|
|
|
@ -76,7 +76,7 @@
|
|
|
|
|
#include "s2io.h"
|
|
|
|
|
#include "s2io-regs.h"
|
|
|
|
|
|
|
|
|
|
#define DRV_VERSION "2.0.14.2"
|
|
|
|
|
#define DRV_VERSION "2.0.15.2"
|
|
|
|
|
|
|
|
|
|
/* S2io Driver name & version. */
|
|
|
|
|
static char s2io_driver_name[] = "Neterion";
|
|
|
|
@ -370,38 +370,50 @@ static const u64 fix_mac[] = {
|
|
|
|
|
END_SIGN
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Raghavendra Koushik <raghavendra.koushik@neterion.com>");
|
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
MODULE_VERSION(DRV_VERSION);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Module Loadable parameters. */
|
|
|
|
|
static unsigned int tx_fifo_num = 1;
|
|
|
|
|
S2IO_PARM_INT(tx_fifo_num, 1);
|
|
|
|
|
S2IO_PARM_INT(rx_ring_num, 1);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
S2IO_PARM_INT(rx_ring_mode, 1);
|
|
|
|
|
S2IO_PARM_INT(use_continuous_tx_intrs, 1);
|
|
|
|
|
S2IO_PARM_INT(rmac_pause_time, 0x100);
|
|
|
|
|
S2IO_PARM_INT(mc_pause_threshold_q0q3, 187);
|
|
|
|
|
S2IO_PARM_INT(mc_pause_threshold_q4q7, 187);
|
|
|
|
|
S2IO_PARM_INT(shared_splits, 0);
|
|
|
|
|
S2IO_PARM_INT(tmac_util_period, 5);
|
|
|
|
|
S2IO_PARM_INT(rmac_util_period, 5);
|
|
|
|
|
S2IO_PARM_INT(bimodal, 0);
|
|
|
|
|
S2IO_PARM_INT(l3l4hdr_size, 128);
|
|
|
|
|
/* Frequency of Rx desc syncs expressed as power of 2 */
|
|
|
|
|
S2IO_PARM_INT(rxsync_frequency, 3);
|
|
|
|
|
/* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */
|
|
|
|
|
S2IO_PARM_INT(intr_type, 0);
|
|
|
|
|
/* Large receive offload feature */
|
|
|
|
|
S2IO_PARM_INT(lro, 0);
|
|
|
|
|
/* Max pkts to be aggregated by LRO at one time. If not specified,
|
|
|
|
|
* aggregation happens until we hit max IP pkt size(64K)
|
|
|
|
|
*/
|
|
|
|
|
S2IO_PARM_INT(lro_max_pkts, 0xFFFF);
|
|
|
|
|
#ifndef CONFIG_S2IO_NAPI
|
|
|
|
|
S2IO_PARM_INT(indicate_max_pkts, 0);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
|
|
|
|
|
{DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN};
|
|
|
|
|
static unsigned int rx_ring_num = 1;
|
|
|
|
|
static unsigned int rx_ring_sz[MAX_RX_RINGS] =
|
|
|
|
|
{[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT};
|
|
|
|
|
static unsigned int rts_frm_len[MAX_RX_RINGS] =
|
|
|
|
|
{[0 ...(MAX_RX_RINGS - 1)] = 0 };
|
|
|
|
|
static unsigned int rx_ring_mode = 1;
|
|
|
|
|
static unsigned int use_continuous_tx_intrs = 1;
|
|
|
|
|
static unsigned int rmac_pause_time = 0x100;
|
|
|
|
|
static unsigned int mc_pause_threshold_q0q3 = 187;
|
|
|
|
|
static unsigned int mc_pause_threshold_q4q7 = 187;
|
|
|
|
|
static unsigned int shared_splits;
|
|
|
|
|
static unsigned int tmac_util_period = 5;
|
|
|
|
|
static unsigned int rmac_util_period = 5;
|
|
|
|
|
static unsigned int bimodal = 0;
|
|
|
|
|
static unsigned int l3l4hdr_size = 128;
|
|
|
|
|
#ifndef CONFIG_S2IO_NAPI
|
|
|
|
|
static unsigned int indicate_max_pkts;
|
|
|
|
|
#endif
|
|
|
|
|
/* Frequency of Rx desc syncs expressed as power of 2 */
|
|
|
|
|
static unsigned int rxsync_frequency = 3;
|
|
|
|
|
/* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */
|
|
|
|
|
static unsigned int intr_type = 0;
|
|
|
|
|
/* Large receive offload feature */
|
|
|
|
|
static unsigned int lro = 0;
|
|
|
|
|
/* Max pkts to be aggregated by LRO at one time. If not specified,
|
|
|
|
|
* aggregation happens until we hit max IP pkt size(64K)
|
|
|
|
|
*/
|
|
|
|
|
static unsigned int lro_max_pkts = 0xFFFF;
|
|
|
|
|
|
|
|
|
|
module_param_array(tx_fifo_len, uint, NULL, 0);
|
|
|
|
|
module_param_array(rx_ring_sz, uint, NULL, 0);
|
|
|
|
|
module_param_array(rts_frm_len, uint, NULL, 0);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* S2IO device table.
