diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 1753 |
1 files changed, 1353 insertions, 400 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 12b0932204ba..a4b940862b83 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1,7 +1,7 @@ /******************************************************************************* * * Intel Ethernet Controller XL710 Family Linux Driver - * Copyright(c) 2013 Intel Corporation. + * Copyright(c) 2013 - 2014 Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -12,9 +12,8 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * You should have received a copy of the GNU General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. * * The full GNU General Public License is included in this distribution in * the file called "COPYING". @@ -27,6 +26,9 @@ /* Local includes */ #include "i40e.h" +#ifdef CONFIG_I40E_VXLAN +#include <net/vxlan.h> +#endif const char i40e_driver_name[] = "i40e"; static const char i40e_driver_string[] = @@ -36,22 +38,24 @@ static const char i40e_driver_string[] = #define DRV_VERSION_MAJOR 0 #define DRV_VERSION_MINOR 3 -#define DRV_VERSION_BUILD 11 +#define DRV_VERSION_BUILD 30 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \ __stringify(DRV_VERSION_MINOR) "." \ __stringify(DRV_VERSION_BUILD) DRV_KERN const char i40e_driver_version_str[] = DRV_VERSION; -static const char i40e_copyright[] = "Copyright (c) 2013 Intel Corporation."; +static const char i40e_copyright[] = "Copyright (c) 2013 - 2014 Intel Corporation."; /* a bit of forward declarations */ static void i40e_vsi_reinit_locked(struct i40e_vsi *vsi); static void i40e_handle_reset_warning(struct i40e_pf *pf); static int i40e_add_vsi(struct i40e_vsi *vsi); static int i40e_add_veb(struct i40e_veb *veb, struct i40e_vsi *vsi); -static int i40e_setup_pf_switch(struct i40e_pf *pf); +static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit); static int i40e_setup_misc_vector(struct i40e_pf *pf); static void i40e_determine_queue_usage(struct i40e_pf *pf); static int i40e_setup_pf_filter_control(struct i40e_pf *pf); +static void i40e_fdir_sb_setup(struct i40e_pf *pf); +static int i40e_veb_get_bw_info(struct i40e_veb *veb); /* i40e_pci_tbl - PCI Device ID Table * @@ -61,16 +65,16 @@ static int i40e_setup_pf_filter_control(struct i40e_pf *pf); * Class, Class Mask, private data (not used) } */ static DEFINE_PCI_DEVICE_TABLE(i40e_pci_tbl) = { - {PCI_VDEVICE(INTEL, I40E_SFP_XL710_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_SFP_X710_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_QEMU_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_KX_A_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_KX_B_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_KX_C_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_KX_D_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_QSFP_A_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_QSFP_B_DEVICE_ID), 0}, - {PCI_VDEVICE(INTEL, I40E_QSFP_C_DEVICE_ID), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_SFP_XL710), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_SFP_X710), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_QEMU), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_A), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_B), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_C), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_D), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_A), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_B), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_C), 0}, /* required last entry */ {0, } }; @@ -354,6 +358,9 @@ static struct rtnl_link_stats64 *i40e_get_netdev_stats_struct( struct rtnl_link_stats64 *vsi_stats = i40e_get_vsi_stats_struct(vsi); int i; + if (test_bit(__I40E_DOWN, &vsi->state)) + return stats; + if (!vsi->tx_rings) return stats; @@ -416,7 +423,7 @@ void i40e_vsi_reset_stats(struct i40e_vsi *vsi) memset(&vsi->net_stats_offsets, 0, sizeof(vsi->net_stats_offsets)); memset(&vsi->eth_stats, 0, sizeof(vsi->eth_stats)); memset(&vsi->eth_stats_offsets, 0, sizeof(vsi->eth_stats_offsets)); - if (vsi->rx_rings) + if (vsi->rx_rings && vsi->rx_rings[0]) { for (i = 0; i < vsi->num_queue_pairs; i++) { memset(&vsi->rx_rings[i]->stats, 0 , sizeof(vsi->rx_rings[i]->stats)); @@ -427,6 +434,7 @@ void i40e_vsi_reset_stats(struct i40e_vsi *vsi) memset(&vsi->tx_rings[i]->tx_stats, 0, sizeof(vsi->tx_rings[i]->tx_stats)); } + } vsi->stat_offsets_loaded = false; } @@ -461,7 +469,7 @@ static void i40e_stat_update48(struct i40e_hw *hw, u32 hireg, u32 loreg, { u64 new_data; - if (hw->device_id == I40E_QEMU_DEVICE_ID) { + if (hw->device_id == I40E_DEV_ID_QEMU) { new_data = rd32(hw, loreg); new_data |= ((u64)(rd32(hw, hireg) & 0xFFFF)) << 32; } else { @@ -577,10 +585,11 @@ static void i40e_update_veb_stats(struct i40e_veb *veb) i40e_stat_update32(hw, I40E_GLSW_TDPC(idx), veb->stat_offsets_loaded, &oes->tx_discards, &es->tx_discards); - i40e_stat_update32(hw, I40E_GLSW_RUPP(idx), - veb->stat_offsets_loaded, - &oes->rx_unknown_protocol, &es->rx_unknown_protocol); - + if (hw->revision_id > 0) + i40e_stat_update32(hw, I40E_GLSW_RUPP(idx), + veb->stat_offsets_loaded, + &oes->rx_unknown_protocol, + &es->rx_unknown_protocol); i40e_stat_update48(hw, I40E_GLSW_GORCH(idx), I40E_GLSW_GORCL(idx), veb->stat_offsets_loaded, &oes->rx_bytes, &es->rx_bytes); @@ -778,8 +787,8 @@ void i40e_update_stats(struct i40e_vsi *vsi) } while (u64_stats_fetch_retry_bh(&p->syncp, start)); rx_b += bytes; rx_p += packets; - rx_buf += p->rx_stats.alloc_rx_buff_failed; - rx_page += p->rx_stats.alloc_rx_page_failed; + rx_buf += p->rx_stats.alloc_buff_failed; + rx_page += p->rx_stats.alloc_page_failed; } rcu_read_unlock(); vsi->tx_restart = tx_restart; @@ -1065,7 +1074,7 @@ struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr, if (!i40e_find_filter(vsi, macaddr, f->vlan, is_vf, is_netdev)) { if (!i40e_add_filter(vsi, macaddr, f->vlan, - is_vf, is_netdev)) + is_vf, is_netdev)) return NULL; } } @@ -1207,6 +1216,10 @@ static int i40e_set_mac(struct net_device *netdev, void *p) if (ether_addr_equal(netdev->dev_addr, addr->sa_data)) return 0; + if (test_bit(__I40E_DOWN, &vsi->back->state) || + test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state)) + return -EADDRNOTAVAIL; + if (vsi->type == I40E_VSI_MAIN) { i40e_status ret; ret = i40e_aq_mac_address_write(&vsi->back->hw, @@ -1260,6 +1273,7 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, u8 offset; u16 qmap; int i; + u16 num_tc_qps = 0; sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID; offset = 0; @@ -1281,6 +1295,9 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, vsi->tc_config.numtc = numtc; vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1; + /* Number of queues per enabled TC */ + num_tc_qps = rounddown_pow_of_two(vsi->alloc_queue_pairs/numtc); + num_tc_qps = min_t(int, num_tc_qps, I40E_MAX_QUEUES_PER_TC); /* Setup queue offset/count for all TCs for given VSI */ for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { @@ -1288,30 +1305,25 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, if (vsi->tc_config.enabled_tc & (1 << i)) { /* TC is enabled */ int pow, num_qps; - vsi->tc_config.tc_info[i].qoffset = offset; switch (vsi->type) { case I40E_VSI_MAIN: - if (i == 0) - qcount = pf->rss_size; - else - qcount = pf->num_tc_qps; - vsi->tc_config.tc_info[i].qcount = qcount; + qcount = min_t(int, pf->rss_size, num_tc_qps); break; case I40E_VSI_FDIR: case I40E_VSI_SRIOV: case I40E_VSI_VMDQ2: default: - qcount = vsi->alloc_queue_pairs; - vsi->tc_config.tc_info[i].qcount = qcount; + qcount = num_tc_qps; WARN_ON(i != 0); break; } + vsi->tc_config.tc_info[i].qoffset = offset; + vsi->tc_config.tc_info[i].qcount = qcount; /* find the power-of-2 of the number of queue pairs */ - num_qps = vsi->tc_config.tc_info[i].qcount; + num_qps = qcount; pow = 0; - while (num_qps && - ((1 << pow) < vsi->tc_config.tc_info[i].qcount)) { + while (num_qps && ((1 << pow) < qcount)) { pow++; num_qps >>= 1; } @@ -1321,7 +1333,7 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, (offset << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) | (pow << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT); - offset += vsi->tc_config.tc_info[i].qcount; + offset += qcount; } else { /* TC is not enabled so set the offset to * default queue and allocate one queue @@ -1497,11 +1509,6 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) cpu_to_le16((u16)(f->vlan == I40E_VLAN_ANY ? 0 : f->vlan)); - /* vlan0 as wild card to allow packets from all vlans */ - if (f->vlan == I40E_VLAN_ANY || - (vsi->netdev && !(vsi->netdev->features & - NETIF_F_HW_VLAN_CTAG_FILTER))) - cmd_flags |= I40E_AQC_MACVLAN_DEL_IGNORE_VLAN; cmd_flags |= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH; del_list[num_del].flags = cmd_flags; num_del++; @@ -1567,12 +1574,6 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) add_list[num_add].queue_number = 0; cmd_flags |= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH; - - /* vlan0 as wild card to allow packets from all vlans */ - if (f->vlan == I40E_VLAN_ANY || (vsi->netdev && - !(vsi->netdev->features & - NETIF_F_HW_VLAN_CTAG_FILTER))) - cmd_flags |= I40E_AQC_MACVLAN_ADD_IGNORE_VLAN; add_list[num_add].flags = cpu_to_le16(cmd_flags); num_add++; @@ -1638,6 +1639,13 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) dev_info(&pf->pdev->dev, "set uni promisc failed, err %d, aq_err %d\n", aq_ret, pf->hw.aq.asq_last_status); + aq_ret = i40e_aq_set_vsi_broadcast(&vsi->back->hw, + vsi->seid, + cur_promisc, NULL); + if (aq_ret) + dev_info(&pf->pdev->dev, + "set brdcast promisc failed, err %d, aq_err %d\n", + aq_ret, pf->hw.aq.asq_last_status); } clear_bit(__I40E_CONFIG_BUSY, &vsi->state); @@ -1690,6 +1698,27 @@ static int i40e_change_mtu(struct net_device *netdev, int new_mtu) } /** + * i40e_ioctl - Access the hwtstamp interface + * @netdev: network interface device structure + * @ifr: interface request data + * @cmd: ioctl command + **/ +int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + struct i40e_netdev_priv *np = netdev_priv(netdev); + struct i40e_pf *pf = np->vsi->back; + + switch (cmd) { + case SIOCGHWTSTAMP: + return i40e_ptp_get_ts_config(pf, ifr); + case SIOCSHWTSTAMP: + return i40e_ptp_set_ts_config(pf, ifr); + default: + return -EOPNOTSUPP; + } +} + +/** * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI * @vsi: the vsi being adjusted **/ @@ -1771,7 +1800,6 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) { struct i40e_mac_filter *f, *add_f; bool is_netdev, is_vf; - int ret; is_vf = (vsi->type == I40E_VSI_SRIOV); is_netdev = !!