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From: Arthur Kiyanovski <akiyano@amazon.com>
Date: Tue, 11 Jun 2019 14:58:05 +0300
Subject: [PATCH] net: ena: add MAX_QUEUES_EXT get feature admin command
Origin: https://git.kernel.org/linus/ba8ef506fb91005fc4808370b7587ab7bf4bd918
Bug-Debian: https://bugs.debian.org/941291
Add a new admin command to support different queue size for Tx/Rx
queues (the change also support different SQ/CQ sizes)
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
.../net/ethernet/amazon/ena/ena_admin_defs.h | 56 +++++++++++++-
drivers/net/ethernet/amazon/ena/ena_com.c | 76 ++++++++++++-------
drivers/net/ethernet/amazon/ena/ena_com.h | 3 +
3 files changed, 105 insertions(+), 30 deletions(-)
--- a/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
@@ -60,6 +60,7 @@ enum ena_admin_aq_feature_id {
ENA_ADMIN_MAX_QUEUES_NUM = 2,
ENA_ADMIN_HW_HINTS = 3,
ENA_ADMIN_LLQ = 4,
+ ENA_ADMIN_MAX_QUEUES_EXT = 7,
ENA_ADMIN_RSS_HASH_FUNCTION = 10,
ENA_ADMIN_STATELESS_OFFLOAD_CONFIG = 11,
ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG = 12,
@@ -421,7 +422,13 @@ struct ena_admin_get_set_feature_common_
/* as appears in ena_admin_aq_feature_id */
u8 feature_id;
- u16 reserved16;
+ /* The driver specifies the max feature version it supports and the
+ * device responds with the currently supported feature version. The
+ * field is zero based
+ */
+ u8 feature_version;
+
+ u8 reserved8;
};
struct ena_admin_device_attr_feature_desc {
@@ -531,6 +538,34 @@ struct ena_admin_feature_llq_desc {
u32 max_tx_burst_size;
};
+struct ena_admin_queue_ext_feature_fields {
+ u32 max_tx_sq_num;
+
+ u32 max_tx_cq_num;
+
+ u32 max_rx_sq_num;
+
+ u32 max_rx_cq_num;
+
+ u32 max_tx_sq_depth;
+
+ u32 max_tx_cq_depth;
+
+ u32 max_rx_sq_depth;
+
+ u32 max_rx_cq_depth;
+
+ u32 max_tx_header_size;
+
+ /* Maximum Descriptors number, including meta descriptor, allowed for
+ * a single Tx packet
+ */
+ u16 max_per_packet_tx_descs;
+
+ /* Maximum Descriptors number allowed for a single Rx packet */
+ u16 max_per_packet_rx_descs;
+};
+
struct ena_admin_queue_feature_desc {
u32 max_sq_num;
@@ -837,6 +872,19 @@ struct ena_admin_get_feat_cmd {
u32 raw[11];
};
+struct ena_admin_queue_ext_feature_desc {
+ /* version */
+ u8 version;
+
+ u8 reserved1[3];
+
+ union {
+ struct ena_admin_queue_ext_feature_fields max_queue_ext;
+
+ u32 raw[10];
+ };
+};
+
struct ena_admin_get_feat_resp {
struct ena_admin_acq_common_desc acq_common_desc;
@@ -849,6 +897,8 @@ struct ena_admin_get_feat_resp {
struct ena_admin_queue_feature_desc max_queue;
+ struct ena_admin_queue_ext_feature_desc max_queue_ext;
+
struct ena_admin_feature_aenq_desc aenq;
struct ena_admin_get_feature_link_desc link;
@@ -913,7 +963,9 @@ struct ena_admin_aenq_common_desc {
u16 syndrom;
- /* 0 : phase */
+ /* 0 : phase
+ * 7:1 : reserved - MBZ
+ */
u8 flags;
u8 reserved1[3];
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -983,7 +983,8 @@ static int ena_com_get_feature_ex(struct
struct ena_admin_get_feat_resp *get_resp,
enum ena_admin_aq_feature_id feature_id,
dma_addr_t control_buf_dma_addr,
- u32 control_buff_size)
+ u32 control_buff_size,
+ u8 feature_ver)
{
struct ena_com_admin_queue *admin_queue;
struct ena_admin_get_feat_cmd get_cmd;
@@ -1014,7 +1015,7 @@ static int ena_com_get_feature_ex(struct
}
get_cmd.control_buffer.length = control_buff_size;
-
+ get_cmd.feat_common.feature_version = feature_ver;
get_cmd.feat_common.feature_id = feature_id;
ret = ena_com_execute_admin_command(admin_queue,
@@ -1034,13 +1035,15 @@ static int ena_com_get_feature_ex(struct
static int ena_com_get_feature(struct ena_com_dev *ena_dev,
struct ena_admin_get_feat_resp *get_resp,
- enum ena_admin_aq_feature_id feature_id)
+ enum ena_admin_aq_feature_id feature_id,
+ u8 feature_ver)
{