|
|
|
|
@ -464,10 +476,9 @@ static int init_shared_mem(struct s2io_nic *nic)
|
|
|
|
|
size += config->tx_cfg[i].fifo_len;
|
|
|
|
|
}
|
|
|
|
|
if (size > MAX_AVAILABLE_TXDS) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s: Requested TxDs too high, ",
|
|
|
|
|
__FUNCTION__);
|
|
|
|
|
DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, ");
|
|
|
|
|
DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size);
|
|
|
|
|
return FAILURE;
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
lst_size = (sizeof(TxD_t) * config->max_txds);
|
|
|
|
@ -547,6 +558,7 @@ static int init_shared_mem(struct s2io_nic *nic)
|
|
|
|
|
nic->ufo_in_band_v = kmalloc((sizeof(u64) * size), GFP_KERNEL);
|
|
|
|
|
if (!nic->ufo_in_band_v)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
memset(nic->ufo_in_band_v, 0, size);
|
|
|
|
|
|
|
|
|
|
/* Allocation and initialization of RXDs in Rings */
|
|
|
|
|
size = 0;
|
|
|
|
@ -1213,7 +1225,7 @@ static int init_nic(struct s2io_nic *nic)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Enable Tx FIFO partition 0. */
|
|
|
|
|
/* Enable all configured Tx FIFO partitions */
|
|
|
|
|
val64 = readq(&bar0->tx_fifo_partition_0);
|
|
|
|
|
val64 |= (TX_FIFO_PARTITION_EN);
|
|
|
|
|
writeq(val64, &bar0->tx_fifo_partition_0);
|
|
|
|
@ -1650,7 +1662,7 @@ static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
|
|
|
|
|
writeq(temp64, &bar0->general_int_mask);
|
|
|
|
|
/*
|
|
|
|
|
* If Hercules adapter enable GPIO otherwise
|
|
|
|
|
* disabled all PCIX, Flash, MDIO, IIC and GPIO
|
|
|
|
|
* disable all PCIX, Flash, MDIO, IIC and GPIO
|
|
|
|
|
* interrupts for now.
|
|
|
|
|
* TODO
|
|
|
|
|
*/
|
|
|
|
@ -2119,7 +2131,7 @@ static struct sk_buff *s2io_txdl_getskb(fifo_info_t *fifo_data, TxD_t *txdlp, in
|
|
|
|
|
frag->size, PCI_DMA_TODEVICE);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
txdlp->Host_Control = 0;
|
|
|
|
|
memset(txdlp,0, (sizeof(TxD_t) * fifo_data->max_txds));
|
|
|
|
|
return(skb);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -2371,9 +2383,14 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
|
|
|
|
|
skb->data = (void *) (unsigned long)tmp;
|
|
|
|
|
skb->tail = (void *) (unsigned long)tmp;
|
|
|
|
|
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer0_ptr =
|
|
|
|
|
pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN,
|
|
|
|
|
if (!(((RxD3_t*)rxdp)->Buffer0_ptr))
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer0_ptr =
|
|
|
|
|
pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN,
|
|
|
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
|
else
|
|
|
|
|
pci_dma_sync_single_for_device(nic->pdev,
|
|
|
|
|
(dma_addr_t) ((RxD3_t*)rxdp)->Buffer0_ptr,
|
|
|
|
|
BUF0_LEN, PCI_DMA_FROMDEVICE);
|
|
|
|
|
rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
|
|
|
|
|
if (nic->rxd_mode == RXD_MODE_3B) {
|
|
|
|
|
/* Two buffer mode */
|
|
|
|
@ -2386,10 +2403,13 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
|
|
|
|
|
(nic->pdev, skb->data, dev->mtu + 4,
|
|
|
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
|
|
|
|
|
|
/* Buffer-1 will be dummy buffer not used */
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer1_ptr =
|
|
|
|
|
pci_map_single(nic->pdev, ba->ba_1, BUF1_LEN,
|
|
|
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
|
/* Buffer-1 will be dummy buffer. Not used */
|
|
|
|
|
if (!(((RxD3_t*)rxdp)->Buffer1_ptr)) {
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer1_ptr =
|
|
|
|
|
pci_map_single(nic->pdev,
|
|
|
|
|
ba->ba_1, BUF1_LEN,
|
|
|
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
|
}
|
|
|
|
|
rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
|
|
|
|
|
rxdp->Control_2 |= SET_BUFFER2_SIZE_3
|
|
|
|
|
(dev->mtu + 4);
|
|
|
|
@ -2614,23 +2634,23 @@ static int s2io_poll(struct net_device *dev, int *budget)
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
|
|
|
/**
|
|
|
|
|
* s2io_netpoll - Rx interrupt service handler for netpoll support
|
|
|
|
|
* s2io_netpoll - netpoll event handler entry point
|
|
|
|
|
* @dev : pointer to the device structure.