(vsi->netdev); @@ -1797,13 +1825,6 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) } } - ret = i40e_sync_vsi_filters(vsi); - if (ret) { - dev_info(&vsi->back->pdev->dev, - "Could not sync filters for vid %d\n", vid); - return ret; - } - /* Now if we add a vlan tag, make sure to check if it is the first * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag" * with 0, so we now accept untagged and specified tagged traffic @@ -1824,7 +1845,10 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) return -ENOMEM; } } + } + /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */ + if (vid > 0 && !vsi->info.pvid) { list_for_each_entry(f, &vsi->mac_filter_list, list) { if (i40e_find_filter(vsi, f->macaddr, I40E_VLAN_ANY, is_vf, is_netdev)) { @@ -1840,10 +1864,13 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) } } } - ret = i40e_sync_vsi_filters(vsi); } - return ret; + if (test_bit(__I40E_DOWN, &vsi->back->state) || + test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state)) + return 0; + + return i40e_sync_vsi_filters(vsi); } /** @@ -1859,7 +1886,6 @@ int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) struct i40e_mac_filter *f, *add_f; bool is_vf, is_netdev; int filter_count = 0; - int ret; is_vf = (vsi->type == I40E_VSI_SRIOV); is_netdev = !!(netdev); @@ -1870,12 +1896,6 @@ int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) list_for_each_entry(f, &vsi->mac_filter_list, list) i40e_del_filter(vsi, f->macaddr, vid, is_vf, is_netdev); - ret = i40e_sync_vsi_filters(vsi); - if (ret) { - dev_info(&vsi->back->pdev->dev, "Could not sync filters\n"); - return ret; - } - /* go through all the filters for this VSI and if there is only * vid == 0 it means there are no other filters, so vid 0 must * be replaced with -1. This signifies that we should from now @@ -1918,6 +1938,10 @@ int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) } } + if (test_bit(__I40E_DOWN, &vsi->back->state) || + test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state)) + return 0; + return i40e_sync_vsi_filters(vsi); } @@ -2008,8 +2032,9 @@ int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid) vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID); vsi->info.pvid = cpu_to_le16(vid); - vsi->info.port_vlan_flags |= I40E_AQ_VSI_PVLAN_INSERT_PVID; - vsi->info.port_vlan_flags |= I40E_AQ_VSI_PVLAN_MODE_UNTAGGED; + vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_TAGGED | + I40E_AQ_VSI_PVLAN_INSERT_PVID | + I40E_AQ_VSI_PVLAN_EMOD_STR; ctxt.seid = vsi->seid; memcpy(&ctxt.info, &vsi->info, sizeof(vsi->info)); @@ -2032,8 +2057,9 @@ int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid) **/ void i40e_vsi_remove_pvid(struct i40e_vsi *vsi) { + i40e_vlan_stripping_disable(vsi); + vsi->info.pvid = 0; - i40e_vlan_rx_register(vsi->netdev, vsi->netdev->features); } /** @@ -2066,8 +2092,11 @@ static void i40e_vsi_free_tx_resources(struct i40e_vsi *vsi) { int i; + if (!vsi->tx_rings) + return; + for (i = 0; i < vsi->num_queue_pairs; i++) - if (vsi->tx_rings[i]->desc) + if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) i40e_free_tx_resources(vsi->tx_rings[i]); } @@ -2100,8 +2129,11 @@ static void i40e_vsi_free_rx_resources(struct i40e_vsi *vsi) { int i; + if (!vsi->rx_rings) + return; + for (i = 0; i < vsi->num_queue_pairs; i++) - if (vsi->rx_rings[i]->desc) + if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc) i40e_free_rx_resources(vsi->rx_rings[i]); } @@ -2121,7 +2153,7 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring) u32 qtx_ctl = 0; /* some ATR related tx ring init */ - if (vsi->back->flags & I40E_FLAG_FDIR_ATR_ENABLED) { + if (vsi->back->flags & I40E_FLAG_FD_ATR_ENABLED) { ring->atr_sample_rate = vsi->back->atr_sample_rate; ring->atr_count = 0; } else { @@ -2130,6 +2162,7 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring) /* initialize XPS */ if (ring->q_vector && ring->netdev && + vsi->tc_config.numtc <= 1 && !test_and_set_bit(__I40E_TX_XPS_INIT_DONE, &ring->state)) netif_set_xps_queue(ring->netdev, &ring->q_vector->affinity_mask, @@ -2141,8 +2174,9 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring) tx_ctx.new_context = 1; tx_ctx.base = (ring->dma / 128); tx_ctx.qlen = ring->count; - tx_ctx.fd_ena = !!(vsi->back->flags & (I40E_FLAG_FDIR_ENABLED | - I40E_FLAG_FDIR_ATR_ENABLED)); + tx_ctx.fd_ena = !!(vsi->back->flags & (I40E_FLAG_FD_SB_ENABLED | + I40E_FLAG_FD_ATR_ENABLED)); + tx_ctx.timesync_ena = !!(vsi->back->flags & I40E_FLAG_PTP); /* As part of VSI creation/update, FW allocates certain * Tx arbitration queue sets for each TC enabled for @@ -2176,7 +2210,10 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring) } /* Now associate this queue with this PCI function */ - qtx_ctl = I40E_QTX_CTL_PF_QUEUE; + if (vsi->type == I40E_VSI_VMDQ2) + qtx_ctl = I40E_QTX_CTL_VM_QUEUE; + else + qtx_ctl = I40E_QTX_CTL_PF_QUEUE; qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) & I40E_QTX_CTL_PF_INDX_MASK); wr32(hw, I40E_QTX_CTL(pf_q), qtx_ctl); @@ -2243,7 +2280,10 @@ static int i40e_configure_rx_ring(struct i40e_ring *ring) rx_ctx.tphwdesc_ena = 1; rx_ctx.tphdata_ena = 1; rx_ctx.tphhead_ena = 1; - rx_ctx.lrxqthresh = 2; + if (hw->revision_id == 0) + rx_ctx.lrxqthresh = 0; + else + rx_ctx.lrxqthresh = 2; rx_ctx.crcstrip = 1; rx_ctx.l2tsel = 1; rx_ctx.showiv = 1; @@ -2477,6 +2517,7 @@ static void i40e_enable_misc_int_causes(struct i40e_hw *hw) I40E_PFINT_ICR0_ENA_GRST_MASK | I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK | I40E_PFINT_ICR0_ENA_GPIO_MASK | + I40E_PFINT_ICR0_ENA_TIMESYNC_MASK | I40E_PFINT_ICR0_ENA_STORM_DETECT_MASK | I40E_PFINT_ICR0_ENA_HMC_ERR_MASK | I40E_PFINT_ICR0_ENA_VFLR_MASK | @@ -2485,8 +2526,8 @@ static void i40e_enable_misc_int_causes(struct i40e_hw *hw) wr32(hw, I40E_PFINT_ICR0_ENA, val); /* SW_ITR_IDX = 0, but don't change INTENA */ - wr32(hw, I40E_PFINT_DYN_CTL0, I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK | - I40E_PFINT_DYN_CTLN_INTENA_MSK_MASK); + wr32(hw, I40E_PFINT_DYN_CTL0, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK | + I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK); /* OTHER_ITR_IDX = 0 */ wr32(hw, I40E_PFINT_STAT_CTL0, 0); @@ -2532,6 +2573,19 @@ static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi) } /** + * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0 + * @pf: board private structure + **/ +void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf) +{ + struct i40e_hw *hw = &pf->hw; + + wr32(hw, I40E_PFINT_DYN_CTL0, + I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT); + i40e_flush(hw); +} + +/** * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0 * @pf: board private structure **/ @@ -2584,23 +2638,6 @@ static irqreturn_t i40e_msix_clean_rings(int irq, void *data) } /** - * i40e_fdir_clean_rings - Interrupt Handler for FDIR rings - * @irq: interrupt number - * @data: pointer to a q_vector - **/ -static irqreturn_t i40e_fdir_clean_rings(int irq, void *data) -{ - struct i40e_q_vector *q_vector = data; - - if (!q_vector->tx.ring && !q_vector->rx.ring) - return IRQ_HANDLED; - - pr_info("fdir ring cleaning needed\n"); - - return IRQ_HANDLED; -} - -/** * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts * @vsi: the VSI being configured * @basename: name for the vector @@ -2740,20 +2777,21 @@ static irqreturn_t i40e_intr(int irq, void *data) { struct i40e_pf *pf = (struct i40e_pf *)data; struct i40e_hw *hw = &pf->hw; + irqreturn_t ret = IRQ_NONE; u32 icr0, icr0_remaining; u32 val, ena_mask; icr0 = rd32(hw, I40E_PFINT_ICR0); - - val = rd32(hw, I40E_PFINT_DYN_CTL0); - val = val | I40E_PFINT_DYN_CTL0_CLEARPBA_MASK; - wr32(hw, I40E_PFINT_DYN_CTL0, val); + ena_mask = rd32(hw, I40E_PFINT_ICR0_ENA); /* if sharing a legacy IRQ, we might get called w/o an intr pending */ if ((icr0 & I40E_PFINT_ICR0_INTEVENT_MASK) == 0) - return IRQ_NONE; + goto enable_intr; - ena_mask = rd32(hw, I40E_PFINT_ICR0_ENA); + /* if interrupt but no bits showing, must be SWINT */ + if (((icr0 & ~I40E_PFINT_ICR0_INTEVENT_MASK) == 0) || + (icr0 & I40E_PFINT_ICR0_SWINT_MASK)) + pf->sw_int_count++; /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */ if (icr0 & I40E_PFINT_ICR0_QUEUE_0_MASK) { @@ -2793,14 +2831,31 @@ static irqreturn_t i40e_intr(int irq, void *data) val = rd32(hw, I40E_GLGEN_RSTAT); val = (val & I40E_GLGEN_RSTAT_RESET_TYPE_MASK) >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT; - if (val & I40E_RESET_CORER) + if (val == I40E_RESET_CORER) pf->corer_count++; - else if (val & I40E_RESET_GLOBR) + else if (val == I40E_RESET_GLOBR) pf->globr_count++; - else if (val & I40E_RESET_EMPR) + else if (val == I40E_RESET_EMPR) pf->empr_count++; } + if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK) { + icr0 &= ~I40E_PFINT_ICR0_HMC_ERR_MASK; + dev_info(&pf->pdev->dev, "HMC error interrupt\n"); + } + + if (icr0 & I40E_PFINT_ICR0_TIMESYNC_MASK) { + u32 prttsyn_stat = rd32(hw, I40E_PRTTSYN_STAT_0); + + if (prttsyn_stat & I40E_PRTTSYN_STAT_0_TXTIME_MASK) { + ena_mask &= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK; + i40e_ptp_tx_hwtstamp(pf); + prttsyn_stat &= ~I40E_PRTTSYN_STAT_0_TXTIME_MASK; + } + + wr32(hw, I40E_PRTTSYN_STAT_0, prttsyn_stat); + } + /* If a critical error is pending we have no choice but to reset the * device. * Report and mask out any remaining unexpected interrupts. @@ -2809,22 +2864,19 @@ static irqreturn_t i40e_intr(int irq, void *data) if (icr0_remaining) { dev_info(&pf->pdev->dev, "unhandled interrupt icr0=0x%08x\n", icr0_remaining); - if ((icr0_remaining & I40E_PFINT_ICR0_HMC_ERR_MASK) || - (icr0_remaining & I40E_PFINT_ICR0_PE_CRITERR_MASK) || + if ((icr0_remaining & I40E_PFINT_ICR0_PE_CRITERR_MASK) || (icr0_remaining & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK) || (icr0_remaining & I40E_PFINT_ICR0_ECC_ERR_MASK) || (icr0_remaining & I40E_PFINT_ICR0_MAL_DETECT_MASK)) { - if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK) { - dev_info(&pf->pdev->dev, "HMC error interrupt\n"); - } else { - dev_info(&pf->pdev->dev, "device will be reset\n"); - set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); - i40e_service_event_schedule(pf); - } + dev_info(&pf->pdev->dev, "device will be reset\n"); + set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); + i40e_service_event_schedule(pf); } ena_mask &= ~icr0_remaining; } + ret = IRQ_HANDLED; +enable_intr: /* re-enable interrupt causes */ wr32(hw, I40E_PFINT_ICR0_ENA, ena_mask); if (!test_bit(__I40E_DOWN, &pf->state)) { @@ -2832,6 +2884,94 @@ static irqreturn_t i40e_intr(int irq, void *data) i40e_irq_dynamic_enable_icr0(pf); } + return ret; +} + +/** + * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes + * @tx_ring: tx ring to clean + * @budget: how many cleans we're allowed + * + * Returns true if there's any budget left (e.g. the clean is finished) + **/ +static bool i40e_clean_fdir_tx_irq(struct i40e_ring *tx_ring, int budget) +{ + struct i40e_vsi *vsi = tx_ring->vsi; + u16 i = tx_ring->next_to_clean; + struct i40e_tx_buffer *tx_buf; + struct i40e_tx_desc *tx_desc; + + tx_buf = &tx_ring->tx_bi[i]; + tx_desc = I40E_TX_DESC(tx_ring, i); + i -= tx_ring->count; + + do { + struct i40e_tx_desc *eop_desc = tx_buf->next_to_watch; + + /* if next_to_watch is not set then there is no work pending */ + if (!eop_desc) + break; + + /* prevent any other reads prior to eop_desc */ + read_barrier_depends(); + + /* if the descriptor isn't done, no work yet to do */ + if (!