From 1ba0158fa66b5b2c597a748f87be1650c9960ccc Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Mon, 22 Aug 2016 10:54:11 +0200
Subject: [PATCH] target/tcm_fc: use CPU affinity for responses
The libfc stack assigns exchange IDs based on the CPU the request
was received on, so we need to send the responses via the same CPU.
Otherwise the send logic gets confuses and responses will be delayed,
causing exchange timeouts on the initiator side.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
drivers/target/tcm_fc/tfc_cmd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 36f08644250c2d..ff5de9a96643f9 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -572,7 +572,7 @@ static void ft_send_work(struct work_struct *work)
if (target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, fcp->fc_cdb,
&cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun),
ntohl(fcp->fc_dl), task_attr, data_dir,
- TARGET_SCF_ACK_KREF))
+ TARGET_SCF_ACK_KREF | TARGET_SCF_USE_CPUID))
goto err;
pr_debug("r_ctl %x target_submit_cmd %p\n", fh->fh_r_ctl, cmd);
--
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