|
|
|
|
|
* Description:
|
|
|
|
|
* Polling 'interrupt' - used by things like netconsole to send skbs
|
|
|
|
|
* without having to re-enable interrupts. It's not called while
|
|
|
|
|
* the interrupt routine is executing.
|
|
|
|
|
* This function will be called by upper layer to check for events on the
|
|
|
|
|
* interface in situations where interrupts are disabled. It is used for
|
|
|
|
|
* specific in-kernel networking tasks, such as remote consoles and kernel
|
|
|
|
|
* debugging over the network (example netdump in RedHat).
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
|
|
|
static void s2io_netpoll(struct net_device *dev)
|
|
|
|
|
{
|
|
|
|
|
nic_t *nic = dev->priv;
|
|
|
|
|
mac_info_t *mac_control;
|
|
|
|
|
struct config_param *config;
|
|
|
|
|
XENA_dev_config_t __iomem *bar0 = nic->bar0;
|
|
|
|
|
u64 val64;
|
|
|
|
|
u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
disable_irq(dev->irq);
|
|
|
|
@ -2639,9 +2659,17 @@ static void s2io_netpoll(struct net_device *dev)
|
|
|
|
|
mac_control = &nic->mac_control;
|
|
|
|
|
config = &nic->config;
|
|
|
|
|
|
|
|
|
|
val64 = readq(&bar0->rx_traffic_int);
|
|
|
|
|
writeq(val64, &bar0->rx_traffic_int);
|
|
|
|
|
writeq(val64, &bar0->tx_traffic_int);
|
|
|
|
|
|
|
|
|
|
/* we need to free up the transmitted skbufs or else netpoll will
|
|
|
|
|
* run out of skbs and will fail and eventually netpoll application such
|
|
|
|
|
* as netdump will fail.
|
|
|
|
|
*/
|
|
|
|
|
for (i = 0; i < config->tx_fifo_num; i++)
|
|
|
|
|
tx_intr_handler(&mac_control->fifos[i]);
|
|
|
|
|
|
|
|
|
|
/* check for received packet and indicate up to network */
|
|
|
|
|
for (i = 0; i < config->rx_ring_num; i++)
|
|
|
|
|
rx_intr_handler(&mac_control->rings[i]);
|
|
|
|
|
|
|
|
|
@ -2708,7 +2736,7 @@ static void rx_intr_handler(ring_info_t *ring_data)
|
|
|
|
|
/* If your are next to put index then it's FIFO full condition */
|
|
|
|
|
if ((get_block == put_block) &&
|
|
|
|
|
(get_info.offset + 1) == put_info.offset) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s: Ring Full\n",dev->name);
|
|
|
|
|
DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control);
|
|
|
|
@ -2728,18 +2756,15 @@ static void rx_intr_handler(ring_info_t *ring_data)
|
|
|
|
|
HEADER_SNAP_SIZE,
|
|
|
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
|
} else if (nic->rxd_mode == RXD_MODE_3B) {
|
|
|
|
|
pci_unmap_single(nic->pdev, (dma_addr_t)
|
|
|
|
|
pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t)
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer0_ptr,
|
|
|
|
|
BUF0_LEN, PCI_DMA_FROMDEVICE);
|
|
|
|
|
pci_unmap_single(nic->pdev, (dma_addr_t)
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer1_ptr,
|
|
|
|
|
BUF1_LEN, PCI_DMA_FROMDEVICE);
|
|
|
|
|
pci_unmap_single(nic->pdev, (dma_addr_t)
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer2_ptr,
|
|
|
|
|
dev->mtu + 4,
|
|
|
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
|
} else {
|
|
|
|
|
pci_unmap_single(nic->pdev, (dma_addr_t)
|
|
|
|
|
pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t)
|
|
|
|
|
((RxD3_t*)rxdp)->Buffer0_ptr, BUF0_LEN,
|
|
|
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
|
pci_unmap_single(nic->pdev, (dma_addr_t)
|
|
|
|
@ -3327,7 +3352,7 @@ static void s2io_reset(nic_t * sp)
|
|
|
|
|
|
|
|
|
|
/* Clear certain PCI/PCI-X fields after reset */
|
|
|
|
|
if (sp->device_type == XFRAME_II_DEVICE) {
|
|
|
|
|
/* Clear parity err detect bit */
|
|
|
|
|
/* Clear "detected parity error" bit */
|
|
|
|
|
pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000);
|
|
|
|
|
|
|
|
|
|
/* Clearing PCIX Ecc status register */
|
|
|
|
@ -3528,7 +3553,7 @@ static void restore_xmsi_data(nic_t *nic)
|
|