(eop_desc->cmd_type_offset_bsz & + cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE))) + break; + + /* clear next_to_watch to prevent false hangs */ + tx_buf->next_to_watch = NULL; + + /* unmap skb header data */ + dma_unmap_single(tx_ring->dev, + dma_unmap_addr(tx_buf, dma), + dma_unmap_len(tx_buf, len), + DMA_TO_DEVICE); + + dma_unmap_len_set(tx_buf, len, 0); + + + /* move to the next desc and buffer to clean */ + tx_buf++; + tx_desc++; + i++; + if (unlikely(!i)) { + i -= tx_ring->count; + tx_buf = tx_ring->tx_bi; + tx_desc = I40E_TX_DESC(tx_ring, 0); + } + + /* update budget accounting */ + budget--; + } while (likely(budget)); + + i += tx_ring->count; + tx_ring->next_to_clean = i; + + if (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) { + i40e_irq_dynamic_enable(vsi, + tx_ring->q_vector->v_idx + vsi->base_vector); + } + return budget > 0; +} + +/** + * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring + * @irq: interrupt number + * @data: pointer to a q_vector + **/ +static irqreturn_t i40e_fdir_clean_ring(int irq, void *data) +{ + struct i40e_q_vector *q_vector = data; + struct i40e_vsi *vsi; + + if (!q_vector->tx.ring) + return IRQ_HANDLED; + + vsi = q_vector->tx.ring->vsi; + i40e_clean_fdir_tx_irq(q_vector->tx.ring, vsi->work_limit); + return IRQ_HANDLED; } @@ -2974,28 +3114,20 @@ static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable) } while (j-- && ((tx_reg >> I40E_QTX_ENA_QENA_REQ_SHIFT) ^ (tx_reg >> I40E_QTX_ENA_QENA_STAT_SHIFT)) & 1); - if (enable) { - /* is STAT set ? */ - if ((tx_reg & I40E_QTX_ENA_QENA_STAT_MASK)) { - dev_info(&pf->pdev->dev, - "Tx %d already enabled\n", i); - continue; - } - } else { - /* is !STAT set ? */ - if (!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK)) { - dev_info(&pf->pdev->dev, - "Tx %d already disabled\n", i); - continue; - } - } + /* Skip if the queue is already in the requested state */ + if (enable && (tx_reg & I40E_QTX_ENA_QENA_STAT_MASK)) + continue; + if (!enable && !(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK)) + continue; /* turn on/off the queue */ - if (enable) + if (enable) { + wr32(hw, I40E_QTX_HEAD(pf_q), 0); tx_reg |= I40E_QTX_ENA_QENA_REQ_MASK | I40E_QTX_ENA_QENA_STAT_MASK; - else + } else { tx_reg &= ~I40E_QTX_ENA_QENA_REQ_MASK; + } wr32(hw, I40E_QTX_ENA(pf_q), tx_reg); @@ -3019,6 +3151,9 @@ static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable) } } + if (hw->revision_id == 0) + mdelay(50); + return 0; } @@ -3091,9 +3226,9 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable) * @vsi: the VSI being configured * @enable: start or stop the rings **/ -static int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request) +int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request) { - int ret; + int ret = 0; /* do rx first for enable and last for disable */ if (request) { @@ -3102,10 +3237,9 @@ static int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request) return ret; ret = i40e_vsi_control_tx(vsi, request); } else { - ret = i40e_vsi_control_tx(vsi, request); - if (ret) - return ret; - ret = i40e_vsi_control_rx(vsi, request); + /* Ignore return value, we need to shutdown whatever we can */ + i40e_vsi_control_tx(vsi, request); + i40e_vsi_control_rx(vsi, request); } return ret; @@ -3131,7 +3265,8 @@ static void i40e_vsi_free_irq(struct i40e_vsi *vsi) u16 vector = i + base; /* free only the irqs that were actually requested */ - if (vsi->q_vectors[i]->num_ringpairs == 0) + if (!vsi->q_vectors[i] || + !vsi->q_vectors[i]->num_ringpairs) continue; /* clear the affinity_mask in the IRQ descriptor */ @@ -3543,7 +3678,7 @@ static int i40e_vsi_get_bw_info(struct i40e_vsi *vsi) /* Get the VSI level BW configuration per TC */ aq_ret = i40e_aq_query_vsi_ets_sla_config(hw, vsi->seid, &bw_ets_config, - NULL); + NULL); if (aq_ret) { dev_info(&pf->pdev->dev, "couldn't get pf vsi ets bw config, err %d, aq_err %d\n", @@ -3754,6 +3889,149 @@ out: } /** + * i40e_veb_config_tc - Configure TCs for given VEB + * @veb: given VEB + * @enabled_tc: TC bitmap + * + * Configures given TC bitmap for VEB (switching) element + **/ +int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc) +{ + struct i40e_aqc_configure_switching_comp_bw_config_data bw_data = {0}; + struct i40e_pf *pf = veb->pf; + int ret = 0; + int i; + + /* No TCs or already enabled TCs just return */ + if (!enabled_tc || veb->enabled_tc == enabled_tc) + return ret; + + bw_data.tc_valid_bits = enabled_tc; + /* bw_data.absolute_credits is not set (relative) */ + + /* Enable ETS TCs with equal BW Share for now */ + for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { + if (enabled_tc & (1 << i)) + bw_data.tc_bw_share_credits[i] = 1; + } + + ret = i40e_aq_config_switch_comp_bw_config(&pf->hw, veb->seid, + &bw_data, NULL); + if (ret) { + dev_info(&pf->pdev->dev, + "veb bw config failed, aq_err=%d\n", + pf->hw.aq.asq_last_status); + goto out; + } + + /* Update the BW information */ + ret = i40e_veb_get_bw_info(veb); + if (ret) { + dev_info(&pf->pdev->dev, + "Failed getting veb bw config, aq_err=%d\n", + pf->hw.aq.asq_last_status); + } + +out: + return ret; +} + +#ifdef CONFIG_I40E_DCB +/** + * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs + * @pf: PF struct + * + * Reconfigure VEB/VSIs on a given PF; it is assumed that + * the caller would've quiesce all the VSIs before calling + * this function + **/ +static void i40e_dcb_reconfigure(struct i40e_pf *pf) +{ + u8 tc_map = 0; + int ret; + u8 v; + + /* Enable the TCs available on PF to all VEBs */ + tc_map = i40e_pf_get_tc_map(pf); + for (v = 0; v < I40E_MAX_VEB; v++) { + if (!pf->veb[v]) + continue; + ret = i40e_veb_config_tc(pf->veb[v], tc_map); + if (ret) { + dev_info(&pf->pdev->dev, + "Failed configuring TC for VEB seid=%d\n", + pf->veb[v]->seid); + /* Will try to configure as many components */ + } + } + + /* Update each VSI */ + for (v = 0; v < pf->hw.func_caps.num_vsis; v++) { + if (!pf->vsi[v]) + continue; + + /* - Enable all TCs for the LAN VSI + * - For all others keep them at TC0 for now + */ + if (v == pf->lan_vsi) + tc_map = i40e_pf_get_tc_map(pf); + else + tc_map = i40e_pf_get_default_tc(pf); + + ret = i40e_vsi_config_tc(pf->vsi[v], tc_map); + if (ret) { + dev_info(&pf->pdev->dev, + "Failed configuring TC for VSI seid=%d\n", + pf->vsi[v]->seid); + /* Will try to configure as many components */ + } else { + if (pf->vsi[v]->netdev) + i40e_dcbnl_set_all(pf->vsi[v]); + } + } +} + +/** + * i40e_init_pf_dcb - Initialize DCB configuration + * @pf: PF being configured + * + * Query the current DCB configuration and cache it + * in the hardware structure + **/ +static int i40e_init_pf_dcb(struct i40e_pf *pf) +{ + struct i40e_hw *hw = &pf->hw; + int err = 0; + + if (pf->hw.func_caps.npar_enable) + goto out; + + /* Get the initial DCB configuration */ + err = i40e_init_dcb(hw); + if (!err) { + /* Device/Function is not DCBX capable */ + if ((!hw->func_caps.dcb) || + (hw->dcbx_status == I40E_DCBX_STATUS_DISABLED)) { + dev_info(&pf->pdev->dev, + "DCBX offload is not supported or is disabled for this PF.\n"); + + if (pf->flags & I40E_FLAG_MFP_ENABLED) + goto out; + + } else { + /* When status is not DISABLED then DCBX in FW */ + pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | + DCB_CAP_DCBX_VER_IEEE; + pf->flags |= I40E_FLAG_DCB_ENABLED; + } + } + +out: + return err; +} +#endif /* CONFIG_I40E_DCB */ + +/** * i40e_up_complete - Finish the last steps of bringing up a connection * @vsi: the VSI being configured **/ @@ -3957,22 +4235,28 @@ static int i40e_open(struct net_device *netdev) if (err) goto err_setup_rx; + /* Notify the stack of the actual queue counts. */ + err = netif_set_real_num_tx_queues(netdev, vsi->num_queue_pairs); + if (err) + goto err_set_queues; + + err = netif_set_real_num_rx_queues(netdev, vsi->num_queue_pairs); + if (err) + goto err_set_queues; + err = i40e_up_complete(vsi); if (err) goto err_up_complete; - if ((vsi->type == I40E_VSI_MAIN) || (vsi->type == I40E_VSI_VMDQ2)) { - err = i40e_aq_set_vsi_broadcast(&pf->hw, vsi->seid, true, NULL); - if (err) - netdev_info(netdev, - "couldn't set broadcast err %d aq_err %d\n", - err, pf->hw.aq.asq_last_status); - } +#ifdef CONFIG_I40E_VXLAN + vxlan_get_rx_port(netdev); +#endif return 0; err_up_complete: i40e_down(vsi); +err_set_queues: i40e_vsi_free_irq(vsi); err_setup_rx: i40e_vsi_free_rx_resources(vsi); @@ -4054,6 +4338,24 @@ void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags) wr32(&pf->hw, I40E_GLGEN_RTRIG, val); i40e_flush(&pf->hw); + } else if (reset_flags & (1 << __I40E_EMP_RESET_REQUESTED)) { + + /* Request a Firmware Reset + * + * Same as Global reset, plus restarting the + * embedded firmware engine. + */ + /* enable EMP Reset */ + val = rd32(&pf->hw, I40E_GLGEN_RSTENA_EMP); + val |= I40E_GLGEN_RSTENA_EMP_EMP_RST_ENA_MASK; + wr32(&pf->hw, I40E_GLGEN_RSTENA_EMP, val); + + /* force the reset */ + val = rd32(&pf->hw, I40E_GLGEN_RTRIG); + val |= I40E_GLGEN_RTRIG_EMPFWR_MASK; + wr32(&pf->hw, I40E_GLGEN_RTRIG, val); + i40e_flush(&pf->hw); + } else if (reset_flags & (1 << __I40E_PF_RESET_REQUESTED)) { /* Request a PF Reset @@ -4091,6 +4393,143 @@ void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags) } } +#ifdef CONFIG_I40E_DCB +/** + * i40e_dcb_need_reconfig - Check if DCB needs reconfig + * @pf: board private structure + * @old_cfg: current DCB config + * @new_cfg: new DCB config + **/ +bool i40e_dcb_need_reconfig(struct i40e_pf *pf, + struct i40e_dcbx_config *old_cfg, + struct i40e_dcbx_config *new_cfg) +{ + bool need_reconfig = false; + + /* Check if ETS configuration has changed */ + if (memcmp(&new_cfg->etscfg, + &old_cfg->etscfg, + sizeof(new_cfg->etscfg))) { + /* If Priority Table has changed reconfig is needed */ + if (memcmp(&new_cfg->etscfg.prioritytable, + &old_cfg->etscfg.prioritytable, + sizeof(new_cfg->etscfg.prioritytable))) { + need_reconfig = true; + dev_info(&pf->pdev->dev, "ETS UP2TC changed.