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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next

Browse source 
Conflicts:
	drivers/net/ethernet/intel/e1000e/netdev.c
This commit is contained in:
David S. Miller 2011-08-20 17:25:36 -07:00
commit ca1ba7caa6
7 changed files with 454 additions and 368 deletions
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3
drivers/net/ethernet/intel/e1000e/e1000.h
View file

@ -461,8 +461,9 @@ struct e1000_info {
#define E1000_RX_DESC_PS(R, i) \
(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
#define E1000_RX_DESC_EXT(R, i) \
(&(((union e1000_rx_desc_extended *)((R).desc))[i]))
#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc)
#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)

9
drivers/net/ethernet/intel/e1000e/ethtool.c
View file

@ -1195,7 +1195,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
goto err_nomem;
}
rx_ring->size = rx_ring->count * sizeof(struct e1000_rx_desc);
rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
&rx_ring->dma, GFP_KERNEL);
if (!rx_ring->desc) {
@ -1221,7 +1221,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
ew32(RCTL, rctl);
for (i = 0; i < rx_ring->count; i++) {
struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rx_ring, i);
union e1000_rx_desc_extended *rx_desc;
struct sk_buff *skb;
skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
@ -1239,8 +1239,9 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
ret_val = 8;
goto err_nomem;
}
rx_desc->buffer_addr =
cpu_to_le64(rx_ring->buffer_info[i].dma);
rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
rx_desc->read.buffer_addr =
cpu_to_le64(rx_ring->buffer_info[i].dma);
memset(skb->data, 0x00, skb->len);
}

199
drivers/net/ethernet/intel/e1000e/netdev.c
View file

@ -56,7 +56,7 @@
#define DRV_EXTRAVERSION "-k"
#define DRV_VERSION "1.4.4" DRV_EXTRAVERSION
#define DRV_VERSION "1.5.1" DRV_EXTRAVERSION
char e1000e_driver_name[] = "e1000e";
const char e1000e_driver_version[] = DRV_VERSION;
@ -192,7 +192,7 @@ static void e1000e_dump(struct e1000_adapter *adapter)
struct e1000_buffer *buffer_info;
struct e1000_ring *rx_ring = adapter->rx_ring;
union e1000_rx_desc_packet_split *rx_desc_ps;
struct e1000_rx_desc *rx_desc;
union e1000_rx_desc_extended *rx_desc;
struct my_u1 {
u64 a;
u64 b;
@ -399,41 +399,70 @@ static void e1000e_dump(struct e1000_adapter *adapter)
break;
default:
case 0:
/* Legacy Receive Descriptor Format
/* Extended Receive Descriptor (Read) Format
*
* +-----------------------------------------------------+
* | Buffer Address [63:0] |
* +-----------------------------------------------------+
* | VLAN Tag | Errors | Status 0 | Packet csum | Length |
* +-----------------------------------------------------+
* 63 48 47 40 39 32 31 16 15 0
* +-----------------------------------------------------+
* 0 | Buffer Address [63:0] |
* +-----------------------------------------------------+
* 8 | Reserved |
* +-----------------------------------------------------+
*/
printk(KERN_INFO "Rl[desc] [address 63:0 ] "
"[vl er S cks ln] [bi->dma ] [bi->skb] "
"<-- Legacy format\n");
for (i = 0; rx_ring->desc && (i < rx_ring->count); i++) {
rx_desc = E1000_RX_DESC(*rx_ring, i);
printk(KERN_INFO "R [desc] [buf addr 63:0 ] "
"[reserved 63:0 ] [bi->dma ] "
"[bi->skb] <-- Ext (Read) format\n");
/* Extended Receive Descriptor (Write-Back) Format
*
* 63 48 47 32 31 24 23 4 3 0
* +------------------------------------------------------+
* | RSS Hash | | | |
* 0 +-------------------+ Rsvd | Reserved | MRQ RSS |
* | Packet | IP | | | Type |
* | Checksum | Ident | | | |
* +------------------------------------------------------+
* 8 | VLAN Tag | Length | Extended Error | Extended Status |
* +------------------------------------------------------+
* 63 48 47 32 31 20 19 0
*/
printk(KERN_INFO "RWB[desc] [cs ipid mrq] "
"[vt ln xe xs] "
"[bi->skb] <-- Ext (Write-Back) format\n");
for (i = 0; i < rx_ring->count; i++) {
buffer_info = &rx_ring->buffer_info[i];
u0 = (struct my_u0 *)rx_desc;
printk(KERN_INFO "Rl[0x%03X] %016llX %016llX "
"%016llX %p", i,
(unsigned long long)le64_to_cpu(u0->a),
(unsigned long long)le64_to_cpu(u0->b),
(unsigned long long)buffer_info->dma,
buffer_info->skb);
rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
u1 = (struct my_u1 *)rx_desc;
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
if (staterr & E1000_RXD_STAT_DD) {
/* Descriptor Done */
printk(KERN_INFO "RWB[0x%03X] %016llX "
"%016llX ---------------- %p", i,
(unsigned long long)le64_to_cpu(u1->a),
(unsigned long long)le64_to_cpu(u1->b),
buffer_info->skb);
} else {
printk(KERN_INFO "R [0x%03X] %016llX "