|
|
|
u64 val64;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i=0; i< nic->avail_msix_vectors; i++) {
|
|
|
|
|
for (i=0; i < MAX_REQUESTED_MSI_X; i++) {
|
|
|
|
|
writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
|
|
|
|
|
writeq(nic->msix_info[i].data, &bar0->xmsi_data);
|
|
|
|
|
val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6));
|
|
|
|
@ -3547,7 +3572,7 @@ static void store_xmsi_data(nic_t *nic)
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
/* Store and display */
|
|
|
|
|
for (i=0; i< nic->avail_msix_vectors; i++) {
|
|
|
|
|
for (i=0; i < MAX_REQUESTED_MSI_X; i++) {
|
|
|
|
|
val64 = (BIT(15) | vBIT(i, 26, 6));
|
|
|
|
|
writeq(val64, &bar0->xmsi_access);
|
|
|
|
|
if (wait_for_msix_trans(nic, i)) {
|
|
|
|
@ -3808,13 +3833,11 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
|
|
|
TxD_t *txdp;
|
|
|
|
|
TxFIFO_element_t __iomem *tx_fifo;
|
|
|
|
|
unsigned long flags;
|
|
|
|
|
#ifdef NETIF_F_TSO
|
|
|
|
|
int mss;
|
|
|
|
|
#endif
|
|
|
|
|
u16 vlan_tag = 0;
|
|
|
|
|
int vlan_priority = 0;
|
|
|
|
|
mac_info_t *mac_control;
|
|
|
|
|
struct config_param *config;
|
|
|
|
|
int offload_type;
|
|
|
|
|
|
|
|
|
|
mac_control = &sp->mac_control;
|
|
|
|
|
config = &sp->config;
|
|
|
|
@ -3862,13 +3885,11 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
txdp->Control_1 = 0;
|
|
|
|
|
txdp->Control_2 = 0;
|
|
|
|
|
offload_type = s2io_offload_type(skb);
|
|
|
|
|
#ifdef NETIF_F_TSO
|
|
|
|
|
mss = skb_shinfo(skb)->gso_size;
|
|
|
|
|
if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
|
|
|
|
|
if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
|
|
|
|
|
txdp->Control_1 |= TXD_TCP_LSO_EN;
|
|
|
|
|
txdp->Control_1 |= TXD_TCP_LSO_MSS(mss);
|
|
|
|
|
txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
if (skb->ip_summed == CHECKSUM_HW) {
|
|
|
|
@ -3886,10 +3907,10 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
frg_len = skb->len - skb->data_len;
|
|
|
|
|
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP) {
|
|
|
|
|
if (offload_type == SKB_GSO_UDP) {
|
|
|
|
|
int ufo_size;
|
|
|
|
|
|
|
|
|
|
ufo_size = skb_shinfo(skb)->gso_size;
|
|
|
|
|
ufo_size = s2io_udp_mss(skb);
|
|
|
|
|
ufo_size &= ~7;
|
|
|
|
|
txdp->Control_1 |= TXD_UFO_EN;
|
|
|
|
|
txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
|
|
|
|
@ -3906,16 +3927,13 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
|
|
|
sp->ufo_in_band_v,
|
|
|
|
|
sizeof(u64), PCI_DMA_TODEVICE);
|
|
|
|
|
txdp++;
|
|
|
|
|
txdp->Control_1 = 0;
|
|
|
|
|
txdp->Control_2 = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
txdp->Buffer_Pointer = pci_map_single
|
|
|
|
|
(sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE);
|
|
|
|
|
txdp->Host_Control = (unsigned long) skb;
|
|
|
|
|
txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
|
|
|
|
|
|
|
|
|
|
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
|
|
|
|
|
if (offload_type == SKB_GSO_UDP)
|
|
|
|
|
txdp->Control_1 |= TXD_UFO_EN;
|
|
|
|
|
|
|
|
|
|
frg_cnt = skb_shinfo(skb)->nr_frags;
|
|
|
|
@ -3930,12 +3948,12 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
|
|
|
(sp->pdev, frag->page, frag->page_offset,
|
|
|
|
|
frag->size, PCI_DMA_TODEVICE);
|
|
|
|
|
txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
|
|
|
|
|
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
|
|
|
|
|
if (offload_type == SKB_GSO_UDP)
|
|
|
|
|
txdp->Control_1 |= TXD_UFO_EN;
|
|
|
|
|
}
|
|
|
|
|
txdp->Control_1 |= TXD_GATHER_CODE_LAST;
|
|
|
|
|
|
|
|
|
|
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
|
|
|
|
|
if (offload_type == SKB_GSO_UDP)
|
|
|
|
|
frg_cnt++; /* as Txd0 was used for inband header */
|
|
|
|
|
|
|
|
|
|
tx_fifo = mac_control->tx_FIFO_start[queue];
