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From: Dheeraj Reddy Jonnalagadda <dheeraj.linuxdev@gmail.com>
To: anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com,
	piotr.kwapulinski@intel.com
Cc: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com,
	kuba@kernel.org, pabeni@redhat.com,
	michal.swiatkowski@linux.intel.com,
	intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Dheeraj Reddy Jonnalagadda <dheeraj.linuxdev@gmail.com>
Subject: [PATCH v2 net-next] ixgbe: Fix endian handling for ACI descriptor registers
Date: Wed, 15 Jan 2025 09:11:17 +0530	[thread overview]
Message-ID: <20250115034117.172999-1-dheeraj.linuxdev@gmail.com> (raw)

The ixgbe driver was missing proper endian conversion for ACI descriptor
register operations. Add the necessary conversions when reading and
writing to the registers.

Fixes: 46761fd52a88 ("ixgbe: Add support for E610 FW Admin Command Interface")
Closes: https://scan7.scan.coverity.com/#/project-view/52337/11354?selectedIssue=1602757
Signed-off-by: Dheeraj Reddy Jonnalagadda <dheeraj.linuxdev@gmail.com>
---
Changelog

v2:
	- Updated the patch to include suggested fix
	- Updated the commit message to describe the issue

 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
index 683c668672d6..3b9017e72d0e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
@@ -113,7 +113,7 @@ static int ixgbe_aci_send_cmd_execute(struct ixgbe_hw *hw,
 
 	/* Descriptor is written to specific registers */
 	for (i = 0; i < IXGBE_ACI_DESC_SIZE_IN_DWORDS; i++)
-		IXGBE_WRITE_REG(hw, IXGBE_PF_HIDA(i), raw_desc[i]);
+		IXGBE_WRITE_REG(hw, IXGBE_PF_HIDA(i), cpu_to_le32(raw_desc[i]));
 
 	/* SW has to set PF_HICR.C bit and clear PF_HICR.SV and
 	 * PF_HICR_EV
@@ -145,7 +145,7 @@ static int ixgbe_aci_send_cmd_execute(struct ixgbe_hw *hw,
 	if ((hicr & IXGBE_PF_HICR_SV)) {
 		for (i = 0; i < IXGBE_ACI_DESC_SIZE_IN_DWORDS; i++) {
 			raw_desc[i] = IXGBE_READ_REG(hw, IXGBE_PF_HIDA(i));
-			raw_desc[i] = raw_desc[i];
+			raw_desc[i] = le32_to_cpu(raw_desc[i]);
 		}
 	}
 
@@ -153,7 +153,7 @@ static int ixgbe_aci_send_cmd_execute(struct ixgbe_hw *hw,
 	if ((hicr & IXGBE_PF_HICR_EV) && !(hicr & IXGBE_PF_HICR_C)) {
 		for (i = 0; i < IXGBE_ACI_DESC_SIZE_IN_DWORDS; i++) {
 			raw_desc[i] = IXGBE_READ_REG(hw, IXGBE_PF_HIDA_2(i));
-			raw_desc[i] = raw_desc[i];
+			raw_desc[i] = le32_to_cpu(raw_desc[i]);
 		}
 	}
 
-- 
2.34.1


             reply	other threads:[~2025-01-15  3:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-15  3:41 Dheeraj Reddy Jonnalagadda [this message]
2025-01-15  5:55 ` [PATCH v2 net-next] ixgbe: Fix endian handling for ACI descriptor registers Michal Swiatkowski
2025-01-15 11:39 ` Kwapulinski, Piotr
2025-01-16 16:21 ` Simon Horman
2025-01-17 10:01   ` Przemek Kitszel
2025-01-17 18:09     ` Simon Horman
2025-01-20 14:48       ` Przemek Kitszel
2025-01-21 13:50         ` Dheeraj Reddy Jonnalagadda
2025-01-27 11:30           ` Przemek Kitszel
2025-01-18 15:05 ` kernel test robot

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