netdev - [PATCH net 2/4] i40e: Report MFS in decimal base instead of hex

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Message-ID: <20240423182723.740401-3-anthony.l.nguyen@intel.com>
Date: Tue, 23 Apr 2024 11:27:18 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Erwan Velu <e.velu@...teo.com>,
	anthony.l.nguyen@...el.com,
	Simon Horman <horms@...nel.org>,
	Tony Brelinski <tony.brelinski@...el.com>
Subject: [PATCH net 2/4] i40e: Report MFS in decimal base instead of hex

From: Erwan Velu <e.velu@...teo.com>

If the MFS is set below the default (0x2600), a warning message is
reported like the following :

	MFS for port 1 has been set below the default: 600

This message is a bit confusing as the number shown here (600) is in
fact an hexa number: 0x600 = 1536

Without any explicit "0x" prefix, this message is read like the MFS is
set to 600 bytes.

MFS, as per MTUs, are usually expressed in decimal base.

This commit reports both current and default MFS values in decimal
so it's less confusing for end-users.

A typical warning message looks like the following :

	MFS for port 1 (1536) has been set below the default (9728)

Signed-off-by: Erwan Velu <e.velu@...teo.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Tested-by: Tony Brelinski <tony.brelinski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 1792491d8d2d..ffb9f9f15c52 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -16107,8 +16107,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	val = FIELD_GET(I40E_PRTGL_SAH_MFS_MASK,
 			rd32(&pf->hw, I40E_PRTGL_SAH));
 	if (val < MAX_FRAME_SIZE_DEFAULT)
-		dev_warn(&pdev->dev, "MFS for port %x has been set below the default: %x\n",
-			 pf->hw.port, val);
+		dev_warn(&pdev->dev, "MFS for port %x (%d) has been set below the default (%d)\n",
+			 pf->hw.port, val, MAX_FRAME_SIZE_DEFAULT);
 
 	/* Add a filter to drop all Flow control frames from any VSI from being
 	 * transmitted. By doing so we stop a malicious VF from sending out
-- 
2.41.0