diff mbox series

[net,6/9] octeontx2-pf: mcs: Match macsec ethertype along with DMAC

Message ID 20230423095454.21049-7-gakula@marvell.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series Macsec fixes for CN10KB | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 18 this patch: 18
netdev/cc_maintainers success CCed 9 of 9 maintainers
netdev/build_clang fail Errors and warnings before: 23 this patch: 23
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn fail Errors and warnings before: 24 this patch: 24
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 34 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Geetha sowjanya April 23, 2023, 9:54 a.m. UTC
From: Subbaraya Sundeep <sbhatta@marvell.com>

On CN10KB silicon a single hardware macsec block is
present and offloads macsec operations for all the
ethernet LMACs. TCAM match with macsec ethertype 0x88e5
alone at RX side is not sufficient to distinguish all the
macsec interfaces created on top of netdevs. Hence append
the DMAC of the macsec interface too. Otherwise the first
created macsec interface only receives all the macsec traffic.

Fixes: c54ffc73601c ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
---
 .../net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c  | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

Comments

Leon Romanovsky April 23, 2023, 4:52 p.m. UTC | #1
On Sun, Apr 23, 2023 at 03:24:51PM +0530, Geetha sowjanya wrote:
> From: Subbaraya Sundeep <sbhatta@marvell.com>
> 
> On CN10KB silicon a single hardware macsec block is
> present and offloads macsec operations for all the
> ethernet LMACs. TCAM match with macsec ethertype 0x88e5
> alone at RX side is not sufficient to distinguish all the
> macsec interfaces created on top of netdevs. Hence append
> the DMAC of the macsec interface too. Otherwise the first
> created macsec interface only receives all the macsec traffic.
> 
> Fixes: c54ffc73601c ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading")
> Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
> Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
> Signed-off-by: Geetha sowjanya <gakula@marvell.com>
> ---
>  .../net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c  | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 

Thanks,
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
index 5f4402f7b03e..f3140f466b37 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
@@ -9,6 +9,7 @@ 
 #include <net/macsec.h>
 #include "otx2_common.h"
 
+#define MCS_TCAM0_MAC_DA_MASK		GENMASK_ULL(47, 0)
 #define MCS_TCAM0_MAC_SA_MASK		GENMASK_ULL(63, 48)
 #define MCS_TCAM1_MAC_SA_MASK		GENMASK_ULL(31, 0)
 #define MCS_TCAM1_ETYPE_MASK		GENMASK_ULL(47, 32)
@@ -237,8 +238,10 @@  static int cn10k_mcs_write_rx_flowid(struct otx2_nic *pfvf,
 				     struct cn10k_mcs_rxsc *rxsc, u8 hw_secy_id)
 {
 	struct macsec_rx_sc *sw_rx_sc = rxsc->sw_rxsc;
+	struct macsec_secy *secy = rxsc->sw_secy;
 	struct mcs_flowid_entry_write_req *req;
 	struct mbox *mbox = &pfvf->mbox;
+	u64 mac_da;
 	int ret;
 
 	mutex_lock(&mbox->lock);
@@ -249,11 +252,16 @@  static int cn10k_mcs_write_rx_flowid(struct otx2_nic *pfvf,
 		goto fail;
 	}
 
+	mac_da = ether_addr_to_u64(secy->netdev->dev_addr);
+
+	req->data[0] = FIELD_PREP(MCS_TCAM0_MAC_DA_MASK, mac_da);
+	req->mask[0] = ~0ULL;
+	req->mask[0] = ~MCS_TCAM0_MAC_DA_MASK;
+
 	req->data[1] = FIELD_PREP(MCS_TCAM1_ETYPE_MASK, ETH_P_MACSEC);
 	req->mask[1] = ~0ULL;
 	req->mask[1] &= ~MCS_TCAM1_ETYPE_MASK;
 
-	req->mask[0] = ~0ULL;
 	req->mask[2] = ~0ULL;
 	req->mask[3] = ~0ULL;