[PATCH net 0/2][pull request] Intel Wired LAN Driver Updates 2023-12-13 (ice, i40e)

[PATCH net 0/2][pull request] Intel Wired LAN Driver Updates 2023-12-13 (ice, i40e)

[Tony Nguyen]

This series contains updates to ice and i40e drivers.

Michal Schmidt prevents possible out-of-bounds access for ice.

Ivan Vecera corrects value for MDIO clause 45 on i40e.

The following are changes since commit 810c38a369a0a0ce625b5c12169abce1dd9ccd53:
  net/rose: Fix Use-After-Free in rose_ioctl
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue 100GbE

Ivan Vecera (1):
  i40e: Fix ST code value for Clause 45

Michal Schmidt (1):
  ice: fix theoretical out-of-bounds access in ethtool link modes

 drivers/net/ethernet/intel/i40e/i40e_register.h | 2 +-
 drivers/net/ethernet/intel/i40e/i40e_type.h     | 4 ++--
 drivers/net/ethernet/intel/ice/ice_ethtool.c    | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

-- 
2.41.0

[PATCH net 1/2] ice: fix theoretical out-of-bounds access in ethtool link modes

[Tony Nguyen]

From: Michal Schmidt <mschmidt@redhat.com>

To map phy types reported by the hardware to ethtool link mode bits,
ice uses two lookup tables (phy_type_low_lkup, phy_type_high_lkup).
The "low" table has 64 elements to cover every possible bit the hardware
may report, but the "high" table has only 13. If the hardware reports a
higher bit in phy_types_high, the driver would access memory beyond the
lookup table's end.

Instead of iterating through all 64 bits of phy_types_{low,high}, use
the sizes of the respective lookup tables.

Fixes: 9136e1f1e5c3 ("ice: refactor PHY type to ethtool link mode")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_ethtool.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index a34083567e6f..bde9bc74f928 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -1850,14 +1850,14 @@ ice_phy_type_to_ethtool(struct net_device *netdev,
 	linkmode_zero(ks->link_modes.supported);
 	linkmode_zero(ks->link_modes.advertising);
 
-	for (i = 0; i < BITS_PER_TYPE(u64); i++) {
+	for (i = 0; i < ARRAY_SIZE(phy_type_low_lkup); i++) {
 		if (phy_types_low & BIT_ULL(i))
 			ice_linkmode_set_bit(&phy_type_low_lkup[i], ks,
 					     req_speeds, advert_phy_type_lo,
 					     i);
 	}
 
-	for (i = 0; i < BITS_PER_TYPE(u64); i++) {
+	for (i = 0; i < ARRAY_SIZE(phy_type_high_lkup); i++) {
 		if (phy_types_high & BIT_ULL(i))
 			ice_linkmode_set_bit(&phy_type_high_lkup[i], ks,
 					     req_speeds, advert_phy_type_hi,
-- 
2.41.0

[PATCH net 2/2] i40e: Fix ST code value for Clause 45

[Tony Nguyen]

From: Ivan Vecera <ivecera@redhat.com>

ST code value for clause 45 that has been changed by
commit 8196b5fd6c73 ("i40e: Refactor I40E_MDIO_CLAUSE* macros")
is currently wrong.

The mentioned commit refactored ..MDIO_CLAUSE??_STCODE_MASK so
their value is the same for both clauses. The value is correct
for clause 22 but not for clause 45.

Fix the issue by adding a parameter to I40E_GLGEN_MSCA_STCODE_MASK
macro that specifies required value.

