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sumit.saxena@broadcom.com, Ranjan Kumar , Sreekanth Reddy Subject: [PATCH 5/6] mpi3mr: NVMe commands size greater than 8K fails Date: Tue, 28 Feb 2023 06:08:34 -0800 Message-Id: <20230228140835.4075-6-ranjan.kumar@broadcom.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20230228140835.4075-1-ranjan.kumar@broadcom.com> References: <20230228140835.4075-1-ranjan.kumar@broadcom.com> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000008c42f105f5c3234e" Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org --0000000000008c42f105f5c3234e Content-Transfer-Encoding: 8bit A wrong variable is checked while populating PRP entries in the PRP page and that results in failure .Hence 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 Signed-off-by: Sreekanth Reddy --- drivers/scsi/mpi3mr/mpi3mr_app.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c index 9baac224b213..49318ba893c8 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_app.c +++ b/drivers/scsi/mpi3mr/mpi3mr_app.c @@ -894,7 +894,7 @@ 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__); @@ -903,7 +903,7 @@ 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; } /* -- 2.31.1 --0000000000008c42f105f5c3234e Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature 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