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Commit 290081b4 authored by Bart Van Assche's avatar Bart Van Assche Committed by Doug Ledford
Browse files

IB/srp: Make mapping failures easier to debug 



Make it easier to figure out what is going on if memory mapping
fails because more memory regions than mr_per_cmd are needed.

Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 3787d990

drivers/infiniband/ulp/srp/ib_srp.c

+10 −2
Original line number Diff line number Diff line
@@ -1274,8 +1274,12 @@ static int srp_map_finish_fmr(struct srp_map_state *state, 
	struct ib_pool_fmr *fmr;

	u64 io_addr = 0;



	if (state->fmr.next >= state->fmr.end)

	if (state->fmr.next >= state->fmr.end) {

		shost_printk(KERN_ERR, ch->target->scsi_host,

			     PFX "Out of MRs (mr_per_cmd = %d)\n",

			     ch->target->mr_per_cmd);

		return -ENOMEM;

	}



	WARN_ON_ONCE(!dev->use_fmr);
@@ -1331,8 +1335,12 @@ static int srp_map_finish_fr(struct srp_map_state *state, 
	u32 rkey;

	int n, err;



	if (state->fr.next >= state->fr.end)

	if (state->fr.next >= state->fr.end) {

		shost_printk(KERN_ERR, ch->target->scsi_host,

			     PFX "Out of MRs (mr_per_cmd = %d)\n",

			     ch->target->mr_per_cmd);

		return -ENOMEM;

	}



	WARN_ON_ONCE(!dev->use_fast_reg);