From 3b43bc011b31d52e3923a4eac7951a8b4e528acb Mon Sep 17 00:00:00 2001 From: Jonathan Toppins Date: Wed, 2 Oct 2019 18:23:18 -0400 Subject: [PATCH 63/96] [netdrv] bnxt_en: Prepare bnxt_init_one() to be called multiple times Message-id: <1d65105ec743b3e52499fccd91176b5b117cf449.1570027456.git.jtoppins@redhat.com> Patchwork-id: 276482 O-Subject: [RHEL-8.2 PATCH 56/78] bnxt_en: Prepare bnxt_init_one() to be called multiple times. Bugzilla: 1724766 RH-Acked-by: John Linville RH-Acked-by: Jarod Wilson In preparation for the new firmware reset feature, some of the logic in bnxt_init_one() and related functions will be called again after firmware has reset. Reset some of the flags and capabilities so that everything that can change can be re-initialized. Refactor some functions to probe firmware versions and capabilities. Check some buffers before allocating as they may have been allocated previously. Signed-off-by: Michael Chan Signed-off-by: David S. Miller (cherry picked from commit ba642ab773db97c32293547485f562d2dfc06666) Bugzilla: 1724766 Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=23809532 Tested: build, boot, basic ping Signed-off-by: Jonathan Toppins Signed-off-by: Bruno Meneguele --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 126 +++++++++++++++------- drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 2 + drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 5 +- 3 files changed, 93 insertions(+), 40 deletions(-) Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt.c =================================================================== --- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt.c 2020-02-06 16:23:18.605486578 +0100 +++ src/drivers/net/ethernet/broadcom/bnxt/bnxt.c 2020-02-06 16:23:18.730485431 +0100 @@ -3560,6 +3560,9 @@ { struct pci_dev *pdev = bp->pdev; + if (bp->hwrm_cmd_kong_resp_addr) + return 0; + bp->hwrm_cmd_kong_resp_addr = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &bp->hwrm_cmd_kong_resp_dma_addr, @@ -3599,6 +3602,9 @@ { struct pci_dev *pdev = bp->pdev; + if (bp->hwrm_short_cmd_req_addr) + return 0; + bp->hwrm_short_cmd_req_addr = dma_alloc_coherent(&pdev->dev, bp->hwrm_max_ext_req_len, &bp->hwrm_short_cmd_req_dma_addr, @@ -5022,6 +5028,7 @@ int rc; bp->hw_ring_stats_size = sizeof(struct ctx_hw_stats); + bp->flags &= ~(BNXT_FLAG_NEW_RSS_CAP | BNXT_FLAG_ROCE_MIRROR_CAP); if (bp->hwrm_spec_code < 0x10600) return 0; @@ -6876,6 +6883,7 @@ pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows); pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows); pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows); + bp->flags &= ~BNXT_FLAG_WOL_CAP; if (flags & FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED) bp->flags |= BNXT_FLAG_WOL_CAP; } else { @@ -7004,20 +7012,30 @@ return rc; } -static int bnxt_hwrm_ver_get(struct bnxt *bp) +static int __bnxt_hwrm_ver_get(struct bnxt *bp, bool silent) { - int rc; struct hwrm_ver_get_input req = {0}; - struct hwrm_ver_get_output *resp = bp->hwrm_cmd_resp_addr; - u32 dev_caps_cfg; + int rc; - bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN; bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VER_GET, -1, -1); req.hwrm_intf_maj = HWRM_VERSION_MAJOR; req.hwrm_intf_min = HWRM_VERSION_MINOR; req.hwrm_intf_upd = HWRM_VERSION_UPDATE; + + rc = bnxt_hwrm_do_send_msg(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT, + silent); + return rc; +} + +static int bnxt_hwrm_ver_get(struct bnxt *bp) +{ + struct hwrm_ver_get_output *resp = bp->hwrm_cmd_resp_addr; + u32 dev_caps_cfg; + int rc; + + bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN; mutex_lock(&bp->hwrm_cmd_lock); - rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + rc = __bnxt_hwrm_ver_get(bp, false); if (rc) goto hwrm_ver_get_exit; @@ -8186,6 +8204,9 @@ struct hwrm_port_phy_qcaps_output *resp = bp->hwrm_cmd_resp_addr; struct bnxt_link_info *link_info = &bp->link_info; + bp->flags &= ~BNXT_FLAG_EEE_CAP; + if (bp->test_info) + bp->test_info->flags &= ~BNXT_TEST_FL_EXT_LPBK; if (bp->hwrm_spec_code < 0x10201) return 0; @@ -8551,6 +8572,7 @@ struct bnxt_pf_info *pf = &bp->pf; int rc; + bp->num_leds = 0; if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601) return 0; @@ -8645,6 +8667,7 @@ { u16 handle = 0; + bp->wol = 0; if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_WOL_CAP)) return; @@ -8691,6 +8714,9 @@ { struct pci_dev *pdev = bp->pdev; + if (bp->hwmon_dev) + return; + bp->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev, DRV_MODULE_NAME, bp, bnxt_groups); @@ -10007,6 +10033,53 @@ return 0; } +static void bnxt_set_dflt_rss_hash_type(struct bnxt *bp) +{ + bp->flags &= ~BNXT_FLAG_UDP_RSS_CAP; + bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 | + VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 | + VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 | + VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6; + if (BNXT_CHIP_P4(bp) && bp->hwrm_spec_code >= 0x10501) { + bp->flags |= BNXT_FLAG_UDP_RSS_CAP; + bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 | + VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; + } +} + +static void bnxt_set_dflt_rfs(struct bnxt *bp) +{ + struct net_device *dev = bp->dev; + + dev->hw_features &= ~NETIF_F_NTUPLE; + dev->features &= ~NETIF_F_NTUPLE; + bp->flags &= ~BNXT_FLAG_RFS; + if (bnxt_rfs_supported(bp)) { + dev->hw_features |= NETIF_F_NTUPLE; + if (bnxt_rfs_capable(bp)) { + bp->flags |= BNXT_FLAG_RFS; + dev->features |= NETIF_F_NTUPLE; + } + } +} + +static void bnxt_fw_init_one_p3(struct bnxt *bp) +{ + struct pci_dev *pdev = bp->pdev; + + bnxt_set_dflt_rss_hash_type(bp); + bnxt_set_dflt_rfs(bp); + + bnxt_get_wol_settings(bp); + if (bp->flags & BNXT_FLAG_WOL_CAP) + device_set_wakeup_enable(&pdev->dev, bp->wol); + else + device_set_wakeup_capable(&pdev->dev, false); + + bnxt_hwrm_set_cache_line_size(bp, cache_line_size()); + bnxt_hwrm_coal_params_qcaps(bp); +} + static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev) { int rc; @@ -10636,7 +10709,7 @@ free_netdev(dev); } -static int bnxt_probe_phy(struct bnxt *bp) +static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt) { int rc = 0; struct bnxt_link_info *link_info = &bp->link_info; @@ -10647,8 +10720,6 @@ rc); return rc; } - mutex_init(&bp->link_lock); - rc = bnxt_update_link(bp, false); if (rc) { netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n", @@ -10662,6 +10733,9 @@ if (link_info->auto_link_speeds && !link_info->support_auto_speeds) link_info->support_auto_speeds = link_info->support_speeds; + if (!fw_dflt) + return 0; + /*initialize the ethool setting copy with NVM settings */ if (BNXT_AUTO_MODE(link_info->auto_mode)) { link_info->autoneg = BNXT_AUTONEG_SPEED; @@ -10682,7 +10756,7 @@ link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH; else link_info->req_flow_ctrl = link_info->force_pause_setting; - return rc; + return 0; } static int bnxt_get_max_irq(struct pci_dev *pdev) @@ -10986,6 +11060,7 @@ goto init_err_pci_clean; mutex_init(&bp->hwrm_cmd_lock); + mutex_init(&bp->link_lock); rc = bnxt_fw_init_one_p1(bp); if (rc) @@ -11061,7 +11136,7 @@ dev->min_mtu = ETH_ZLEN; dev->max_mtu = bp->max_mtu; - rc = bnxt_probe_phy(bp); + rc = bnxt_probe_phy(bp, true); if (rc) goto init_err_pci_clean; @@ -11075,24 +11150,7 @@ goto init_err_pci_clean; } - /* Default RSS hash cfg. */ - bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 | - VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 | - VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 | - VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6; - if (BNXT_CHIP_P4(bp) && bp->hwrm_spec_code >= 0x10501) { - bp->flags |= BNXT_FLAG_UDP_RSS_CAP; - bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 | - VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; - } - - if (bnxt_rfs_supported(bp)) { - dev->hw_features |= NETIF_F_NTUPLE; - if (bnxt_rfs_capable(bp)) { - bp->flags |= BNXT_FLAG_RFS; - dev->features |= NETIF_F_NTUPLE; - } - } + bnxt_fw_init_one_p3(bp); if (dev->hw_features & NETIF_F_HW_VLAN_CTAG_RX) bp->flags |= BNXT_FLAG_STRIP_VLAN; @@ -11106,16 +11164,6 @@ */ bp->tx_nr_rings_per_tc = bp->tx_nr_rings; - bnxt_get_wol_settings(bp); - if (bp->flags & BNXT_FLAG_WOL_CAP) - device_set_wakeup_enable(&pdev->dev, bp->wol); - else - device_set_wakeup_capable(&pdev->dev, false); - - bnxt_hwrm_set_cache_line_size(bp, cache_line_size()); - - bnxt_hwrm_coal_params_qcaps(bp); - if (BNXT_PF(bp)) { if (!bnxt_pf_wq) { bnxt_pf_wq = Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c =================================================================== --- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c 2020-02-06 16:23:18.306489323 +0100 +++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c 2020-02-06 16:23:18.730485431 +0100 @@ -389,6 +389,7 @@ struct hwrm_queue_dscp_qcaps_input req = {0}; int rc; + bp->max_dscp_value = 0; if (bp->hwrm_spec_code < 0x10800 || BNXT_VF(bp)) return 0; @@ -718,6 +719,7 @@ void bnxt_dcb_init(struct bnxt *bp) { + bp->dcbx_cap = 0; if (bp->hwrm_spec_code < 0x10501) return; Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c =================================================================== --- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c 2020-02-06 16:23:18.307489314 +0100 +++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c 2020-02-06 16:23:18.730485431 +0100 @@ -3350,6 +3350,7 @@ if (!(bp->fw_cap & BNXT_FW_CAP_PKG_VER)) bnxt_get_pkgver(dev); + bp->num_tests = 0; if (bp->hwrm_spec_code < 0x10704 || !BNXT_SINGLE_PF(bp)) return; @@ -3359,7 +3360,9 @@ if (rc) goto ethtool_init_exit; - test_info = kzalloc(sizeof(*bp->test_info), GFP_KERNEL); + test_info = bp->test_info; + if (!test_info) + test_info = kzalloc(sizeof(*bp->test_info), GFP_KERNEL); if (!test_info) goto ethtool_init_exit;