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Commit 9e69c961 authored by Grant Grundler's avatar Grant Grundler Committed by David S. Miller
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[TG3]: Abstract out mailbox workarounds into tw32_{rx,tw}_mbox().

parent c9607cc0
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Showing with 37 additions and 54 deletions
drivers/net/tg3.c
View file @ 9e69c961
......@@ -213,8 +213,30 @@ static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
}
}
static inline void _tw32_rx_mbox(struct tg3 *tp, u32 off, u32 val)
{
unsigned long mbox = tp->regs + off;
writel(val, mbox);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
readl(mbox);
}
static inline void _tw32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
{
unsigned long mbox = tp->regs + off;
writel(val, mbox);
if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
writel(val, mbox);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
readl(mbox);
}
#define tw32_mailbox(reg, val) writel(((val) & 0xffffffff), tp->regs + (reg))
#define tw32_rx_mbox(reg, val) _tw32_rx_mbox(tp, reg, val)
#define tw32_tx_mbox(reg, val) _tw32_tx_mbox(tp, reg, val)
#define tw32(reg,val) tg3_write_indirect_reg32(tp,(reg),(val))
#define tw32_mailbox(reg, val) writel(((val) & 0xffffffff), tp->regs + (reg))
#define tw16(reg,val) writew(((val) & 0xffff), tp->regs + (reg))
#define tw8(reg,val) writeb(((val) & 0xff), tp->regs + (reg))
#define tr32(reg) readl(tp->regs + (reg))
......@@ -2325,25 +2347,19 @@ static int tg3_rx(struct tg3 *tp, int budget)
/* ACK the status ring. */
tp->rx_rcb_ptr = rx_rcb_ptr;
tw32_mailbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW,
tw32_rx_mbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW,
(rx_rcb_ptr % TG3_RX_RCB_RING_SIZE(tp)));
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW);
/* Refill RX ring(s). */
if (work_mask & RXD_OPAQUE_RING_STD) {
sw_idx = tp->rx_std_ptr % TG3_RX_RING_SIZE;
tw32_mailbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
sw_idx);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW);
}
if (work_mask & RXD_OPAQUE_RING_JUMBO) {
sw_idx = tp->rx_jumbo_ptr % TG3_RX_JUMBO_RING_SIZE;
tw32_mailbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
sw_idx);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW);
}
return received;
......@@ -2795,32 +2811,17 @@ static int tg3_start_xmit_4gbug(struct sk_buff *skb, struct net_device *dev)
/* Packets are ready, update Tx producer idx local and on card. */
if (tp->tg3_flags & TG3_FLAG_HOST_TXDS) {
tw32_mailbox((MAILBOX_SNDHOST_PROD_IDX_0 +
tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 +
TG3_64BIT_REG_LOW), entry);
if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
tw32_mailbox((MAILBOX_SNDHOST_PROD_IDX_0 +
TG3_64BIT_REG_LOW), entry);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_SNDHOST_PROD_IDX_0 +
TG3_64BIT_REG_LOW);
} else {
/* First, make sure tg3 sees last descriptor fully
* in SRAM.
*/
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_SNDNIC_PROD_IDX_0 +
TG3_64BIT_REG_LOW);
tr32(MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW);
tw32_mailbox((MAILBOX_SNDNIC_PROD_IDX_0 +
tw32_tx_mbox((MAILBOX_SNDNIC_PROD_IDX_0 +
TG3_64BIT_REG_LOW), entry);
if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
tw32_mailbox((MAILBOX_SNDNIC_PROD_IDX_0 +
TG3_64BIT_REG_LOW), entry);
/* Now post the mailbox write itself. */
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_SNDNIC_PROD_IDX_0 +
TG3_64BIT_REG_LOW);
}
tp->tx_prod = entry;
......@@ -2965,11 +2966,8 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
* the double-write bug tests.
*/
if (tp->tg3_flags & TG3_FLAG_HOST_TXDS) {
tw32_mailbox((MAILBOX_SNDHOST_PROD_IDX_0 +
tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 +
TG3_64BIT_REG_LOW), entry);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_SNDHOST_PROD_IDX_0 +
TG3_64BIT_REG_LOW);
} else {
/* First, make sure tg3 sees last descriptor fully
* in SRAM.
......@@ -2978,13 +2976,8 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
tr32(MAILBOX_SNDNIC_PROD_IDX_0 +
TG3_64BIT_REG_LOW);
tw32_mailbox((MAILBOX_SNDNIC_PROD_IDX_0 +
tw32_tx_mbox((MAILBOX_SNDNIC_PROD_IDX_0 +
TG3_64BIT_REG_LOW), entry);
/* Now post the mailbox write itself. */
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_SNDNIC_PROD_IDX_0 +
TG3_64BIT_REG_LOW);
}
tp->tx_prod = entry;
......@@ -4797,9 +4790,7 @@ static int tg3_reset_hw(struct tg3 *tp)
tp->tx_prod = 0;
tp->tx_cons = 0;
tw32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
tw32_mailbox(MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW);
tw32_tx_mbox(MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
if (tp->tg3_flags & TG3_FLAG_HOST_TXDS) {
tg3_set_bdinfo(tp, NIC_SRAM_SEND_RCB,
......@@ -4826,9 +4817,7 @@ static int tg3_reset_hw(struct tg3 *tp)
}
tp->rx_rcb_ptr = 0;
tw32_mailbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW, 0);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW);
tw32_rx_mbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW, 0);
tg3_set_bdinfo(tp, NIC_SRAM_RCV_RET_RCB,
tp->rx_rcb_mapping,
......@@ -4837,19 +4826,13 @@ static int tg3_reset_hw(struct tg3 *tp)
0);
tp->rx_std_ptr = tp->rx_pending;
tw32_mailbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
tp->rx_std_ptr);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW);
if (tp->tg3_flags & TG3_FLAG_JUMBO_ENABLE)
tp->rx_jumbo_ptr = tp->rx_jumbo_pending;
else
tp->rx_jumbo_ptr = 0;
tw32_mailbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
tp->rx_jumbo_ptr = (tp->tg3_flags & TG3_FLAG_JUMBO_ENABLE) ?
tp->rx_jumbo_pending : 0;
tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
tp->rx_jumbo_ptr);
if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
tr32(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW);
/* Initialize MAC address and backoff seed. */
__tg3_set_mac_addr(tp);
......
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