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 d01338a9bbaf4f204f7e87d1d2959512c6642bcc..35a903f6df21513605ec2f0ab3722fb88a93b778 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -15488,8 +15488,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        val = (rd32(&pf->hw, I40E_PRTGL_SAH) &
               I40E_PRTGL_SAH_MFS_MASK) >> I40E_PRTGL_SAH_MFS_SHIFT;
        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