|
|
|
|
@ -3944,13 +3962,9 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
|
|
|
|
|
|
|
|
val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
|
|
|
|
|
TX_FIFO_LAST_LIST);
|
|
|
|
|
if (offload_type)
|
|
|
|
|
val64 |= TX_FIFO_SPECIAL_FUNC;
|
|
|
|
|
|
|
|
|
|
#ifdef NETIF_F_TSO
|
|
|
|
|
if (mss)
|
|
|
|
|
val64 |= TX_FIFO_SPECIAL_FUNC;
|
|
|
|
|
#endif
|
|
|
|
|
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
|
|
|
|
|
val64 |= TX_FIFO_SPECIAL_FUNC;
|
|
|
|
|
writeq(val64, &tx_fifo->List_Control);
|
|
|
|
|
|
|
|
|
|
mmiowb();
|
|
|
|
@ -3984,13 +3998,41 @@ s2io_alarm_handle(unsigned long data)
|
|
|
|
|
mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int s2io_chk_rx_buffers(nic_t *sp, int rng_n)
|
|
|
|
|
{
|
|
|
|
|
int rxb_size, level;
|
|
|
|
|
|
|
|
|
|
if (!sp->lro) {
|
|
|
|
|
rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
|
|
|
|
|
level = rx_buffer_level(sp, rxb_size, rng_n);
|
|
|
|
|
|
|
|
|
|
if ((level == PANIC) && (!TASKLET_IN_USE)) {
|
|
|
|
|
int ret;
|
|
|
|
|
DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
|
|
|
|
|
DBG_PRINT(INTR_DBG, "PANIC levels\n");
|
|
|
|
|
if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "Out of memory in %s",
|
|
|
|
|
__FUNCTION__);
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
} else if (level == LOW)
|
|
|
|
|
tasklet_schedule(&sp->task);
|
|
|
|
|
|
|
|
|
|
} else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s:Out of memory", sp->dev->name);
|
|
|
|
|
DBG_PRINT(ERR_DBG, " in Rx Intr!!\n");
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static irqreturn_t
|
|
|
|
|
s2io_msi_handle(int irq, void *dev_id, struct pt_regs *regs)
|
|
|
|
|
{
|
|
|
|
|
struct net_device *dev = (struct net_device *) dev_id;
|
|
|
|
|
nic_t *sp = dev->priv;
|
|
|
|
|
int i;
|
|
|
|
|
int ret;
|
|
|
|
|
mac_info_t *mac_control;
|
|
|
|
|
struct config_param *config;
|
|
|
|
|
|
|
|
|
@ -4012,35 +4054,8 @@ s2io_msi_handle(int irq, void *dev_id, struct pt_regs *regs)
|
|
|
|
|
* reallocate the buffers from the interrupt handler itself,
|
|
|
|
|
* else schedule a tasklet to reallocate the buffers.
|
|
|
|
|
*/
|
|
|
|
|
for (i = 0; i < config->rx_ring_num; i++) {
|
|
|
|
|
if (!sp->lro) {
|
|
|
|
|
int rxb_size = atomic_read(&sp->rx_bufs_left[i]);
|
|
|
|
|
int level = rx_buffer_level(sp, rxb_size, i);
|
|
|
|
|
|
|
|
|
|
if ((level == PANIC) && (!TASKLET_IN_USE)) {
|
|
|
|
|
DBG_PRINT(INTR_DBG, "%s: Rx BD hit ",
|
|
|
|
|
dev->name);
|
|
|
|
|
DBG_PRINT(INTR_DBG, "PANIC levels\n");
|
|
|
|
|
if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s:Out of memory",
|
|
|
|
|
dev->name);
|
|
|
|
|
DBG_PRINT(ERR_DBG, " in ISR!!\n");
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
atomic_dec(&sp->isr_cnt);
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
|
}
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
} else if (level == LOW) {
|
|
|
|
|
tasklet_schedule(&sp->task);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (fill_rx_buffers(sp, i) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s:Out of memory",
|
|
|
|
|
dev->name);
|
|
|
|
|
DBG_PRINT(ERR_DBG, " in Rx Intr!!\n");
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
for (i = 0; i < config->rx_ring_num; i++)
|
|
|
|
|
s2io_chk_rx_buffers(sp, i);
|
|
|
|
|
|
|
|
|
|
atomic_dec(&sp->isr_cnt);
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
@ -4051,39 +4066,13 @@ s2io_msix_ring_handle(int irq, void *dev_id, struct pt_regs *regs)
|
|
|
|
|
{
|
|
|
|
|
ring_info_t *ring = (ring_info_t *)dev_id;
|
|
|
|
|
nic_t *sp = ring->nic;
|
|
|
|
|
struct net_device *dev = (struct net_device *) dev_id;
|
|
|
|
|
int rxb_size, level, rng_n;
|
|
|
|
|
|
|
|
|
|
atomic_inc(&sp->isr_cnt);
