scsi: mpi3mr: NVMe command size greater than 8K fails

A wrong variable is checked while populating PRP entries in the PRP page
and this results in failure. No PRP entries in the PRP page were
successfully created and any NVMe Encapsulated commands with PRP of size
greater than 8K failed.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Link: https://lore.kernel.org/r/20230228140835.4075-6-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index bff6377..d10c6af 100644 (file)
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -886,7 +886,7 @@ static int mpi3mr_build_nvme_prp(struct mpi3mr_ioc *mrioc,
                         * each time through the loop.
                         */
                        *prp_entry = cpu_to_le64(dma_addr);
-                       if (*prp1_entry & sgemod_mask) {
+                       if (*prp_entry & sgemod_mask) {
                                dprint_bsg_err(mrioc,
                                    "%s: PRP address collides with SGE modifier\n",
                                    __func__);
@@ -895,7 +895,7 @@ static int mpi3mr_build_nvme_prp(struct mpi3mr_ioc *mrioc,
                        *prp_entry &= ~sgemod_mask;
                        *prp_entry |= sgemod_val;
                        prp_entry++;
-                       prp_entry_dma++;
+                       prp_entry_dma += prp_size;
                }
 
                /*