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scsi: qla2xxx: edif: Remove old doorbell interface

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Recently driver has implemented a new doorbell mechanism via bsg.  The new
doorbell tells driver the exact buffer size application has where driver
can fill it up with events. The old doorbell guestimated application buffer
size is 256.

Remove duplicate functionality, the application has moved on to the new
doorbell interface.

Link: https://lore.kernel.org/r/20220607044627.19563-9-njavali@marvell.com
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran 2022-06-06 21:46:24 -07:00 committed by Martin K. Petersen
parent 0b3f3143d4
commit 1040e5f75d
3 changed files with 0 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/qla2xxx/qla_attr.c
View File

@ -2476,7 +2476,6 @@ static DEVICE_ATTR(port_speed, 0644, qla2x00_port_speed_show,
qla2x00_port_speed_store);
static DEVICE_ATTR(port_no, 0444, qla2x00_port_no_show, NULL);
static DEVICE_ATTR(fw_attr, 0444, qla2x00_fw_attr_show, NULL);
static DEVICE_ATTR_RO(edif_doorbell);
static struct attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version.attr,
@ -2521,7 +2520,6 @@ static struct attribute *qla2x00_host_attrs[] = {
&dev_attr_port_no.attr,
&dev_attr_fw_attr.attr,
&dev_attr_dport_diagnostics.attr,
&dev_attr_edif_doorbell.attr,
&dev_attr_mpi_pause.attr,
&dev_attr_qlini_mode.attr,
&dev_attr_ql2xiniexchg.attr,

78
drivers/scsi/qla2xxx/qla_edif.c
View File

@ -2265,84 +2265,6 @@ qla_edif_timer(scsi_qla_host_t *vha)
qla_edif_dbell_bsg_done(vha);
}
/*
* app uses separate thread to read this. It'll wait until the doorbell
* is rung by the driver or the max wait time has expired
*/
ssize_t
edif_doorbell_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct edb_node *dbnode = NULL;
struct edif_app_dbell *ap = (struct edif_app_dbell *)buf;
uint32_t dat_siz, buf_size, sz;
/* TODO: app currently hardcoded to 256. Will transition to bsg */
sz = 256;
/* stop new threads from waiting if we're not init'd */
if (DBELL_INACTIVE(vha)) {
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x09122,
"%s error - edif db not enabled\n", __func__);
return 0;
}
if (!vha->hw->flags.edif_enabled) {
/* edif not enabled */
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x09122,
"%s error - edif not enabled\n", __func__);
return -1;
}
buf_size = 0;
while ((sz - buf_size) >= sizeof(struct edb_node)) {
/* remove the next item from the doorbell list */
dat_siz = 0;
dbnode = qla_edb_getnext(vha);
if (dbnode) {
ap->event_code = dbnode->ntype;
switch (dbnode->ntype) {
case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN:
case VND_CMD_AUTH_STATE_NEEDED:
ap->port_id = dbnode->u.plogi_did;
dat_siz += sizeof(ap->port_id);
break;
case VND_CMD_AUTH_STATE_ELS_RCVD:
ap->port_id = dbnode->u.els_sid;
dat_siz += sizeof(ap->port_id);
break;
case VND_CMD_AUTH_STATE_SAUPDATE_COMPL:
ap->port_id = dbnode->u.sa_aen.port_id;
memcpy(ap->event_data, &dbnode->u,
sizeof(struct edif_sa_update_aen));
dat_siz += sizeof(struct edif_sa_update_aen);
break;
default:
/* unknown node type, rtn unknown ntype */
ap->event_code = VND_CMD_AUTH_STATE_UNDEF;
memcpy(ap->event_data, &dbnode->ntype, 4);
dat_siz += 4;
break;
}
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s Doorbell consumed : type=%d %p\n",
__func__, dbnode->ntype, dbnode);
/* we're done with the db node, so free it up */
kfree(dbnode);
} else {
break;
}
ap->event_data_size = dat_siz;
/* 8bytes = ap->event_code + ap->event_data_size */
buf_size += dat_siz + 8;
ap = (struct edif_app_dbell *)(buf + buf_size);
}
return buf_size;
}
static void qla_noop_sp_done(srb_t *sp, int res)
{
sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);

1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -990,7 +990,6 @@ fc_port_t *qla2x00_find_fcport_by_pid(scsi_qla_host_t *vha, port_id_t *id);
void qla_edb_eventcreate(scsi_qla_host_t *vha, uint32_t dbtype, uint32_t data, uint32_t data2,
fc_port_t *fcport);
void qla_edb_stop(scsi_qla_host_t *vha);
ssize_t edif_doorbell_show(struct device *dev, struct device_attribute *attr, char *buf);
int32_t qla_edif_app_mgmt(struct bsg_job *bsg_job);
void qla_enode_init(scsi_qla_host_t *vha);
void qla_enode_stop(scsi_qla_host_t *vha);