This is a note to let you know that I've just added the patch titled
octeontx2-af: Fix mapping for NIX block from CGX connection
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
octeontx2-af-fix-mapping-for-nix-block-from-cgx-conn.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bb16ae2faa353f02be59aff76b3e99415779429e
Author: Hariprasad Kelam <hkelam@xxxxxxxxxxx>
Date: Fri Jun 30 11:58:43 2023 +0530
octeontx2-af: Fix mapping for NIX block from CGX connection
[ Upstream commit 2e7bc57b976bb016c6569a54d95c1b8d88f9450a ]
Firmware configures NIX block mapping for all MAC blocks.
The current implementation reads the configuration and
creates the mapping between RVU PF and NIX blocks. But
this configuration is only valid for silicons that support
multiple blocks. For all other silicons, all MAC blocks
map to NIX0.
This patch corrects the mapping by adding a check for the same.
Fixes: c5a73b632b90 ("octeontx2-af: Map NIX block from CGX connection")
Signed-off-by: Hariprasad Kelam <hkelam@xxxxxxxxxxx>
Signed-off-by: Sunil Goutham <sgoutham@xxxxxxxxxxx>
Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index fc6d785b98ddd..ec9a291e866c7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -20,6 +20,7 @@
#define PCI_DEVID_OCTEONTX2_RVU_AF 0xA065
/* Subsystem Device ID */
+#define PCI_SUBSYS_DEVID_98XX 0xB100
#define PCI_SUBSYS_DEVID_96XX 0xB200
/* PCI BAR nos */
@@ -403,6 +404,16 @@ static inline bool is_rvu_96xx_B0(struct rvu *rvu)
(pdev->subsystem_device == PCI_SUBSYS_DEVID_96XX);
}
+static inline bool is_rvu_supports_nix1(struct rvu *rvu)
+{
+ struct pci_dev *pdev = rvu->pdev;
+
+ if (pdev->subsystem_device == PCI_SUBSYS_DEVID_98XX)
+ return true;
+
+ return false;
+}
+
/* Function Prototypes
* RVU
*/
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index 6c6b411e78fd8..83743e15326d7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -84,7 +84,7 @@ static void rvu_map_cgx_nix_block(struct rvu *rvu, int pf,
p2x = cgx_lmac_get_p2x(cgx_id, lmac_id);
/* Firmware sets P2X_SELECT as either NIX0 or NIX1 */
pfvf->nix_blkaddr = BLKADDR_NIX0;
- if (p2x == CMR_P2X_SEL_NIX1)
+ if (is_rvu_supports_nix1(rvu) && p2x == CMR_P2X_SEL_NIX1)
pfvf->nix_blkaddr = BLKADDR_NIX1;
}