"%016llX %016llX %p", i,
(unsigned long long)le64_to_cpu(u1->a),
(unsigned long long)le64_to_cpu(u1->b),
(unsigned long long)buffer_info->dma,
buffer_info->skb);
if (netif_msg_pktdata(adapter))
print_hex_dump(KERN_INFO, "",
DUMP_PREFIX_ADDRESS, 16,
1,
phys_to_virt
(buffer_info->dma),
adapter->rx_buffer_len,
true);
}
if (i == rx_ring->next_to_use)
printk(KERN_CONT " NTU\n");
else if (i == rx_ring->next_to_clean)
printk(KERN_CONT " NTC\n");
else
printk(KERN_CONT "\n");
if (netif_msg_pktdata(adapter))
print_hex_dump(KERN_INFO, "",
DUMP_PREFIX_ADDRESS,
16, 1,
phys_to_virt(buffer_info->dma),
adapter->rx_buffer_len, true);
}
}
@ -576,7 +605,7 @@ static void e1000e_update_tdt_wa(struct e1000_adapter *adapter, unsigned int i)
}
/**
* e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
* e1000_alloc_rx_buffers - Replace used receive buffers
* @adapter: address of board private structure
**/
static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
@ -585,7 +614,7 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_ring *rx_ring = adapter->rx_ring;
struct e1000_rx_desc *rx_desc;
union e1000_rx_desc_extended *rx_desc;
struct e1000_buffer *buffer_info;
struct sk_buff *skb;
unsigned int i;
@ -619,8 +648,8 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
break;
}
rx_desc = E1000_RX_DESC(*rx_ring, i);
rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
rx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
if (unlikely(!(i & (E1000_RX_BUFFER_WRITE - 1)))) {
/*
@ -761,7 +790,7 @@ static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
{
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_rx_desc *rx_desc;
union e1000_rx_desc_extended *rx_desc;
struct e1000_ring *rx_ring = adapter->rx_ring;
struct e1000_buffer *buffer_info;
struct sk_buff *skb;
@ -802,8 +831,8 @@ static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
PAGE_SIZE,
DMA_FROM_DEVICE);
rx_desc = E1000_RX_DESC(*rx_ring, i);
rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
rx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
if (unlikely(++i == rx_ring->count))
i = 0;
@ -841,28 +870,27 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
struct pci_dev *pdev = adapter->pdev;
struct e1000_hw *hw = &adapter->hw;
struct e1000_ring *rx_ring = adapter->rx_ring;
struct e1000_rx_desc *rx_desc, *next_rxd;
union e1000_rx_desc_extended *rx_desc, *next_rxd;
struct e1000_buffer *buffer_info, *next_buffer;
u32 length;
u32 length, staterr;
unsigned int i;
int cleaned_count = 0;
bool cleaned = 0;
unsigned int total_rx_bytes = 0, total_rx_packets = 0;
i = rx_ring->next_to_clean;
rx_desc = E1000_RX_DESC(*rx_ring, i);
rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
buffer_info = &rx_ring->buffer_info[i];
while (rx_desc->status & E1000_RXD_STAT_DD) {
while (staterr & E1000_RXD_STAT_DD) {
struct sk_buff *skb;
u8 status;
if (*work_done >= work_to_do)
break;
(*work_done)++;
rmb(); /* read descriptor and rx_buffer_info after status DD */
status = rx_desc->status;
skb = buffer_info->skb;
buffer_info->skb = NULL;
@ -871,7 +899,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
i++;
if (i == rx_ring->count)
i = 0;
next_rxd = E1000_RX_DESC(*rx_ring, i);
next_rxd = E1000_RX_DESC_EXT(*rx_ring, i);
prefetch(next_rxd);
next_buffer = &rx_ring->buffer_info[i];
@ -884,7 +912,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
DMA_FROM_DEVICE);
buffer_info->dma = 0;
length = le16_to_cpu(rx_desc->length);
length = le16_to_cpu(rx_desc->wb.upper.length);
/*
* !EOP means multiple descriptors were used to store a single
@ -893,7 +921,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
* next frame that _does_ have the EOP bit set, as it is by
* definition only a frame fragment
*/
if (unlikely(!(status & E1000_RXD_STAT_EOP)))
if (unlikely(!(staterr & E1000_RXD_STAT_EOP)))
adapter->flags2 |= FLAG2_IS_DISCARDING;
if (adapter->flags2 & FLAG2_IS_DISCARDING) {
@ -901,12 +929,12 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
e_dbg("Receive packet consumed multiple buffers\n");
/* recycle */
buffer_info->skb = skb;
if (status & E1000_RXD_STAT_EOP)
if (staterr & E1000_RXD_STAT_EOP)
adapter->flags2 &= ~FLAG2_IS_DISCARDING;
goto next_desc;
}
if (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK) {
if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) {
/* recycle */
buffer_info->skb = skb;
goto next_desc;
@ -944,15 +972,15 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
skb_put(skb, length);
/* Receive Checksum Offload */
e1000_rx_checksum(adapter,
(u32)(status) |
((u32)(rx_desc->errors) << 24),
le16_to_cpu(rx_desc->csum), skb);
e1000_rx_checksum(adapter, staterr,
le16_to_cpu(rx_desc->wb.lower.hi_dword.