\n"); + } + + if (memcmp(&new_cfg->etscfg.tcbwtable, + &old_cfg->etscfg.tcbwtable, + sizeof(new_cfg->etscfg.tcbwtable))) + dev_info(&pf->pdev->dev, "ETS TC BW Table changed.\n"); + + if (memcmp(&new_cfg->etscfg.tsatable, + &old_cfg->etscfg.tsatable, + sizeof(new_cfg->etscfg.tsatable))) + dev_info(&pf->pdev->dev, "ETS TSA Table changed.\n"); + } + + /* Check if PFC configuration has changed */ + if (memcmp(&new_cfg->pfc, + &old_cfg->pfc, + sizeof(new_cfg->pfc))) { + need_reconfig = true; + dev_info(&pf->pdev->dev, "PFC config change detected.\n"); + } + + /* Check if APP Table has changed */ + if (memcmp(&new_cfg->app, + &old_cfg->app, + sizeof(new_cfg->app))) + need_reconfig = true; + dev_info(&pf->pdev->dev, "APP Table change detected.\n"); + + return need_reconfig; +} + +/** + * i40e_handle_lldp_event - Handle LLDP Change MIB event + * @pf: board private structure + * @e: event info posted on ARQ + **/ +static int i40e_handle_lldp_event(struct i40e_pf *pf, + struct i40e_arq_event_info *e) +{ + struct i40e_aqc_lldp_get_mib *mib = + (struct i40e_aqc_lldp_get_mib *)&e->desc.params.raw; + struct i40e_hw *hw = &pf->hw; + struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; + struct i40e_dcbx_config tmp_dcbx_cfg; + bool need_reconfig = false; + int ret = 0; + u8 type; + + /* Ignore if event is not for Nearest Bridge */ + type = ((mib->type >> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT) + & I40E_AQ_LLDP_BRIDGE_TYPE_MASK); + if (type != I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE) + return ret; + + /* Check MIB Type and return if event for Remote MIB update */ + type = mib->type & I40E_AQ_LLDP_MIB_TYPE_MASK; + if (type == I40E_AQ_LLDP_MIB_REMOTE) { + /* Update the remote cached instance and return */ + ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE, + I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, + &hw->remote_dcbx_config); + goto exit; + } + + /* Convert/store the DCBX data from LLDPDU temporarily */ + memset(&tmp_dcbx_cfg, 0, sizeof(tmp_dcbx_cfg)); + ret = i40e_lldp_to_dcb_config(e->msg_buf, &tmp_dcbx_cfg); + if (ret) { + /* Error in LLDPDU parsing return */ + dev_info(&pf->pdev->dev, "Failed parsing LLDPDU from event buffer\n"); + goto exit; + } + + /* No change detected in DCBX configs */ + if (!memcmp(&tmp_dcbx_cfg, dcbx_cfg, sizeof(tmp_dcbx_cfg))) { + dev_info(&pf->pdev->dev, "No change detected in DCBX configuration.\n"); + goto exit; + } + + need_reconfig = i40e_dcb_need_reconfig(pf, dcbx_cfg, &tmp_dcbx_cfg); + + i40e_dcbnl_flush_apps(pf, &tmp_dcbx_cfg); + + /* Overwrite the new configuration */ + *dcbx_cfg = tmp_dcbx_cfg; + + if (!need_reconfig) + goto exit; + + /* Reconfiguration needed quiesce all VSIs */ + i40e_pf_quiesce_all_vsi(pf); + + /* Changes in configuration update VEB/VSI */ + i40e_dcb_reconfigure(pf); + + i40e_pf_unquiesce_all_vsi(pf); +exit: + return ret; +} +#endif /* CONFIG_I40E_DCB */ + +/** + * i40e_do_reset_safe - Protected reset path for userland calls. + * @pf: board private structure + * @reset_flags: which reset is requested + * + **/ +void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags) +{ + rtnl_lock(); + i40e_do_reset(pf, reset_flags); + rtnl_unlock(); +} + /** * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event * @pf: board private structure @@ -4245,6 +4684,9 @@ static void i40e_link_event(struct i40e_pf *pf) if (pf->vf) i40e_vc_notify_link_state(pf); + + if (pf->flags & I40E_FLAG_PTP) + i40e_ptp_set_increment(pf); } /** @@ -4326,6 +4768,8 @@ static void i40e_watchdog_subtask(struct i40e_pf *pf) for (i = 0; i < I40E_MAX_VEB; i++) if (pf->veb[i]) i40e_update_veb_stats(pf->veb[i]); + + i40e_ptp_rx_hang(pf->vsi[pf->lan_vsi]); } /** @@ -4336,6 +4780,7 @@ static void i40e_reset_subtask(struct i40e_pf *pf) { u32 reset_flags = 0; + rtnl_lock(); if (test_bit(__I40E_REINIT_REQUESTED, &pf->state)) { reset_flags |= (1 << __I40E_REINIT_REQUESTED); clear_bit(__I40E_REINIT_REQUESTED, &pf->state); @@ -4358,7 +4803,7 @@ static void i40e_reset_subtask(struct i40e_pf *pf) */ if (test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) { i40e_handle_reset_warning(pf); - return; + goto unlock; } /* If we're already down or resetting, just bail */ @@ -4366,6 +4811,9 @@ static void i40e_reset_subtask(struct i40e_pf *pf) !test_bit(__I40E_DOWN, &pf->state) && !test_bit(__I40E_CONFIG_BUSY, &pf->state)) i40e_do_reset(pf, reset_flags); + +unlock: + rtnl_unlock(); } /** @@ -4429,6 +4877,7 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf) return; do { + event.msg_size = I40E_MAX_AQ_BUF_SIZE; /* reinit each time */ ret = i40e_clean_arq_element(hw, &event, &pending); if (ret == I40E_ERR_ADMIN_QUEUE_NO_WORK) { dev_info(&pf->pdev->dev, "No ARQ event found\n"); @@ -4454,15 +4903,23 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf) break; case i40e_aqc_opc_lldp_update_mib: dev_info(&pf->pdev->dev, "ARQ: Update LLDP MIB event received\n"); +#ifdef CONFIG_I40E_DCB + rtnl_lock(); + ret = i40e_handle_lldp_event(pf, &event); + rtnl_unlock(); +#endif /* CONFIG_I40E_DCB */ break; case i40e_aqc_opc_event_lan_overflow: dev_info(&pf->pdev->dev, "ARQ LAN queue overflow event received\n"); i40e_handle_lan_overflow_event(pf, &event); break; + case i40e_aqc_opc_send_msg_to_peer: + dev_info(&pf->pdev->dev, "ARQ: Msg from other pf\n"); + break; default: dev_info(&pf->pdev->dev, - "ARQ Error: Unknown event %d received\n", - event.desc.opcode); + "ARQ Error: Unknown event 0x%04x received\n", + opcode); break; } } while (pending && (i++ < pf->adminq_work_limit)); @@ -4592,6 +5049,9 @@ static int i40e_get_capabilities(struct i40e_pf *pf) } } while (err); + /* increment MSI-X count because current FW skips one */ + pf->hw.func_caps.num_msix_vectors++; + if (pf->hw.debug_mask & I40E_DEBUG_USER) dev_info(&pf->pdev->dev, "pf=%d, num_vfs=%d, msix_pf=%d, msix_vf=%d, fd_g=%d, fd_b=%d, pf_max_q=%d num_vsi=%d\n", @@ -4603,57 +5063,89 @@ static int i40e_get_capabilities(struct i40e_pf *pf) pf->hw.func_caps.num_tx_qp, pf->hw.func_caps.num_vsis); +#define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \ + + pf->hw.func_caps.num_vfs) + if (pf->hw.revision_id == 0 && (DEF_NUM_VSI > pf->hw.func_caps.num_vsis)) { + dev_info(&pf->pdev->dev, + "got num_vsis %d, setting num_vsis to %d\n", + pf->hw.func_caps.num_vsis, DEF_NUM_VSI); + pf->hw.func_caps.num_vsis = DEF_NUM_VSI; + } + return 0; } +static int i40e_vsi_clear(struct i40e_vsi *vsi); + /** - * i40e_fdir_setup - initialize the Flow Director resources + * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband * @pf: board private structure **/ -static void i40e_fdir_setup(struct i40e_pf *pf) +static void i40e_fdir_sb_setup(struct i40e_pf *pf) { struct i40e_vsi *vsi; bool new_vsi = false; int err, i; - if (!(pf->flags & (I40E_FLAG_FDIR_ENABLED | - I40E_FLAG_FDIR_ATR_ENABLED))) + if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) return; - pf->atr_sample_rate = I40E_DEFAULT_ATR_SAMPLE_RATE; - - /* find existing or make new FDIR VSI */ + /* find existing VSI and see if it needs configuring */ vsi = NULL; - for (i = 0; i < pf->hw.func_caps.num_vsis; i++) - if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) + for (i = 0; i < pf->hw.func_caps.num_vsis; i++) { + if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) { vsi = pf->vsi[i]; + break; + } + } + + /* create a new VSI if none exists */ if (!vsi) { - vsi = i40e_vsi_setup(pf, I40E_VSI_FDIR, pf->mac_seid, 0); + vsi = i40e_vsi_setup(pf, I40E_VSI_FDIR, + pf->vsi[pf->lan_vsi]->seid, 0); if (!vsi) { dev_info(&pf->pdev->dev, "Couldn't create FDir VSI\n"); - pf->flags &= ~I40E_FLAG_FDIR_ENABLED; - return; + goto err_vsi; } new_vsi = true; } - WARN_ON(vsi->base_queue != I40E_FDIR_RING); - i40e_vsi_setup_irqhandler(vsi, i40e_fdir_clean_rings); + i40e_vsi_setup_irqhandler(vsi, i40e_fdir_clean_ring); err = i40e_vsi_setup_tx_resources(vsi); - if (!err) - err = i40e_vsi_setup_rx_resources(vsi); - if (!err) - err = i40e_vsi_configure(vsi); - if (!err && new_vsi) { + if (err) + goto err_setup_tx; + err = i40e_vsi_setup_rx_resources(vsi); + if (err) + goto err_setup_rx; + + if (new_vsi) { char int_name[IFNAMSIZ + 9]; + err = i40e_vsi_configure(vsi); + if (err) + goto err_setup_rx; snprintf(int_name, sizeof(int_name) - 1, "%s-fdir", dev_driver_string(&pf->pdev->dev)); err = i40e_vsi_request_irq(vsi, int_name); - } - if (!err) + if (err) + goto err_setup_rx; err = i40e_up_complete(vsi); + if (err) + goto err_up_complete; + } clear_bit(__I40E_NEEDS_RESTART, &vsi->state); + return; + +err_up_complete: + i40e_down(vsi); + i40e_vsi_free_irq(vsi); +err_setup_rx: + i40e_vsi_free_rx_resources(vsi); +err_setup_tx: + i40e_vsi_free_tx_resources(vsi); +err_vsi: + pf->flags &= ~I40E_FLAG_FD_SB_ENABLED; + i40e_vsi_clear(vsi); } /** @@ -4673,26 +5165,25 @@ static void i40e_fdir_teardown(struct i40e_pf *pf) } /** - * i40e_handle_reset_warning - prep for the core to reset + * i40e_prep_for_reset - prep for the core to reset * @pf: board private structure * - * Close up the VFs and other things in prep for a Core Reset, - * then get ready to rebuild the world. - **/ -static void i40e_handle_reset_warning(struct i40e_pf *pf) + * Close up the VFs and other things in prep for pf Reset. + **/ +static int i40e_prep_for_reset(struct i40e_pf *pf) { - struct i40e_driver_version dv; struct i40e_hw *hw = &pf->hw; i40e_status ret; u32 v; clear_bit(__I40E_RESET_INTR_RECEIVED, &pf->state); if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state)) - return; + return 0; dev_info(&pf->pdev->dev, "Tearing down internal switch for reset\n"); - i40e_vc_notify_reset(pf); + if (i40e_check_asq_alive(hw)) + i40e_vc_notify_reset(pf); /* quiesce the VSIs and their queues