|
|
|
|
|
|
|
|
|
|
rx_intr_handler(ring);
|
|
|
|
|
|
|
|
|
|
rng_n = ring->ring_no;
|
|
|
|
|
if (!sp->lro) {
|
|
|
|
|
rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
|
|
|
|
|
level = rx_buffer_level(sp, rxb_size, rng_n);
|
|
|
|
|
|
|
|
|
|
if ((level == PANIC) && (!TASKLET_IN_USE)) {
|
|
|
|
|
int ret;
|
|
|
|
|
DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
|
|
|
|
|
DBG_PRINT(INTR_DBG, "PANIC levels\n");
|
|
|
|
|
if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "Out of memory in %s",
|
|
|
|
|
__FUNCTION__);
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
|
}
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
} else if (level == LOW) {
|
|
|
|
|
tasklet_schedule(&sp->task);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name);
|
|
|
|
|
DBG_PRINT(ERR_DBG, " in Rx Intr!!\n");
|
|
|
|
|
}
|
|
|
|
|
s2io_chk_rx_buffers(sp, ring->ring_no);
|
|
|
|
|
|
|
|
|
|
atomic_dec(&sp->isr_cnt);
|
|
|
|
|
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -4248,37 +4237,8 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs)
|
|
|
|
|
* else schedule a tasklet to reallocate the buffers.
|
|
|
|
|
*/
|
|
|
|
|
#ifndef CONFIG_S2IO_NAPI
|
|
|
|
|
for (i = 0; i < config->rx_ring_num; i++) {
|
|
|
|
|
if (!sp->lro) {
|
|
|
|
|
int ret;
|
|
|
|
|
int rxb_size = atomic_read(&sp->rx_bufs_left[i]);
|
|
|
|
|
int level = rx_buffer_level(sp, rxb_size, i);
|
|
|
|
|
|
|
|
|
|
if ((level == PANIC) && (!TASKLET_IN_USE)) {
|
|
|
|
|
DBG_PRINT(INTR_DBG, "%s: Rx BD hit ",
|
|
|
|
|
dev->name);
|
|
|
|
|
DBG_PRINT(INTR_DBG, "PANIC levels\n");
|
|
|
|
|
if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s:Out of memory",
|
|
|
|
|
dev->name);
|
|
|
|
|
DBG_PRINT(ERR_DBG, " in ISR!!\n");
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
atomic_dec(&sp->isr_cnt);
|
|
|
|
|
writeq(org_mask, &bar0->general_int_mask);
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
|
}
|
|
|
|
|
clear_bit(0, (&sp->tasklet_status));
|
|
|
|
|
} else if (level == LOW) {
|
|
|
|
|
tasklet_schedule(&sp->task);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (fill_rx_buffers(sp, i) == -ENOMEM) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s:Out of memory",
|
|
|
|
|
dev->name);
|
|
|
|
|
DBG_PRINT(ERR_DBG, " in Rx intr!!\n");
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
for (i = 0; i < config->rx_ring_num; i++)
|
|
|
|
|
s2io_chk_rx_buffers(sp, i);
|
|
|
|
|
#endif
|
|
|
|
|
writeq(org_mask, &bar0->general_int_mask);
|
|
|
|
|
atomic_dec(&sp->isr_cnt);
|
|
|
|
@ -4308,6 +4268,8 @@ static void s2io_updt_stats(nic_t *sp)
|
|
|
|
|
if (cnt == 5)
|
|
|
|
|
break; /* Updt failed */
|
|
|
|
|
} while(1);
|
|
|
|
|
} else {
|
|
|
|
|
memset(sp->mac_control.stats_info, 0, sizeof(StatInfo_t));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -4942,7 +4904,8 @@ static int write_eeprom(nic_t * sp, int off, u64 data, int cnt)
|
|
|
|
|
}
|
|
|
|
|
static void s2io_vpd_read(nic_t *nic)
|
|
|
|
|
{
|
|
|
|
|
u8 vpd_data[256],data;
|
|
|
|
|
u8 *vpd_data;
|
|
|
|
|
u8 data;
|
|
|
|
|
int i=0, cnt, fail = 0;
|
|
|
|
|
int vpd_addr = 0x80;
|
|
|
|
|
|
|
|
|
@ -4955,6 +4918,10 @@ static void s2io_vpd_read(nic_t *nic)
|
|
|
|
|
vpd_addr = 0x50;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
vpd_data = kmalloc(256, GFP_KERNEL);
|
|
|
|
|
if (!vpd_data)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < 256; i +=4 ) {
|
|
|
|
|
pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
|
|
|
|
|
pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
|
|
|
|
@ -4977,6 +4944,7 @@ static void s2io_vpd_read(nic_t *nic)
|
|
|
|
|
memset(nic->product_name, 0, vpd_data[1]);
|
|
|
|
|
memcpy(nic->product_name, &vpd_data[3], vpd_data[1]);
|
|
|