Fixes: 8196b5fd6c73 ("i40e: Refactor I40E_MDIO_CLAUSE* macros")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_register.h | 2 +-
 drivers/net/ethernet/intel/i40e/i40e_type.h     | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_register.h b/drivers/net/ethernet/intel/i40e/i40e_register.h
index f408fcf23ce8..f6671ac79735 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_register.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_register.h
@@ -207,7 +207,7 @@
 #define I40E_GLGEN_MSCA_OPCODE_SHIFT 26
 #define I40E_GLGEN_MSCA_OPCODE_MASK(_i) I40E_MASK(_i, I40E_GLGEN_MSCA_OPCODE_SHIFT)
 #define I40E_GLGEN_MSCA_STCODE_SHIFT 28
-#define I40E_GLGEN_MSCA_STCODE_MASK I40E_MASK(0x1, I40E_GLGEN_MSCA_STCODE_SHIFT)
+#define I40E_GLGEN_MSCA_STCODE_MASK(_i) I40E_MASK(_i, I40E_GLGEN_MSCA_STCODE_SHIFT)
 #define I40E_GLGEN_MSCA_MDICMD_SHIFT 30
 #define I40E_GLGEN_MSCA_MDICMD_MASK I40E_MASK(0x1, I40E_GLGEN_MSCA_MDICMD_SHIFT)
 #define I40E_GLGEN_MSCA_MDIINPROGEN_SHIFT 31
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index aff6dc6afbe2..f95bc2a4a838 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -37,11 +37,11 @@ typedef void (*I40E_ADMINQ_CALLBACK)(struct i40e_hw *, struct i40e_aq_desc *);
 #define I40E_QTX_CTL_VM_QUEUE	0x1
 #define I40E_QTX_CTL_PF_QUEUE	0x2
 
-#define I40E_MDIO_CLAUSE22_STCODE_MASK		I40E_GLGEN_MSCA_STCODE_MASK
+#define I40E_MDIO_CLAUSE22_STCODE_MASK		I40E_GLGEN_MSCA_STCODE_MASK(1)
 #define I40E_MDIO_CLAUSE22_OPCODE_WRITE_MASK	I40E_GLGEN_MSCA_OPCODE_MASK(1)
 #define I40E_MDIO_CLAUSE22_OPCODE_READ_MASK	I40E_GLGEN_MSCA_OPCODE_MASK(2)
 
-#define I40E_MDIO_CLAUSE45_STCODE_MASK		I40E_GLGEN_MSCA_STCODE_MASK
+#define I40E_MDIO_CLAUSE45_STCODE_MASK		I40E_GLGEN_MSCA_STCODE_MASK(0)
 #define I40E_MDIO_CLAUSE45_OPCODE_ADDRESS_MASK	I40E_GLGEN_MSCA_OPCODE_MASK(0)
 #define I40E_MDIO_CLAUSE45_OPCODE_WRITE_MASK	I40E_GLGEN_MSCA_OPCODE_MASK(1)
 #define I40E_MDIO_CLAUSE45_OPCODE_READ_MASK	I40E_GLGEN_MSCA_OPCODE_MASK(3)
-- 
2.41.0

Re: [PATCH net 0/2][pull request] Intel Wired LAN Driver Updates 2023-12-13 (ice, i40e)

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net.git (main)
by Tony Nguyen <anthony.l.nguyen@intel.com>:

On Wed, 13 Dec 2023 14:08:24 -0800 you wrote:
> This series contains updates to ice and i40e drivers.
> 
> Michal Schmidt prevents possible out-of-bounds access for ice.
> 
> Ivan Vecera corrects value for MDIO clause 45 on i40e.
> 
> The following are changes since commit 810c38a369a0a0ce625b5c12169abce1dd9ccd53:
>   net/rose: Fix Use-After-Free in rose_ioctl
> and are available in the git repository at:
>   git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue 100GbE
> 
> [...]

Here is the summary with links:
  - [net,1/2] ice: fix theoretical out-of-bounds access in ethtool link modes
    https://git.kernel.org/netdev/net/c/91f9181c7381
  - [net,2/2] i40e: Fix ST code value for Clause 45
    https://git.kernel.org/netdev/net/c/9b3daf2b0443

You are awesome, thank you!
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