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path: root/drivers/net/mv643xx_eth.c
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Diffstat (limited to 'drivers/net/mv643xx_eth.c')
-rw-r--r--drivers/net/mv643xx_eth.c87
1 files changed, 49 insertions, 38 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 6bb5af35eda6..1361ddc8d31f 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -88,7 +88,24 @@ static char mv643xx_eth_driver_version[] = "1.4";
#define MAC_ADDR_LOW 0x0014
#define MAC_ADDR_HIGH 0x0018
#define SDMA_CONFIG 0x001c
+#define TX_BURST_SIZE_16_64BIT 0x01000000
+#define TX_BURST_SIZE_4_64BIT 0x00800000
+#define BLM_TX_NO_SWAP 0x00000020
+#define BLM_RX_NO_SWAP 0x00000010
+#define RX_BURST_SIZE_16_64BIT 0x00000008
+#define RX_BURST_SIZE_4_64BIT 0x00000004
#define PORT_SERIAL_CONTROL 0x003c
+#define SET_MII_SPEED_TO_100 0x01000000
+#define SET_GMII_SPEED_TO_1000 0x00800000
+#define SET_FULL_DUPLEX_MODE 0x00200000
+#define MAX_RX_PACKET_9700BYTE 0x000a0000
+#define DISABLE_AUTO_NEG_SPEED_GMII 0x00002000
+#define DO_NOT_FORCE_LINK_FAIL 0x00000400
+#define SERIAL_PORT_CONTROL_RESERVED 0x00000200
+#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL 0x00000008
+#define DISABLE_AUTO_NEG_FOR_DUPLEX 0x00000004
+#define FORCE_LINK_PASS 0x00000002
+#define SERIAL_PORT_ENABLE 0x00000001
#define PORT_STATUS 0x0044
#define TX_FIFO_EMPTY 0x00000400
#define TX_IN_PROGRESS 0x00000080
@@ -106,7 +123,9 @@ static char mv643xx_eth_driver_version[] = "1.4";
#define TX_BW_BURST 0x005c
#define INT_CAUSE 0x0060
#define INT_TX_END 0x07f80000
+#define INT_TX_END_0 0x00080000
#define INT_RX 0x000003fc
+#define INT_RX_0 0x00000004
#define INT_EXT 0x00000002
#define INT_CAUSE_EXT 0x0064
#define INT_EXT_LINK_PHY 0x00110000
@@ -135,15 +154,8 @@ static char mv643xx_eth_driver_version[] = "1.4";
/*
- * SDMA configuration register.
+ * SDMA configuration register default value.
*/
-#define RX_BURST_SIZE_4_64BIT (2 << 1)
-#define RX_BURST_SIZE_16_64BIT (4 << 1)
-#define BLM_RX_NO_SWAP (1 << 4)
-#define BLM_TX_NO_SWAP (1 << 5)
-#define TX_BURST_SIZE_4_64BIT (2 << 22)
-#define TX_BURST_SIZE_16_64BIT (4 << 22)
-
#if defined(__BIG_ENDIAN)
#define PORT_SDMA_CONFIG_DEFAULT_VALUE \
(RX_BURST_SIZE_4_64BIT | \
@@ -160,22 +172,11 @@ static char mv643xx_eth_driver_version[] = "1.4";
/*
- * Port serial control register.
+ * Misc definitions.
