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iscsi-target: Fix SNACK Type 1 + BegRun=0 handling

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This patch fixes Status SNACK handling of BegRun=0 to allow
for all unacknowledged respones to be resent, instead of
always assuming that BegRun would be an explicit value less
than the current ExpStatSN.

Reported-by: santosh kulkarni <santosh.kulkarni@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2014-02-03 12:55:42 -08:00
parent 6a16d7be93
commit 752d86805b
1 changed files with 3 additions and 1 deletions
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4
drivers/target/iscsi/iscsi_target_erl1.c
View file

@ -507,7 +507,9 @@ int iscsit_handle_status_snack(
u32 last_statsn;
int found_cmd;
if (conn->exp_statsn > begrun) {
if (!begrun) {
begrun = conn->exp_statsn;
} else if (conn->exp_statsn > begrun) {
pr_err("Got Status SNACK Begrun: 0x%08x, RunLength:"
" 0x%08x but already got ExpStatSN: 0x%08x on CID:"
" %hu.\n", begrun, runlength, conn->exp_statsn,