net/hns3: support oerrors stats in PF
[dpdk.git] / drivers / net / hns3 / hns3_cmd.c
index cbb0988..03f8048 100644 (file)
@@ -2,22 +2,7 @@
  * Copyright(c) 2018-2019 Hisilicon Limited.
  */
 
-#include <errno.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/queue.h>
-#include <inttypes.h>
-#include <unistd.h>
-#include <rte_bus_pci.h>
-#include <rte_common.h>
-#include <rte_cycles.h>
-#include <rte_dev.h>
-#include <rte_eal.h>
-#include <rte_ether.h>
-#include <rte_ethdev_driver.h>
-#include <rte_ethdev_pci.h>
+#include <ethdev_pci.h>
 #include <rte_io.h>
 
 #include "hns3_ethdev.h"
@@ -213,12 +198,12 @@ hns3_cmd_csq_clean(struct hns3_hw *hw)
        int clean;
 
        head = hns3_read_dev(hw, HNS3_CMDQ_TX_HEAD_REG);
-
        if (!is_valid_csq_clean_head(csq, head)) {
                hns3_err(hw, "wrong cmd head (%u, %u-%u)", head,
                            csq->next_to_use, csq->next_to_clean);
                if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
-                       rte_atomic16_set(&hw->reset.disable_cmd, 1);
+                       __atomic_store_n(&hw->reset.disable_cmd, 1,
+                                        __ATOMIC_RELAXED);
                        hns3_schedule_delayed_reset(HNS3_DEV_HW_TO_ADAPTER(hw));
                }
 
@@ -263,34 +248,32 @@ hns3_is_special_opcode(uint16_t opcode)
 static int
 hns3_cmd_convert_err_code(uint16_t desc_ret)
 {
-       switch (desc_ret) {
-       case HNS3_CMD_EXEC_SUCCESS:
-               return 0;
-       case HNS3_CMD_NO_AUTH:
-               return -EPERM;
-       case HNS3_CMD_NOT_SUPPORTED:
-               return -EOPNOTSUPP;
-       case HNS3_CMD_QUEUE_FULL:
-               return -EXFULL;
-       case HNS3_CMD_NEXT_ERR:
-               return -ENOSR;
-       case HNS3_CMD_UNEXE_ERR:
-               return -ENOTBLK;
-       case HNS3_CMD_PARA_ERR:
-               return -EINVAL;
-       case HNS3_CMD_RESULT_ERR:
-               return -ERANGE;
-       case HNS3_CMD_TIMEOUT:
-               return -ETIME;
-       case HNS3_CMD_HILINK_ERR:
-               return -ENOLINK;
-       case HNS3_CMD_QUEUE_ILLEGAL:
-               return -ENXIO;
-       case HNS3_CMD_INVALID:
-               return -EBADR;
-       default:
-               return -EREMOTEIO;
-       }
+       static const struct {
+               uint16_t imp_errcode;
+               int linux_errcode;
+       } hns3_cmdq_status[] = {
+               {HNS3_CMD_EXEC_SUCCESS, 0},
+               {HNS3_CMD_NO_AUTH, -EPERM},
+               {HNS3_CMD_NOT_SUPPORTED, -EOPNOTSUPP},
+               {HNS3_CMD_QUEUE_FULL, -EXFULL},
+               {HNS3_CMD_NEXT_ERR, -ENOSR},
+               {HNS3_CMD_UNEXE_ERR, -ENOTBLK},
+               {HNS3_CMD_PARA_ERR, -EINVAL},
+               {HNS3_CMD_RESULT_ERR, -ERANGE},
+               {HNS3_CMD_TIMEOUT, -ETIME},
+               {HNS3_CMD_HILINK_ERR, -ENOLINK},
+               {HNS3_CMD_QUEUE_ILLEGAL, -ENXIO},
+               {HNS3_CMD_INVALID, -EBADR},
+               {HNS3_CMD_ROH_CHECK_FAIL, -EINVAL}
+       };
+
+       uint32_t i;
+
+       for (i = 0; i < ARRAY_SIZE(hns3_cmdq_status); i++)
+               if (hns3_cmdq_status[i].imp_errcode == desc_ret)
+                       return hns3_cmdq_status[i].linux_errcode;
+
+       return -EREMOTEIO;
 }
 
 static int
@@ -329,7 +312,7 @@ static int hns3_cmd_poll_reply(struct hns3_hw *hw)
                if (hns3_cmd_csq_done(hw))
                        return 0;
 
-               if (rte_atomic16_read(&hw->reset.disable_cmd)) {
+               if (__atomic_load_n(&hw->reset.disable_cmd, __ATOMIC_RELAXED)) {
                        hns3_err(hw,
                                 "Don't wait for reply because of disable_cmd");
                        return -EBUSY;
@@ -376,7 +359,7 @@ hns3_cmd_send(struct hns3_hw *hw, struct hns3_cmd_desc *desc, int num)
        int retval;
        uint32_t ntc;
 
-       if (rte_atomic16_read(&hw->reset.disable_cmd))
+       if (__atomic_load_n(&hw->reset.disable_cmd, __ATOMIC_RELAXED))
                return -EBUSY;
 
        rte_spinlock_lock(&hw->cmq.csq.lock);
@@ -426,8 +409,47 @@ hns3_cmd_send(struct hns3_hw *hw, struct hns3_cmd_desc *desc, int num)
        return retval;
 }
 
