netdev - [PATCH net-next 1/4] net: phy: sfp: Do not reject soldered down modules

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Message-Id: <20171108034911.16382-2-f.fainelli@gmail.com>
Date:   Tue,  7 Nov 2017 19:49:08 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, andrew@...n.ch, rmk+kernel@...linux.org.uk,
        Florian Fainelli <f.fainelli@...il.com>
Subject: [PATCH net-next 1/4] net: phy: sfp: Do not reject soldered down modules

The SFP module identification code in sfp_sm_mod_probe() will reject SFF
modules soldered down because they have an identified of 0x2, while the code
currently checks for 0x3 only (SFP_PHYS_ID_SFP), update that.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/net/phy/sfp.c | 5 +++--
 include/linux/sfp.h   | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index e381811e5f11..942288aa9cdb 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -463,8 +463,9 @@ static int sfp_sm_mod_probe(struct sfp *sfp)
 		 vendor, part, rev, sn, date);
 
 	/* We only support SFP modules, not the legacy GBIC modules. */
-	if (sfp->id.base.phys_id != SFP_PHYS_ID_SFP ||
-	    sfp->id.base.phys_ext_id != SFP_PHYS_EXT_ID_SFP) {
+	if ((sfp->id.base.phys_id != SFP_PHYS_ID_SFP &&
+	     sfp->id.base.phys_id != SFP_PHYS_ID_SFF) ||
+	     sfp->id.base.phys_ext_id != SFP_PHYS_EXT_ID_SFP) {
 		dev_err(sfp->dev, "module is not SFP - phys id 0x%02x 0x%02x\n",
 			sfp->id.base.phys_id, sfp->id.base.phys_ext_id);
 		return -EINVAL;
diff --git a/include/linux/sfp.h b/include/linux/sfp.h
index 4a906f560817..ee65831fe2c5 100644
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -222,6 +222,7 @@ enum {
 	SFP_SFF8472_COMPLIANCE		= 0x5e,
 	SFP_CC_EXT			= 0x5f,
 
+	SFP_PHYS_ID_SFF			= 0x02,
 	SFP_PHYS_ID_SFP			= 0x03,
 	SFP_PHYS_EXT_ID_SFP		= 0x04,
 	SFP_CONNECTOR_UNSPEC		= 0x00,
-- 
2.14.1