csum_ip.csum), skb);
e1000_receive_skb(adapter, netdev, skb,status,rx_desc->special);
e1000_receive_skb(adapter, netdev, skb, staterr,
rx_desc->wb.upper.vlan);
next_desc:
rx_desc->status = 0;
rx_desc->wb.upper.status_error &= cpu_to_le32(~0xFF);
/* return some buffers to hardware, one at a time is too slow */
if (cleaned_count >= E1000_RX_BUFFER_WRITE) {
@ -964,6 +992,8 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
/* use prefetched values */
rx_desc = next_rxd;
buffer_info = next_buffer;
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
}
rx_ring->next_to_clean = i;
@ -1347,35 +1377,34 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_ring *rx_ring = adapter->rx_ring;
struct e1000_rx_desc *rx_desc, *next_rxd;
union e1000_rx_desc_extended *rx_desc, *next_rxd;
struct e1000_buffer *buffer_info, *next_buffer;
u32 length;
u32 length, staterr;
unsigned int i;
int cleaned_count = 0;
bool cleaned = false;
unsigned int total_rx_bytes=0, total_rx_packets=0;
i = rx_ring->next_to_clean;
rx_desc = E1000_RX_DESC(*rx_ring, i);
rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
buffer_info = &rx_ring->buffer_info[i];
while (rx_desc->status & E1000_RXD_STAT_DD) {
while (staterr & E1000_RXD_STAT_DD) {
struct sk_buff *skb;
u8 status;
if (*work_done >= work_to_do)
break;
(*work_done)++;
rmb(); /* read descriptor and rx_buffer_info after status DD */
status = rx_desc->status;
skb = buffer_info->skb;
buffer_info->skb = NULL;
++i;
if (i == rx_ring->count)
i = 0;
next_rxd = E1000_RX_DESC(*rx_ring, i);
next_rxd = E1000_RX_DESC_EXT(*rx_ring, i);
prefetch(next_rxd);
next_buffer = &rx_ring->buffer_info[i];
@ -1386,23 +1415,22 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
DMA_FROM_DEVICE);
buffer_info->dma = 0;
length = le16_to_cpu(rx_desc->length);
length = le16_to_cpu(rx_desc->wb.upper.length);
/* errors is only valid for DD + EOP descriptors */
if (unlikely((status & E1000_RXD_STAT_EOP) &&
(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) {
/* recycle both page and skb */
buffer_info->skb = skb;
/* an error means any chain goes out the window
* too */
if (rx_ring->rx_skb_top)
dev_kfree_skb_irq(rx_ring->rx_skb_top);
rx_ring->rx_skb_top = NULL;
goto next_desc;
if (unlikely((staterr & E1000_RXD_STAT_EOP) &&
(staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK))) {
/* recycle both page and skb */
buffer_info->skb = skb;
/* an error means any chain goes out the window too */
if (rx_ring->rx_skb_top)
dev_kfree_skb_irq(rx_ring->rx_skb_top);
rx_ring->rx_skb_top = NULL;
goto next_desc;
}
#define rxtop (rx_ring->rx_skb_top)
if (!(status & E1000_RXD_STAT_EOP)) {
if (!(staterr & E1000_RXD_STAT_EOP)) {
/* this descriptor is only the beginning (or middle) */
if (!rxtop) {
/* this is the beginning of a chain */
@ -1457,10 +1485,9 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
}
/* Receive Checksum Offload XXX recompute due to CRC strip? */
e1000_rx_checksum(adapter,
(u32)(status) |
((u32)(rx_desc->errors) << 24),
le16_to_cpu(rx_desc->csum), skb);
e1000_rx_checksum(adapter, staterr,
le16_to_cpu(rx_desc->wb.lower.hi_dword.
csum_ip.csum), skb);
/* probably a little skewed due to removing CRC */
total_rx_bytes += skb->len;
@ -1473,11 +1500,11 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
goto next_desc;
}
e1000_receive_skb(adapter, netdev, skb, status,
rx_desc->special);
e1000_receive_skb(adapter, netdev, skb, staterr,
rx_desc->wb.upper.vlan);
next_desc:
rx_desc->status = 0;
rx_desc->wb.upper.status_error &= cpu_to_le32(~0xFF);
/* return some buffers to hardware, one at a time is too slow */
if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
@ -1489,6 +1516,8 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
/* use prefetched values */
rx_desc = next_rxd;
buffer_info = next_buffer;
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
}
rx_ring->next_to_clean = i;
@ -2887,6 +2916,10 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
break;
}
/* Enable Extended Status in all Receive Descriptors */
rfctl = er32(RFCTL);
rfctl |= E1000_RFCTL_EXTEN;
/*
* 82571 and greater support packet-split where the protocol
* header is placed in skb->data and the packet data is
@ -2912,9 +2945,6 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
if (adapter->rx_ps_pages) {
u32 psrctl = 0;
/* Configure extra packet-split registers */
rfctl = er32(RFCTL);
rfctl |= E1000_RFCTL_EXTEN;
/*
* disable packet split support for IPv6 extension headers,
* because some malformed IPv6 headers can hang the Rx
@ -2922,8 +2952,6 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
rfctl |= (E1000_RFCTL_IPV6_EX_DIS |
E1000_RFCTL_NEW_IPV6_EXT_DIS);
ew32(RFCTL, rfctl);
/* Enable Packet split descriptors */
rctl |= E1000_RCTL_DTYP_PS;
@ -2946,6 +2974,7 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
