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tg3: Add jumbo frame loopback tests to selftest 

This patch adds jumbo frame loopback test support to the ethtool
selftest.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2011-04-13 11:05:07 +00:00 committed by David S. Miller
parent 48fa55a0a5
commit 4852a8614f
1 changed files with 25 additions and 9 deletions
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34
drivers/net/tg3.c
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@ -10935,7 +10935,7 @@ static int tg3_test_memory(struct tg3 *tp)
#define TG3_MAC_LOOPBACK 0
#define TG3_PHY_LOOPBACK 1
static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
static int tg3_run_loopback(struct tg3 *tp, u32 pktsz, int loopback_mode)
{
u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
u32 desc_idx, coal_now;
@ -11033,7 +11033,7 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
err = -EIO;
tx_len = 1514;
tx_len = pktsz;
skb = netdev_alloc_skb(tp->dev, tx_len);
if (!skb)
return -ENOMEM;
@ -11042,7 +11042,7 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
memcpy(tx_data, tp->dev->dev_addr, 6);
memset(tx_data + 6, 0x0, 8);
tw32(MAC_RX_MTU_SIZE, tx_len + 4);
tw32(MAC_RX_MTU_SIZE, tx_len + ETH_FCS_LEN);
for (i = 14; i < tx_len; i++)
tx_data[i] = (u8) (i & 0xff);
@ -11098,8 +11098,6 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
desc = &rnapi->rx_rcb[rx_start_idx];
desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
if (opaque_key != RXD_OPAQUE_RING_STD)
goto out;
if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
(desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
@ -11109,9 +11107,20 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
if (rx_len != tx_len)
goto out;
rx_skb = tpr->rx_std_buffers[desc_idx].skb;
if (pktsz <= TG3_RX_STD_DMA_SZ - ETH_FCS_LEN) {
if (opaque_key != RXD_OPAQUE_RING_STD)
goto out;
rx_skb = tpr->rx_std_buffers[desc_idx].skb;
map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping);
} else {
if (opaque_key != RXD_OPAQUE_RING_JUMBO)
goto out;
rx_skb = tpr->rx_jmb_buffers[desc_idx].skb;
map = dma_unmap_addr(&tpr->rx_jmb_buffers[desc_idx], mapping);
}
map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping);
pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
for (i = 14; i < tx_len; i++) {
@ -11177,9 +11186,13 @@ static int tg3_test_loopback(struct tg3 *tp)
CPMU_CTRL_LINK_AWARE_MODE));
}
if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
if (tg3_run_loopback(tp, ETH_FRAME_LEN, TG3_MAC_LOOPBACK))
err |= TG3_MAC_LOOPBACK_FAILED;
if ((tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) &&
tg3_run_loopback(tp, 9000 + ETH_HLEN, TG3_MAC_LOOPBACK))
err |= (TG3_MAC_LOOPBACK_FAILED << 2);
if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
tw32(TG3_CPMU_CTRL, cpmuctrl);
@ -11189,8 +11202,11 @@ static int tg3_test_loopback(struct tg3 *tp)
if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
if (tg3_run_loopback(tp, ETH_FRAME_LEN, TG3_PHY_LOOPBACK))
err |= TG3_PHY_LOOPBACK_FAILED;
if ((tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) &&
tg3_run_loopback(tp, 9000 + ETH_HLEN, TG3_PHY_LOOPBACK))
err |= (TG3_PHY_LOOPBACK_FAILED << 2);
}
/* Re-enable gphy autopowerdown. */