|
|
}
|
|
|
|
|
kfree(vpd_data);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
@ -5295,7 +5263,7 @@ static int s2io_link_test(nic_t * sp, uint64_t * data)
|
|
|
|
|
else
|
|
|
|
|
*data = 0;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
return *data;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
@ -5753,6 +5721,19 @@ static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static u32 s2io_ethtool_op_get_tso(struct net_device *dev)
|
|
|
|
|
{
|
|
|
|
|
return (dev->features & NETIF_F_TSO) != 0;
|
|
|
|
|
}
|
|
|
|
|
static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data)
|
|
|
|
|
{
|
|
|
|
|
if (data)
|
|
|
|
|
dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
|
|
|
|
|
else
|
|
|
|
|
dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct ethtool_ops netdev_ethtool_ops = {
|
|
|
|
|
.get_settings = s2io_ethtool_gset,
|
|
|
|
@ -5773,8 +5754,8 @@ static struct ethtool_ops netdev_ethtool_ops = {
|
|
|
|
|
.get_sg = ethtool_op_get_sg,
|
|
|
|
|
.set_sg = ethtool_op_set_sg,
|
|
|
|
|
#ifdef NETIF_F_TSO
|
|
|
|
|
.get_tso = ethtool_op_get_tso,
|
|
|
|
|
.set_tso = ethtool_op_set_tso,
|
|
|
|
|
.get_tso = s2io_ethtool_op_get_tso,
|
|
|
|
|
.set_tso = s2io_ethtool_op_set_tso,
|
|
|
|
|
#endif
|
|
|
|
|
.get_ufo = ethtool_op_get_ufo,
|
|
|
|
|
.set_ufo = ethtool_op_set_ufo,
|
|
|
|
@ -6337,7 +6318,7 @@ static int s2io_card_up(nic_t * sp)
|
|
|
|
|
s2io_set_multicast(dev);
|
|
|
|
|
|
|
|
|
|
if (sp->lro) {
|
|
|
|
|
/* Initialize max aggregatable pkts based on MTU */
|
|
|
|
|
/* Initialize max aggregatable pkts per session based on MTU */
|
|
|
|
|
sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
|
|
|
|
|
/* Check if we can use(if specified) user provided value */
|
|
|
|
|
if (lro_max_pkts < sp->lro_max_aggr_per_sess)
|
|
|
|
@ -6438,7 +6419,7 @@ static void s2io_tx_watchdog(struct net_device *dev)
|
|
|
|
|
* @cksum : FCS checksum of the frame.
|
|
|
|
|
* @ring_no : the ring from which this RxD was extracted.
|
|
|
|
|
* Description:
|
|
|
|
|
* This function is called by the Tx interrupt serivce routine to perform
|
|
|
|
|
* This function is called by the Rx interrupt serivce routine to perform
|
|
|
|
|
* some OS related operations on the SKB before passing it to the upper
|
|
|
|
|
* layers. It mainly checks if the checksum is OK, if so adds it to the
|
|
|
|
|
* SKBs cksum variable, increments the Rx packet count and passes the SKB
|
|
|
|
@ -6698,33 +6679,6 @@ static void s2io_init_pci(nic_t * sp)
|
|
|
|
|
pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Raghavendra Koushik <raghavendra.koushik@neterion.com>");
|
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
MODULE_VERSION(DRV_VERSION);
|
|
|
|
|
|
|
|
|
|
module_param(tx_fifo_num, int, 0);
|
|
|
|
|
module_param(rx_ring_num, int, 0);
|
|
|
|
|
module_param(rx_ring_mode, int, 0);
|
|
|
|
|
module_param_array(tx_fifo_len, uint, NULL, 0);
|
|
|
|
|
module_param_array(rx_ring_sz, uint, NULL, 0);
|
|
|
|
|
module_param_array(rts_frm_len, uint, NULL, 0);
|
|
|
|
|
module_param(use_continuous_tx_intrs, int, 1);
|
|
|
|
|
module_param(rmac_pause_time, int, 0);
|
|
|
|
|
module_param(mc_pause_threshold_q0q3, int, 0);
|
|
|
|
|
module_param(mc_pause_threshold_q4q7, int, 0);
|
|
|
|
|
module_param(shared_splits, int, 0);
|
|
|
|
|
module_param(tmac_util_period, int, 0);
|
|
|
|
|
module_param(rmac_util_period, int, 0);
|
|
|
|
|
module_param(bimodal, bool, 0);
|
|
|
|
|
module_param(l3l4hdr_size, int , 0);
|
|
|
|
|
#ifndef CONFIG_S2IO_NAPI
|
|
|
|
|
module_param(indicate_max_pkts, int, 0);
|
|
|
|
|
#endif
|
|
|
|
|
module_param(rxsync_frequency, int, 0);
|
|
|
|
|
module_param(intr_type, int, 0);
|
|
|
|
|
module_param(lro, int, 0);
|
|
|
|
