From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next-2.6 PATCH] ixgbe: Disallow SFP 1G modules in the SFP+ cages for 82598 and 82599 Date: Thu, 23 Apr 2009 14:31:37 -0700 Message-ID: <20090423213136.29824.81597.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, gospo@redhat.com, Peter P Waskiewicz Jr , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from qmta03.westchester.pa.mail.comcast.net ([76.96.62.32]:37086 "EHLO QMTA03.westchester.pa.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757398AbZDWVcH (ORCPT ); Thu, 23 Apr 2009 17:32:07 -0400 Sender: netdev-owner@vger.kernel.org List-ID: From: Waskiewicz Jr, Peter P 82598 and 82599 do not support SFP 1G modules. Instead of allowing the driver to load, but never get link, rejecting the module and displaying a useful message is more preferrable. The framework for displaying the failure message already exists, now we just need to detect and reject the SFP modules. Signed-off-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_phy.c | 22 +++++++++++++++++----- drivers/net/ixgbe/ixgbe_type.h | 1 + 2 files changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c index f3258ec..2543c32 100644 --- a/drivers/net/ixgbe/ixgbe_phy.c +++ b/drivers/net/ixgbe/ixgbe_phy.c @@ -673,11 +673,22 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw) break; } } - if (hw->mac.type == ixgbe_mac_82598EB || - (hw->phy.sfp_type != ixgbe_sfp_type_sr && - hw->phy.sfp_type != ixgbe_sfp_type_lr && - hw->phy.sfp_type != ixgbe_sfp_type_srlr_core0 && - hw->phy.sfp_type != ixgbe_sfp_type_srlr_core1)) { + + /* All DA cables are supported */ + if (transmission_media & IXGBE_SFF_TWIN_AX_CAPABLE) { + status = 0; + goto out; + } + + /* 1G SFP modules are not supported */ + if (comp_codes_10g == 0) { + hw->phy.type = ixgbe_phy_sfp_unsupported; + status = IXGBE_ERR_SFP_NOT_SUPPORTED; + goto out; + } + + /* Anything else 82598-based is supported */ + if (hw->mac.type == ixgbe_mac_82598EB) { status = 0; goto out; } @@ -690,6 +701,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw) status = 0; } else { hw_dbg(hw, "SFP+ module not supported\n"); + hw->phy.type = ixgbe_phy_sfp_unsupported; status = IXGBE_ERR_SFP_NOT_SUPPORTED; } } else { diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index a3317d8..375f0d4 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/drivers/net/ixgbe/ixgbe_type.h @@ -1904,6 +1904,7 @@ enum ixgbe_phy_type { ixgbe_phy_sfp_ftl, ixgbe_phy_sfp_unknown, ixgbe_phy_sfp_intel, + ixgbe_phy_sfp_unsupported, ixgbe_phy_generic };