ew32(PSRCTL, psrctl);
}
ew32(RFCTL, rfctl);
ew32(RCTL, rctl);
/* just started the receive unit, no need to restart */
adapter->flags &= ~FLAG_RX_RESTART_NOW;
@ -2971,11 +3000,11 @@ static void e1000_configure_rx(struct e1000_adapter *adapter)
adapter->clean_rx = e1000_clean_rx_irq_ps;
adapter->alloc_rx_buf = e1000_alloc_rx_buffers_ps;
} else if (adapter->netdev->mtu > ETH_FRAME_LEN + ETH_FCS_LEN) {
rdlen = rx_ring->count * sizeof(struct e1000_rx_desc);
rdlen = rx_ring->count * sizeof(union e1000_rx_desc_extended);
adapter->clean_rx = e1000_clean_jumbo_rx_irq;
adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers;
} else {
rdlen = rx_ring->count * sizeof(struct e1000_rx_desc);
rdlen = rx_ring->count * sizeof(union e1000_rx_desc_extended);
adapter->clean_rx = e1000_clean_rx_irq;
adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
}

27
drivers/net/ethernet/intel/ixgbe/ixgbe.h
View file

@ -91,13 +91,16 @@
#define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */
#define IXGBE_TX_FLAGS_CSUM (u32)(1)
#define IXGBE_TX_FLAGS_VLAN (u32)(1 << 1)
#define IXGBE_TX_FLAGS_TSO (u32)(1 << 2)
#define IXGBE_TX_FLAGS_IPV4 (u32)(1 << 3)
#define IXGBE_TX_FLAGS_FCOE (u32)(1 << 4)
#define IXGBE_TX_FLAGS_FSO (u32)(1 << 5)
#define IXGBE_TX_FLAGS_HW_VLAN (u32)(1 << 1)
#define IXGBE_TX_FLAGS_SW_VLAN (u32)(1 << 2)
#define IXGBE_TX_FLAGS_TSO (u32)(1 << 3)
#define IXGBE_TX_FLAGS_IPV4 (u32)(1 << 4)
#define IXGBE_TX_FLAGS_FCOE (u32)(1 << 5)
#define IXGBE_TX_FLAGS_FSO (u32)(1 << 6)
#define IXGBE_TX_FLAGS_MAPPED_AS_PAGE (u32)(1 << 7)
#define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
#define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0x0000e000
#define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
#define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29
#define IXGBE_TX_FLAGS_VLAN_SHIFT 16
#define IXGBE_MAX_RSC_INT_RATE 162760
@ -141,14 +144,14 @@ struct vf_macvlans {
/* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer */
struct ixgbe_tx_buffer {
struct sk_buff *skb;
dma_addr_t dma;
union ixgbe_adv_tx_desc *next_to_watch;
unsigned long time_stamp;
u16 length;
u16 next_to_watch;
unsigned int bytecount;
dma_addr_t dma;
u32 length;
u32 tx_flags;
struct sk_buff *skb;
u32 bytecount;
u16 gso_segs;
u8 mapped_as_page;
};
struct ixgbe_rx_buffer {

2
drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
View file

@ -414,7 +414,7 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
u8 prio_tc[MAX_TRAFFIC_CLASS] = {0, 1, 2, 3, 4, 5, 6, 7};
int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
#ifdef CONFIG_FCOE
#ifdef IXGBE_FCOE
if (adapter->netdev->features & NETIF_F_FCOE_MTU)
max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
#endif

10
drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
View file

@ -241,10 +241,12 @@ static int ixgbe_fcoe_ddp_setup(struct net_device *netdev, u16 xid,
*/
if (lastsize == bufflen) {
if (j >= IXGBE_BUFFCNT_MAX) {
e_err(drv, "xid=%x:%d,%d,%d:addr=%llx "
"not enough user buffers. We need an extra "
"buffer because lastsize is bufflen.\n",
xid, i, j, dmacount, (u64)addr);
printk_once("Will NOT use DDP since there are not "
"enough user buffers. We need an extra "
"buffer because lastsize is bufflen. "
"xid=%x:%d,%d,%d:addr=%llx\n",
xid, i, j, dmacount, (u64)addr);
goto out_noddp_free;
}

572
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View file

@ -385,7 +385,7 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
tx_ring = adapter->tx_ring[n];
tx_buffer_info =
&tx_ring->tx_buffer_info[tx_ring->next_to_clean];
pr_info(" %5d %5X %5X %016llX %04X %3X %016llX\n",
pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n",
n, tx_ring->next_to_use, tx_ring->next_to_clean,
(u64)tx_buffer_info->dma,
tx_buffer_info->length,
@ -424,7 +424,7 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
tx_buffer_info = &tx_ring->tx_buffer_info[i];
u0 = (struct my_u0 *)tx_desc;
pr_info("T [0x%03X] %016llX %016llX %016llX"
" %04X %3X %016llX %p", i,
" %04X %p %016llX %p", i,
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
(u64)tx_buffer_info->dma,
@ -643,27 +643,31 @@ static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter,
}
}
static inline void ixgbe_unmap_tx_resource(struct ixgbe_ring *ring,
struct ixgbe_tx_buffer *tx_buffer)
{
if (tx_buffer->dma) {
if (tx_buffer->tx_flags & IXGBE_TX_FLAGS_MAPPED_AS_PAGE)
dma_unmap_page(ring->dev,
tx_buffer->dma,
tx_buffer->length,
DMA_TO_DEVICE);
else
dma_unmap_single(ring->dev,
tx_buffer->dma,
tx_buffer->length,
DMA_TO_DEVICE);
}
tx_buffer->dma = 0;
}
void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *tx_ring,
struct ixgbe_tx_buffer *tx_buffer_info)
{
if (tx_buffer_info->dma) {
if (tx_buffer_info->mapped_as_page)
dma_unmap_page(tx_ring->dev,
