i40e: Report MFS in decimal base instead of hex

[ Upstream commit ef3c313119ea448c22da10366faa26b5b4b1a18e ]

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@criteo.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Fixes: 3a2c6ced90e1 ("i40e: Add a check to see if MFS is set")
Link: https://lore.kernel.org/r/20240423182723.740401-3-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 4c38782d95516894aa89ffa99b9f4aae0674150c..f3c1df46f699c069e8f6d005b21fd6a99b0c8e5e 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -16186,8 +16186,8 @@ 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