From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [NET-NEXT PATCH 2/3] net: add DCNA attribute to the BCN interface for DCB Date: Fri, 19 Dec 2008 16:15:00 -0800 Message-ID: <20081220001459.5908.13931.stgit@lost.foo-projects.org> References: <20081220001438.5908.23307.stgit@lost.foo-projects.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, jeff@garzik.org, Don Skidmore , Eric W Multanen , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from qmta02.westchester.pa.mail.comcast.net ([76.96.62.24]:56803 "EHLO QMTA02.westchester.pa.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751611AbYLTAPV (ORCPT ); Fri, 19 Dec 2008 19:15:21 -0500 In-Reply-To: <20081220001438.5908.23307.stgit@lost.foo-projects.org> Sender: netdev-owner@vger.kernel.org List-ID: From: Don Skidmore Adds the Backward Congestion Notification Address (BCNA) attribute to the Backward Congestion Notification (BCN) interface for Data Center Bridging (DCB), which was missing. Receive the BCNA attribute in the ixgbe driver. The BCNA attribute is for a switch to inform the endstation about the physical port identification in order to support BCN on aggregated links. Signed-off-by: Don Skidmore Signed-off-by: Eric W Multanen Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_dcb_nl.c | 20 ++++++++++++++++++++ include/linux/dcbnl.h | 2 ++ net/dcb/dcbnl.c | 6 ++++-- 3 files changed, 26 insertions(+), 2 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c index 7d158a5..8ac639d 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c @@ -93,6 +93,8 @@ int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, dst_dcb_cfg->bcn.rp_admin_mode[i - DCB_BCN_ATTR_RP_0] = src_dcb_cfg->bcn.rp_admin_mode[i - DCB_BCN_ATTR_RP_0]; } + dst_dcb_cfg->bcn.bcna_option[0] = src_dcb_cfg->bcn.bcna_option[0]; + dst_dcb_cfg->bcn.bcna_option[1] = src_dcb_cfg->bcn.bcna_option[1]; dst_dcb_cfg->bcn.rp_alpha = src_dcb_cfg->bcn.rp_alpha; dst_dcb_cfg->bcn.rp_beta = src_dcb_cfg->bcn.rp_beta; dst_dcb_cfg->bcn.rp_gd = src_dcb_cfg->bcn.rp_gd; @@ -457,6 +459,12 @@ static void ixgbe_dcbnl_getbcncfg(struct net_device *netdev, int enum_index, struct ixgbe_adapter *adapter = netdev_priv(netdev); switch (enum_index) { + case DCB_BCN_ATTR_BCNA_0: + *setting = adapter->dcb_cfg.bcn.bcna_option[0]; + break; + case DCB_BCN_ATTR_BCNA_1: + *setting = adapter->dcb_cfg.bcn.bcna_option[1]; + break; case DCB_BCN_ATTR_ALPHA: *setting = adapter->dcb_cfg.bcn.rp_alpha; break; @@ -516,6 +524,18 @@ static void ixgbe_dcbnl_setbcncfg(struct net_device *netdev, int enum_index, struct ixgbe_adapter *adapter = netdev_priv(netdev); switch (enum_index) { + case DCB_BCN_ATTR_BCNA_0: + adapter->temp_dcb_cfg.bcn.bcna_option[0] = setting; + if (adapter->temp_dcb_cfg.bcn.bcna_option[0] != + adapter->dcb_cfg.bcn.bcna_option[0]) + adapter->dcb_set_bitmap |= BIT_BCN; + break; + case DCB_BCN_ATTR_BCNA_1: + adapter->temp_dcb_cfg.bcn.bcna_option[1] = setting; + if (adapter->temp_dcb_cfg.bcn.bcna_option[1] != + adapter->dcb_cfg.bcn.bcna_option[1]) + adapter->dcb_set_bitmap |= BIT_BCN; + break; case DCB_BCN_ATTR_ALPHA: adapter->temp_dcb_cfg.bcn.rp_alpha = setting; if (adapter->temp_dcb_cfg.bcn.rp_alpha != diff --git a/include/linux/dcbnl.h b/include/linux/dcbnl.h index e73a614..b0ef274 100644 --- a/include/linux/dcbnl.h +++ b/include/linux/dcbnl.h @@ -305,6 +305,8 @@ enum dcbnl_bcn_attrs{ DCB_BCN_ATTR_RP_7, DCB_BCN_ATTR_RP_ALL, + DCB_BCN_ATTR_BCNA_0, + DCB_BCN_ATTR_BCNA_1, DCB_BCN_ATTR_ALPHA, DCB_BCN_ATTR_BETA, DCB_BCN_ATTR_GD, diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c index fc88fc4..5dbfe5f 100644 --- a/net/dcb/dcbnl.c +++ b/net/dcb/dcbnl.c @@ -140,6 +140,8 @@ static struct nla_policy dcbnl_bcn_nest[DCB_BCN_ATTR_MAX + 1] = { [DCB_BCN_ATTR_RP_6] = {.type = NLA_U8}, [DCB_BCN_ATTR_RP_7] = {.type = NLA_U8}, [DCB_BCN_ATTR_RP_ALL] = {.type = NLA_FLAG}, + [DCB_BCN_ATTR_BCNA_0] = {.type = NLA_U32}, + [DCB_BCN_ATTR_BCNA_1] = {.type = NLA_U32}, [DCB_BCN_ATTR_ALPHA] = {.type = NLA_U32}, [DCB_BCN_ATTR_BETA] = {.type = NLA_U32}, [DCB_BCN_ATTR_GD] = {.type = NLA_U32}, @@ -922,7 +924,7 @@ static int dcbnl_bcn_getcfg(struct net_device *netdev, struct nlattr **tb, goto err_bcn; } - for (i = DCB_BCN_ATTR_ALPHA; i <= DCB_BCN_ATTR_RI; i++) { + for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { if (!getall && !bcn_tb[i]) continue; @@ -980,7 +982,7 @@ static int dcbnl_bcn_setcfg(struct net_device *netdev, struct nlattr **tb, data[i]->nla_type - DCB_BCN_ATTR_RP_0, value_byte); } - for (i = DCB_BCN_ATTR_ALPHA; i <= DCB_BCN_ATTR_RI; i++) { + for (i = DCB_BCN_ATTR_BCNA_0; i <= DCB_BCN_ATTR_RI; i++) { if (data[i] == NULL) continue; value_int = nla_get_u32(data[i]);