tx_buffer_info->dma,
tx_buffer_info->length,
DMA_TO_DEVICE);
else
dma_unmap_single(tx_ring->dev,
tx_buffer_info->dma,
tx_buffer_info->length,
DMA_TO_DEVICE);
tx_buffer_info->dma = 0;
}
if (tx_buffer_info->skb) {
ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info);
if (tx_buffer_info->skb)
dev_kfree_skb_any(tx_buffer_info->skb);
tx_buffer_info->skb = NULL;
}
tx_buffer_info->time_stamp = 0;
tx_buffer_info->skb = NULL;
/* tx_buffer_info must be completely set up in the transmit path */
}
@ -797,56 +801,72 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
struct ixgbe_ring *tx_ring)
{
struct ixgbe_adapter *adapter = q_vector->adapter;
union ixgbe_adv_tx_desc *tx_desc, *eop_desc;
struct ixgbe_tx_buffer *tx_buffer_info;
struct ixgbe_tx_buffer *tx_buffer;
union ixgbe_adv_tx_desc *tx_desc;
unsigned int total_bytes = 0, total_packets = 0;
u16 i, eop, count = 0;
u16 i = tx_ring->next_to_clean;
u16 count;
i = tx_ring->next_to_clean;
eop = tx_ring->tx_buffer_info[i].next_to_watch;
eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop);
tx_buffer = &tx_ring->tx_buffer_info[i];
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
while ((eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)) &&
(count < q_vector->tx.work_limit)) {
bool cleaned = false;
rmb(); /* read buffer_info after eop_desc */
for ( ; !cleaned; count++) {
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
tx_buffer_info = &tx_ring->tx_buffer_info[i];
for (count = 0; count < q_vector->tx.work_limit; count++) {
union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch;
/* if next_to_watch is not set then there is no work pending */
if (!eop_desc)
break;
/* if DD is not set pending work has not been completed */
if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
break;
/* count the packet as being completed */
tx_ring->tx_stats.completed++;
/* clear next_to_watch to prevent false hangs */
tx_buffer->next_to_watch = NULL;
/* prevent any other reads prior to eop_desc being verified */
rmb();
do {
ixgbe_unmap_tx_resource(tx_ring, tx_buffer);
tx_desc->wb.status = 0;
cleaned = (i == eop);
if (likely(tx_desc == eop_desc)) {
eop_desc = NULL;
dev_kfree_skb_any(tx_buffer->skb);
tx_buffer->skb = NULL;
i++;
if (i == tx_ring->count)
i = 0;
if (cleaned && tx_buffer_info->skb) {
total_bytes += tx_buffer_info->bytecount;
total_packets += tx_buffer_info->gso_segs;
total_bytes += tx_buffer->bytecount;
total_packets += tx_buffer->gso_segs;
}
ixgbe_unmap_and_free_tx_resource(tx_ring,
tx_buffer_info);
}
tx_buffer++;
tx_desc++;
i++;
if (unlikely(i == tx_ring->count)) {
i = 0;
tx_ring->tx_stats.completed++;
eop = tx_ring->tx_buffer_info[i].next_to_watch;
eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop);
tx_buffer = tx_ring->tx_buffer_info;
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0);
}
} while (eop_desc);
}
tx_ring->next_to_clean = i;
u64_stats_update_begin(&tx_ring->syncp);
tx_ring->stats.bytes += total_bytes;
tx_ring->stats.packets += total_packets;
u64_stats_update_begin(&tx_ring->syncp);
u64_stats_update_end(&tx_ring->syncp);
q_vector->tx.total_bytes += total_bytes;
q_vector->tx.total_packets += total_packets;
u64_stats_update_end(&tx_ring->syncp);
if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) {
/* schedule immediate reset if we believe we hung */
struct ixgbe_hw *hw = &adapter->hw;
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, eop);
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
e_err(drv, "Detected Tx Unit Hang\n"
" Tx Queue <%d>\n"
" TDH, TDT <%x>, <%x>\n"
@ -858,8 +878,8 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
tx_ring->queue_index,
IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)),
IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)),
tx_ring->next_to_use, eop,
tx_ring->tx_buffer_info[eop].time_stamp, jiffies);
tx_ring->next_to_use, i,
tx_ring->tx_buffer_info[i].time_stamp, jiffies);
netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
@ -3597,7 +3617,7 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter)
/* reconfigure the hardware */
if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) {
#ifdef CONFIG_FCOE
#ifdef IXGBE_FCOE
if (adapter->netdev->features & NETIF_F_FCOE_MTU)
max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
#endif
@ -6351,7 +6371,7 @@ static bool ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
u32 type_tucmd = 0;
if (skb->ip_summed != CHECKSUM_PARTIAL) {
if (!(tx_flags & IXGBE_TX_FLAGS_VLAN))
if (!(tx_flags & IXGBE_TX_FLAGS_HW_VLAN))
return false;
} else {
u8 l4_hdr = 0;
@ -6408,90 +6428,161 @@ static bool ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
return (skb->ip_summed == CHECKSUM_PARTIAL);
}
static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
