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IB/srp: Make login failures easier to debug

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If login fails because memory region allocation failed it can be
hard to figure out what happened. Make it easier to figure out
why login failed by logging a message if ib_alloc_mr() fails.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bart Van Assche 2016-11-21 13:57:24 -08:00 committed by Doug Ledford
parent 042dd765bd
commit 3787d9908c
1 changed files with 3 additions and 0 deletions
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3
drivers/infiniband/ulp/srp/ib_srp.c
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@ -389,6 +389,9 @@ static struct srp_fr_pool *srp_create_fr_pool(struct ib_device *device,
max_page_list_len);
if (IS_ERR(mr)) {
ret = PTR_ERR(mr);
if (ret == -ENOMEM)
pr_info("%s: ib_alloc_mr() failed. Try to reduce max_cmd_per_lun, max_sect or ch_count\n",
dev_name(&device->dev));
goto destroy_pool;
}
d->mr = mr;