From: Amit Kumar Salecha Date: Mon, 1 Feb 2010 05:24:59 +0000 (+0000) Subject: qlcnic: add interrupt diagnostic test X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7eb9855d68faabe0004ed18c2af1f0974d3c2c63;p=linux-beck.git qlcnic: add interrupt diagnostic test Interrupt test (offline) added in ethtool self test. Register a temporary interrupt handler and then send command to fw to raise an interrupt. Signed-off-by: Sucheta Chakraborty Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h index 514e805f3ab3..a5a67e9b5e10 100644 --- a/drivers/net/qlcnic/qlcnic.h +++ b/drivers/net/qlcnic/qlcnic.h @@ -560,6 +560,8 @@ struct qlcnic_recv_context { /* * Context state */ +#define QLCHAL_VERSION 1 + #define QLCNIC_HOST_CTX_STATE_ACTIVE 2 /* @@ -894,6 +896,8 @@ struct qlcnic_mac_req { #define __QLCNIC_RESETTING 2 #define __QLCNIC_START_FW 4 +#define QLCNIC_INTERRUPT_TEST 1 + struct qlcnic_adapter { struct qlcnic_hardware_context ahw; @@ -946,9 +950,10 @@ struct qlcnic_adapter { u32 heartbit; u8 dev_state; + u8 diag_test; + u8 diag_cnt; u8 rsrd1; - u32 rsrd2; - + u16 rsrd2; u8 mac_addr[ETH_ALEN]; @@ -1064,6 +1069,10 @@ int qlcnic_get_mac_addr(struct qlcnic_adapter *adapter, u64 *mac); /* Functions from qlcnic_main.c */ int qlcnic_reset_context(struct qlcnic_adapter *); +u32 qlcnic_issue_cmd(struct qlcnic_adapter *adapter, + u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd); +void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings); +int qlcnic_diag_alloc_res(struct net_device *netdev, int test); /* * QLOGIC Board information diff --git a/drivers/net/qlcnic/qlcnic_ctx.c b/drivers/net/qlcnic/qlcnic_ctx.c index 71c16a183458..0a6a39914aec 100644 --- a/drivers/net/qlcnic/qlcnic_ctx.c +++ b/drivers/net/qlcnic/qlcnic_ctx.c @@ -24,8 +24,6 @@ #include "qlcnic.h" -#define QLCHAL_VERSION 1 - static u32 qlcnic_poll_rsp(struct qlcnic_adapter *adapter) { @@ -45,7 +43,7 @@ qlcnic_poll_rsp(struct qlcnic_adapter *adapter) return rsp; } -static u32 +u32 qlcnic_issue_cmd(struct qlcnic_adapter *adapter, u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd) { diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c index 7212319760ba..58c50ed791de 100644 --- a/drivers/net/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/qlcnic/qlcnic_ethtool.c @@ -65,7 +65,8 @@ static const struct qlcnic_stats qlcnic_gstrings_stats[] = { static const char qlcnic_gstrings_test[][ETH_GSTRING_LEN] = { "Register_Test_on_offline", - "Link_Test_on_offline" + "Link_Test_on_offline", + "Interrupt_Test_offline" }; #define QLCNIC_TEST_LEN ARRAY_SIZE(qlcnic_gstrings_test) @@ -613,12 +614,50 @@ static int qlcnic_get_sset_count(struct net_device *dev, int sset) } } +static int qlcnic_irq_test(struct net_device *netdev) +{ + struct qlcnic_adapter *adapter = netdev_priv(netdev); + int max_sds_rings = adapter->max_sds_rings; + int ret; + + if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) + return -EIO; + + ret = qlcnic_diag_alloc_res(netdev, QLCNIC_INTERRUPT_TEST); + if (ret) + goto clear_it; + + adapter->diag_cnt = 0; + ret = qlcnic_issue_cmd(adapter, adapter->ahw.pci_func, + QLCHAL_VERSION, adapter->portnum, 0, 0, 0x00000011); + if (ret) + goto done; + + msleep(10); + + ret = !adapter->diag_cnt; + +done: + qlcnic_diag_free_res(netdev, max_sds_rings); + +clear_it: + adapter->max_sds_rings = max_sds_rings; + clear_bit(__QLCNIC_RESETTING, &adapter->state); + return ret; +} + static void qlcnic_diag_test(struct net_device *dev, struct ethtool_test *eth_test, u64 *data) { memset(data, 0, sizeof(u64) * QLCNIC_TEST_LEN); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + data[2] = qlcnic_irq_test(dev); + if (data[2]) + eth_test->flags |= ETH_TEST_FL_FAILED; + } + data[0] = qlcnic_reg_test(dev); if (data[0]) eth_test->flags |= ETH_TEST_FL_FAILED; diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c index 7259adc32631..a8b07120d362 100644 --- a/drivers/net/qlcnic/qlcnic_main.c +++ b/drivers/net/qlcnic/qlcnic_main.c @@ -88,6 +88,7 @@ static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter); static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter); static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); +static irqreturn_t qlcnic_tmp_intr(int irq, void *data); static irqreturn_t qlcnic_intr(int irq, void *data); static irqreturn_t qlcnic_msi_intr(int irq, void *data); static irqreturn_t qlcnic_msix_intr(int irq, void *data); @@ -720,13 +721,20 @@ qlcnic_request_irq(struct qlcnic_adapter *adapter) struct net_device *netdev = adapter->netdev; struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; - if (adapter->flags & QLCNIC_MSIX_ENABLED) - handler = qlcnic_msix_intr; - else if (adapter->flags & QLCNIC_MSI_ENABLED) - handler = qlcnic_msi_intr; - else { - flags |= IRQF_SHARED; - handler = qlcnic_intr; + if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { + handler = qlcnic_tmp_intr; + if (!QLCNIC_IS_MSI_FAMILY(adapter)) + flags |= IRQF_SHARED; + + } else { + if (adapter->flags & QLCNIC_MSIX_ENABLED) + handler = qlcnic_msix_intr; + else if (adapter->flags & QLCNIC_MSI_ENABLED) + handler = qlcnic_msi_intr; + else { + flags |= IRQF_SHARED; + handler = qlcnic_intr; + } } adapter->irq = netdev->irq; @@ -923,6 +931,60 @@ qlcnic_detach(struct qlcnic_adapter *adapter) adapter->is_up = 0; } +void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings) +{ + struct qlcnic_adapter *adapter = netdev_priv(netdev); + struct qlcnic_host_sds_ring *sds_ring; + int ring; + + for (ring = 0; ring < adapter->max_sds_rings; ring++) { + sds_ring = &adapter->recv_ctx.sds_rings[ring]; + qlcnic_disable_int(sds_ring); + } + + qlcnic_detach(adapter); + + adapter->diag_test = 0; + adapter->max_sds_rings = max_sds_rings; + + if (qlcnic_attach(adapter)) + return; + + if (netif_running(netdev)) + __qlcnic_up(adapter, netdev); + + netif_device_attach(netdev); +} + +int qlcnic_diag_alloc_res(struct net_device *netdev, int test) +{ + struct qlcnic_adapter *adapter = netdev_priv(netdev); + struct qlcnic_host_sds_ring *sds_ring; + int ring; + int ret; + + netif_device_detach(netdev); + + if (netif_running(netdev)) + __qlcnic_down(adapter, netdev); + + qlcnic_detach(adapter); + + adapter->max_sds_rings = 1; + adapter->diag_test = test; + + ret = qlcnic_attach(adapter); + if (ret) + return ret; + + for (ring = 0; ring < adapter->max_sds_rings; ring++) { + sds_ring = &adapter->recv_ctx.sds_rings[ring]; + qlcnic_enable_int(sds_ring); + } + + return 0; +} + int qlcnic_reset_context(struct qlcnic_adapter *adapter) { @@ -1689,10 +1751,8 @@ static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev) return stats; } -static irqreturn_t qlcnic_intr(int irq, void *data) +static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter) { - struct qlcnic_host_sds_ring *sds_ring = data; - struct qlcnic_adapter *adapter = sds_ring->adapter; u32 status; status = readl(adapter->isr_int_vec); @@ -1710,6 +1770,38 @@ static irqreturn_t qlcnic_intr(int irq, void *data) readl(adapter->isr_int_vec); readl(adapter->isr_int_vec); + return IRQ_HANDLED; +} + +static irqreturn_t qlcnic_tmp_intr(int irq, void *data) +{ + struct qlcnic_host_sds_ring *sds_ring = data; + struct qlcnic_adapter *adapter = sds_ring->adapter; + + if (adapter->flags & QLCNIC_MSIX_ENABLED) + goto done; + else if (adapter->flags & QLCNIC_MSI_ENABLED) { + writel(0xffffffff, adapter->tgt_status_reg); + goto done; + } + + if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) + return IRQ_NONE; + +done: + adapter->diag_cnt++; + qlcnic_enable_int(sds_ring); + return IRQ_HANDLED; +} + +static irqreturn_t qlcnic_intr(int irq, void *data) +{ + struct qlcnic_host_sds_ring *sds_ring = data; + struct qlcnic_adapter *adapter = sds_ring->adapter; + + if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) + return IRQ_NONE; + napi_schedule(&sds_ring->napi); return IRQ_HANDLED;