struct ixgbe_ring *tx_ring,
struct sk_buff *skb, u32 tx_flags,
unsigned int first, const u8 hdr_len)
static __le32 ixgbe_tx_cmd_type(u32 tx_flags)
{
/* set type for advanced descriptor with frame checksum insertion */
__le32 cmd_type = cpu_to_le32(IXGBE_ADVTXD_DTYP_DATA |
IXGBE_ADVTXD_DCMD_IFCS |
IXGBE_ADVTXD_DCMD_DEXT);
/* set HW vlan bit if vlan is present */
if (tx_flags & IXGBE_TX_FLAGS_HW_VLAN)
cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_VLE);
/* set segmentation enable bits for TSO/FSO */
#ifdef IXGBE_FCOE
if ((tx_flags & IXGBE_TX_FLAGS_TSO) || (tx_flags & IXGBE_TX_FLAGS_FSO))
#else
if (tx_flags & IXGBE_TX_FLAGS_TSO)
#endif
cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_TSE);
return cmd_type;
}
static __le32 ixgbe_tx_olinfo_status(u32 tx_flags, unsigned int paylen)
{
__le32 olinfo_status =
cpu_to_le32(paylen << IXGBE_ADVTXD_PAYLEN_SHIFT);
if (tx_flags & IXGBE_TX_FLAGS_TSO) {
olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM |
(1 << IXGBE_ADVTXD_IDX_SHIFT));
/* enble IPv4 checksum for TSO */
if (tx_flags & IXGBE_TX_FLAGS_IPV4)
olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_IXSM);
}
/* enable L4 checksum for TSO and TX checksum offload */
if (tx_flags & IXGBE_TX_FLAGS_CSUM)
olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM);
#ifdef IXGBE_FCOE
/* use index 1 context for FCOE/FSO */
if (tx_flags & IXGBE_TX_FLAGS_FCOE)
olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_CC |
(1 << IXGBE_ADVTXD_IDX_SHIFT));
#endif
return olinfo_status;
}
#define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \
IXGBE_TXD_CMD_RS)
static void ixgbe_tx_map(struct ixgbe_ring *tx_ring,
struct sk_buff *skb,
struct ixgbe_tx_buffer *first,
u32 tx_flags,
const u8 hdr_len)
{
struct device *dev = tx_ring->dev;
struct ixgbe_tx_buffer *tx_buffer_info;
unsigned int len;
unsigned int total = skb->len;
unsigned int offset = 0, size, count = 0;
unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
unsigned int f;
unsigned int bytecount = skb->len;
u16 gso_segs = 1;
u16 i;
union ixgbe_adv_tx_desc *tx_desc;
dma_addr_t dma;
__le32 cmd_type, olinfo_status;
struct skb_frag_struct *frag;
unsigned int f = 0;
unsigned int data_len = skb->data_len;
unsigned int size = skb_headlen(skb);
u32 offset = 0;
u32 paylen = skb->len - hdr_len;
u16 i = tx_ring->next_to_use;
u16 gso_segs;
i = tx_ring->next_to_use;
if (tx_flags & IXGBE_TX_FLAGS_FCOE)
/* excluding fcoe_crc_eof for FCoE */
total -= sizeof(struct fcoe_crc_eof);
len = min(skb_headlen(skb), total);
while (len) {
tx_buffer_info = &tx_ring->tx_buffer_info[i];
size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD);
tx_buffer_info->length = size;
tx_buffer_info->mapped_as_page = false;
tx_buffer_info->dma = dma_map_single(dev,
skb->data + offset,
size, DMA_TO_DEVICE);
if (dma_mapping_error(dev, tx_buffer_info->dma))
goto dma_error;
tx_buffer_info->time_stamp = jiffies;
tx_buffer_info->next_to_watch = i;
len -= size;
total -= size;
offset += size;
count++;
if (len) {
i++;
if (i == tx_ring->count)
i = 0;
#ifdef IXGBE_FCOE
if (tx_flags & IXGBE_TX_FLAGS_FCOE) {
if (data_len >= sizeof(struct fcoe_crc_eof)) {
data_len -= sizeof(struct fcoe_crc_eof);
} else {
size -= sizeof(struct fcoe_crc_eof) - data_len;
data_len = 0;
}
}
for (f = 0; f < nr_frags; f++) {
struct skb_frag_struct *frag;
#endif
dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE);
if (dma_mapping_error(dev, dma))
goto dma_error;
cmd_type = ixgbe_tx_cmd_type(tx_flags);
olinfo_status = ixgbe_tx_olinfo_status(tx_flags, paylen);
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
for (;;) {
while (size > IXGBE_MAX_DATA_PER_TXD) {
tx_desc->read.buffer_addr = cpu_to_le64(dma + offset);
tx_desc->read.cmd_type_len =
cmd_type | cpu_to_le32(IXGBE_MAX_DATA_PER_TXD);
tx_desc->read.olinfo_status = olinfo_status;
offset += IXGBE_MAX_DATA_PER_TXD;
size -= IXGBE_MAX_DATA_PER_TXD;
tx_desc++;
i++;
if (i == tx_ring->count) {
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0);
i = 0;
}
}
tx_buffer_info = &tx_ring->tx_buffer_info[i];
tx_buffer_info->length = offset + size;
tx_buffer_info->tx_flags = tx_flags;
tx_buffer_info->dma = dma;
tx_desc->read.buffer_addr = cpu_to_le64(dma + offset);
tx_desc->read.cmd_type_len = cmd_type | cpu_to_le32(size);
tx_desc->read.olinfo_status = olinfo_status;
if (!data_len)
break;
frag = &skb_shinfo(skb)->frags[f];
len = min((unsigned int)frag->size, total);
offset = frag->page_offset;
#ifdef IXGBE_FCOE
size = min_t(unsigned int, data_len, frag->size);
#else
size = frag->size;
#endif
data_len -= size;
f++;
while (len) {
i++;
if (i == tx_ring->count)
i = 0;
offset = 0;
tx_flags |= IXGBE_TX_FLAGS_MAPPED_AS_PAGE;
tx_buffer_info = &tx_ring->tx_buffer_info[i];
size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD);
