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[BNX2]: Add PHY loopback test

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Enhance the ethtool loopback test with PHY loopback test.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2006-01-23 16:13:22 -08:00 committed by David S. Miller
parent 972ec0d4ba
commit bc5a0690e9
1 changed files with 79 additions and 22 deletions
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101
drivers/net/bnx2.c
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@ -1331,6 +1331,38 @@ bnx2_set_mac_loopback(struct bnx2 *bp)
return 0;
}
static int bnx2_test_link(struct bnx2 *);
static int
bnx2_set_phy_loopback(struct bnx2 *bp)
{
u32 mac_mode;
int rc, i;
spin_lock_bh(&bp->phy_lock);
rc = bnx2_write_phy(bp, MII_BMCR, BMCR_LOOPBACK | BMCR_FULLDPLX |
BMCR_SPEED1000);
spin_unlock_bh(&bp->phy_lock);
if (rc)
return rc;
for (i = 0; i < 10; i++) {
if (bnx2_test_link(bp) == 0)
break;
udelay(10);
}
mac_mode = REG_RD(bp, BNX2_EMAC_MODE);
mac_mode &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |
BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |
BNX2_EMAC_MODE_25G);
mac_mode |= BNX2_EMAC_MODE_PORT_GMII;
REG_WR(bp, BNX2_EMAC_MODE, mac_mode);
bp->link_up = 1;
return 0;
}
static int
bnx2_fw_sync(struct bnx2 *bp, u32 msg_data, int silent)
{
@ -3907,26 +3939,33 @@ bnx2_test_memory(struct bnx2 *bp)
return ret;
}
#define BNX2_MAC_LOOPBACK 0
#define BNX2_PHY_LOOPBACK 1
static int
bnx2_test_loopback(struct bnx2 *bp)
bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
{
unsigned int pkt_size, num_pkts, i;
struct sk_buff *skb, *rx_skb;
unsigned char *packet;
u16 rx_start_idx, rx_idx, send_idx;
u32 send_bseq, val;
u16 rx_start_idx, rx_idx;
u32 val;
dma_addr_t map;
struct tx_bd *txbd;
struct sw_bd *rx_buf;
struct l2_fhdr *rx_hdr;
int ret = -ENODEV;
if (!netif_running(bp->dev))
return -ENODEV;
bp->loopback = MAC_LOOPBACK;
bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_DIAG);
bnx2_set_mac_loopback(bp);
if (loopback_mode == BNX2_MAC_LOOPBACK) {
bp->loopback = MAC_LOOPBACK;
bnx2_set_mac_loopback(bp);
}
else if (loopback_mode == BNX2_PHY_LOOPBACK) {
bp->loopback = 0;
bnx2_set_phy_loopback(bp);
}
else
return -EINVAL;
pkt_size = 1514;
skb = dev_alloc_skb(pkt_size);
@ -3948,11 +3987,9 @@ bnx2_test_loopback(struct bnx2 *bp)
udelay(5);
rx_start_idx = bp->status_blk->status_rx_quick_consumer_index0;
send_idx = 0;
send_bseq = 0;
num_pkts = 0;
txbd = &bp->tx_desc_ring[send_idx];
txbd = &bp->tx_desc_ring[TX_RING_IDX(bp->tx_prod)];
txbd->tx_bd_haddr_hi = (u64) map >> 32;
txbd->tx_bd_haddr_lo = (u64) map & 0xffffffff;
@ -3960,13 +3997,11 @@ bnx2_test_loopback(struct bnx2 *bp)
txbd->tx_bd_vlan_tag_flags = TX_BD_FLAGS_START | TX_BD_FLAGS_END;
num_pkts++;
send_idx = NEXT_TX_BD(send_idx);
send_bseq += pkt_size;
REG_WR16(bp, MB_TX_CID_ADDR + BNX2_L2CTX_TX_HOST_BIDX, send_idx);
REG_WR(bp, MB_TX_CID_ADDR + BNX2_L2CTX_TX_HOST_BSEQ, send_bseq);
bp->tx_prod = NEXT_TX_BD(bp->tx_prod);
bp->tx_prod_bseq += pkt_size;
REG_WR16(bp, MB_TX_CID_ADDR + BNX2_L2CTX_TX_HOST_BIDX, bp->tx_prod);
REG_WR(bp, MB_TX_CID_ADDR + BNX2_L2CTX_TX_HOST_BSEQ, bp->tx_prod_bseq);
udelay(100);
@ -3979,7 +4014,7 @@ bnx2_test_loopback(struct bnx2 *bp)
pci_unmap_single(bp->pdev, map, pkt_size, PCI_DMA_TODEVICE);
dev_kfree_skb_irq(skb);
if (bp->status_blk->status_tx_quick_consumer_index0 != send_idx) {
if (bp->status_blk->status_tx_quick_consumer_index0 != bp->tx_prod) {
goto loopback_test_done;
}
@ -4025,6 +4060,30 @@ loopback_test_done:
return ret;
}
#define BNX2_MAC_LOOPBACK_FAILED 1
#define BNX2_PHY_LOOPBACK_FAILED 2
#define BNX2_LOOPBACK_FAILED (BNX2_MAC_LOOPBACK_FAILED | \
BNX2_PHY_LOOPBACK_FAILED)
static int
bnx2_test_loopback(struct bnx2 *bp)
{
int rc = 0;
if (!netif_running(bp->dev))
return BNX2_LOOPBACK_FAILED;
bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
spin_lock_bh(&bp->phy_lock);
bnx2_init_phy(bp);
spin_unlock_bh(&bp->phy_lock);
if (bnx2_run_loopback(bp, BNX2_MAC_LOOPBACK))
rc |= BNX2_MAC_LOOPBACK_FAILED;
if (bnx2_run_loopback(bp, BNX2_PHY_LOOPBACK))
rc |= BNX2_PHY_LOOPBACK_FAILED;
return rc;
}
#define NVRAM_SIZE 0x200
#define CRC32_RESIDUAL 0xdebb20e3
@ -5169,10 +5228,8 @@ bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
buf[1] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (bnx2_test_loopback(bp) != 0) {
buf[2] = 1;
if ((buf[2] = bnx2_test_loopback(bp)) != 0)
etest->flags |= ETH_TEST_FL_FAILED;
}
if (!netif_running(bp->dev)) {
bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);