that are not already DOWN */ i40e_pf_quiesce_all_vsi(pf); @@ -4704,6 +5195,27 @@ static void i40e_handle_reset_warning(struct i40e_pf *pf) i40e_shutdown_adminq(&pf->hw); + /* call shutdown HMC */ + ret = i40e_shutdown_lan_hmc(hw); + if (ret) { + dev_info(&pf->pdev->dev, "shutdown_lan_hmc failed: %d\n", ret); + clear_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state); + } + return ret; +} + +/** + * i40e_reset_and_rebuild - reset and rebuild using a saved config + * @pf: board private structure + * @reinit: if the Main VSI needs to re-initialized. + **/ +static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit) +{ + struct i40e_driver_version dv; + struct i40e_hw *hw = &pf->hw; + i40e_status ret; + u32 v; + /* Now we wait for GRST to settle out. * We don't have to delete the VEBs or VSIs from the hw switch * because the reset will make them disappear. @@ -4731,13 +5243,6 @@ static void i40e_handle_reset_warning(struct i40e_pf *pf) goto end_core_reset; } - /* call shutdown HMC */ - ret = i40e_shutdown_lan_hmc(hw); - if (ret) { - dev_info(&pf->pdev->dev, "shutdown_lan_hmc failed: %d\n", ret); - goto end_core_reset; - } - ret = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp, hw->func_caps.num_rx_qp, pf->fcoe_hmc_cntx_num, pf->fcoe_hmc_filt_num); @@ -4751,8 +5256,16 @@ static void i40e_handle_reset_warning(struct i40e_pf *pf) goto end_core_reset; } +#ifdef CONFIG_I40E_DCB + ret = i40e_init_pf_dcb(pf); + if (ret) { + dev_info(&pf->pdev->dev, "init_pf_dcb failed: %d\n", ret); + goto end_core_reset; + } +#endif /* CONFIG_I40E_DCB */ + /* do basic switch setup */ - ret = i40e_setup_pf_switch(pf); + ret = i40e_setup_pf_switch(pf, reinit); if (ret) goto end_core_reset; @@ -4831,6 +5344,22 @@ end_core_reset: } /** + * i40e_handle_reset_warning - prep for the pf to reset, reset and rebuild + * @pf: board private structure + * + * Close up the VFs and other things in prep for a Core Reset, + * then get ready to rebuild the world. + **/ +static void i40e_handle_reset_warning(struct i40e_pf *pf) +{ + i40e_status ret; + + ret = i40e_prep_for_reset(pf); + if (!ret) + i40e_reset_and_rebuild(pf, false); +} + +/** * i40e_handle_mdd_event * @pf: pointer to the pf structure * @@ -4911,6 +5440,52 @@ static void i40e_handle_mdd_event(struct i40e_pf *pf) i40e_flush(hw); } +#ifdef CONFIG_I40E_VXLAN +/** + * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW + * @pf: board private structure + **/ +static void i40e_sync_vxlan_filters_subtask(struct i40e_pf *pf) +{ + const int vxlan_hdr_qwords = 4; + struct i40e_hw *hw = &pf->hw; + i40e_status ret; + u8 filter_index; + __be16 port; + int i; + + if (!(pf->flags & I40E_FLAG_VXLAN_FILTER_SYNC)) + return; + + pf->flags &= ~I40E_FLAG_VXLAN_FILTER_SYNC; + + for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) { + if (pf->pending_vxlan_bitmap & (1 << i)) { + pf->pending_vxlan_bitmap &= ~(1 << i); + port = pf->vxlan_ports[i]; + ret = port ? + i40e_aq_add_udp_tunnel(hw, ntohs(port), + vxlan_hdr_qwords, + I40E_AQC_TUNNEL_TYPE_VXLAN, + &filter_index, NULL) + : i40e_aq_del_udp_tunnel(hw, i, NULL); + + if (ret) { + dev_info(&pf->pdev->dev, "Failed to execute AQ command for %s port %d with index %d\n", + port ? "adding" : "deleting", + ntohs(port), port ? i : i); + + pf->vxlan_ports[i] = 0; + } else { + dev_info(&pf->pdev->dev, "%s port %d with AQ command with index %d\n", + port ? "Added" : "Deleted", + ntohs(port), port ? i : filter_index); + } + } + } +} + +#endif /** * i40e_service_task - Run the driver's async subtasks * @work: pointer to work_struct containing our data @@ -4929,6 +5504,9 @@ static void i40e_service_task(struct work_struct *work) i40e_fdir_reinit_subtask(pf); i40e_check_hang_subtask(pf); i40e_sync_filters_subtask(pf); +#ifdef CONFIG_I40E_VXLAN + i40e_sync_vxlan_filters_subtask(pf); +#endif i40e_clean_adminq_subtask(pf); i40e_service_event_complete(pf); @@ -5006,6 +5584,42 @@ static int i40e_set_num_rings_in_vsi(struct i40e_vsi *vsi) } /** + * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi + * @type: VSI pointer + * @alloc_qvectors: a bool to specify if q_vectors need to be allocated. + * + * On error: returns error code (negative) + * On success: returns 0 + **/ +static int i40e_vsi_alloc_arrays(struct i40e_vsi *vsi, bool alloc_qvectors) +{ + int size; + int ret = 0; + + /* allocate memory for both Tx and Rx ring pointers */ + size = sizeof(struct i40e_ring *) * vsi->alloc_queue_pairs * 2; + vsi->tx_rings = kzalloc(size, GFP_KERNEL); + if (!vsi->tx_rings) + return -ENOMEM; + vsi->rx_rings = &vsi->tx_rings[vsi->alloc_queue_pairs]; + + if (alloc_qvectors) { + /* allocate memory for q_vector pointers */ + size = sizeof(struct i40e_q_vectors *) * vsi->num_q_vectors; + vsi->q_vectors = kzalloc(size, GFP_KERNEL); + if (!vsi->q_vectors) { + ret = -ENOMEM; + goto err_vectors; + } + } + return ret; + +err_vectors: + kfree(vsi->tx_rings); + return ret; +} + +/** * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF * @pf: board private structure * @type: type of VSI @@ -5017,8 +5631,6 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type) { int ret = -ENODEV; struct i40e_vsi *vsi; - int sz_vectors; - int sz_rings; int vsi_idx; int i; @@ -5068,22 +5680,9 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type) if (ret) goto err_rings; - /* allocate memory for ring pointers */ - sz_rings = sizeof(struct i40e_ring *) * vsi->alloc_queue_pairs * 2; - vsi->tx_rings = kzalloc(sz_rings, GFP_KERNEL); - if (!vsi->tx_rings) { - ret = -ENOMEM; + ret = i40e_vsi_alloc_arrays(vsi, true); + if (ret) goto err_rings; - } - vsi->rx_rings = &vsi->tx_rings[vsi->alloc_queue_pairs]; - - /* allocate memory for q_vector pointers */ - sz_vectors = sizeof(struct i40e_q_vectors *) * vsi->num_q_vectors; - vsi->q_vectors = kzalloc(sz_vectors, GFP_KERNEL); - if (!vsi->q_vectors) { - ret = -ENOMEM; - goto err_vectors; - } /* Setup default MSIX irq handler for VSI */ i40e_vsi_setup_irqhandler(vsi, i40e_msix_clean_rings); @@ -5092,8 +5691,6 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type) ret = vsi_idx; goto unlock_pf; -err_vectors: - kfree(vsi->tx_rings); err_rings: pf->next_vsi = i - 1; kfree(vsi); @@ -5103,6 +5700,26 @@ unlock_pf: } /** + * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI + * @type: VSI pointer + * @free_qvectors: a bool to specify if q_vectors need to be freed. + * + * On error: returns error code (negative) + * On success: returns 0 + **/ +static void i40e_vsi_free_arrays(struct i40e_vsi *vsi, bool free_qvectors) +{ + /* free the ring and vector containers */ + if (free_qvectors) { + kfree(vsi->q_vectors); + vsi->q_vectors = NULL; + } + kfree(vsi->tx_rings); + vsi->tx_rings = NULL; + vsi->rx_rings = NULL; +} + +/** * i40e_vsi_clear - Deallocate the VSI provided * @vsi: the VSI being un-configured **/ @@ -5138,9 +5755,7 @@ static int i40e_vsi_clear(struct i40e_vsi *vsi) i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx); i40e_put_lump(pf->irq_pile, vsi->base_vector, vsi->idx); - /* free the ring and vector containers */ - kfree(vsi->q_vectors); - kfree(vsi->tx_rings); + i40e_vsi_free_arrays(vsi, true); pf->vsi[vsi->idx] = NULL; if (vsi->idx < pf->next_vsi) @@ -5158,18 +5773,17 @@ free_vsi: * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI * @vsi: the VSI being cleaned **/ -static s32 i40e_vsi_clear_rings(struct i40e_vsi *vsi) +static void i40e_vsi_clear_rings(struct i40e_vsi *vsi) { int i; - if (vsi->tx_rings[0]) + if (vsi->tx_rings && vsi->tx_rings[0]) { for (i = 0; i < vsi->alloc_queue_pairs; i++) { kfree_rcu(vsi->tx_rings[i], rcu); vsi->tx_rings[i] = NULL; vsi->rx_rings[i] = NULL; } - - return 0; + } } /** @@ -5186,6 +5800,7 @@ static int i40e_alloc_rings(struct i40e_vsi *vsi) struct i40e_ring *tx_ring; struct i40e_ring *rx_ring; + /* allocate space for both Tx and Rx in one shot */ tx_ring = kzalloc(sizeof(struct i40e_ring) * 2, GFP_KERNEL); if (!tx_ring) goto err_out; @@ -5289,19 +5904,22 @@ static int i40e_init_msix(struct i40e_pf *pf) /* The number of vectors we'll request will be comprised of: * - Add 1 for "other" cause for Admin Queue events, etc. * - The number of LAN queue pairs - * already adjusted for the NUMA node - * assumes symmetric Tx/Rx pairing + * - Queues being used for RSS. + * We don't need as many as max_rss_size vectors. + * use rss_size instead in the calculation since that + * is governed by number of cpus in the system. + * - assumes symmetric Tx/Rx pairing * - The number of VMDq pairs * Once we count this up, try the request. * * If we can't get what we want, we'll simplify to nearly nothing * and try again. If that still fails, we punt. */ - pf->num_lan_msix = pf->num_lan_qps; + pf->num_lan_msix = pf->num_lan_qps - (pf->rss_size_max - pf->rss_size); pf->num_vmdq_msix = pf->num_vmdq_qps; v_budget = 1 + pf->num_lan_msix; v_budget += (pf->num_vmdq_vsis * pf->num_vmdq_msix); - if (pf->flags & I40E_FLAG_FDIR_ENABLED) + if (pf->flags & I40E_FLAG_FD_SB_ENABLED) v_budget++; /* Scale down if necessary, and the rings will share vectors */ @@ -5437,14 +6055,13 @@ static void i40e_init_interrupt_scheme(struct i40e_pf *pf) if (pf->flags & I40E_FLAG_MSIX_ENABLED) { err = i40e_init_msix(pf); if (err) { - pf->flags &= ~(I40E_FLAG_MSIX_ENABLED | - I40E_FLAG_RSS_ENABLED | - I40E_FLAG_MQ_ENABLED | - I40E_FLAG_DCB_ENABLED | - I40E_FLAG_SRIOV_ENABLED | - I40E_FLAG_FDIR_ENABLED | - I40E_FLAG_FDIR_ATR_ENABLED | - I40E_FLAG_VMDQ_ENABLED); + pf->flags &= ~(I40E_FLAG_MSIX_ENABLED | + I40E_FLAG_RSS_ENABLED | + I40E_FLAG_DCB_ENABLED | + I40E_FLAG_SRIOV_ENABLED | + I40E_FLAG_FD_SB_ENABLED | + I40E_FLAG_FD_ATR_ENABLED | + I40E_FLAG_VMDQ_ENABLED); /* rework the queue expectations without MSIX */ i40e_determine_queue_usage(pf); @@ -5513,15 +6130,15 @@ static int i40e_setup_misc_vector(struct i40e_pf *pf) **/ static int i40e_config_rss(struct i40e_pf *pf) { - struct i40e_hw *hw = &pf->hw; - u32 lut = 0; - int i, j; - u64 hena; /* Set of random keys generated using kernel random number generator */ static const u32 seed[I40E_PFQF_HKEY_MAX_INDEX + 1] = {0x41b01687, 0x183cfd8c, 0xce880440, 0x580cbc3c, 0x35897377, 0x328b25e1, 0x4fa98922, 0xb7d90c14, 0xd5bad70d, 0xcd15a2c1, 0xe8580225, 0x4a1e9d11, 0xfe5731be}; + struct i40e_hw *hw = &pf->hw; + u32 lut = 0; + int i, j; + u64 hena; /* Fill out hash function seed */ for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) @@ -5530,16 +6147,7 @@ static int i40e_config_rss(struct i40e_pf *pf) /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */ hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) | ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32); - hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | - ((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | - ((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) | - ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP) | - ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP) | - ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | - ((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | - ((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) | - ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4)| - ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6); + hena |= I40E_DEFAULT_RSS_HENA; wr32(hw, I40E_PFQF_HENA(0), (u32)hena); wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); @@ -5568,6 +6176,34 @@ static int i40e_config_rss(struct i40e_pf *pf) } /** + * i40e_reconfig_rss_queues - change number of queues for rss and rebuild + * @pf: board private structure + * @queue_count: the requested queue count for rss. + * + * returns 0 if rss is not enabled, if enabled returns the final rss queue + * count which may be different from the requested queue count. + **/ +int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count) +{ + if (!