dma = dma_map_page(dev, frag->page, frag->page_offset,
size, DMA_TO_DEVICE);
if (dma_mapping_error(dev, dma))
goto dma_error;
tx_buffer_info->length = size;
tx_buffer_info->dma = dma_map_page(dev,
frag->page,
offset, size,
DMA_TO_DEVICE);
tx_buffer_info->mapped_as_page = true;
if (dma_mapping_error(dev, tx_buffer_info->dma))
goto dma_error;
tx_buffer_info->time_stamp = jiffies;
tx_buffer_info->next_to_watch = i;
len -= size;
total -= size;
offset += size;
count++;
tx_desc++;
i++;
if (i == tx_ring->count) {
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0);
i = 0;
}
if (total == 0)
break;
}
tx_desc->read.cmd_type_len |= cpu_to_le32(IXGBE_TXD_CMD);
i++;
if (i == tx_ring->count)
i = 0;
tx_ring->next_to_use = i;
if (tx_flags & IXGBE_TX_FLAGS_TSO)
gso_segs = skb_shinfo(skb)->gso_segs;
#ifdef IXGBE_FCOE
@ -6500,93 +6591,16 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
gso_segs = DIV_ROUND_UP(skb->len - hdr_len,
skb_shinfo(skb)->gso_size);
#endif /* IXGBE_FCOE */
bytecount += (gso_segs - 1) * hdr_len;
else
gso_segs = 1;
/* multiply data chunks by size of headers */
tx_ring->tx_buffer_info[i].bytecount = bytecount;
tx_ring->tx_buffer_info[i].gso_segs = gso_segs;
tx_ring->tx_buffer_info[i].skb = skb;
tx_ring->tx_buffer_info[first].next_to_watch = i;
tx_buffer_info->bytecount = paylen + (gso_segs * hdr_len);
tx_buffer_info->gso_segs = gso_segs;
tx_buffer_info->skb = skb;
return count;
dma_error:
e_dev_err("TX DMA map failed\n");
/* clear timestamp and dma mappings for failed tx_buffer_info map */
tx_buffer_info->dma = 0;
tx_buffer_info->time_stamp = 0;
tx_buffer_info->next_to_watch = 0;
if (count)
count--;
/* clear timestamp and dma mappings for remaining portion of packet */
while (count--) {
if (i == 0)
i += tx_ring->count;
i--;
tx_buffer_info = &tx_ring->tx_buffer_info[i];
ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info);
}
return 0;
}
static void ixgbe_tx_queue(struct ixgbe_ring *tx_ring,
int tx_flags, int count, u32 paylen, u8 hdr_len)
{
union ixgbe_adv_tx_desc *tx_desc = NULL;
struct ixgbe_tx_buffer *tx_buffer_info;
u32 olinfo_status = 0, cmd_type_len = 0;
unsigned int i;
u32 txd_cmd = IXGBE_TXD_CMD_EOP | IXGBE_TXD_CMD_RS | IXGBE_TXD_CMD_IFCS;
cmd_type_len |= IXGBE_ADVTXD_DTYP_DATA;
cmd_type_len |= IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT;
if (tx_flags & IXGBE_TX_FLAGS_VLAN)
cmd_type_len |= IXGBE_ADVTXD_DCMD_VLE;
if (tx_flags & IXGBE_TX_FLAGS_TSO) {
cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE;
olinfo_status |= IXGBE_TXD_POPTS_TXSM <<
IXGBE_ADVTXD_POPTS_SHIFT;
/* use index 1 context for tso */
olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT);
if (tx_flags & IXGBE_TX_FLAGS_IPV4)
olinfo_status |= IXGBE_TXD_POPTS_IXSM <<
IXGBE_ADVTXD_POPTS_SHIFT;
} else if (tx_flags & IXGBE_TX_FLAGS_CSUM)
olinfo_status |= IXGBE_TXD_POPTS_TXSM <<
IXGBE_ADVTXD_POPTS_SHIFT;
if (tx_flags & IXGBE_TX_FLAGS_FCOE) {
olinfo_status |= IXGBE_ADVTXD_CC;
olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT);
if (tx_flags & IXGBE_TX_FLAGS_FSO)
cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE;
}
olinfo_status |= ((paylen - hdr_len) << IXGBE_ADVTXD_PAYLEN_SHIFT);
i = tx_ring->next_to_use;
while (count--) {
tx_buffer_info = &tx_ring->tx_buffer_info[i];
tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
tx_desc->read.buffer_addr = cpu_to_le64(tx_buffer_info->dma);
tx_desc->read.cmd_type_len =
cpu_to_le32(cmd_type_len | tx_buffer_info->length);
tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status);
i++;
if (i == tx_ring->count)
i = 0;
}
tx_desc->read.cmd_type_len |= cpu_to_le32(txd_cmd);
/* set the timestamp */
first->time_stamp = jiffies;
/*
* Force memory writes to complete before letting h/w
@ -6596,8 +6610,30 @@ static void ixgbe_tx_queue(struct ixgbe_ring *tx_ring,
*/
wmb();
tx_ring->next_to_use = i;
/* set next_to_watch value indicating a packet is present */
first->next_to_watch = tx_desc;
/* notify HW of packet */
writel(i, tx_ring->tail);
return;
dma_error:
dev_err(dev, "TX DMA map failed\n");
/* clear dma mappings for failed tx_buffer_info map */
for (;;) {
tx_buffer_info = &tx_ring->tx_buffer_info[i];
ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info);
if (tx_buffer_info == first)
break;
if (i == 0)
i = tx_ring->count;
i--;
}
dev_kfree_skb_any(skb);
tx_ring->next_to_use = i;
}
static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
@ -6636,8 +6672,8 @@ static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
th = tcp_hdr(skb);
/* skip this packet since the socket is closing */
if (th->fin)
/* skip this packet since it is invalid or the socket is closing */
if (!th || th->fin)
return;
/* sample on all syn packets or once every atr sample count */
@ -6662,7 +6698,7 @@ static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
