diff options
| author | Jitendra Bhivare <jitendra.bhivare@avagotech.com> | 2016-01-20 09:40:56 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-24 03:27:02 +0100 |
| commit | 1094cf68e801cdde7b65dc91fb8e9276af736176 (patch) | |
| tree | 674cba14cd6faffa0ecc56e9b583fa57f3fed3b8 /drivers/scsi/be2iscsi/be_main.h | |
| parent | be2iscsi: Fix return value for MCC completion (diff) | |
| download | linux-1094cf68e801cdde7b65dc91fb8e9276af736176.tar.xz linux-1094cf68e801cdde7b65dc91fb8e9276af736176.zip | |
be2iscsi: Fix IOPOLL implementation
OS not responding when running 2 port traffic on 72 CPUs system.
be2iscsi IRQs gets affined to CPU0 when irqbalancer is disabled.
be_iopoll processing completions in BLOCK_IOPOLL_SOFTIRQ hogged CPU0.
1. Use budget to exit the polling loop. beiscsi_process_cq didn't honour
it.
2. Rearming of EQ is done only after iopoll completes.
[mkp: Fixed up blk_iopoll -> irq_poll transition]
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/be2iscsi/be_main.h')
| -rw-r--r-- | drivers/scsi/be2iscsi/be_main.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h index f89861be2e39..fabade3e6607 100644 --- a/drivers/scsi/be2iscsi/be_main.h +++ b/drivers/scsi/be2iscsi/be_main.h @@ -63,6 +63,7 @@ #define BE2_SGE 32 #define BE2_DEFPDU_HDR_SZ 64 #define BE2_DEFPDU_DATA_SZ 8192 +#define BE2_MAX_NUM_CQ_PROC 512 #define MAX_CPUS 64 #define BEISCSI_MAX_NUM_CPUS 7 @@ -848,9 +849,9 @@ void beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn, void hwi_ring_cq_db(struct beiscsi_hba *phba, unsigned int id, unsigned int num_processed, - unsigned char rearm, unsigned char event); + unsigned char rearm); -unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq); +unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq, int budget); static inline bool beiscsi_error(struct beiscsi_hba *phba) { |