diff options
-rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_com.c | 96 | ||||
-rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_com.h | 9 | ||||
-rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_ethtool.c | 46 | ||||
-rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.c | 6 | ||||
-rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.h | 2 |
5 files changed, 115 insertions, 44 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c index ea62604fdf8c..1fb58f9ad80b 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_com.c @@ -200,6 +200,11 @@ static void comp_ctxt_release(struct ena_com_admin_queue *queue, static struct ena_comp_ctx *get_comp_ctxt(struct ena_com_admin_queue *queue, u16 command_id, bool capture) { + if (unlikely(!queue->comp_ctx)) { + pr_err("Completion context is NULL\n"); + return NULL; + } + if (unlikely(command_id >= queue->q_depth)) { pr_err("command id is larger than the queue size. cmd_id: %u queue size %d\n", command_id, queue->q_depth); @@ -1041,9 +1046,41 @@ static int ena_com_get_feature(struct ena_com_dev *ena_dev, feature_ver); } +int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev) +{ + return ena_dev->rss.hash_func; +} + +static void ena_com_hash_key_fill_default_key(struct ena_com_dev *ena_dev) +{ + struct ena_admin_feature_rss_flow_hash_control *hash_key = + (ena_dev->rss).hash_key; + + netdev_rss_key_fill(&hash_key->key, sizeof(hash_key->key)); + /* The key is stored in the device in u32 array + * as well as the API requires the key to be passed in this + * format. Thus the size of our array should be divided by 4 + */ + hash_key->keys_num = sizeof(hash_key->key) / sizeof(u32); +} + static int ena_com_hash_key_allocate(struct ena_com_dev *ena_dev) { struct ena_rss *rss = &ena_dev->rss; + struct ena_admin_feature_rss_flow_hash_control *hash_key; + struct ena_admin_get_feat_resp get_resp; + int rc; + + hash_key = (ena_dev->rss).hash_key; + + rc = ena_com_get_feature_ex(ena_dev, &get_resp, + ENA_ADMIN_RSS_HASH_FUNCTION, + ena_dev->rss.hash_key_dma_addr, + sizeof(ena_dev->rss.hash_key), 0); + if (unlikely(rc)) { + hash_key = NULL; + return -EOPNOTSUPP; + } rss->hash_key = dma_alloc_coherent(ena_dev->dmadev, sizeof(*rss->hash_key), @@ -1254,30 +1291,6 @@ static int ena_com_ind_tbl_convert_to_device(struct ena_com_dev *ena_dev) return 0; } -static int ena_com_ind_tbl_convert_from_device(struct ena_com_dev *ena_dev) -{ - u16 dev_idx_to_host_tbl[ENA_TOTAL_NUM_QUEUES] = { (u16)-1 }; - struct ena_rss *rss = &ena_dev->rss; - u8 idx; - u16 i; - - for (i = 0; i < ENA_TOTAL_NUM_QUEUES; i++) - dev_idx_to_host_tbl[ena_dev->io_sq_queues[i].idx] = i; - - for (i = 0; i < 1 << rss->tbl_log_size; i++) { - if (rss->rss_ind_tbl[i].cq_idx > ENA_TOTAL_NUM_QUEUES) - return -EINVAL; - idx = (u8)rss->rss_ind_tbl[i].cq_idx; - - if (dev_idx_to_host_tbl[idx] > ENA_TOTAL_NUM_QUEUES) - return -EINVAL; - - rss->host_rss_ind_tbl[i] = dev_idx_to_host_tbl[idx]; - } - - return 0; -} - static void ena_com_update_intr_delay_resolution(struct ena_com_dev *ena_dev, u16 intr_delay_resolution) { @@ -2297,15 +2310,16 @@ int ena_com_fill_hash_function(struct ena_com_dev *ena_dev, switch (func) { case ENA_ADMIN_TOEPLITZ: - if (key_len > sizeof(hash_key->key)) { - pr_err("key len (%hu) is bigger than the max supported (%zu)\n", - key_len, sizeof(hash_key->key)); - return -EINVAL; + if (key) { + if (key_len != sizeof(hash_key->key)) { + pr_err("key len (%hu) doesn't equal the supported size (%zu)\n", + key_len, sizeof(hash_key->key)); + return -EINVAL; + } + memcpy(hash_key->key, key, key_len); + rss->hash_init_val = init_val; + hash_key->keys_num = key_len >> 2; } - - memcpy(hash_key->key, key, key_len); - rss->hash_init_val = init_val; - hash_key->keys_num = key_len >> 2; break; case ENA_ADMIN_CRC32: rss->hash_init_val = init_val; @@ -2342,7 +2356,11 @@ int ena_com_get_hash_function(struct ena_com_dev *ena_dev, if (unlikely(rc)) return rc; - rss->hash_func = get_resp.u.flow_hash_func.selected_func; + /* ffs() returns 1 in case the lsb is set */ + rss->hash_func = ffs(get_resp.u.flow_hash_func.selected_func); + if (rss->hash_func) + rss->hash_func--; + if (func) *func = rss->hash_func; @@ -2606,10 +2624,6 @@ int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl) if (!ind_tbl) return 0; - rc = ena_com_ind_tbl_convert_from_device(ena_dev); - if (unlikely(rc)) - return rc; - for (i = 0; i < (1 << rss->tbl_log_size); i++) ind_tbl[i] = rss->host_rss_ind_tbl[i]; @@ -2626,9 +2640,15 @@ int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 indr_tbl_log_size) if (unlikely(rc)) goto err_indr_tbl; + /* The following function might return unsupported in case the + * device doesn't support setting the key / hash function. We can safely + * ignore this error and have indirection table support only. + */ rc = ena_com_hash_key_allocate(ena_dev); - if (unlikely(rc)) + if (unlikely(rc) && rc != -EOPNOTSUPP) goto err_hash_key; + else if (rc != -EOPNOTSUPP) + ena_com_hash_key_fill_default_key(ena_dev); rc = ena_com_hash_ctrl_init(ena_dev); if (unlikely(rc)) diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h index 0ce37d54ed10..469f298199a7 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.h +++ b/drivers/net/ethernet/amazon/ena/ena_com.h @@ -44,6 +44,7 @@ #include <linux/spinlock.h> #include <linux/types.h> #include <linux/wait.h> +#include <linux/netdevice.h> #include "ena_common_defs.h" #include "ena_admin_defs.h" @@ -655,6 +656,14 @@ int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size); */ void ena_com_rss_destroy(struct ena_com_dev *ena_dev); +/* ena_com_get_current_hash_function - Get RSS hash function + * @ena_dev: ENA communication layer struct + * + * Return the current hash function. + * @return: 0 or one of the ena_admin_hash_functions values. + */ +int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev); + /* ena_com_fill_hash_function - Fill RSS hash function * @ena_dev: ENA communication layer struct * @func: The hash function (Toeplitz or crc) diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c index b4e891d49a94..ced1d577b62a 100644 --- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c +++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c @@ -636,6 +636,28 @@ static u32 ena_get_rxfh_key_size(struct net_device *netdev) return ENA_HASH_KEY_SIZE; } +static int ena_indirection_table_get(struct ena_adapter *adapter, u32 *indir) +{ + struct ena_com_dev *ena_dev = adapter->ena_dev; + int i, rc; + + if (!indir) + return 0; + + rc = ena_com_indirect_table_get(ena_dev, indir); + if (rc) + return rc; + + /* Our internal representation of the indices is: even indices + * for Tx and uneven indices for Rx. We need to convert the Rx + * indices to be consecutive + */ + for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) + indir[i] = ENA_IO_RXQ_IDX_TO_COMBINED_IDX(indir[i]); + + return rc; +} + static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc) { @@ -644,11 +666,25 @@ static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 func; int rc; - rc = ena_com_indirect_table_get(adapter->ena_dev, indir); + rc = ena_indirection_table_get(adapter, indir); if (rc) return rc; + /* We call this function in order to check if the device + * supports getting/setting the hash function. + */ rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key); + + if (rc) { + if (rc == -EOPNOTSUPP) { + key = NULL; + hfunc = NULL; + rc = 0; + } + + return rc; + } + if (rc) return rc; @@ -657,7 +693,7 @@ static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, func = ETH_RSS_HASH_TOP; break; case ENA_ADMIN_CRC32: - func = ETH_RSS_HASH_XOR; + func = ETH_RSS_HASH_CRC32; break; default: netif_err(adapter, drv, netdev, @@ -700,10 +736,13 @@ static int ena_set_rxfh(struct net_device *netdev, const u32 *indir, } switch (hfunc) { + case ETH_RSS_HASH_NO_CHANGE: + func = ena_com_get_current_hash_function(ena_dev); + break; case ETH_RSS_HASH_TOP: func = ENA_ADMIN_TOEPLITZ; break; - case ETH_RSS_HASH_XOR: + case ETH_RSS_HASH_CRC32: func = ENA_ADMIN_CRC32; break; default: @@ -814,6 +853,7 @@ static const struct ethtool_ops ena_ethtool_ops = { .set_channels = ena_set_channels, .get_tunable = ena_get_tunable, .set_tunable = ena_set_tunable, + .get_ts_info = ethtool_op_get_ts_info, }; void ena_set_ethtool_ops(struct net_device *netdev) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 894e8c1a8cf1..0b2fd96b93d7 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -3706,8 +3706,8 @@ static void check_for_missing_keep_alive(struct ena_adapter *adapter) if (adapter->keep_alive_timeout == ENA_HW_HINTS_NO_TIMEOUT) return; - keep_alive_expired = round_jiffies(adapter->last_keep_alive_jiffies + - adapter->keep_alive_timeout); + keep_alive_expired = adapter->last_keep_alive_jiffies + + adapter->keep_alive_timeout; if (unlikely(time_is_before_jiffies(keep_alive_expired))) { netif_err(adapter, drv, adapter->netdev, "Keep alive watchdog timeout.\n"); @@ -3809,7 +3809,7 @@ static void ena_timer_service(struct timer_list *t) } /* Reset the timer */ - mod_timer(&adapter->timer_service, jiffies + HZ); + mod_timer(&adapter->timer_service, round_jiffies(jiffies + HZ)); } static int ena_calc_max_io_queue_num(struct pci_dev *pdev, diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index 094324fd0edc..8795e0b1dc3c 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -130,6 +130,8 @@ #define ENA_IO_TXQ_IDX(q) (2 * (q)) #define ENA_IO_RXQ_IDX(q) (2 * (q) + 1) +#define ENA_IO_TXQ_IDX_TO_COMBINED_IDX(q) ((q) / 2) +#define ENA_IO_RXQ_IDX_TO_COMBINED_IDX(q) (((q) - 1) / 2) #define ENA_MGMNT_IRQ_IDX 0 #define ENA_IO_IRQ_FIRST_IDX 1 |