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ib_srpt: Set SCSI residual fields in SRP_CMD reply

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5622 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2014-06-24 13:33:23 +00:00
parent f4a38d3e6e
commit 8ffdd099e6
1 changed files with 19 additions and 1 deletions
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20
srpt/src/ib_srpt.c
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@@ -1542,8 +1542,9 @@ static int srpt_build_cmd_rsp(struct srpt_rdma_ch *ch,
int status, const u8 *sense_data,
int sense_data_len)
{
struct scst_cmd *cmd = &ioctx->scmnd;
struct srp_rsp *srp_rsp;
int max_sense_len;
int resid, max_sense_len;
/*
* The lowest bit of all SAM-3 status codes is zero (see also
@@ -1560,6 +1561,23 @@ static int srpt_build_cmd_rsp(struct srpt_rdma_ch *ch,
srp_rsp->tag = tag;
srp_rsp->status = status;
if (unlikely(scst_get_resid(cmd, &resid, NULL) && resid != 0)) {
if (scst_cmd_get_data_direction(cmd) & SCST_DATA_READ) {
if (resid > 0)
srp_rsp->flags |= SRP_RSP_FLAG_DIUNDER;
else if (resid < 0)
srp_rsp->flags |= SRP_RSP_FLAG_DIOVER;
srp_rsp->data_in_res_cnt = cpu_to_be32(abs(resid));
}
if (scst_cmd_get_data_direction(cmd) & SCST_DATA_WRITE) {
if (resid > 0)
srp_rsp->flags |= SRP_RSP_FLAG_DOUNDER;
else if (resid < 0)
srp_rsp->flags |= SRP_RSP_FLAG_DOOVER;
srp_rsp->data_out_res_cnt = cpu_to_be32(abs(resid));
}
}
if (!scst_sense_valid(sense_data))
sense_data_len = 0;
else {