diff options
author | David S. Miller <davem@davemloft.net> | 2017-10-14 18:51:52 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-10-14 18:51:52 -0700 |
commit | 8f718fa6bb668836dce3ca1ab8d29ce4b029a4a7 (patch) | |
tree | ddddaea1adba2f60654baee595a6f80a98b6767f | |
parent | 3efc93c2bc243f940beb3324f67aa14e223abdd1 (diff) | |
parent | 5b1e1a9ce06fd94b563d6c3dd896589231995d89 (diff) | |
download | linux-8f718fa6bb668836dce3ca1ab8d29ce4b029a4a7.tar.bz2 |
Merge branch 'bnxt_en-fixes'
Michael Chan says:
====================
bnxt_en: bug fixes.
Various bug fixes for the VF/PF link change logic, VF resource checking,
potential firmware response corruption on NVRAM and DCB parameters,
and reading the wrong register for PCIe link speed on the VF.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 99 | ||||
-rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.h | 5 | ||||
-rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 23 | ||||
-rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 8 | ||||
-rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 11 |
5 files changed, 112 insertions, 34 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index aacec8bc19d5..dc5de275352a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -214,6 +214,8 @@ static const u16 bnxt_async_events_arr[] = { ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE, }; +static struct workqueue_struct *bnxt_pf_wq; + static bool bnxt_vf_pciid(enum board_idx idx) { return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF); @@ -1024,12 +1026,28 @@ static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_napi *bnapi, return 0; } +static void bnxt_queue_sp_work(struct bnxt *bp) +{ + if (BNXT_PF(bp)) + queue_work(bnxt_pf_wq, &bp->sp_task); + else + schedule_work(&bp->sp_task); +} + +static void bnxt_cancel_sp_work(struct bnxt *bp) +{ + if (BNXT_PF(bp)) + flush_workqueue(bnxt_pf_wq); + else + cancel_work_sync(&bp->sp_task); +} + static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) { if (!rxr->bnapi->in_reset) { rxr->bnapi->in_reset = true; set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); } rxr->rx_next_cons = 0xffff; } @@ -1717,7 +1735,7 @@ static int bnxt_async_event_process(struct bnxt *bp, default: goto async_event_process_exit; } - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); async_event_process_exit: bnxt_ulp_async_events(bp, cmpl); return 0; @@ -1751,7 +1769,7 @@ static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp) set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap); set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event); - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); break; case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT: @@ -3448,6 +3466,12 @@ int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false); } +int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len, + int timeout) +{ + return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true); +} + int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) { int rc; @@ -6327,7 +6351,9 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) } if (link_re_init) { + mutex_lock(&bp->link_lock); rc = bnxt_update_phy_setting(bp); + mutex_unlock(&bp->link_lock); if (rc) netdev_warn(bp->dev, "failed to update phy settings\n"); } @@ -6647,7 +6673,7 @@ static void bnxt_set_rx_mode(struct net_device *dev) vnic->rx_mask = mask; set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event); - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); } } @@ -6920,7 +6946,7 @@ static void bnxt_tx_timeout(struct net_device *dev) netdev_err(bp->dev, "TX timeout detected, starting reset task!\n"); set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); } #ifdef CONFIG_NET_POLL_CONTROLLER @@ -6952,7 +6978,7 @@ static void bnxt_timer(unsigned long data) if (bp->link_info.link_up && (bp->flags & BNXT_FLAG_PORT_STATS) && bp->stats_coal_ticks) { set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event); - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); } bnxt_restart_timer: mod_timer(&bp->timer, jiffies + bp->current_interval); @@ -7025,30 +7051,28 @@ static void bnxt_sp_task(struct work_struct *work) if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) bnxt_hwrm_port_qstats(bp); - /* These functions below will clear BNXT_STATE_IN_SP_TASK. They - * must be the last functions to be called before exiting. - */ if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) { - int rc = 0; + int rc; + mutex_lock(&bp->link_lock); if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event)) bnxt_hwrm_phy_qcaps(bp); - bnxt_rtnl_lock_sp(bp); - if (test_bit(BNXT_STATE_OPEN, &bp->state)) - rc = bnxt_update_link(bp, true); - bnxt_rtnl_unlock_sp(bp); + rc = bnxt_update_link(bp, true); + mutex_unlock(&bp->link_lock); if (rc) netdev_err(bp->dev, "SP task can't update link (rc: %x)\n", rc); } if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) { - bnxt_rtnl_lock_sp(bp); - if (test_bit(BNXT_STATE_OPEN, &bp->state)) - bnxt_get_port_module_status(bp); - bnxt_rtnl_unlock_sp(bp); + mutex_lock(&bp->link_lock); + bnxt_get_port_module_status(bp); + mutex_unlock(&bp->link_lock); } + /* These functions below will clear BNXT_STATE_IN_SP_TASK. They + * must be the last functions to be called before exiting. + */ if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event)) bnxt_reset(bp, false); @@ -7433,7 +7457,7 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, spin_unlock_bh(&bp->ntp_fltr_lock); set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event); - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); return new_fltr->sw_id; @@ -7516,7 +7540,7 @@ static void bnxt_udp_tunnel_add(struct net_device *dev, if (bp->vxlan_port_cnt == 1) { bp->vxlan_port = ti->port; set_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event); - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); } break; case UDP_TUNNEL_TYPE_GENEVE: @@ -7533,7 +7557,7 @@ static void bnxt_udp_tunnel_add(struct net_device *dev, return; } - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); } static void bnxt_udp_tunnel_del(struct net_device *dev, @@ -7572,7 +7596,7 @@ static void bnxt_udp_tunnel_del(struct net_device *dev, return; } - schedule_work(&bp->sp_task); + bnxt_queue_sp_work(bp); } static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, @@ -7720,7 +7744,7 @@ static void bnxt_remove_one(struct pci_dev *pdev) pci_disable_pcie_error_reporting(pdev); unregister_netdev(dev); bnxt_shutdown_tc(bp); - cancel_work_sync(&bp->sp_task); + bnxt_cancel_sp_work(bp); bp->sp_event = 0; bnxt_clear_int_mode(bp); @@ -7748,6 +7772,7 @@ static int bnxt_probe_phy(struct bnxt *bp) rc); return rc; } + mutex_init(&bp->link_lock); rc = bnxt_update_link(bp, false); if (rc) { @@ -7946,7 +7971,7 @@ static void bnxt_parse_log_pcie_link(struct bnxt *bp) enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN; enum pci_bus_speed speed = PCI_SPEED_UNKNOWN; - if (pcie_get_minimum_link(bp->pdev, &speed, &width) || + if (pcie_get_minimum_link(pci_physfn(bp->pdev), &speed, &width) || speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN) netdev_info(bp->dev, "Failed to determine PCIe Link Info\n"); else @@ -8138,8 +8163,17 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) else device_set_wakeup_capable(&pdev->dev, false); - if (BNXT_PF(bp)) + if (BNXT_PF(bp)) { + if (!bnxt_pf_wq) { + bnxt_pf_wq = + create_singlethread_workqueue("bnxt_pf_wq"); + if (!bnxt_pf_wq) { + dev_err(&pdev->dev, "Unable to create workqueue.\n"); + goto init_err_pci_clean; + } + } bnxt_init_tc(bp); + } rc = register_netdev(dev); if (rc) @@ -8375,4 +8409,17 @@ static struct pci_driver bnxt_pci_driver = { #endif }; -module_pci_driver(bnxt_pci_driver); +static int __init bnxt_init(void) +{ + return pci_register_driver(&bnxt_pci_driver); +} + +static void __exit bnxt_exit(void) +{ + pci_unregister_driver(&bnxt_pci_driver); + if (bnxt_pf_wq) + destroy_workqueue(bnxt_pf_wq); +} + +module_init(bnxt_init); +module_exit(bnxt_exit); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 7b888d4b2b55..c911e69ff25f 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1290,6 +1290,10 @@ struct bnxt { unsigned long *ntp_fltr_bmap; int ntp_fltr_count; + /* To protect link related settings during link changes and + * ethtool settings changes. + */ + struct mutex link_lock; struct bnxt_link_info link_info; struct ethtool_eee eee; u32 lpi_tmr_lo; @@ -1358,6 +1362,7 @@ void bnxt_set_ring_params(struct bnxt *); int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode); void bnxt_hwrm_cmd_hdr_init(struct bnxt *, void *, u16, u16, u16); int _hwrm_send_message(struct bnxt *, void *, u32, int); +int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 len, int timeout); int hwrm_send_message(struct bnxt *, void *, u32, int); int hwrm_send_message_silent(struct bnxt *, void *, u32, int); int bnxt_hwrm_func_rgtr_async_events(struct bnxt *bp, unsigned long *bmap, diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index aa1f3a2c7a78..fed37cd9ae1d 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -50,7 +50,9 @@ static int