Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.18 413/879] scsi: lpfc: Fix dmabuf ptr assignment in lpfc_ct_reject_event() | Date | Tue, 7 Jun 2022 18:58:51 +0200 |
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From: James Smart <jsmart2021@gmail.com>
[ Upstream commit 596fc8adb171dce3751a359018e2ade612af8d97 ]
Upon driver receipt of a CT cmd for type = 0xFA (Management Server) and subtype = 0x11 (Fabric Device Management Interface), the driver is responding with garbage CT cmd data when it should send a properly formed RJT.
The __lpfc_prep_xmit_seq64_s4() routine was using the wrong buffer for the reject.
Fix by converting the routine to use the buffer specified in the bde within the wqe rather than the ill-set bmp element.
Link: https://lore.kernel.org/r/20220506035519.50908-6-jsmart2021@gmail.com Fixes: 61910d6a5243 ("scsi: lpfc: SLI path split: Refactor CT paths") Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/scsi/lpfc/lpfc_sli.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index c307f551d114..331241a71452 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -10800,24 +10800,15 @@ __lpfc_sli_prep_xmit_seq64_s4(struct lpfc_iocbq *cmdiocbq, { union lpfc_wqe128 *wqe; struct ulp_bde64 *bpl; - struct ulp_bde64_le *bde; wqe = &cmdiocbq->wqe; memset(wqe, 0, sizeof(*wqe)); /* Words 0 - 2 */ bpl = (struct ulp_bde64 *)bmp->virt; - if (cmdiocbq->cmd_flag & (LPFC_IO_LIBDFC | LPFC_IO_LOOPBACK)) { - wqe->xmit_sequence.bde.addrHigh = bpl->addrHigh; - wqe->xmit_sequence.bde.addrLow = bpl->addrLow; - wqe->xmit_sequence.bde.tus.w = bpl->tus.w; - } else { - bde = (struct ulp_bde64_le *)&wqe->xmit_sequence.bde; - bde->addr_low = cpu_to_le32(putPaddrLow(bmp->phys)); - bde->addr_high = cpu_to_le32(putPaddrHigh(bmp->phys)); - bde->type_size = cpu_to_le32(bpl->tus.f.bdeSize); - bde->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); - } + wqe->xmit_sequence.bde.addrHigh = bpl->addrHigh; + wqe->xmit_sequence.bde.addrLow = bpl->addrLow; + wqe->xmit_sequence.bde.tus.w = bpl->tus.w; /* Word 5 */ bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, last_seq); -- 2.35.1
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