diff mbox series

[net-next,v2] octeontx2-pf: mcs: Support VLAN in clear text

Message ID 1684237231-14217-1-git-send-email-sbhatta@marvell.com (mailing list archive)
State Accepted
Commit 030d71fd93b1f0fe6e844c1d790f70c80d828c79
Delegated to: Netdev Maintainers
Headers show
Series [net-next,v2] octeontx2-pf: mcs: Support VLAN in clear text | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/cc_maintainers success CCed 9 of 9 maintainers
netdev/build_clang success Errors and warnings before: 8 this patch: 8
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 No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 20 this patch: 20
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 32 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Subbaraya Sundeep May 16, 2023, 11:40 a.m. UTC 
Detect whether macsec secy is running on top of VLAN
which implies transmitting VLAN tag in clear text before
macsec SecTag. In this case configure hardware to insert
SecTag after VLAN tag.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
---
v2:
 Arranged variable tag_offset in reverse christmas tree order

 drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 8 ++++++--
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h  | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org May 17, 2023, 8:10 a.m. UTC | #1 
Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@davemloft.net>:

On Tue, 16 May 2023 17:10:31 +0530 you wrote:
> Detect whether macsec secy is running on top of VLAN
> which implies transmitting VLAN tag in clear text before
> macsec SecTag. In this case configure hardware to insert
> SecTag after VLAN tag.
> 
> Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
> Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
> 
> [...]

Here is the summary with links:
  - [net-next,v2] octeontx2-pf: mcs: Support VLAN in clear text
    https://git.kernel.org/netdev/net-next/c/030d71fd93b1

You are awesome, thank you!
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 b59532c..6e2fb24 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
@@ -426,13 +426,16 @@  static int cn10k_mcs_write_tx_secy(struct otx2_nic *pfvf,
 	struct mcs_secy_plcy_write_req *req;
 	struct mbox *mbox = &pfvf->mbox;
 	struct macsec_tx_sc *sw_tx_sc;
-	/* Insert SecTag after 12 bytes (DA+SA)*/
-	u8 tag_offset = 12;
 	u8 sectag_tci = 0;
+	u8 tag_offset;
 	u64 policy;
 	u8 cipher;
 	int ret;
 
+	/* Insert SecTag after 12 bytes (DA+SA) or 16 bytes
+	 * if VLAN tag needs to be sent in clear text.
+	 */
+	tag_offset = txsc->vlan_dev ? 16 : 12;
 	sw_tx_sc = &secy->tx_sc;
 
 	mutex_lock(&mbox->lock);
@@ -1163,6 +1166,7 @@  static int cn10k_mdo_add_secy(struct macsec_context *ctx)
 	txsc->encoding_sa = secy->tx_sc.encoding_sa;
 	txsc->last_validate_frames = secy->validate_frames;
 	txsc->last_replay_protect = secy->replay_protect;
+	txsc->vlan_dev = is_vlan_dev(ctx->netdev);
 
 	list_add(&txsc->entry, &cfg->txsc_list);
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index 0f2b2a9..b2267c8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -419,6 +419,7 @@  struct cn10k_mcs_txsc {
 	u8 encoding_sa;
 	u8 salt[CN10K_MCS_SA_PER_SC][MACSEC_SALT_LEN];
 	ssci_t ssci[CN10K_MCS_SA_PER_SC];
+	bool vlan_dev; /* macsec running on VLAN ? */
 };
 
 struct cn10k_mcs_rxsc {