Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-12 08:48:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

net: thunderx: Set CQ timer threshold properly

Browse Source 
Properly set CQ timer threshold and also set it to 2us.
With previous incorrect settings it was set to 0.5us which is too less.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sunil Goutham 2015-12-02 15:36:15 +05:30 committed by David S. Miller
parent a7b1f535a8
commit 006394a7cb
3 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/ethernet/cavium/thunder/nic.h
View File

@ -120,10 +120,9 @@
* Calculated for SCLK of 700Mhz * Calculated for SCLK of 700Mhz
* value written should be a 1/16th of what is expected * value written should be a 1/16th of what is expected
* *
* 1 tick per 0.05usec = value of 2.2 * 1 tick per 0.025usec
* This 10% would be covered in CQ timer thresh value
*/ */
#define NICPF_CLK_PER_INT_TICK 2 #define NICPF_CLK_PER_INT_TICK 1
/* Time to wait before we decide that a SQ is stuck. /* Time to wait before we decide that a SQ is stuck.
* *

2
drivers/net/ethernet/cavium/thunder/nicvf_queues.c
View File

@ -592,7 +592,7 @@ void nicvf_cmp_queue_config(struct nicvf *nic, struct queue_set *qs,
/* Set threshold value for interrupt generation */ /* Set threshold value for interrupt generation */
nicvf_queue_reg_write(nic, NIC_QSET_CQ_0_7_THRESH, qidx, cq->thresh); nicvf_queue_reg_write(nic, NIC_QSET_CQ_0_7_THRESH, qidx, cq->thresh);
nicvf_queue_reg_write(nic, NIC_QSET_CQ_0_7_CFG2, nicvf_queue_reg_write(nic, NIC_QSET_CQ_0_7_CFG2,
qidx, nic->cq_coalesce_usecs); qidx, CMP_QUEUE_TIMER_THRESH);
} }
/* Configures transmit queue */ /* Configures transmit queue */

2
drivers/net/ethernet/cavium/thunder/nicvf_queues.h
View File

@ -76,7 +76,7 @@
#define CMP_QSIZE CMP_QUEUE_SIZE2 #define CMP_QSIZE CMP_QUEUE_SIZE2
#define CMP_QUEUE_LEN (1ULL << (CMP_QSIZE + 10)) #define CMP_QUEUE_LEN (1ULL << (CMP_QSIZE + 10))
#define CMP_QUEUE_CQE_THRESH 0 #define CMP_QUEUE_CQE_THRESH 0
#define CMP_QUEUE_TIMER_THRESH 220 /* 10usec */ #define CMP_QUEUE_TIMER_THRESH 80 /* ~2usec */
#define RBDR_SIZE RBDR_SIZE0 #define RBDR_SIZE RBDR_SIZE0
#define RCV_BUF_COUNT (1ULL << (RBDR_SIZE + 13)) #define RCV_BUF_COUNT (1ULL << (RBDR_SIZE + 13))