bnxt_hwrm_queue_pri2cos_qcfg(struct bnxt *bp, struct ieee_ets *ets) bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PRI2COS_QCFG, -1, -1); req.flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN); - rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); if (!rc) { u8 *pri2cos = &resp->pri0_cos_queue_id; int i, j; @@ -66,6 +68,7 @@ static int bnxt_hwrm_queue_pri2cos_qcfg(struct bnxt *bp, struct ieee_ets *ets) } } } + mutex_unlock(&bp->hwrm_cmd_lock); return rc; } @@ -119,9 +122,13 @@ static int bnxt_hwrm_queue_cos2bw_qcfg(struct bnxt *bp, struct ieee_ets *ets) int rc, i; bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_COS2BW_QCFG, -1, -1); - rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); - if (rc) + + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (rc) { + mutex_unlock(&bp->hwrm_cmd_lock); return rc; + } data = &resp->queue_id0 + offsetof(struct bnxt_cos2bw_cfg, queue_id); for (i = 0; i < bp->max_tc; i++, data += sizeof(cos2bw) - 4) { @@ -143,6 +150,7 @@ static int bnxt_hwrm_queue_cos2bw_qcfg(struct bnxt *bp, struct ieee_ets *ets) } } } + mutex_unlock(&bp->hwrm_cmd_lock); return 0; } @@ -240,12 +248,17 @@ static int bnxt_hwrm_queue_pfc_qcfg(struct bnxt *bp, struct ieee_pfc *pfc) int rc; bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PFCENABLE_QCFG, -1, -1); - rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); - if (rc) + + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (rc) { + mutex_unlock(&bp->hwrm_cmd_lock); return rc; + } pri_mask = le32_to_cpu(resp->flags); pfc->pfc_en = pri_mask; + mutex_unlock(&bp->hwrm_cmd_lock); return 0; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 8eff05a3e0e4..3cbe771b3352 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -1052,6 +1052,7 @@ static int bnxt_get_link_ksettings(struct net_device *dev, u32 ethtool_speed; ethtool_link_ksettings_zero_link_mode(lk_ksettings, supported); + mutex_lock(&bp->link_lock); bnxt_fw_to_ethtool_support_spds(link_info, lk_ksettings); ethtool_link_ksettings_zero_link_mode(lk_ksettings, advertising); @@ -1099,6 +1100,7 @@ static int bnxt_get_link_ksettings(struct net_device *dev, base->port = PORT_FIBRE; } base->phy_address = link_info->phy_addr; + mutex_unlock(&bp->link_lock); return 0; } @@ -1190,6 +1192,7 @@ static int bnxt_set_link_ksettings(struct net_device *dev, if (!BNXT_SINGLE_PF(bp)) return -EOPNOTSUPP; + mutex_lock(&bp->link_lock); if (base->autoneg == AUTONEG_ENABLE) { BNXT_ETHTOOL_TO_FW_SPDS(fw_advertising, lk_ksettings, advertising); @@ -1234,6 +1237,7 @@ static int bnxt_set_link_ksettings(struct net_device *dev, rc = bnxt_hwrm_set_link_setting(bp, set_pause, false); set_setting_exit: + mutex_unlock(&bp->link_lock); return rc; } @@ -1805,7 +1809,8 @@ static int bnxt_find_nvram_item(struct net_device *dev, u16 type, u16 ordinal, req.dir_ordinal = cpu_to_le16(ordinal); req.dir_ext = cpu_to_le16(ext); req.opt_ordinal = NVM_FIND_DIR_ENTRY_REQ_OPT_ORDINAL_EQ; - rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); if (rc == 0) { if (index) *index = le16_to_cpu(output->dir_idx); @@ -1814,6 +1819,7 @@ static int bnxt_find_nvram_item(struct net_device *dev, u16 type, u16 ordinal, if (data_length) *data_length = le32_to_cpu(output->dir_data_length); } + mutex_unlock(&bp->hwrm_cmd_lock); return rc; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index d37925a8a65b..5ee18660bc33 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -502,6 +502,7 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs) int rc = 0, vfs_supported; int min_rx_rings, min_tx_rings, min_rss_ctxs; int tx_ok = 0, rx_ok = 0, rss_ok = 0; + int avail_cp, avail_stat; /* Check if we can enable requested num of vf's. At a mininum * we require 1 RX 1 TX rings for each VF. In this minimum conf @@ -509,6 +510,10 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs) */ vfs_supported = *num_vfs; + avail_cp = bp->pf.max_cp_rings - bp->cp_nr_rings; + avail_stat = bp->pf.max_stat_ctxs - bp->num_stat_ctxs; + avail_cp = min_t(int, avail_cp, avail_stat); + while (vfs_supported) { min_rx_rings = vfs_supported; min_tx_rings = vfs_supported; @@ -523,10 +528,12 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs) min_rx_rings) rx_ok = 1; } - if (bp->pf.max_vnics - bp->nr_vnics < min_rx_rings) + if (bp->pf.max_vnics - bp->nr_vnics < min_rx_rings || + avail_cp < min_rx_rings) rx_ok = 0; - if (bp->pf.max_tx_rings - bp->tx_nr_rings >= min_tx_rings) + if (bp->pf.max_tx_rings - bp->tx_nr_rings >= min_tx_rings && + avail_cp >= min_tx_rings) tx_ok = 1; if (bp->pf.max_rsscos_ctxs - bp->rsscos_nr_ctxs >= min_rss_ctxs) |