diff options
Diffstat (limited to 'drivers/net/ethernet/emulex/benet/be_main.c')
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_main.c | 115 |
1 files changed, 56 insertions, 59 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index a0b4be51f0d1..98efc29eaa55 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -834,32 +834,39 @@ static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb) return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid; } -static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, struct sk_buff *skb) +static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, + struct sk_buff *skb) { - return BE3_chip(adapter) && - be_ipv6_exthdr_check(skb); + return BE3_chip(adapter) && be_ipv6_exthdr_check(skb); } -static netdev_tx_t be_xmit(struct sk_buff *skb, - struct net_device *netdev) +static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter, + struct sk_buff *skb, + bool *skip_hw_vlan) { - struct be_adapter *adapter = netdev_priv(netdev); - struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)]; - struct be_queue_info *txq = &txo->q; - struct iphdr *ip = NULL; - u32 wrb_cnt = 0, copied = 0; - u32 start = txq->head, eth_hdr_len; - bool dummy_wrb, stopped = false; - bool skip_hw_vlan = false; struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data; + unsigned int eth_hdr_len; + struct iphdr *ip; - eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ? - VLAN_ETH_HLEN : ETH_HLEN; + /* Lancer ASIC has a bug wherein packets that are 32 bytes or less + * may cause a transmit stall on that port. So the work-around is to + * pad such packets to a 36-byte length. + */ + if (unlikely(lancer_chip(adapter) && skb->len <= 32)) { + if (skb_padto(skb, 36)) + goto tx_drop; + skb->len = 36; + } /* For padded packets, BE HW modifies tot_len field in IP header * incorrecly when VLAN tag is inserted by HW. + * For padded packets, Lancer computes incorrect checksum. */ - if (skb->len <= 60 && vlan_tx_tag_present(skb) && is_ipv4_pkt(skb)) { + eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ? + VLAN_ETH_HLEN : ETH_HLEN; + if (skb->len <= 60 && + (lancer_chip(adapter) || vlan_tx_tag_present(skb)) && + is_ipv4_pkt(skb)) { ip = (struct iphdr *)ip_hdr(skb); pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len)); } @@ -869,15 +876,15 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, */ if ((adapter->function_mode & UMC_ENABLED) && veh->h_vlan_proto == htons(ETH_P_8021Q)) - skip_hw_vlan = true; + *skip_hw_vlan = true; /* HW has a bug wherein it will calculate CSUM for VLAN * pkts even though it is disabled. * Manually insert VLAN in pkt. */ if (skb->ip_summed != CHECKSUM_PARTIAL && - vlan_tx_tag_present(skb)) { - skb = be_insert_vlan_in_pkt(adapter, skb, &skip_hw_vlan); + vlan_tx_tag_present(skb)) { + skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan); if (unlikely(!skb)) goto tx_drop; } @@ -887,8 +894,8 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, * skip HW tagging is not enabled by FW. */ if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) && - (adapter->pvid || adapter->qnq_vid) && - !qnq_async_evt_rcvd(adapter))) + (adapter->pvid || adapter->qnq_vid) && + !qnq_async_evt_rcvd(adapter))) goto tx_drop; /* Manual VLAN tag insertion to prevent: @@ -899,11 +906,31 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, */ if (be_ipv6_tx_stall_chk(adapter, skb) && be_vlan_tag_tx_chk(adapter, skb)) { - skb = be_insert_vlan_in_pkt(adapter, skb, &skip_hw_vlan); + skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan); if (unlikely(!skb)) goto tx_drop; } + return skb; +tx_drop: + dev_kfree_skb_any(skb); + return NULL; +} + +static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev) +{ + struct be_adapter *adapter = netdev_priv(netdev); + struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)]; + struct be_queue_info *txq = &txo->q; + bool dummy_wrb, stopped = false; + u32 wrb_cnt = 0, copied = 0; + bool skip_hw_vlan = false; + u32 start = txq->head; + + skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan); + if (!skb) + return NETDEV_TX_OK; + wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb); copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb, @@ -933,7 +960,6 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, txq->head = start; dev_kfree_skb_any(skb); } -tx_drop: return NETDEV_TX_OK; } @@ -3184,7 +3210,7 @@ static int be_setup(struct be_adapter *adapter) if (status) goto err; - be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL); + be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash); if (adapter->vlans_added) be_vid_config(adapter); @@ -3530,40 +3556,6 @@ static int be_flash_skyhawk(struct be_adapter *adapter, return 0; } -static int lancer_wait_idle(struct be_adapter *adapter) -{ -#define SLIPORT_IDLE_TIMEOUT 30 - u32 reg_val; - int status = 0, i; - - for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) { - reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET); - if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0) - break; - - ssleep(1); - } - - if (i == SLIPORT_IDLE_TIMEOUT) - status = -1; - - return status; -} - -static int lancer_fw_reset(struct be_adapter *adapter) -{ - int status = 0; - - status = lancer_wait_idle(adapter); - if (status) - return status; - - iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db + - PHYSDEV_CONTROL_OFFSET); - - return status; -} - static int lancer_fw_download(struct be_adapter *adapter, const struct firmware *fw) { @@ -3641,7 +3633,8 @@ static int lancer_fw_download(struct be_adapter *adapter, } if (change_status == LANCER_FW_RESET_NEEDED) { - status = lancer_fw_reset(adapter); + status = lancer_physdev_ctrl(adapter, + PHYSDEV_CONTROL_FW_RESET_MASK); if (status) { dev_err(&adapter->pdev->dev, "Adapter busy for FW reset.\n" @@ -3776,6 +3769,10 @@ int be_load_fw(struct be_adapter *adapter, u8 *fw_file) else status = be_fw_download(adapter, fw); + if (!status) + be_cmd_get_fw_ver(adapter, adapter->fw_ver, + adapter->fw_on_flash); + fw_exit: release_firmware(fw); return status; |