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

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Conflicts:
	drivers/net/ethernet/intel/e1000e/netdev.c
This commit is contained in:
David S. Miller
2011-08-20 17:25:36 -07:00
parent 6461be3a54 66f32a8b97
commit ca1ba7caa6
7 changed files with 454 additions and 368 deletions
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199
drivers/net/ethernet/intel/e1000e/netdev.c
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@@ -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 @@ rx_ring_summary:
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 @@ map_skb:
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 @@ check_page:
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 @@ next_desc:
/* 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 @@ next_desc:
/* 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;
}