From 18244e9445fef9eef7f3afd3b70a42b87be0f8fd Mon Sep 17 00:00:00 2001 From: Satish Kharat Date: Mon, 14 Jan 2019 17:09:29 -0800 Subject: scsi: fnic: Impose upper limit on max. # of CQs processed per intr Impose an upper limit on the max number of CQ entries (corresponding to the copy wq) processed in an interrupt. Use module parameter to set the limit. Signed-off-by: Satish Kharat Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_main.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/scsi/fnic/fnic_main.c') diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 25e0414b6cb0..1433ba94ea71 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -69,6 +69,11 @@ unsigned int fnic_log_level; module_param(fnic_log_level, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels"); + +unsigned int io_completions = FNIC_DFLT_IO_COMPLETIONS; +module_param(io_completions, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(io_completions, "Max CQ entries to process at a time"); + unsigned int fnic_trace_max_pages = 16; module_param(fnic_trace_max_pages, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(fnic_trace_max_pages, "Total allocated memory pages " @@ -503,7 +508,7 @@ static int fnic_cleanup(struct fnic *fnic) } /* Clean up completed IOs and FCS frames */ - fnic_wq_copy_cmpl_handler(fnic, -1); + fnic_wq_copy_cmpl_handler(fnic, io_completions); fnic_wq_cmpl_handler(fnic, -1); fnic_rq_cmpl_handler(fnic, -1); -- cgit v1.2.3