rescan = false; + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + scsi_rescan_device(device->sdev); + } else { + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); } } From bda1c931e2993cbd43515dccec8bdd200a39cbf0 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Tue, 27 Aug 2024 13:55:01 -0500 Subject: [PATCH 86/86] scsi: smartpqi: update driver version to 2.1.30-031 Update driver version to 2.1.30-031. Reviewed-by: David Strahan Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Reviewed-by: Mike McGowen Reviewed-by: Gerry Morong Signed-off-by: Don Brace Link: https://lore.kernel.org/r/20240827185501.692804-8-don.brace@microchip.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 0dab30753f0a..7fd5a8c813dc 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -33,11 +33,11 @@ #define BUILD_TIMESTAMP #endif -#define DRIVER_VERSION "2.1.28-025" +#define DRIVER_VERSION "2.1.30-031" #define DRIVER_MAJOR 2 #define DRIVER_MINOR 1 -#define DRIVER_RELEASE 28 -#define DRIVER_REVISION 25 +#define DRIVER_RELEASE 30 +#define DRIVER_REVISION 31 #define DRIVER_NAME "Microchip SmartPQI Driver (v" \ DRIVER_VERSION BUILD_TIMESTAMP ")"