+static void
+hns3_parse_capability(struct hns3_hw *hw,
+                     struct hns3_query_version_cmd *cmd)
+{
+       uint32_t caps = rte_le_to_cpu_32(cmd->caps[0]);
+
+       if (hns3_get_bit(caps, HNS3_CAPS_UDP_GSO_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_UDP_GSO_B, 1);
+       if (hns3_get_bit(caps, HNS3_CAPS_FD_QUEUE_REGION_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_FD_QUEUE_REGION_B,
+                            1);
+       if (hns3_get_bit(caps, HNS3_CAPS_PTP_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_PTP_B, 1);
+       if (hns3_get_bit(caps, HNS3_CAPS_TX_PUSH_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_TX_PUSH_B, 1);
+       if (hns3_get_bit(caps, HNS3_CAPS_PHY_IMP_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_COPPER_B, 1);
+       if (hns3_get_bit(caps, HNS3_CAPS_TQP_TXRX_INDEP_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_INDEP_TXRX_B, 1);
+       if (hns3_get_bit(caps, HNS3_CAPS_STASH_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_STASH_B, 1);
+       if (hns3_get_bit(caps, HNS3_CAPS_RXD_ADV_LAYOUT_B))
+               hns3_set_bit(hw->capability, HNS3_DEV_SUPPORT_RXD_ADV_LAYOUT_B,
+                            1);
+       if (hns3_get_bit(caps, HNS3_CAPS_UDP_TUNNEL_CSUM_B))
+               hns3_set_bit(hw->capability,
+                               HNS3_DEV_SUPPORT_OUTER_UDP_CKSUM_B, 1);
+}
+
+static uint32_t
+hns3_build_api_caps(void)
+{
+       uint32_t api_caps = 0;
+
+       hns3_set_bit(api_caps, HNS3_API_CAP_FLEX_RSS_TBL_B, 1);
+
+       return rte_cpu_to_le_32(api_caps);
+}
+
 static enum hns3_cmd_status
-hns3_cmd_query_firmware_version(struct hns3_hw *hw, uint32_t *version)
+hns3_cmd_query_firmware_version_and_capability(struct hns3_hw *hw)
 {
        struct hns3_query_version_cmd *resp;
        struct hns3_cmd_desc desc;
@@ -435,13 +457,17 @@ hns3_cmd_query_firmware_version(struct hns3_hw *hw, uint32_t *version)
 
        hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_QUERY_FW_VER, 1);
        resp = (struct hns3_query_version_cmd *)desc.data;
+       resp->api_caps = hns3_build_api_caps();
 
        /* Initialize the cmd function */
        ret = hns3_cmd_send(hw, &desc, 1);
-       if (ret == 0)
-               *version = rte_le_to_cpu_32(resp->firmware);
+       if (ret)
+               return ret;
 
-       return ret;
+       hw->fw_version = rte_le_to_cpu_32(resp->firmware);
+       hns3_parse_capability(hw, resp);
+
+       return 0;
 }
 
 int
@@ -517,15 +543,15 @@ hns3_cmd_init(struct hns3_hw *hw)
                ret = -EBUSY;
                goto err_cmd_init;
        }
-       rte_atomic16_clear(&hw->reset.disable_cmd);
+       __atomic_store_n(&hw->reset.disable_cmd, 0, __ATOMIC_RELAXED);
 
-       ret = hns3_cmd_query_firmware_version(hw, &version);
+       ret = hns3_cmd_query_firmware_version_and_capability(hw);
        if (ret) {
                PMD_INIT_LOG(ERR, "firmware version query failed %d", ret);
                goto err_cmd_init;
        }
 
-       hw->fw_version = version;
+       version = hw->fw_version;
        PMD_INIT_LOG(INFO, "The firmware version is %lu.%lu.%lu.%lu",
                     hns3_get_field(version, HNS3_FW_VERSION_BYTE3_M,
                                    HNS3_FW_VERSION_BYTE3_S),
@@ -539,7 +565,7 @@ hns3_cmd_init(struct hns3_hw *hw)
        return 0;
 
 err_cmd_init:
-       rte_atomic16_set(&hw->reset.disable_cmd, 1);
+       __atomic_store_n(&hw->reset.disable_cmd, 1, __ATOMIC_RELAXED);
        return ret;
 }
 
@@ -563,9 +589,21 @@ hns3_cmd_destroy_queue(struct hns3_hw *hw)
 void
 hns3_cmd_uninit(struct hns3_hw *hw)
 {
+       __atomic_store_n(&hw->reset.disable_cmd, 1, __ATOMIC_RELAXED);
+
+       /*
+        * A delay is added to ensure that the register cleanup operations
+        * will not be performed concurrently with the firmware command and
+        * ensure that all the reserved commands are executed.
+        * Concurrency may occur in two scenarios: asynchronous command and
+        * timeout command. If the command fails to be executed due to busy
+        * scheduling, the command will be processed in the next scheduling
+        * of the firmware.
+        */
+       rte_delay_ms(HNS3_CMDQ_CLEAR_WAIT_TIME);
+
        rte_spinlock_lock(&hw->cmq.csq.lock);
        rte_spinlock_lock(&hw->cmq.crq.lock);
-       rte_atomic16_set(&hw->reset.disable_cmd, 1);
        hns3_cmd_clear_regs(hw);
        rte_spinlock_unlock(&hw->cmq.crq.lock);
        rte_spinlock_unlock(&hw->cmq.csq.lock);