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path: root/drivers/net/ethernet/broadcom/tg3.c
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Diffstat (limited to 'drivers/net/ethernet/broadcom/tg3.c')
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c70
1 files changed, 53 insertions, 17 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 8afa579e7c4..ba499489969 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -237,7 +237,7 @@ MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
#define TG3_DRV_DATA_FLAG_10_100_ONLY 0x0001
#define TG3_DRV_DATA_FLAG_5705_10_100 0x0002
-static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
+static const struct pci_device_id tg3_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
@@ -6918,7 +6918,8 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
skb->protocol = eth_type_trans(skb, tp->dev);
if (len > (tp->dev->mtu + ETH_HLEN) &&
- skb->protocol != htons(ETH_P_8021Q)) {
+ skb->protocol != htons(ETH_P_8021Q) &&
+ skb->protocol != htons(ETH_P_8021AD)) {
dev_kfree_skb_any(skb);
goto drop_it_no_recycle;
}
@@ -7830,17 +7831,18 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
static netdev_tx_t tg3_start_xmit(struct sk_buff *, struct net_device *);
-/* Use GSO to workaround a rare TSO bug that may be triggered when the
- * TSO header is greater than 80 bytes.
+/* Use GSO to workaround all TSO packets that meet HW bug conditions
+ * indicated in tg3_tx_frag_set()
*/
-static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
+static int tg3_tso_bug(struct tg3 *tp, struct tg3_napi *tnapi,
+ struct netdev_queue *txq, struct sk_buff *skb)
{
struct sk_buff *segs, *nskb;
u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
/* Estimate the number of fragments in the worst case */
- if (unlikely(tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)) {
- netif_stop_queue(tp->dev);
+ if (unlikely(tg3_tx_avail(tnapi) <= frag_cnt_est)) {
+ netif_tx_stop_queue(txq);
/* netif_tx_stop_queue() must be done before checking
* checking tx index in tg3_tx_avail() below, because in
@@ -7848,13 +7850,14 @@ static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
* netif_tx_queue_stopped().
*/
smp_mb();
- if (tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)
+ if (tg3_tx_avail(tnapi) <= frag_cnt_est)
return NETDEV_TX_BUSY;
- netif_wake_queue(tp->dev);
+ netif_tx_wake_queue(txq);
}
- segs = skb_gso_segment(skb, tp->dev->features & ~(NETIF_F_TSO | NETIF_F_TSO6));
+ segs = skb_gso_segment(skb, tp->dev->features &
+ ~(NETIF_F_TSO | NETIF_F_TSO6));
if (IS_ERR(segs) || !segs)
goto tg3_tso_bug_end;
@@ -7912,8 +7915,6 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
entry = tnapi->tx_prod;
base_flags = 0;
- if (skb->ip_summed == CHECKSUM_PARTIAL)
- base_flags |= TXD_FLAG_TCPUDP_CSUM;
mss = skb_shinfo(skb)->gso_size;
if (mss) {
@@ -7927,10 +7928,17 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb) - ETH_HLEN;
+ /* HW/FW can not correctly segment packets that have been
+ * vlan encapsulated.
+ */
+ if (skb->protocol == htons(ETH_P_8021Q) ||
+ skb->protocol == htons(ETH_P_8021AD))
+ return tg3_tso_bug(tp, tnapi, txq, skb);
+
if (!skb_is_gso_v6(skb)) {
if (unlikely((ETH_HLEN + hdr_len) > 80) &&
tg3_flag(tp, TSO_BUG))
- return tg3_tso_bug(tp, skb);
+ return tg3_tso_bug(tp, tnapi, txq, skb);
ip_csum = iph->check;
ip_tot_len = iph->tot_len;
@@ -7977,6 +7985,17 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
base_flags |= tsflags << 12;
}
}
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ /* HW/FW can not correctly checksum packets that have been
+ * vlan encapsulated.
+ */
+ if (skb->protocol == htons(ETH_P_8021Q) ||
+ skb->protocol == htons(ETH_P_8021AD)) {
+ if (skb_checksum_help(skb))
+ goto drop;
+ } else {
+ base_flags |= TXD_FLAG_TCPUDP_CSUM;
+ }
}
if (tg3_flag(tp, USE_JUMBO_BDFLAG) &&
@@ -8061,7 +8080,7 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
iph->tot_len = ip_tot_len;
}
tcph->check = tcp_csum;
- return tg3_tso_bug(tp, skb);
+ return tg3_tso_bug(tp, tnapi, txq, skb);
}
/* If the workaround fails due to memory/mapping
@@ -11615,6 +11634,12 @@ static int tg3_open(struct net_device *dev)
struct tg3 *tp = netdev_priv(dev);
int err;
+ if (tp->pcierr_recovery) {
+ netdev_err(dev, "Failed to open device. PCI error recovery "
+ "in progress\n");
+ return -EAGAIN;
+ }
+
if (tp->fw_needed) {
err = tg3_request_firmware(tp);
if (tg3_asic_rev(tp) == ASIC_REV_57766) {
@@ -11672,6 +11697,12 @@ static int tg3_close(struct net_device *dev)
{
struct tg3 *tp = netdev_priv(dev);
+ if (tp->pcierr_recovery) {
+ netdev_err(dev, "Failed to close device. PCI error recovery "
+ "in progress\n");
+ return -EAGAIN;
+ }
+
tg3_ptp_fini(tp);
tg3_stop(tp);
@@ -14091,8 +14122,9 @@ static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *dev,
spin_lock_bh(&tp->lock);
if (!tp->hw_stats) {
+ *stats = tp->net_stats_prev;
spin_unlock_bh(&tp->lock);
- return &tp->net_stats_prev;
+ return stats;
}
tg3_get_nstats(tp, stats);
@@ -15924,7 +15956,7 @@ static inline u32 tg3_rx_ret_ring_size(struct tg3 *tp)
return TG3_RX_RET_MAX_SIZE_5705;
}
-static DEFINE_PCI_DEVICE_TABLE(tg3_write_reorder_chipsets) = {
+static const struct pci_device_id tg3_write_reorder_chipsets[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE) },
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8385_0) },
@@ -17183,7 +17215,7 @@ static int tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma,
#define TEST_BUFFER_SIZE 0x2000
-static DEFINE_PCI_DEVICE_TABLE(tg3_dma_wait_state_chipsets) = {
+static const struct pci_device_id tg3_dma_wait_state_chipsets[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
{ },
};
@@ -17558,6 +17590,7 @@ static int tg3_init_one(struct pci_dev *pdev,
tp->rx_mode = TG3_DEF_RX_MODE;
tp->tx_mode = TG3_DEF_TX_MODE;
tp->irq_sync = 1;
+ tp->pcierr_recovery = false;
if (tg3_debug > 0)
tp->msg_enable = tg3_debug;
@@ -18068,6 +18101,8 @@ static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev,
rtnl_lock();
+ tp->pcierr_recovery = true;
+
/* We probably don't have netdev yet */
if (!netdev || !netif_running(netdev))
goto done;
@@ -18192,6 +18227,7 @@ static void tg3_io_resume(struct pci_dev *pdev)
tg3_phy_start(tp);
done:
+ tp->pcierr_recovery = false;
rtnl_unlock();
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-04-15 06:20:53 +0000