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path: root/drivers/staging/sxg/sxg.c
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Diffstat (limited to 'drivers/staging/sxg/sxg.c')
-rw-r--r--drivers/staging/sxg/sxg.c127
1 files changed, 84 insertions, 43 deletions
diff --git a/drivers/staging/sxg/sxg.c b/drivers/staging/sxg/sxg.c
index 891f6e334672..076b3f7d39eb 100644
--- a/drivers/staging/sxg/sxg.c
+++ b/drivers/staging/sxg/sxg.c
@@ -322,6 +322,8 @@ int sxg_add_msi_isr(struct adapter_t *adapter)
int ret,i;
if (!adapter->intrregistered) {
+ spin_unlock_irqrestore(&sxg_global.driver_lock,
+ sxg_global.flags);
for (i=0; i<adapter->nr_msix_entries; i++) {
ret = request_irq (adapter->msi_entries[i].vector,
sxg_isr,
@@ -329,6 +331,8 @@ int sxg_add_msi_isr(struct adapter_t *adapter)
adapter->netdev->name,
adapter->netdev);
if (ret) {
+ spin_lock_irqsave(&sxg_global.driver_lock,
+ sxg_global.flags);
DBG_ERROR("sxg: MSI-X request_irq (%s) "
"FAILED [%x]\n", adapter->netdev->name,
ret);
@@ -336,6 +340,7 @@ int sxg_add_msi_isr(struct adapter_t *adapter)
}
}
}
+ spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags);
adapter->msi_enabled = TRUE;
adapter->intrregistered = 1;
adapter->IntRegistered = TRUE;
@@ -896,6 +901,22 @@ static inline int sxg_read_config(struct adapter_t *adapter)
return status;
}
+static const struct net_device_ops sxg_netdev_ops = {
+ .ndo_open = sxg_entry_open,
+ .ndo_stop = sxg_entry_halt,
+ .ndo_start_xmit = sxg_send_packets,
+ .ndo_do_ioctl = sxg_ioctl,
+ .ndo_change_mtu = sxg_change_mtu,
+ .ndo_get_stats = sxg_get_stats,
+ .ndo_set_multicast_list = sxg_mcast_set_list,
+ .ndo_validate_addr = eth_validate_addr,
+#if XXXTODO
+ .ndo_set_mac_address = sxg_mac_set_address,
+#else
+ .ndo_set_mac_address = eth_mac_addr,
+#endif
+};
+
static int sxg_entry_probe(struct pci_dev *pcidev,
const struct pci_device_id *pci_tbl_entry)
{
@@ -1095,16 +1116,7 @@ static int sxg_entry_probe(struct pci_dev *pcidev,
netdev->base_addr = (unsigned long)adapter->base_addr;
netdev->irq = adapter->irq;
- netdev->open = sxg_entry_open;
- netdev->stop = sxg_entry_halt;
- netdev->hard_start_xmit = sxg_send_packets;
- netdev->do_ioctl = sxg_ioctl;
- netdev->change_mtu = sxg_change_mtu;
-#if XXXTODO
- netdev->set_mac_address = sxg_mac_set_address;
-#endif
- netdev->get_stats = sxg_get_stats;
- netdev->set_multicast_list = sxg_mcast_set_list;
+ netdev->netdev_ops = &sxg_netdev_ops;
SET_ETHTOOL_OPS(netdev, &sxg_nic_ethtool_ops);
netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
err = sxg_set_interrupt_capability(adapter);
@@ -2247,6 +2259,8 @@ static int sxg_entry_open(struct net_device *dev)
DBG_ERROR("sxg: %s EXIT\n", __func__);
spin_unlock_irqrestore(&sxg_global.driver_lock, sxg_global.flags);
+ mod_timer(&adapter->watchdog_timer, jiffies);
+
return STATUS_SUCCESS;
}
@@ -2568,6 +2582,7 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
u64 phys_addr;
unsigned long flags;
unsigned long queue_id=0;
+ int offload_cksum = 0;
SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbSgl",
pSgl, SxgSgl, 0, 0);
@@ -2606,7 +2621,11 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
struct iphdr *ip;
ip = ip_hdr(skb);
- if ((ip->protocol == IPPROTO_TCP)&&(DataLength >= sizeof(
+ if (ip->protocol == IPPROTO_TCP)
+ offload_cksum = 1;
+ if (!offload_cksum || !tcp_hdr(skb))
+ queue_id = 0;
+ else if (offload_cksum && (DataLength >= sizeof(
struct tcphdr))){
queue_id = ((ntohs(tcp_hdr(skb)->dest) == ISCSI_PORT) ?
(ntohs (tcp_hdr(skb)->source) &
@@ -2615,8 +2634,11 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
SXG_LARGE_SEND_QUEUE_MASK));
}
} else if (skb->protocol == htons(ETH_P_IPV6)) {
- if ((ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) && (DataLength >=
- sizeof(struct tcphdr)) ) {
+ if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+ offload_cksum = 1;
+ if (!offload_cksum || !tcp_hdr(skb))
+ queue_id = 0;
+ else if (offload_cksum && (DataLength>=sizeof(struct tcphdr))){
queue_id = ((ntohs(tcp_hdr(skb)->dest) == ISCSI_PORT) ?
