Re: [PATCH] RDMA/srpt: Report the SCSI residual to the initiator

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On 11/4/19 3:10 AM, Honggang LI wrote:
On Tue, Oct 29, 2019 at 04:02:57PM -0700, Bart Van Assche wrote:
The code added by this patch is similar to the code that already exists
in ibmvscsis_determine_resid(). This patch has been tested by running
the following command:

strace -f sg_raw -r 1k /dev/sdb 12 00 00 00 60 00 -o inquiry.bin |&
     grep resid=

Cc: Honggang LI <honli@xxxxxxxxxx>
Cc: Laurence Oberman <loberman@xxxxxxxxxx>
Fixes: a42d985bd5b2 ("ib_srpt: Initial SRP Target merge for v3.3-rc1")
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
  drivers/infiniband/ulp/srpt/ib_srpt.c | 24 ++++++++++++++++++++++++
  1 file changed, 24 insertions(+)

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index a278e76b9e02..c9972b686c27 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1362,9 +1362,11 @@ static int srpt_build_cmd_rsp(struct srpt_rdma_ch *ch,
  			      struct srpt_send_ioctx *ioctx, u64 tag,
  			      int status)
  {
+	struct se_cmd *cmd = &ioctx->cmd;
  	struct srp_rsp *srp_rsp;
  	const u8 *sense_data;
  	int sense_data_len, max_sense_len;
+	int resid = cmd->residual_count;
         ^^^
Should be u32?	

Since se_cmd.residual_count has been declared as u32 it's probably better to declare this variable as u32 too. I will make that change and post a v2.

Thanks,

Bart.





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