diff mbox series

[net] mlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4

Message ID 35e72c97bdd3bc414fb8e4d747e5fb5d26c29658.1733237440.git.petrm@nvidia.com (mailing list archive)
State Accepted
Commit 217bbf156f93ada86b91617489e7ba8a0904233c
Delegated to: Netdev Maintainers
Headers show
Series [net] mlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4 | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
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: 3 this patch: 3
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/build_clang success Errors and warnings before: 3 this patch: 3
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 success Errors and warnings before: 304 this patch: 304
netdev/checkpatch warning WARNING: line length of 82 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-12-04--15-02 (tests: 760)

Commit Message

Petr Machata Dec. 3, 2024, 3:16 p.m. UTC 
From: Ido Schimmel <idosch@nvidia.com>

The driver is currently using an ACL key block that is not supported by
Spectrum-4. This works because the driver is only using a single field
from this key block which is located in the same offset in the
equivalent Spectrum-4 key block.

The issue was discovered when the firmware started rejecting the use of
the unsupported key block. The change has been reverted to avoid
breaking users that only update their firmware.

Nonetheless, fix the issue by using the correct key block.

Fixes: 07ff135958dd ("mlxsw: Introduce flex key elements for Spectrum-4")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
---
 .../net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c    | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Comments

patchwork-bot+netdevbpf@kernel.org Dec. 5, 2024, 3:20 a.m. UTC | #1 
Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Tue, 3 Dec 2024 16:16:05 +0100 you wrote:
> From: Ido Schimmel <idosch@nvidia.com>
> 
> The driver is currently using an ACL key block that is not supported by
> Spectrum-4. This works because the driver is only using a single field
> from this key block which is located in the same offset in the
> equivalent Spectrum-4 key block.
> 
> [...]

Here is the summary with links:
  - [net] mlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4
    https://git.kernel.org/netdev/net/c/217bbf156f93

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
index 6fe185ea6732..1850a975b380 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
@@ -324,6 +324,10 @@  static const struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_mac_5b[] =
 	MLXSW_AFK_ELEMENT_INST_EXT_U32(SRC_SYS_PORT, 0x04, 0, 9, -1, true), /* RX_ACL_SYSTEM_PORT */
 };
 
+static const struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv4_1b[] = {
+	MLXSW_AFK_ELEMENT_INST_BUF(SRC_IP_0_31, 0x04, 4),
+};
+
 static const struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv4_5b[] = {
 	MLXSW_AFK_ELEMENT_INST_U32(VIRT_ROUTER, 0x04, 20, 12),
 };
@@ -341,7 +345,7 @@  static const struct mlxsw_afk_block mlxsw_sp4_afk_blocks[] = {
 	MLXSW_AFK_BLOCK(0x14, mlxsw_sp_afk_element_info_mac_4),
 	MLXSW_AFK_BLOCK_HIGH_ENTROPY(0x1A, mlxsw_sp_afk_element_info_mac_5b),
 	MLXSW_AFK_BLOCK_HIGH_ENTROPY(0x38, mlxsw_sp_afk_element_info_ipv4_0),
-	MLXSW_AFK_BLOCK_HIGH_ENTROPY(0x39, mlxsw_sp_afk_element_info_ipv4_1),
+	MLXSW_AFK_BLOCK_HIGH_ENTROPY(0x3F, mlxsw_sp_afk_element_info_ipv4_1b),
 	MLXSW_AFK_BLOCK(0x3A, mlxsw_sp_afk_element_info_ipv4_2),
 	MLXSW_AFK_BLOCK(0x36, mlxsw_sp_afk_element_info_ipv4_5b),
 	MLXSW_AFK_BLOCK(0x40, mlxsw_sp_afk_element_info_ipv6_0),