(ntohs (tcp_hdr(skb)->source) &
SXG_LARGE_SEND_QUEUE_MASK):
@@ -2645,23 +2667,38 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
}
SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbCmd",
XmtCmd, XmtRingInfo->Head, XmtRingInfo->Tail, 0);
- /* Update stats */
- adapter->stats.tx_packets++;
- adapter->stats.tx_bytes += DataLength;
-#if XXXTODO /* Stats stuff */
- if (SXG_MULTICAST_PACKET(EtherHdr)) {
- if (SXG_BROADCAST_PACKET(EtherHdr)) {
- adapter->Stats.DumbXmtBcastPkts++;
- adapter->Stats.DumbXmtBcastBytes += DataLength;
+ memset(XmtCmd, '\0', sizeof(*XmtCmd));
+ XmtCmd->SgEntries = 1;
+ XmtCmd->Flags = 0;
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ /*
+ * We need to set the Checkum in IP header to 0. This is
+ * required by hardware.
+ */
+ if (offload_cksum) {
+ ip_hdr(skb)->check = 0x0;
+ XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_IP;
+ XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_TCP;
+ /*
+ * Dont know if length will require a change in
+ * case of VLAN
+ */
+ XmtCmd->CsumFlags.MacLen = ETH_HLEN;
+ XmtCmd->CsumFlags.IpHl = skb_network_header_len(skb) >>
+ SXG_NW_HDR_LEN_SHIFT;
} else {
- adapter->Stats.DumbXmtMcastPkts++;
- adapter->Stats.DumbXmtMcastBytes += DataLength;
+ if (skb_checksum_help(skb)){
+ printk(KERN_EMERG "Dropped UDP packet for"
+ " incorrect checksum calculation\n");
+ if (XmtCmd)
+ SXG_ABORT_CMD(XmtRingInfo);
+ spin_unlock_irqrestore(&adapter->XmtZeroLock,
+ flags);
+ return STATUS_SUCCESS;
+ }
}
- } else {
- adapter->Stats.DumbXmtUcastPkts++;
- adapter->Stats.DumbXmtUcastBytes += DataLength;
}
-#endif
+
/*
* Fill in the command
* Copy out the first SGE to the command and adjust for offset
@@ -2679,31 +2716,17 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
(SXG_INVALID_SGL(phys_addr,skb->data_len)))
{
spin_unlock_irqrestore(&adapter->XmtZeroLock, flags);
+ if (XmtCmd)
+ SXG_ABORT_CMD(XmtRingInfo);
/* Silently drop this packet */
printk(KERN_EMERG"Dropped a packet for 64k boundary problem\n");
return STATUS_SUCCESS;
}
- memset(XmtCmd, '\0', sizeof(*XmtCmd));
XmtCmd->Buffer.FirstSgeAddress = phys_addr;
XmtCmd->Buffer.FirstSgeLength = DataLength;
XmtCmd->Buffer.SgeOffset = 0;
XmtCmd->Buffer.TotalLength = DataLength;
- XmtCmd->SgEntries = 1;
- XmtCmd->Flags = 0;
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- /*
- * We need to set the Checkum in IP header to 0. This is
- * required by hardware.
- */
- ip_hdr(skb)->check = 0x0;
- XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_IP;
- XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_TCP;
- /* Dont know if length will require a change in case of VLAN */
- XmtCmd->CsumFlags.MacLen = ETH_HLEN;
- XmtCmd->CsumFlags.IpHl = skb_network_header_len(skb) >>
- SXG_NW_HDR_LEN_SHIFT;
- }
/*
* Advance transmit cmd descripter by 1.
* NOTE - See comments in SxgTcpOutput where we write
@@ -2715,6 +2738,24 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
ASSERT((queue_id & ~SXG_LARGE_SEND_QUEUE_MASK) == 0);
WRITE_REG(adapter->UcodeRegs[0].XmtCmd, ((queue_id << 16) | 1), TRUE);
adapter->Stats.XmtQLen++; /* Stats within lock */
+ /* Update stats */
+ adapter->stats.tx_packets++;
+ adapter->stats.tx_bytes += DataLength;
+#if XXXTODO /* Stats stuff */
+ if (SXG_MULTICAST_PACKET(EtherHdr)) {
+ if (SXG_BROADCAST_PACKET(EtherHdr)) {
+ adapter->Stats.DumbXmtBcastPkts++;
+ adapter->Stats.DumbXmtBcastBytes += DataLength;
+ } else {
+ adapter->Stats.DumbXmtMcastPkts++;
+ adapter->Stats.DumbXmtMcastBytes += DataLength;
+ }
+ } else {
+ adapter->Stats.DumbXmtUcastPkts++;
+ adapter->Stats.DumbXmtUcastBytes += DataLength;
+ }
+#endif
+
spin_unlock_irqrestore(&adapter->XmtZeroLock, flags);
SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDumSgl2",
XmtCmd, pSgl, SxgSgl, 0);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.