From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King Subject: [PATCH net 3/4] sfp: warn about modules requiring address change sequence Date: Thu, 30 Nov 2017 13:59:21 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Cc: netdev@vger.kernel.org To: Andrew Lunn , Florian Fainelli Return-path: Received: from pandora.armlinux.org.uk ([78.32.30.218]:56218 "EHLO pandora.armlinux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752463AbdK3N7Y (ORCPT ); Thu, 30 Nov 2017 08:59:24 -0500 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: We do not support SFP modules which require the address change sequence as detailed by SFF 8472 revision 1.22 section 8.9. Warn when these modules are inserted, and treat them as SFF8079 modules for ethtool. Signed-off-by: Russell King --- drivers/net/phy/sfp.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index c1aab6a81ce9..9dfc1c4c954f 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -487,6 +487,11 @@ static int sfp_sm_mod_probe(struct sfp *sfp) return -EINVAL; } + /* If the module requires address swap mode, warn about it */ + if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) + dev_warn(sfp->dev, + "module address swap to access page 0xA2 is not supported.\n"); + return sfp_module_insert(sfp->sfp_bus, &sfp->id); } @@ -652,7 +657,8 @@ static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) { /* locking... and check module is present */ - if (sfp->id.ext.sff8472_compliance) { + if (sfp->id.ext.sff8472_compliance && + !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { modinfo->type = ETH_MODULE_SFF_8472; modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; } else { -- 2.7.4