* since src port and flex bytes occupy the same word XOR them together
* and write the value to source port portion of compressed dword
*/
if (vlan_id)
if (tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN))
common.port.src ^= th->dest ^ __constant_htons(ETH_P_8021Q);
else
common.port.src ^= th->dest ^ protocol;
@ -6744,14 +6780,14 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
struct ixgbe_adapter *adapter,
struct ixgbe_ring *tx_ring)
{
struct ixgbe_tx_buffer *first;
int tso;
u32 tx_flags = 0;
u32 tx_flags = 0;
#if PAGE_SIZE > IXGBE_MAX_DATA_PER_TXD
unsigned short f;
#endif
u16 first;
u16 count = TXD_USE_COUNT(skb_headlen(skb));
__be16 protocol;
__be16 protocol = skb->protocol;
u8 hdr_len = 0;
/*
@ -6772,68 +6808,82 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
return NETDEV_TX_BUSY;
}
protocol = vlan_get_protocol(skb);
/* if we have a HW VLAN tag being added default to the HW one */
if (vlan_tx_tag_present(skb)) {
tx_flags |= vlan_tx_tag_get(skb);
if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK;
tx_flags |= tx_ring->dcb_tc << 13;
}
tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
tx_flags |= IXGBE_TX_FLAGS_VLAN;
} else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED &&
skb->priority != TC_PRIO_CONTROL) {
tx_flags |= tx_ring->dcb_tc << 13;
tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
tx_flags |= IXGBE_TX_FLAGS_VLAN;
tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT;
tx_flags |= IXGBE_TX_FLAGS_HW_VLAN;
/* else if it is a SW VLAN check the next protocol and store the tag */
} else if (protocol == __constant_htons(ETH_P_8021Q)) {
struct vlan_hdr *vhdr, _vhdr;
vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr);
if (!vhdr)
goto out_drop;
protocol = vhdr->h_vlan_encapsulated_proto;
tx_flags |= ntohs(vhdr->h_vlan_TCI) << IXGBE_TX_FLAGS_VLAN_SHIFT;
tx_flags |= IXGBE_TX_FLAGS_SW_VLAN;
}
#ifdef IXGBE_FCOE
/* for FCoE with DCB, we force the priority to what
* was specified by the switch */
if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED &&
(protocol == htons(ETH_P_FCOE)))
tx_flags |= IXGBE_TX_FLAGS_FCOE;
if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&
skb->priority != TC_PRIO_CONTROL) {
tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK;
tx_flags |= tx_ring->dcb_tc <<
IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT;
if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) {
struct vlan_ethhdr *vhdr;
if (skb_header_cloned(skb) &&
pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
goto out_drop;
vhdr = (struct vlan_ethhdr *)skb->data;
vhdr->h_vlan_TCI = htons(tx_flags >>
IXGBE_TX_FLAGS_VLAN_SHIFT);
} else {
tx_flags |= IXGBE_TX_FLAGS_HW_VLAN;
}
}
#endif
/* record the location of the first descriptor for this packet */
first = tx_ring->next_to_use;
first = &tx_ring->tx_buffer_info[tx_ring->next_to_use];
if (tx_flags & IXGBE_TX_FLAGS_FCOE) {
#ifdef IXGBE_FCOE
/* setup tx offload for FCoE */
/* setup tx offload for FCoE */
if ((protocol == __constant_htons(ETH_P_FCOE)) &&
(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) {
tso = ixgbe_fso(tx_ring, skb, tx_flags, &hdr_len);
if (tso < 0)
goto out_drop;
else if (tso)
tx_flags |= IXGBE_TX_FLAGS_FSO;
tx_flags |= IXGBE_TX_FLAGS_FSO |
IXGBE_TX_FLAGS_FCOE;
else
tx_flags |= IXGBE_TX_FLAGS_FCOE;
goto xmit_fcoe;
}
#endif /* IXGBE_FCOE */
} else {
if (protocol == htons(ETH_P_IP))
tx_flags |= IXGBE_TX_FLAGS_IPV4;
tso = ixgbe_tso(tx_ring, skb, tx_flags, protocol, &hdr_len);
if (tso < 0)
goto out_drop;
else if (tso)
tx_flags |= IXGBE_TX_FLAGS_TSO;
else if (ixgbe_tx_csum(tx_ring, skb, tx_flags, protocol))
tx_flags |= IXGBE_TX_FLAGS_CSUM;
}
/* setup IPv4/IPv6 offloads */
if (protocol == __constant_htons(ETH_P_IP))
tx_flags |= IXGBE_TX_FLAGS_IPV4;
count = ixgbe_tx_map(adapter, tx_ring, skb, tx_flags, first, hdr_len);
if (count) {
/* add the ATR filter if ATR is on */
if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state))
ixgbe_atr(tx_ring, skb, tx_flags, protocol);
ixgbe_tx_queue(tx_ring, tx_flags, count, skb->len, hdr_len);
ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED);
} else {
tx_ring->tx_buffer_info[first].time_stamp = 0;
tx_ring->next_to_use = first;
tso = ixgbe_tso(tx_ring, skb, tx_flags, protocol, &hdr_len);
if (tso < 0)
goto out_drop;
}
else if (tso)
tx_flags |= IXGBE_TX_FLAGS_TSO;
else if (ixgbe_tx_csum(tx_ring, skb, tx_flags, protocol))
tx_flags |= IXGBE_TX_FLAGS_CSUM;
/* add the ATR filter if ATR is on */
if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state))
ixgbe_atr(tx_ring, skb, tx_flags, protocol);
#ifdef IXGBE_FCOE
xmit_fcoe:
#endif /* IXGBE_FCOE */
ixgbe_tx_map(tx_ring, skb, first, tx_flags, hdr_len);
ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED);
return NETDEV_TX_OK;