(pf->flags & I40E_FLAG_RSS_ENABLED)) + return 0; + + queue_count = min_t(int, queue_count, pf->rss_size_max); + queue_count = rounddown_pow_of_two(queue_count); + + if (queue_count != pf->rss_size) { + i40e_prep_for_reset(pf); + + pf->rss_size = queue_count; + + i40e_reset_and_rebuild(pf, true); + i40e_config_rss(pf); + } + dev_info(&pf->pdev->dev, "RSS count: %d\n", pf->rss_size); + return pf->rss_size; +} + +/** * i40e_sw_init - Initialize general software structures (struct i40e_pf) * @pf: board private structure to initialize * @@ -5582,6 +6218,7 @@ static int i40e_sw_init(struct i40e_pf *pf) pf->msg_enable = netif_msg_init(I40E_DEFAULT_MSG_ENABLE, (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)); + pf->hw.debug_mask = pf->msg_enable | I40E_DEBUG_DIAG; if (debug != -1 && debug != I40E_DEFAULT_MSG_ENABLE) { if (I40E_DEBUG_USER & debug) pf->hw.debug_mask = debug; @@ -5593,39 +6230,47 @@ static int i40e_sw_init(struct i40e_pf *pf) pf->flags = I40E_FLAG_RX_CSUM_ENABLED | I40E_FLAG_MSI_ENABLED | I40E_FLAG_MSIX_ENABLED | - I40E_FLAG_RX_PS_ENABLED | - I40E_FLAG_MQ_ENABLED | I40E_FLAG_RX_1BUF_ENABLED; + /* Depending on PF configurations, it is possible that the RSS + * maximum might end up larger than the available queues + */ pf->rss_size_max = 0x1 << pf->hw.func_caps.rss_table_entry_width; + pf->rss_size_max = min_t(int, pf->rss_size_max, + pf->hw.func_caps.num_tx_qp); if (pf->hw.func_caps.rss) { pf->flags |= I40E_FLAG_RSS_ENABLED; - pf->rss_size = min_t(int, pf->rss_size_max, - nr_cpus_node(numa_node_id())); + pf->rss_size = min_t(int, pf->rss_size_max, num_online_cpus()); + pf->rss_size = rounddown_pow_of_two(pf->rss_size); } else { pf->rss_size = 1; } - if (pf->hw.func_caps.dcb) - pf->num_tc_qps = I40E_DEFAULT_QUEUES_PER_TC; - else - pf->num_tc_qps = 0; + /* MFP mode enabled */ + if (pf->hw.func_caps.npar_enable || pf->hw.func_caps.mfp_mode_1) { + pf->flags |= I40E_FLAG_MFP_ENABLED; + dev_info(&pf->pdev->dev, "MFP mode Enabled\n"); + } - if (pf->hw.func_caps.fd) { - /* FW/NVM is not yet fixed in this regard */ - if ((pf->hw.func_caps.fd_filters_guaranteed > 0) || - (pf->hw.func_caps.fd_filters_best_effort > 0)) { - pf->flags |= I40E_FLAG_FDIR_ATR_ENABLED; - dev_info(&pf->pdev->dev, - "Flow Director ATR mode Enabled\n"); - pf->flags |= I40E_FLAG_FDIR_ENABLED; + /* FW/NVM is not yet fixed in this regard */ + if ((pf->hw.func_caps.fd_filters_guaranteed > 0) || + (pf->hw.func_caps.fd_filters_best_effort > 0)) { + pf->flags |= I40E_FLAG_FD_ATR_ENABLED; + pf->atr_sample_rate = I40E_DEFAULT_ATR_SAMPLE_RATE; + dev_info(&pf->pdev->dev, + "Flow Director ATR mode Enabled\n"); + if (!(pf->flags & I40E_FLAG_MFP_ENABLED)) { + pf->flags |= I40E_FLAG_FD_SB_ENABLED; dev_info(&pf->pdev->dev, "Flow Director Side Band mode Enabled\n"); - pf->fdir_pf_filter_count = - pf->hw.func_caps.fd_filters_guaranteed; + } else { + dev_info(&pf->pdev->dev, + "Flow Director Side Band mode Disabled in MFP mode\n"); } - } else { - pf->fdir_pf_filter_count = 0; + pf->fdir_pf_filter_count = + pf->hw.func_caps.fd_filters_guaranteed; + pf->hw.fdir_shared_filter_count = + pf->hw.func_caps.fd_filters_best_effort; } if (pf->hw.func_caps.vmdq) { @@ -5634,12 +6279,6 @@ static int i40e_sw_init(struct i40e_pf *pf) pf->num_vmdq_qps = I40E_DEFAULT_QUEUES_PER_VMDQ; } - /* MFP mode enabled */ - if (pf->hw.func_caps.npar_enable || pf->hw.func_caps.mfp_mode_1) { - pf->flags |= I40E_FLAG_MFP_ENABLED; - dev_info(&pf->pdev->dev, "MFP mode Enabled\n"); - } - #ifdef CONFIG_PCI_IOV if (pf->hw.func_caps.num_vfs) { pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; @@ -5647,6 +6286,9 @@ static int i40e_sw_init(struct i40e_pf *pf) pf->num_req_vfs = min_t(int, pf->hw.func_caps.num_vfs, I40E_MAX_VF_COUNT); + dev_info(&pf->pdev->dev, + "Number of VFs being requested for PF[%d] = %d\n", + pf->hw.pf_id, pf->num_req_vfs); } #endif /* CONFIG_PCI_IOV */ pf->eeprom_version = 0xDEAD; @@ -5701,6 +6343,104 @@ static int i40e_set_features(struct net_device *netdev, return 0; } +#ifdef CONFIG_I40E_VXLAN +/** + * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port + * @pf: board private structure + * @port: The UDP port to look up + * + * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found + **/ +static u8 i40e_get_vxlan_port_idx(struct i40e_pf *pf, __be16 port) +{ + u8 i; + + for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) { + if (pf->vxlan_ports[i] == port) + return i; + } + + return i; +} + +/** + * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up + * @netdev: This physical port's netdev + * @sa_family: Socket Family that VXLAN is notifying us about + * @port: New UDP port number that VXLAN started listening to + **/ +static void i40e_add_vxlan_port(struct net_device *netdev, + sa_family_t sa_family, __be16 port) +{ + struct i40e_netdev_priv *np = netdev_priv(netdev); + struct i40e_vsi *vsi = np->vsi; + struct i40e_pf *pf = vsi->back; + u8 next_idx; + u8 idx; + + if (sa_family == AF_INET6) + return; + + idx = i40e_get_vxlan_port_idx(pf, port); + + /* Check if port already exists */ + if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) { + netdev_info(netdev, "Port %d already offloaded\n", ntohs(port)); + return; + } + + /* Now check if there is space to add the new port */ + next_idx = i40e_get_vxlan_port_idx(pf, 0); + + if (next_idx == I40E_MAX_PF_UDP_OFFLOAD_PORTS) { + netdev_info(netdev, "Maximum number of UDP ports reached, not adding port %d\n", + ntohs(port)); + return; + } + + /* New port: add it and mark its index in the bitmap */ + pf->vxlan_ports[next_idx] = port; + pf->pending_vxlan_bitmap |= (1 << next_idx); + + pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC; +} + +/** + * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away + * @netdev: This physical port's netdev + * @sa_family: Socket Family that VXLAN is notifying us about + * @port: UDP port number that VXLAN stopped listening to + **/ +static void i40e_del_vxlan_port(struct net_device *netdev, + sa_family_t sa_family, __be16 port) +{ + struct i40e_netdev_priv *np = netdev_priv(netdev); + struct i40e_vsi *vsi = np->vsi; + struct i40e_pf *pf = vsi->back; + u8 idx; + + if (sa_family == AF_INET6) + return; + + idx = i40e_get_vxlan_port_idx(pf, port); + + /* Check if port already exists */ + if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) { + /* if port exists, set it to 0 (mark for deletion) + * and make it pending + */ + pf->vxlan_ports[idx] = 0; + + pf->pending_vxlan_bitmap |= (1 << idx); + + pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC; + } else { + netdev_warn(netdev, "Port %d was not found, not deleting\n", + ntohs(port)); + } +} + +#endif static const struct net_device_ops i40e_netdev_ops = { .ndo_open = i40e_open, .ndo_stop = i40e_close, @@ -5710,6 +6450,7 @@ static const struct net_device_ops i40e_netdev_ops = { .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = i40e_set_mac, .ndo_change_mtu = i40e_change_mtu, + .ndo_do_ioctl = i40e_ioctl, .ndo_tx_timeout = i40e_tx_timeout, .ndo_vlan_rx_add_vid = i40e_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = i40e_vlan_rx_kill_vid, @@ -5722,6 +6463,10 @@ static const struct net_device_ops i40e_netdev_ops = { .ndo_set_vf_vlan = i40e_ndo_set_vf_port_vlan, .ndo_set_vf_tx_rate = i40e_ndo_set_vf_bw, .ndo_get_vf_config = i40e_ndo_get_vf_config, +#ifdef CONFIG_I40E_VXLAN + .ndo_add_vxlan_port = i40e_add_vxlan_port, + .ndo_del_vxlan_port = i40e_del_vxlan_port, +#endif }; /** @@ -5732,6 +6477,7 @@ static const struct net_device_ops i40e_netdev_ops = { **/ static int i40e_config_netdev(struct i40e_vsi *vsi) { + u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; struct i40e_netdev_priv *np; @@ -5781,6 +6527,7 @@ static int i40e_config_netdev(struct i40e_vsi *vsi) random_ether_addr(mac_addr); i40e_add_filter(vsi, mac_addr, I40E_VLAN_ANY, false, false); } + i40e_add_filter(vsi, brdcast, I40E_VLAN_ANY, false, false); memcpy(netdev->dev_addr, mac_addr, ETH_ALEN); memcpy(netdev->perm_addr, mac_addr, ETH_ALEN); @@ -5814,10 +6561,6 @@ static void i40e_vsi_delete(struct i40e_vsi *vsi) if (vsi == vsi->back->vsi[vsi->back->lan_vsi]) return; - /* there is no HW VSI for FDIR */ - if (vsi->type == I40E_VSI_FDIR) - return; - i40e_aq_delete_element(&vsi->back->hw, vsi->seid, NULL); return; } @@ -5901,12 +6644,12 @@ static int i40e_add_vsi(struct i40e_vsi *vsi) break; case I40E_VSI_FDIR: - /* no queue mapping or actual HW VSI needed */ - vsi->info.valid_sections = 0; - vsi->seid = 0; - vsi->id = 0; + ctxt.pf_num = hw->pf_id; + ctxt.vf_num = 0; + ctxt.uplink_seid = vsi->uplink_seid; + ctxt.connection_type = 0x1; /* regular data port */ + ctxt.flags = I40E_AQ_VSI_TYPE_PF; i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true); - return 0; break; case I40E_VSI_VMDQ2: @@ -6133,6 +6876,69 @@ vector_setup_out: } /** + * i40e_vsi_reinit_setup - return and reallocate resources for a VSI + * @vsi: pointer to the vsi. + * + * This re-allocates a vsi's queue resources. + * + * Returns pointer to the successfully allocated and configured VSI sw struct + * on success, otherwise