|
module_param(lro_max_pkts, int, 0);
|
|
|
|
|
|
|
|
|
|
static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type)
|
|
|
|
|
{
|
|
|
|
|
if ( tx_fifo_num > 8) {
|
|
|
|
@ -6832,8 +6786,8 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
|
|
|
|
|
}
|
|
|
|
|
if (dev_intr_type != MSI_X) {
|
|
|
|
|
if (pci_request_regions(pdev, s2io_driver_name)) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "Request Regions failed\n"),
|
|
|
|
|
pci_disable_device(pdev);
|
|
|
|
|
DBG_PRINT(ERR_DBG, "Request Regions failed\n");
|
|
|
|
|
pci_disable_device(pdev);
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
@ -6957,7 +6911,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
|
|
|
|
|
/* initialize the shared memory used by the NIC and the host */
|
|
|
|
|
if (init_shared_mem(sp)) {
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n",
|
|
|
|
|
__FUNCTION__);
|
|
|
|
|
dev->name);
|
|
|
|
|
ret = -ENOMEM;
|
|
|
|
|
goto mem_alloc_failed;
|
|
|
|
|
}
|
|
|
|
@ -7094,6 +7048,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
|
|
|
|
|
dev->addr_len = ETH_ALEN;
|
|
|
|
|
memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
|
|
|
|
|
|
|
|
|
|
/* reset Nic and bring it to known state */
|
|
|
|
|
s2io_reset(sp);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Initialize the tasklet status and link state flags
|
|
|
|
|
* and the card state parameter
|
|
|
|
@ -7131,11 +7088,11 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
|
|
|
|
|
goto register_failed;
|
|
|
|
|
}
|
|
|
|
|
s2io_vpd_read(sp);
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s: Neterion %s",dev->name, sp->product_name);
|
|
|
|
|
DBG_PRINT(ERR_DBG, "(rev %d), Driver version %s\n",
|
|
|
|
|
get_xena_rev_id(sp->pdev),
|
|
|
|
|
s2io_driver_version);
|
|
|
|
|
DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2005 Neterion Inc.\n");
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name,
|
|
|
|
|
sp->product_name, get_xena_rev_id(sp->pdev));
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
|
|
|
|
|
s2io_driver_version);
|
|
|
|
|
DBG_PRINT(ERR_DBG, "%s: MAC ADDR: "
|
|
|
|
|
"%02x:%02x:%02x:%02x:%02x:%02x\n", dev->name,
|
|
|
|
|
sp->def_mac_addr[0].mac_addr[0],
|
|
|
|
@ -7436,8 +7393,13 @@ static int verify_l3_l4_lro_capable(lro_t *l_lro, struct iphdr *ip,
|
|
|
|
|
if (ip->ihl != 5) /* IP has options */
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
/* If we see CE codepoint in IP header, packet is not mergeable */
|
|
|
|
|
if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
/* If we see ECE or CWR flags in TCP header, packet is not mergeable */
|
|
|
|
|
if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin ||
|
|
|
|
|
!tcp->ack) {
|
|
|
|
|
tcp->ece || tcp->cwr || !tcp->ack) {
|
|
|
|
|
/*
|
|
|
|
|
* Currently recognize only the ack control word and
|
|
|
|
|
* any other control field being set would result in
|
|
|
|
@ -7591,18 +7553,16 @@ static void queue_rx_frame(struct sk_buff *skb)
|
|
|
|
|
static void lro_append_pkt(nic_t *sp, lro_t *lro, struct sk_buff *skb,
|
|
|
|
|
u32 tcp_len)
|
|
|
|
|
{
|
|
|
|
|
struct sk_buff *tmp, *first = lro->parent;
|
|
|
|
|
struct sk_buff *first = lro->parent;
|
|
|
|
|
|
|
|
|
|
first->len += tcp_len;
|
|
|
|
|
first->data_len = lro->frags_len;
|
|
|
|
|
skb_pull(skb, (skb->len - tcp_len));
|
|
|
|
|
if ((tmp = skb_shinfo(first)->frag_list)) {
|
|
|
|
|
while (tmp->next)
|
|
|
|
|
tmp = tmp->next;
|
|
|
|
|
tmp->next = skb;
|
|
|
|
|
}
|
|
|
|
|
if (skb_shinfo(first)->frag_list)
|
|
|
|
|
lro->last_frag->next = skb;
|
|
|
|
|
else
|
|
|
|
|
skb_shinfo(first)->frag_list = skb;
|
|
|
|
|
lro->last_frag = skb;
|
|
|
|
|
sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|