From 283c1c687051241e644af57bef7b6532cd65118a Mon Sep 17 00:00:00 2001 From: Manish chopra Date: Wed, 30 Jan 2013 12:47:15 +0000 Subject: [PATCH] qlcnic: driver LRO bug fix o ipv4 address was not getting programmed properly because of improper byte order conversion Signed-off-by: Manish chopra Signed-off-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- .../ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 18 +++++++++++++++--- drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c | 6 ++++-- 2 files changed, 19 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c index 1e81e94b3c6b..65233c846537 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c @@ -1399,7 +1399,7 @@ void qlcnic_83xx_config_ipaddr(struct qlcnic_adapter *adapter, __be32 ip, int mode) { int err; - u32 temp; + u32 temp, temp_ip; struct qlcnic_cmd_args cmd; qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_IP_ADDR); @@ -1410,8 +1410,17 @@ void qlcnic_83xx_config_ipaddr(struct qlcnic_adapter *adapter, __be32 ip, temp = adapter->recv_ctx->context_id << 16; cmd.req.arg[1] = 2 | temp; } - cmd.req.arg[2] = ntohl(ip); + /* + * Adapter needs IP address in network byte order. + * But hardware mailbox registers go through writel(), hence IP address + * gets swapped on big endian architecture. + * To negate swapping of writel() on big endian architecture + * use swab32(value). + */ + + temp_ip = swab32(ntohl(ip)); + memcpy(&cmd.req.arg[2], &temp_ip, sizeof(u32)); err = qlcnic_issue_cmd(adapter, &cmd); if (err != QLCNIC_RCODE_SUCCESS) dev_err(&adapter->netdev->dev, @@ -1425,13 +1434,16 @@ int qlcnic_83xx_config_hw_lro(struct qlcnic_adapter *adapter, int mode) int err; u32 temp, arg1; struct qlcnic_cmd_args cmd; + int lro_bit_mask; + + lro_bit_mask = (mode ? (BIT_0 | BIT_1 | BIT_2 | BIT_3) : 0); if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED) return 0; qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_HW_LRO); temp = adapter->recv_ctx->context_id << 16; - arg1 = (mode ? (BIT_0 | BIT_1 | BIT_3) : 0) | temp; + arg1 = lro_bit_mask | temp; cmd.req.arg[1] = arg1; err = qlcnic_issue_cmd(adapter, &cmd); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c index 6c6ecfc152b8..4e4ebafac5c9 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c @@ -958,8 +958,10 @@ int qlcnic_set_features(struct net_device *netdev, netdev_features_t features) if (qlcnic_config_hw_lro(adapter, hw_lro)) return -EIO; - if ((hw_lro == 0) && qlcnic_send_lro_cleanup(adapter)) - return -EIO; + if (!hw_lro && qlcnic_82xx_check(adapter)) { + if (qlcnic_send_lro_cleanup(adapter)) + return -EIO; + } return 0; } -- 2.30.2