From 9dfbbaa6b0b9f7c4d6c9dc3a59006f44e6521138 Mon Sep 17 00:00:00 2001 From: Ron Mercer Date: Fri, 30 Oct 2009 12:13:33 +0000 Subject: [PATCH] qlge: Add ethtool self-test. Signed-off-by: Ron Mercer Signed-off-by: David S. Miller --- drivers/net/qlge/qlge.h | 6 ++ drivers/net/qlge/qlge_ethtool.c | 112 ++++++++++++++++++++++++++++++++ drivers/net/qlge/qlge_main.c | 20 +++++- 3 files changed, 137 insertions(+), 1 deletion(-) diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index 73c7fd2badcd..872e95ee40ee 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -1581,6 +1581,8 @@ enum { QL_ALLMULTI = 6, QL_PORT_CFG = 7, QL_CAM_RT_SET = 8, + QL_SELFTEST = 9, + QL_LB_LINK_UP = 10, }; /* link_status bit definitions */ @@ -1717,6 +1719,7 @@ struct ql_adapter { struct completion ide_completion; struct nic_operations *nic_ops; u16 device_id; + atomic_t lb_count; }; /* @@ -1808,6 +1811,9 @@ int ql_mb_set_port_cfg(struct ql_adapter *qdev); int ql_wait_fifo_empty(struct ql_adapter *qdev); void ql_gen_reg_dump(struct ql_adapter *qdev, struct ql_reg_dump *mpi_coredump); +netdev_tx_t ql_lb_send(struct sk_buff *skb, struct net_device *ndev); +void ql_check_lb_frame(struct ql_adapter *, struct sk_buff *); +int ql_clean_lb_rx_ring(struct rx_ring *rx_ring, int budget); #if 1 #define QL_ALL_DUMP diff --git a/drivers/net/qlge/qlge_ethtool.c b/drivers/net/qlge/qlge_ethtool.c index 62c4af057800..058fa0a48c6f 100644 --- a/drivers/net/qlge/qlge_ethtool.c +++ b/drivers/net/qlge/qlge_ethtool.c @@ -36,6 +36,11 @@ #include "qlge.h" +static const char ql_gstrings_test[][ETH_GSTRING_LEN] = { + "Loopback test (offline)" +}; +#define QLGE_TEST_LEN (sizeof(ql_gstrings_test) / ETH_GSTRING_LEN) + static int ql_update_ring_coalescing(struct ql_adapter *qdev) { int i, status = 0; @@ -251,6 +256,8 @@ static void ql_get_strings(struct net_device *dev, u32 stringset, u8 *buf) static int ql_get_sset_count(struct net_device *dev, int sset) { switch (sset) { + case ETH_SS_TEST: + return QLGE_TEST_LEN; case ETH_SS_STATS: return ARRAY_SIZE(ql_stats_str_arr); default: @@ -429,6 +436,110 @@ static int ql_phys_id(struct net_device *ndev, u32 data) return 0; } +static int ql_start_loopback(struct ql_adapter *qdev) +{ + if (netif_carrier_ok(qdev->ndev)) { + set_bit(QL_LB_LINK_UP, &qdev->flags); + netif_carrier_off(qdev->ndev); + } else + clear_bit(QL_LB_LINK_UP, &qdev->flags); + qdev->link_config |= CFG_LOOPBACK_PCS; + return ql_mb_set_port_cfg(qdev); +} + +static void ql_stop_loopback(struct ql_adapter *qdev) +{ + qdev->link_config &= ~CFG_LOOPBACK_PCS; + ql_mb_set_port_cfg(qdev); + if (test_bit(QL_LB_LINK_UP, &qdev->flags)) { + netif_carrier_on(qdev->ndev); + clear_bit(QL_LB_LINK_UP, &qdev->flags); + } +} + +static void ql_create_lb_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + memset(skb->data, 0xFF, frame_size); + frame_size &= ~1; + memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); + memset(&skb->data[frame_size / 2 + 10], 0xBE, 1); + memset(&skb->data[frame_size / 2 + 12], 0xAF, 1); +} + +void ql_check_lb_frame(struct ql_adapter *qdev, + struct sk_buff *skb) +{ + unsigned int frame_size = skb->len; + + if ((*(skb->data + 3) == 0xFF) && + (*(skb->data + frame_size / 2 + 10) == 0xBE) && + (*(skb->data + frame_size / 2 + 12) == 0xAF)) { + atomic_dec(&qdev->lb_count); + return; + } +} + +static int ql_run_loopback_test(struct ql_adapter *qdev) +{ + int i; + netdev_tx_t rc; + struct sk_buff *skb; + unsigned int size = SMALL_BUF_MAP_SIZE; + + for (i = 0; i < 64; i++) { + skb = netdev_alloc_skb(qdev->ndev, size); + if (!skb) + return -ENOMEM; + + skb->queue_mapping = 0; + skb_put(skb, size); + ql_create_lb_frame(skb, size); + rc = ql_lb_send(skb, qdev->ndev); + if (rc != NETDEV_TX_OK) + return -EPIPE; + atomic_inc(&qdev->lb_count); + } + + ql_clean_lb_rx_ring(&qdev->rx_ring[0], 128); + return atomic_read(&qdev->lb_count) ? -EIO : 0; +} + +static int ql_loopback_test(struct ql_adapter *qdev, u64 *data) +{ + *data = ql_start_loopback(qdev); + if (*data) + goto out; + *data = ql_run_loopback_test(qdev); +out: + ql_stop_loopback(qdev); + return *data; +} + +static void ql_self_test(struct net_device *ndev, + struct ethtool_test *eth_test, u64 *data) +{ + struct ql_adapter *qdev = netdev_priv(ndev); + + if (netif_running(ndev)) { + set_bit(QL_SELFTEST, &qdev->flags); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + /* Offline tests */ + if (ql_loopback_test(qdev, &data[0])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + } else { + /* Online tests */ + data[0] = 0; + } + clear_bit(QL_SELFTEST, &qdev->flags); + } else { + QPRINTK(qdev, DRV, ERR, + "%s: is down, Loopback test will fail.\n", ndev->name); + eth_test->flags |= ETH_TEST_FL_FAILED; + } +} + static int ql_get_regs_len(struct net_device *ndev) { return sizeof(struct ql_reg_dump); @@ -575,6 +686,7 @@ const struct ethtool_ops qlge_ethtool_ops = { .set_msglevel = ql_set_msglevel, .get_link = ethtool_op_get_link, .phys_id = ql_phys_id, + .self_test = ql_self_test, .get_pauseparam = ql_get_pauseparam, .set_pauseparam = ql_set_pauseparam, .get_rx_csum = ql_get_rx_csum, diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c index 42ad811ec313..4de054505ec6 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -1680,6 +1680,13 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, return; } + /* loopback self test for ethtool */ + if (test_bit(QL_SELFTEST, &qdev->flags)) { + ql_check_lb_frame(qdev, skb); + dev_kfree_skb_any(skb); + return; + } + prefetch(skb->data); skb->dev = ndev; if (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) { @@ -2248,6 +2255,7 @@ static netdev_tx_t qlge_send(struct sk_buff *skb, struct net_device *ndev) return NETDEV_TX_OK; } + static void ql_free_shadow_space(struct ql_adapter *qdev) { if (qdev->rx_ring_shadow_reg_area) { @@ -4174,7 +4182,6 @@ err_out: return err; } - static const struct net_device_ops qlge_netdev_ops = { .ndo_open = qlge_open, .ndo_stop = qlge_close, @@ -4243,10 +4250,21 @@ static int __devinit qlge_probe(struct pci_dev *pdev, } ql_link_off(qdev); ql_display_dev_info(ndev); + atomic_set(&qdev->lb_count, 0); cards_found++; return 0; } +netdev_tx_t ql_lb_send(struct sk_buff *skb, struct net_device *ndev) +{ + return qlge_send(skb, ndev); +} + +int ql_clean_lb_rx_ring(struct rx_ring *rx_ring, int budget) +{ + return ql_clean_inbound_rx_ring(rx_ring, budget); +} + static void __devexit qlge_remove(struct pci_dev *pdev) { struct net_device *ndev = pci_get_drvdata(pdev); -- 2.34.1