returns NULL on failure. + **/ +static struct i40e_vsi *i40e_vsi_reinit_setup(struct i40e_vsi *vsi) +{ + struct i40e_pf *pf = vsi->back; + u8 enabled_tc; + int ret; + + i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx); + i40e_vsi_clear_rings(vsi); + + i40e_vsi_free_arrays(vsi, false); + i40e_set_num_rings_in_vsi(vsi); + ret = i40e_vsi_alloc_arrays(vsi, false); + if (ret) + goto err_vsi; + + ret = i40e_get_lump(pf, pf->qp_pile, vsi->alloc_queue_pairs, vsi->idx); + if (ret < 0) { + dev_info(&pf->pdev->dev, "VSI %d get_lump failed %d\n", + vsi->seid, ret); + goto err_vsi; + } + vsi->base_queue = ret; + + /* Update the FW view of the VSI. Force a reset of TC and queue + * layout configurations. + */ + enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc; + pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0; + pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid; + i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc); + + /* assign it some queues */ + ret = i40e_alloc_rings(vsi); + if (ret) + goto err_rings; + + /* map all of the rings to the q_vectors */ + i40e_vsi_map_rings_to_vectors(vsi); + return vsi; + +err_rings: + i40e_vsi_free_q_vectors(vsi); + if (vsi->netdev_registered) { + vsi->netdev_registered = false; + unregister_netdev(vsi->netdev); + free_netdev(vsi->netdev); + vsi->netdev = NULL; + } + i40e_aq_delete_element(&pf->hw, vsi->seid, NULL); +err_vsi: + i40e_vsi_clear(vsi); + return NULL; +} + +/** * i40e_vsi_setup - Set up a VSI by a given type * @pf: board private structure * @type: VSI type @@ -6212,6 +7018,8 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type, if (v_idx < 0) goto err_alloc; vsi = pf->vsi[v_idx]; + if (!vsi) + goto err_alloc; vsi->type = type; vsi->veb_idx = (veb ? veb->idx : I40E_NO_VEB); @@ -6220,7 +7028,8 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type, else if (type == I40E_VSI_SRIOV) vsi->vf_id = param1; /* assign it some queues */ - ret = i40e_get_lump(pf, pf->qp_pile, vsi->alloc_queue_pairs, vsi->idx); + ret = i40e_get_lump(pf, pf->qp_pile, vsi->alloc_queue_pairs, + vsi->idx); if (ret < 0) { dev_info(&pf->pdev->dev, "VSI %d get_lump failed %d\n", vsi->seid, ret); @@ -6246,6 +7055,10 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type, goto err_netdev; vsi->netdev_registered = true; netif_carrier_off(vsi->netdev); +#ifdef CONFIG_I40E_DCB + /* Setup DCB netlink interface */ + i40e_dcbnl_setup(vsi); +#endif /* CONFIG_I40E_DCB */ /* fall through */ case I40E_VSI_FDIR: @@ -6503,12 +7316,14 @@ void i40e_veb_release(struct i40e_veb *veb) **/ static int i40e_add_veb(struct i40e_veb *veb, struct i40e_vsi *vsi) { - bool is_default = (vsi->idx == vsi->back->lan_vsi); + bool is_default = false; + bool is_cloud = false; int ret; /* get a VEB from the hardware */ ret = i40e_aq_add_veb(&veb->pf->hw, veb->uplink_seid, vsi->seid, - veb->enabled_tc, is_default, &veb->seid, NULL); + veb->enabled_tc, is_default, + is_cloud, &veb->seid, NULL); if (ret) { dev_info(&veb->pf->pdev->dev, "couldn't add VEB, err %d, aq_err %d\n", @@ -6773,11 +7588,13 @@ int i40e_fetch_switch_configuration(struct i40e_pf *pf, bool printconfig) /** * i40e_setup_pf_switch - Setup the HW switch on startup or after reset * @pf: board private structure + * @reinit: if the Main VSI needs to re-initialized. * * Returns 0 on success, negative value on failure **/ -static int i40e_setup_pf_switch(struct i40e_pf *pf) +static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit) { + u32 rxfc = 0, txfc = 0, rxfc_reg; int ret; /* find out what's out there already */ @@ -6790,14 +7607,8 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf) } i40e_pf_reset_stats(pf); - /* fdir VSI must happen first to be sure it gets queue 0, but only - * if there is enough room for the fdir VSI - */ - if (pf->num_lan_qps > 1) - i40e_fdir_setup(pf); - /* first time setup */ - if (pf->lan_vsi == I40E_NO_VSI) { + if (pf->lan_vsi == I40E_NO_VSI || reinit) { struct i40e_vsi *vsi = NULL; u16 uplink_seid; @@ -6808,19 +7619,15 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf) uplink_seid = pf->veb[pf->lan_veb]->seid; else uplink_seid = pf->mac_seid; - - vsi = i40e_vsi_setup(pf, I40E_VSI_MAIN, uplink_seid, 0); + if (pf->lan_vsi == I40E_NO_VSI) + vsi = i40e_vsi_setup(pf, I40E_VSI_MAIN, uplink_seid, 0); + else if (reinit) + vsi = i40e_vsi_reinit_setup(pf->vsi[pf->lan_vsi]); if (!vsi) { dev_info(&pf->pdev->dev, "setup of MAIN VSI failed\n"); i40e_fdir_teardown(pf); return -EAGAIN; } - /* accommodate kcompat by copying the main VSI queue count - * into the pf, since this newer code pushes the pf queue - * info down a level into a VSI - */ - pf->num_rx_queues = vsi->alloc_queue_pairs; - pf->num_tx_queues = vsi->alloc_queue_pairs; } else { /* force a reset of TC and queue layout configurations */ u8 enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc; @@ -6830,6 +7637,8 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf) } i40e_vlan_stripping_disable(pf->vsi[pf->lan_vsi]); + i40e_fdir_sb_setup(pf); + /* Setup static PF queue filter control settings */ ret = i40e_setup_pf_filter_control(pf); if (ret) { @@ -6848,37 +7657,68 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf) i40e_aq_get_link_info(&pf->hw, true, NULL, NULL); i40e_link_event(pf); - /* Initialize user-specifics link properties */ + /* Initialize user-specific link properties */ pf->fc_autoneg_status = ((pf->hw.phy.link_info.an_info & I40E_AQ_AN_COMPLETED) ? true : false); - pf->hw.fc.requested_mode = I40E_FC_DEFAULT; - if (pf->hw.phy.link_info.an_info & - (I40E_AQ_LINK_PAUSE_TX | I40E_AQ_LINK_PAUSE_RX)) + /* requested_mode is set in probe or by ethtool */ + if (!pf->fc_autoneg_status) + goto no_autoneg; + + if ((pf->hw.phy.link_info.an_info & I40E_AQ_LINK_PAUSE_TX) && + (pf->hw.phy.link_info.an_info & I40E_AQ_LINK_PAUSE_RX)) pf->hw.fc.current_mode = I40E_FC_FULL; else if (pf->hw.phy.link_info.an_info & I40E_AQ_LINK_PAUSE_TX) pf->hw.fc.current_mode = I40E_FC_TX_PAUSE; else if (pf->hw.phy.link_info.an_info & I40E_AQ_LINK_PAUSE_RX) pf->hw.fc.current_mode = I40E_FC_RX_PAUSE; else - pf->hw.fc.current_mode = I40E_FC_DEFAULT; + pf->hw.fc.current_mode = I40E_FC_NONE; - return ret; -} + /* sync the flow control settings with the auto-neg values */ + switch (pf->hw.fc.current_mode) { + case I40E_FC_FULL: + txfc = 1; + rxfc = 1; + break; + case I40E_FC_TX_PAUSE: + txfc = 1; + rxfc = 0; + break; + case I40E_FC_RX_PAUSE: + txfc = 0; + rxfc = 1; + break; + case I40E_FC_NONE: + case I40E_FC_DEFAULT: + txfc = 0; + rxfc = 0; + break; + case I40E_FC_PFC: + /* TBD */ + break; + /* no default case, we have to handle all possibilities here */ + } -/** - * i40e_set_rss_size - helper to set rss_size - * @pf: board private structure - * @queues_left: how many queues - */ -static u16 i40e_set_rss_size(struct i40e_pf *pf, int queues_left) -{ - int num_tc0; + wr32(&pf->hw, I40E_PRTDCB_FCCFG, txfc << I40E_PRTDCB_FCCFG_TFCE_SHIFT); + + rxfc_reg = rd32(&pf->hw, I40E_PRTDCB_MFLCN) & + ~I40E_PRTDCB_MFLCN_RFCE_MASK; + rxfc_reg |= (rxfc << I40E_PRTDCB_MFLCN_RFCE_SHIFT); + + wr32(&pf->hw, I40E_PRTDCB_MFLCN, rxfc_reg); - num_tc0 = min_t(int, queues_left, pf->rss_size_max); - num_tc0 = min_t(int, num_tc0, nr_cpus_node(numa_node_id())); - num_tc0 = rounddown_pow_of_two(num_tc0); + goto fc_complete; - return num_tc0; +no_autoneg: + /* disable L2 flow control, user can turn it on if they wish */ + wr32(&pf->hw, I40E_PRTDCB_FCCFG, 0); + wr32(&pf->hw, I40E_PRTDCB_MFLCN, rd32(&pf->hw, I40E_PRTDCB_MFLCN) & + ~I40E_PRTDCB_MFLCN_RFCE_MASK); + +fc_complete: + i40e_ptp_init(pf); + + return ret; } /** @@ -6887,12 +7727,9 @@ static u16 i40e_set_rss_size(struct i40e_pf *pf, int queues_left) **/ static void i40e_determine_queue_usage(struct i40e_pf *pf) { - int accum_tc_size; int queues_left; pf->num_lan_qps = 0; - pf->num_tc_qps = rounddown_pow_of_two(pf->num_tc_qps); - accum_tc_size = (I40E_MAX_TRAFFIC_CLASS - 1) * pf->num_tc_qps; /* Find the max queues to be put into basic use. We'll always be * using TC0, whether or not DCB is running, and TC0 will get the @@ -6900,99 +7737,45 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf) */ queues_left = pf->hw.func_caps.num_tx_qp; - if (!((pf->flags & I40E_FLAG_MSIX_ENABLED) && - (pf->flags & I40E_FLAG_MQ_ENABLED)) || - !(pf->flags & (I40E_FLAG_RSS_ENABLED | - I40E_FLAG_FDIR_ENABLED | I40E_FLAG_DCB_ENABLED)) || - (queues_left == 1)) { - + if ((queues_left == 1) || + !(pf->flags & I40E_FLAG_MSIX_ENABLED) || + !(pf->flags & (I40E_FLAG_RSS_ENABLED | I40E_FLAG_FD_SB_ENABLED | + I40E_FLAG_DCB_ENABLED))) { /* one qp for PF, no queues for anything else */ queues_left = 0; pf->rss_size = pf->num_lan_qps = 1; /* make sure all the fancies are disabled */ - pf->flags &= ~(I40E_FLAG_RSS_ENABLED | - I40E_FLAG_MQ_ENABLED | - I40E_FLAG_FDIR_ENABLED | - I40E_FLAG_FDIR_ATR_ENABLED | - I40E_FLAG_DCB_ENABLED | - I40E_FLAG_SRIOV_ENABLED | - I40E_FLAG_VMDQ_ENABLED); - - } else if (pf->flags & I40E_FLAG_RSS_ENABLED && - !(pf->flags & I40E_FLAG_FDIR_ENABLED) && - !(pf->flags & I40E_FLAG_DCB_ENABLED)) { - - pf->rss_size = i40e_set_rss_size(pf, queues_left); - - queues_left -= pf->rss_size; - pf->num_lan_qps = pf->rss_size; - - } else if (pf->flags & I40E_FLAG_RSS_ENABLED && - !(pf->flags & I40E_FLAG_FDIR_ENABLED) && - (pf->flags & I40E_FLAG_DCB_ENABLED)) { - - /* save num_tc_qps queues for TCs 1 thru 7 and the rest - * are set up for RSS in TC0 - */ - queues_left -= accum_tc_size; - - pf->rss_size = i40e_set_rss_size(pf, queues_left); - - queues_left -= pf->rss_size; - if (queues_left < 0) { - dev_info(&pf->pdev->dev, "not enough queues for DCB\n"); - return; - } - - pf->num_lan_qps = pf->rss_size + accum_tc_size; - - } else if (pf->flags & I40E_FLAG_RSS_ENABLED && - (pf->flags & I40E_FLAG_FDIR_ENABLED) && - !(pf->flags & I40E_FLAG_DCB_ENABLED)) { - - queues_left -= 1; /* save 1 queue for FD */ - - pf->rss_size = i40e_set_rss_size(pf, queues_left); - - queues_left -= pf->rss_size; - if (queues_left < 0) { - dev_info(&pf->pdev->dev, "not enough queues for Flow Director\n"); - return; + pf->flags &= ~(I40E_FLAG_RSS_ENABLED | + I40E_FLAG_FD_SB_ENABLED | + I40E_FLAG_FD_ATR_ENABLED | + I40E_FLAG_DCB_ENABLED | + I40E_FLAG_SRIOV_ENABLED | + I40E_FLAG_VMDQ_ENABLED); + } else { + /* Not enough queues for all TCs */ + if ((pf->flags & I40E_FLAG_DCB_ENABLED) && + (queues_left < I40E_MAX_TRAFFIC_CLASS)) { + pf->flags &= ~I40E_FLAG_DCB_ENABLED; + dev_info(&pf->pdev->dev, "not enough queues for DCB. DCB is disabled.