aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/igb/igb_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/igb/igb_main.c')
-rw-r--r--drivers/net/igb/igb_main.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 9f3168d6e239..aaee02e9e3f0 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3254,6 +3254,13 @@ quit_polling:
3254 3254
3255 return 1; 3255 return 1;
3256} 3256}
3257
3258static inline u32 get_head(struct igb_ring *tx_ring)
3259{
3260 void *end = (struct e1000_tx_desc *)tx_ring->desc + tx_ring->count;
3261 return le32_to_cpu(*(volatile __le32 *)end);
3262}
3263
3257/** 3264/**
3258 * igb_clean_tx_irq - Reclaim resources after transmit completes 3265 * igb_clean_tx_irq - Reclaim resources after transmit completes
3259 * @adapter: board private structure 3266 * @adapter: board private structure
@@ -3275,9 +3282,7 @@ static bool igb_clean_tx_irq(struct igb_adapter *adapter,
3275 unsigned int total_bytes = 0, total_packets = 0; 3282 unsigned int total_bytes = 0, total_packets = 0;
3276 3283
3277 rmb(); 3284 rmb();
3278 head = *(volatile u32 *)((struct e1000_tx_desc *)tx_ring->desc 3285 head = get_head(tx_ring);
3279 + tx_ring->count);
3280 head = le32_to_cpu(head);
3281 i = tx_ring->next_to_clean; 3286 i = tx_ring->next_to_clean;
3282 while (1) { 3287 while (1) {
3283 while (i != head) { 3288 while (i != head) {
@@ -3312,9 +3317,7 @@ static bool igb_clean_tx_irq(struct igb_adapter *adapter,
3312 } 3317 }
3313 oldhead = head; 3318 oldhead = head;
3314 rmb(); 3319 rmb();
3315 head = *(volatile u32 *)((struct e1000_tx_desc *)tx_ring->desc 3320 head = get_head(tx_ring);
3316 + tx_ring->count);
3317 head = le32_to_cpu(head);
3318 if (head == oldhead) 3321 if (head == oldhead)
3319 goto done_cleaning; 3322 goto done_cleaning;
3320 } /* while (1) */ 3323 } /* while (1) */
@@ -3388,7 +3391,7 @@ done_cleaning:
3388 * @vlan: descriptor vlan field as written by hardware (no le/be conversion) 3391 * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
3389 * @skb: pointer to sk_buff to be indicated to stack 3392 * @skb: pointer to sk_buff to be indicated to stack
3390 **/ 3393 **/
3391static void igb_receive_skb(struct igb_adapter *adapter, u8 status, u16 vlan, 3394static void igb_receive_skb(struct igb_adapter *adapter, u8 status, __le16 vlan,
3392 struct sk_buff *skb) 3395 struct sk_buff *skb)
3393{ 3396{
3394 if (adapter->vlgrp && (status & E1000_RXD_STAT_VP)) 3397 if (adapter->vlgrp && (status & E1000_RXD_STAT_VP))