*/
-#define SET_MII_SPEED_TO_100 (1 << 24)
-#define SET_GMII_SPEED_TO_1000 (1 << 23)
-#define SET_FULL_DUPLEX_MODE (1 << 21)
-#define MAX_RX_PACKET_9700BYTE (5 << 17)
-#define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13)
-#define DO_NOT_FORCE_LINK_FAIL (1 << 10)
-#define SERIAL_PORT_CONTROL_RESERVED (1 << 9)
-#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3)
-#define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2)
-#define FORCE_LINK_PASS (1 << 1)
-#define SERIAL_PORT_ENABLE (1 << 0)
-
-#define DEFAULT_RX_QUEUE_SIZE 128
-#define DEFAULT_TX_QUEUE_SIZE 256
+#define DEFAULT_RX_QUEUE_SIZE 128
+#define DEFAULT_TX_QUEUE_SIZE 256
+#define SKB_DMA_REALIGN ((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES)
/*
@@ -393,6 +394,7 @@ struct mv643xx_eth_private {
struct work_struct tx_timeout_task;
struct napi_struct napi;
+ u32 int_mask;
u8 oom;
u8 work_link;
u8 work_tx;
@@ -651,23 +653,20 @@ static int rxq_refill(struct rx_queue *rxq, int budget)
refilled = 0;
while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) {
struct sk_buff *skb;
- int unaligned;
int rx;
struct rx_desc *rx_desc;
skb = __skb_dequeue(&mp->rx_recycle);
if (skb == NULL)
- skb = dev_alloc_skb(mp->skb_size +
- dma_get_cache_alignment() - 1);
+ skb = dev_alloc_skb(mp->skb_size);
if (skb == NULL) {
mp->oom = 1;
goto oom;
}
- unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1);
- if (unaligned)
- skb_reserve(skb, dma_get_cache_alignment() - unaligned);
+ if (SKB_DMA_REALIGN)
+ skb_reserve(skb, SKB_DMA_REALIGN);
refilled++;
rxq->rx_desc_count++;
@@ -969,8 +968,7 @@ static int txq_reclaim(struct tx_queue *txq, int budget, int force)
if (skb != NULL) {
if (skb_queue_len(&mp->rx_recycle) <
mp->rx_ring_size &&
- skb_recycle_check(skb, mp->skb_size +
- dma_get_cache_alignment() - 1))
+ skb_recycle_check(skb, mp->skb_size))
__skb_queue_head(&mp->rx_recycle, skb);
else
dev_kfree_skb(skb);
@@ -1810,7 +1808,6 @@ static void mv643xx_eth_program_multicast_filter(struct net_device *dev)
if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) {
int port_num;
u32 accept;
- int i;
oom:
port_num = mp->port_num;
@@ -2067,15 +2064,16 @@ static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp)
u32 int_cause;
u32 int_cause_ext;
- int_cause = rdlp(mp, INT_CAUSE) & (INT_TX_END | INT_RX | INT_EXT);
+ int_cause = rdlp(mp, INT_CAUSE) & mp->int_mask;
if (int_cause == 0)
return 0;
int_cause_ext = 0;
- if (int_cause & INT_EXT)
+ if (int_cause & INT_EXT) {
+ int_cause &= ~INT_EXT;
int_cause_ext = rdlp(mp, INT_CAUSE_EXT);
+ }
- int_cause &= INT_TX_END | INT_RX;
if (int_cause) {
wrlp(mp, INT_CAUSE, ~int_cause);
mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) &
@@ -2182,6 +2180,7 @@ static int mv643xx_eth_poll(struct napi_struct *napi, int budget)
if (mp->work_link) {
mp->work_link = 0;
handle_link_event(mp);
+ work_done++;
continue;
}
@@ -2220,7 +2219,7 @@ static int mv643xx_eth_poll(struct napi_struct *napi, int budget)
if (mp->oom)
mod_timer(&mp->rx_oom, jiffies + (HZ / 10));
napi_complete(napi);
- wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT);
+ wrlp(mp, INT_MASK, mp->int_mask);
}
return work_done;
@@ -2341,6 +2340,14 @@ static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp)
* size field are ignored by the hardware.
*/
mp->skb_size = (skb_size + 7) & ~7;
+
+ /*
+ * If NET_SKB_PAD is smaller than a cache line,
+ * netdev_alloc_skb() will cause skb->data to be misaligned
+ * to a cache line boundary. If this is the case, include
+ * some extra space to allow re-aligning the data area.
+ */
+ mp->skb_size += SKB_DMA_REALIGN;
}
static int mv643xx_eth_open(struct net_device *dev)
@@ -2366,6 +2373,8 @@ static int mv643xx_eth_open(struct net_device *dev)
skb_queue_head_init(&mp->rx_recycle);
+ mp->int_mask = INT_EXT;
+
for (i = 0; i < mp->rxq_count; i++) {
err = rxq_init(mp, i);
if (err) {
@@ -2375,6 +2384,7 @@ static int mv643xx_eth_open(struct net_device *dev)
}
rxq_refill(mp->rxq + i, INT_MAX);
+ mp->int_mask |= INT_RX_0 << i;
}
if (mp->oom) {
@@ -2389,12 +2399,13 @@ static int mv643xx_eth_open(struct net_device *dev)
txq_deinit(mp->txq + i);
goto out_free;
}
+ mp->int_mask |= INT_TX_END_0 << i;
}
port_start(mp);
wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX);
- wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT);
+ wrlp(mp, INT_MASK, mp->int_mask);
return 0;
@@ -2538,7 +2549,7 @@ static void mv643xx_eth_netpoll(struct net_device *dev)
mv643xx_eth_irq(dev->irq, dev);
- wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT);
+ wrlp(mp, INT_MASK, mp->int_mask);
}
#endif
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-03 19:24:06 +0000