diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40evf/i40evf_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40evf_main.c | 167 |
1 files changed, 127 insertions, 40 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index 1503cad918d8..2a6063a3a14d 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -49,6 +49,7 @@ static const char i40evf_copyright[] = */ static const struct pci_device_id i40evf_pci_tbl[] = { {PCI_VDEVICE(INTEL, I40E_DEV_ID_VF), 0}, + {PCI_VDEVICE(INTEL, I40E_DEV_ID_X722_VF), 0}, /* required last entry */ {0, } }; @@ -1172,6 +1173,113 @@ out: } /** + * i40e_configure_rss_aq - Prepare for RSS using AQ commands + * @vsi: vsi structure + * @seed: RSS hash seed + **/ +static void i40evf_configure_rss_aq(struct i40e_vsi *vsi, const u8 *seed) +{ + struct i40e_aqc_get_set_rss_key_data rss_key; + struct i40evf_adapter *adapter = vsi->back; + struct i40e_hw *hw = &adapter->hw; + int ret = 0, i; + u8 *rss_lut; + + if (!vsi->id) + return; + + if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { + /* bail because we already have a command pending */ + dev_err(&adapter->pdev->dev, "Cannot confiure RSS, command %d pending\n", + adapter->current_op); + return; + } + + memset(&rss_key, 0, sizeof(rss_key)); + memcpy(&rss_key, seed, sizeof(rss_key)); + + rss_lut = kzalloc(((I40E_VFQF_HLUT_MAX_INDEX + 1) * 4), GFP_KERNEL); + if (!rss_lut) + return; + + /* Populate the LUT with max no. PF queues in round robin fashion */ + for (i = 0; i <= (I40E_VFQF_HLUT_MAX_INDEX * 4); i++) + rss_lut[i] = i % adapter->num_active_queues; + + ret = i40evf_aq_set_rss_key(hw, vsi->id, &rss_key); + if (ret) { + dev_err(&adapter->pdev->dev, + "Cannot set RSS key, err %s aq_err %s\n", + i40evf_stat_str(hw, ret), + i40evf_aq_str(hw, hw->aq.asq_last_status)); + return; + } + + ret = i40evf_aq_set_rss_lut(hw, vsi->id, false, rss_lut, + (I40E_VFQF_HLUT_MAX_INDEX + 1) * 4); + if (ret) + dev_err(&adapter->pdev->dev, + "Cannot set RSS lut, err %s aq_err %s\n", + i40evf_stat_str(hw, ret), + i40evf_aq_str(hw, hw->aq.asq_last_status)); +} + +/** + * i40e_configure_rss_reg - Prepare for RSS if used + * @adapter: board private structure + * @seed: RSS hash seed + **/ +static void i40evf_configure_rss_reg(struct i40evf_adapter *adapter, + const u8 *seed) +{ + struct i40e_hw *hw = &adapter->hw; + u32 *seed_dw = (u32 *)seed; + u32 cqueue = 0; + u32 lut = 0; + int i, j; + + /* Fill out hash function seed */ + for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++) + wr32(hw, I40E_VFQF_HKEY(i), seed_dw[i]); + + /* Populate the LUT with max no. PF queues in round robin fashion */ + for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++) { + lut = 0; + for (j = 0; j < 4; j++) { + if (cqueue == adapter->num_active_queues) + cqueue = 0; + lut |= ((cqueue) << (8 * j)); + cqueue++; + } + wr32(hw, I40E_VFQF_HLUT(i), lut); + } + i40e_flush(hw); +} + +/** + * i40evf_configure_rss - Prepare for RSS + * @adapter: board private structure + **/ +static void i40evf_configure_rss(struct i40evf_adapter *adapter) +{ + struct i40e_hw *hw = &adapter->hw; + u8 seed[I40EVF_HKEY_ARRAY_SIZE]; + u64 hena; + + netdev_rss_key_fill((void *)seed, I40EVF_HKEY_ARRAY_SIZE); + + /* Enable PCTYPES for RSS, TCP/UDP with IPv4/IPv6 */ + hena = I40E_DEFAULT_RSS_HENA; + wr32(hw, I40E_VFQF_HENA(0), (u32)hena); + wr32(hw, I40E_VFQF_HENA(1), (u32)(hena >> 32)); + + if (RSS_AQ(adapter)) + i40evf_configure_rss_aq(&adapter->vsi, seed); + else + i40evf_configure_rss_reg(adapter, seed); +} + +/** * i40evf_alloc_q_vectors - Allocate memory for interrupt vectors * @adapter: board private structure to initialize * @@ -1416,6 +1524,16 @@ static void i40evf_watchdog_task(struct work_struct *work) goto watchdog_done; } + if (adapter->aq_required & I40EVF_FLAG_AQ_CONFIGURE_RSS) { + /* This message goes straight to the firmware, not the + * PF, so we don't have to set current_op as we will + * not get a response through the ARQ. + */ + i40evf_configure_rss(adapter); + adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_RSS; + goto watchdog_done; + } + if (adapter->state == __I40EVF_RUNNING) i40evf_request_stats(adapter); watchdog_done: @@ -1438,45 +1556,6 @@ restart_watchdog: schedule_work(&adapter->adminq_task); } -/** - * i40evf_configure_rss - Prepare for RSS - * @adapter: board private structure - **/ -static void i40evf_configure_rss(struct i40evf_adapter *adapter) -{ - u32 rss_key[I40E_VFQF_HKEY_MAX_INDEX + 1]; - struct i40e_hw *hw = &adapter->hw; - u32 cqueue = 0; - u32 lut = 0; - int i, j; - u64 hena; - - /* Hash type is configured by the PF - we just supply the key */ - netdev_rss_key_fill(rss_key, sizeof(rss_key)); - - /* Fill out hash function seed */ - for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++) - wr32(hw, I40E_VFQF_HKEY(i), rss_key[i]); - - /* Enable PCTYPES for RSS, TCP/UDP with IPv4/IPv6 */ - hena = I40E_DEFAULT_RSS_HENA; - wr32(hw, I40E_VFQF_HENA(0), (u32)hena); - wr32(hw, I40E_VFQF_HENA(1), (u32)(hena >> 32)); - - /* Populate the LUT with max no. of queues in round robin fashion */ - for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++) { - lut = 0; - for (j = 0; j < 4; j++) { - if (cqueue == adapter->num_active_queues) - cqueue = 0; - lut |= ((cqueue) << (8 * j)); - cqueue++; - } - wr32(hw, I40E_VFQF_HLUT(i), lut); - } - i40e_flush(hw); -} - #define I40EVF_RESET_WAIT_MS 10 #define I40EVF_RESET_WAIT_COUNT 500 /** @@ -2186,7 +2265,8 @@ static void i40evf_init_task(struct work_struct *work) if (err) goto err_sw_init; i40evf_map_rings_to_vectors(adapter); - i40evf_configure_rss(adapter); + if (!RSS_AQ(adapter)) + i40evf_configure_rss(adapter); err = i40evf_request_misc_irq(adapter); if (err) goto err_sw_init; @@ -2211,6 +2291,13 @@ static void i40evf_init_task(struct work_struct *work) adapter->state = __I40EVF_DOWN; set_bit(__I40E_DOWN, &adapter->vsi.state); i40evf_misc_irq_enable(adapter); + + if (RSS_AQ(adapter)) { + adapter->aq_required |= I40EVF_FLAG_AQ_CONFIGURE_RSS; + mod_timer_pending(&adapter->watchdog_timer, jiffies + 1); + } else { + i40evf_configure_rss(adapter); + } return; restart: schedule_delayed_work(&adapter->init_task, |