\n"); } + pf->num_lan_qps = pf->rss_size_max; + queues_left -= pf->num_lan_qps; + } - pf->num_lan_qps = pf->rss_size; - - } else if (pf->flags & I40E_FLAG_RSS_ENABLED && - (pf->flags & I40E_FLAG_FDIR_ENABLED) && - (pf->flags & I40E_FLAG_DCB_ENABLED)) { - - /* save 1 queue for TCs 1 thru 7, - * 1 queue for flow director, - * and the rest are set up for RSS in TC0 - */ - queues_left -= 1; - queues_left -= accum_tc_size; - - pf->rss_size = i40e_set_rss_size(pf, queues_left); - queues_left -= pf->rss_size; - if (queues_left < 0) { - dev_info(&pf->pdev->dev, "not enough queues for DCB and Flow Director\n"); - return; + if (pf->flags & I40E_FLAG_FD_SB_ENABLED) { + if (queues_left > 1) { + queues_left -= 1; /* save 1 queue for FD */ + } else { + pf->flags &= ~I40E_FLAG_FD_SB_ENABLED; + dev_info(&pf->pdev->dev, "not enough queues for Flow Director. Flow Director feature is disabled\n"); } - - pf->num_lan_qps = pf->rss_size + accum_tc_size; - - } else { - dev_info(&pf->pdev->dev, - "Invalid configuration, flags=0x%08llx\n", pf->flags); - return; } if ((pf->flags & I40E_FLAG_SRIOV_ENABLED) && pf->num_vf_qps && pf->num_req_vfs && queues_left) { - pf->num_req_vfs = min_t(int, pf->num_req_vfs, (queues_left / - pf->num_vf_qps)); + pf->num_req_vfs = min_t(int, pf->num_req_vfs, + (queues_left / pf->num_vf_qps)); queues_left -= (pf->num_req_vfs * pf->num_vf_qps); } @@ -7003,6 +7786,7 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf) queues_left -= (pf->num_vmdq_vsis * pf->num_vmdq_qps); } + pf->queues_left = queues_left; return; } @@ -7024,7 +7808,7 @@ static int i40e_setup_pf_filter_control(struct i40e_pf *pf) settings->hash_lut_size = I40E_HASH_LUT_SIZE_128; /* Flow Director is enabled */ - if (pf->flags & (I40E_FLAG_FDIR_ENABLED | I40E_FLAG_FDIR_ATR_ENABLED)) + if (pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)) settings->enable_fdir = true; /* Ethtype and MACVLAN filters enabled for PF */ @@ -7053,6 +7837,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct i40e_driver_version dv; struct i40e_pf *pf; struct i40e_hw *hw; + static u16 pfs_found; + u16 link_status; int err = 0; u32 len; @@ -7118,6 +7904,18 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) hw->subsystem_device_id = pdev->subsystem_device; hw->bus.device = PCI_SLOT(pdev->devfn); hw->bus.func = PCI_FUNC(pdev->devfn); + pf->instance = pfs_found; + + /* do a special CORER for clearing PXE mode once at init */ + if (hw->revision_id == 0 && + (rd32(hw, I40E_GLLAN_RCTL_0) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK)) { + wr32(hw, I40E_GLGEN_RTRIG, I40E_GLGEN_RTRIG_CORER_MASK); + i40e_flush(hw); + msleep(200); + pf->corer_count++; + + i40e_clear_pxe_mode(hw); + } /* Reset here to make sure all is clean and to define PF 'n' */ err = i40e_pf_reset(hw); @@ -7142,8 +7940,18 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_pf_reset; } + /* set up a default setting for link flow control */ + pf->hw.fc.requested_mode = I40E_FC_NONE; + err = i40e_init_adminq(hw); dev_info(&pdev->dev, "%s\n", i40e_fw_version_str(hw)); + if (((hw->nvm.version & I40E_NVM_VERSION_HI_MASK) + >> I40E_NVM_VERSION_HI_SHIFT) != I40E_CURRENT_NVM_VERSION_HI) { + dev_info(&pdev->dev, + "warning: NVM version not supported, supported version: %02x.%02x\n", + I40E_CURRENT_NVM_VERSION_HI, + I40E_CURRENT_NVM_VERSION_LO); + } if (err) { dev_info(&pdev->dev, "init_adminq failed: %d expecting API %02x.%02x\n", @@ -7152,6 +7960,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_pf_reset; } + i40e_clear_pxe_mode(hw); err = i40e_get_capabilities(pf); if (err) goto err_adminq_setup; @@ -7178,7 +7987,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } i40e_get_mac_addr(hw, hw->mac.addr); - if (i40e_validate_mac_addr(hw->mac.addr)) { + if (!is_valid_ether_addr(hw->mac.addr)) { dev_info(&pdev->dev, "invalid MAC address %pM\n", hw->mac.addr); err = -EIO; goto err_mac_addr; @@ -7188,6 +7997,14 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, pf); pci_save_state(pdev); +#ifdef CONFIG_I40E_DCB + err = i40e_init_pf_dcb(pf); + if (err) { + dev_info(&pdev->dev, "init_pf_dcb failed: %d\n", err); + pf->flags &= ~I40E_FLAG_DCB_ENABLED; + goto err_init_dcb; + } +#endif /* CONFIG_I40E_DCB */ /* set up periodic task facility */ setup_timer(&pf->service_timer, i40e_service_timer, (unsigned long)pf); @@ -7198,6 +8015,10 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pf->flags |= I40E_FLAG_NEED_LINK_UPDATE; pf->link_check_timeout = jiffies; + /* WoL defaults to disabled */ + pf->wol_en = false; + device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); + /* set up the main switch operations */ i40e_determine_queue_usage(pf); i40e_init_interrupt_scheme(pf); @@ -7212,7 +8033,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_switch_setup; } - err = i40e_setup_pf_switch(pf); + err = i40e_setup_pf_switch(pf, false); if (err) { dev_info(&pdev->dev, "setup_pf_switch failed: %d\n", err); goto err_vsis; @@ -7250,6 +8071,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) i40e_flush(hw); } + pfs_found++; + i40e_dbg_pf_init(pf); /* tell the firmware that we're starting */ @@ -7263,15 +8086,41 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) mod_timer(&pf->service_timer, round_jiffies(jiffies + pf->service_timer_period)); + /* Get the negotiated link width and speed from PCI config space */ + pcie_capability_read_word(pf->pdev, PCI_EXP_LNKSTA, &link_status); + + i40e_set_pci_config_data(hw, link_status); + + dev_info(&pdev->dev, "PCI Express: %s %s\n", + (hw->bus.speed == i40e_bus_speed_8000 ? "Speed 8.0GT/s" : + hw->bus.speed == i40e_bus_speed_5000 ? "Speed 5.0GT/s" : + hw->bus.speed == i40e_bus_speed_2500 ? "Speed 2.5GT/s" : + "Unknown"), + (hw->bus.width == i40e_bus_width_pcie_x8 ? "Width x8" : + hw->bus.width == i40e_bus_width_pcie_x4 ? "Width x4" : + hw->bus.width == i40e_bus_width_pcie_x2 ? "Width x2" : + hw->bus.width == i40e_bus_width_pcie_x1 ? "Width x1" : + "Unknown")); + + if (hw->bus.width < i40e_bus_width_pcie_x8 || + hw->bus.speed < i40e_bus_speed_8000) { + dev_warn(&pdev->dev, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n"); + dev_warn(&pdev->dev, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n"); + } + return 0; /* Unwind what we've done if something failed in the setup */ err_vsis: set_bit(__I40E_DOWN, &pf->state); -err_switch_setup: i40e_clear_interrupt_scheme(pf); kfree(pf->vsi); +err_switch_setup: + i40e_reset_interrupt_capability(pf); del_timer_sync(&pf->service_timer); +#ifdef CONFIG_I40E_DCB +err_init_dcb: +#endif /* CONFIG_I40E_DCB */ err_mac_addr: err_configure_lan_hmc: (void)i40e_shutdown_lan_hmc(hw); @@ -7313,6 +8162,8 @@ static void i40e_remove(struct pci_dev *pdev) i40e_dbg_pf_exit(pf); + i40e_ptp_stop(pf); + if (pf->flags & I40E_FLAG_SRIOV_ENABLED) { i40e_free_vfs(pf); pf->flags &= ~I40E_FLAG_SRIOV_ENABLED; @@ -7356,7 +8207,6 @@ static void i40e_remove(struct pci_dev *pdev) "Failed to destroy the HMC resources: %d\n", ret_code); /* shutdown the adminq */ - i40e_aq_queue_shutdown(&pf->hw, true); ret_code = i40e_shutdown_adminq(&pf->hw); if (ret_code) dev_warn(&pdev->dev, @@ -7413,7 +8263,11 @@ static pci_ers_result_t i40e_pci_error_detected(struct pci_dev *pdev, dev_info(&pdev->dev, "%s: error %d\n", __func__, error); /* shutdown all operations */ - i40e_pf_quiesce_all_vsi(pf); + if (!test_bit(__I40E_SUSPENDED, &pf->state)) { + rtnl_lock(); + i40e_prep_for_reset(pf); + rtnl_unlock(); + } /* Request a slot reset */ return PCI_ERS_RESULT_NEED_RESET; @@ -7476,9 +8330,103 @@ static void i40e_pci_error_resume(struct pci_dev *pdev) struct i40e_pf *pf = pci_get_drvdata(pdev); dev_info(&pdev->dev, "%s\n", __func__); + if (test_bit(__I40E_SUSPENDED, &pf->state)) + return; + + rtnl_lock(); i40e_handle_reset_warning(pf); + rtnl_lock(); } +/** + * i40e_shutdown - PCI callback for shutting down + * @pdev: PCI device information struct + **/ +static void i40e_shutdown(struct pci_dev *pdev) +{ + struct i40e_pf *pf = pci_get_drvdata(pdev); + struct i40e_hw *hw = &pf->hw; + + set_bit(__I40E_SUSPENDED, &pf->state); + set_bit(__I40E_DOWN, &pf->state); + rtnl_lock(); + i40e_prep_for_reset(pf); + rtnl_unlock(); + + wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0)); + wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0)); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, pf->wol_en); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +#ifdef CONFIG_PM +/** + * i40e_suspend - PCI callback for moving to D3 + * @pdev: PCI device information struct + **/ +static int i40e_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct i40e_pf *pf = pci_get_drvdata(pdev); + struct i40e_hw *hw = &pf->hw; + + set_bit(__I40E_SUSPENDED, &pf->state); + set_bit(__I40E_DOWN, &pf->state); + rtnl_lock(); + i40e_prep_for_reset(pf); + rtnl_unlock(); + + wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0)); + wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0)); + + pci_wake_from_d3(pdev, pf->wol_en); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} + +/** + * i40e_resume - PCI callback for waking up from D3 + * @pdev: PCI device information struct + **/ +static int i40e_resume(struct pci_dev *pdev) +{ + struct i40e_pf *pf = pci_get_drvdata(pdev); + u32 err; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + /* pci_restore_state() clears dev->state_saves, so + * call pci_save_state() again to restore it. + */ + pci_save_state(pdev); + + err = pci_enable_device_mem(pdev); + if (err) { + dev_err(&pdev->dev, + "%s: Cannot enable PCI device from suspend\n", + __func__); + return err; + } + pci_set_master(pdev); + + /* no wakeup events while running */ + pci_wake_from_d3(pdev, false); + + /* handling the reset will rebuild the device state */ + if (test_and_clear_bit(__I40E_SUSPENDED, &pf->state)) { + clear_bit(__I40E_DOWN, &pf->state); + rtnl_lock(); + i40e_reset_and_rebuild(pf, false); + rtnl_unlock(); + } + + return 0; +} + +#endif static const struct pci_error_handlers i40e_err_handler = { .error_detected = i40e_pci_error_detected, .slot_reset = i40e_pci_error_slot_reset, @@ -7490,6 +8438,11 @@ static struct pci_driver i40e_driver = { .id_table = i40e_pci_tbl, .probe = i40e_probe, .remove = i40e_remove, +#ifdef CONFIG_PM + .suspend = i40e_suspend, + .resume = i40e_resume, +#endif + .shutdown = i40e_shutdown, .err_handler = &i40e_err_handler, .sriov_configure = i40e_pci_sriov_configure, }; |