return ena_com_get_feature_ex(ena_dev,
get_resp,
feature_id,
0,
- 0);
+ 0,
+ feature_ver);
}
static void ena_com_hash_key_fill_default_key(struct ena_com_dev *ena_dev)
@@ -1118,7 +1121,7 @@ static int ena_com_indirect_table_alloca
int ret;
ret = ena_com_get_feature(ena_dev, &get_resp,
- ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG);
+ ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG, 0);
if (unlikely(ret))
return ret;
@@ -1538,7 +1541,7 @@ int ena_com_set_aenq_config(struct ena_c
struct ena_admin_get_feat_resp get_resp;
int ret;
- ret = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_AENQ_CONFIG);
+ ret = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_AENQ_CONFIG, 0);
if (ret) {
pr_info("Can't get aenq configuration\n");
return ret;
@@ -1913,7 +1916,7 @@ void ena_com_destroy_io_queue(struct ena
int ena_com_get_link_params(struct ena_com_dev *ena_dev,
struct ena_admin_get_feat_resp *resp)
{
- return ena_com_get_feature(ena_dev, resp, ENA_ADMIN_LINK_CONFIG);
+ return ena_com_get_feature(ena_dev, resp, ENA_ADMIN_LINK_CONFIG, 0);
}
int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,
@@ -1923,7 +1926,7 @@ int ena_com_get_dev_attr_feat(struct ena
int rc;
rc = ena_com_get_feature(ena_dev, &get_resp,
- ENA_ADMIN_DEVICE_ATTRIBUTES);
+ ENA_ADMIN_DEVICE_ATTRIBUTES, 0);
if (rc)
return rc;
@@ -1931,17 +1934,34 @@ int ena_com_get_dev_attr_feat(struct ena
sizeof(get_resp.u.dev_attr));
ena_dev->supported_features = get_resp.u.dev_attr.supported_features;
- rc = ena_com_get_feature(ena_dev, &get_resp,
- ENA_ADMIN_MAX_QUEUES_NUM);
- if (rc)
- return rc;
+ if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
+ rc = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_MAX_QUEUES_EXT,
+ ENA_FEATURE_MAX_QUEUE_EXT_VER);
+ if (rc)
+ return rc;
- memcpy(&get_feat_ctx->max_queues, &get_resp.u.max_queue,
- sizeof(get_resp.u.max_queue));
- ena_dev->tx_max_header_size = get_resp.u.max_queue.max_header_size;
+ if (get_resp.u.max_queue_ext.version != ENA_FEATURE_MAX_QUEUE_EXT_VER)
+ return -EINVAL;
+
+ memcpy(&get_feat_ctx->max_queue_ext, &get_resp.u.max_queue_ext,
+ sizeof(get_resp.u.max_queue_ext));
+ ena_dev->tx_max_header_size =
+ get_resp.u.max_queue_ext.max_queue_ext.max_tx_header_size;
+ } else {
+ rc = ena_com_get_feature(ena_dev, &get_resp,
+ ENA_ADMIN_MAX_QUEUES_NUM, 0);
+ memcpy(&get_feat_ctx->max_queues, &get_resp.u.max_queue,
+ sizeof(get_resp.u.max_queue));
+ ena_dev->tx_max_header_size =
+ get_resp.u.max_queue.max_header_size;
+
+ if (rc)
+ return rc;
+ }
rc = ena_com_get_feature(ena_dev, &get_resp,
- ENA_ADMIN_AENQ_CONFIG);
+ ENA_ADMIN_AENQ_CONFIG, 0);
if (rc)
return rc;
@@ -1949,7 +1969,7 @@ int ena_com_get_dev_attr_feat(struct ena
sizeof(get_resp.u.aenq));
rc = ena_com_get_feature(ena_dev, &get_resp,
- ENA_ADMIN_STATELESS_OFFLOAD_CONFIG);
+ ENA_ADMIN_STATELESS_OFFLOAD_CONFIG, 0);
if (rc)
return rc;
@@ -1959,7 +1979,7 @@ int ena_com_get_dev_attr_feat(struct ena
/* Driver hints isn't mandatory admin command. So in case the
* command isn't supported set driver hints to 0
*/
- rc = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_HW_HINTS);
+ rc = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_HW_HINTS, 0);
if (!rc)
memcpy(&get_feat_ctx->hw_hints, &get_resp.u.hw_hints,
@@ -1970,7 +1990,7 @@ int ena_com_get_dev_attr_feat(struct ena
else
return rc;
- rc = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_LLQ);
+ rc = ena_com_get_feature(ena_dev, &get_resp, ENA_ADMIN_LLQ, 0);
if (!rc)
memcpy(&get_feat_ctx->llq, &get_resp.u.llq,
sizeof(get_resp.u.llq));
@@ -2208,7 +2228,7 @@ int ena_com_get_offload_settings(struct
struct ena_admin_get_feat_resp resp;
ret = ena_com_get_feature(ena_dev, &resp,
- ENA_ADMIN_STATELESS_OFFLOAD_CONFIG);
+ ENA_ADMIN_STATELESS_OFFLOAD_CONFIG, 0);
if (unlikely(ret)) {
pr_err("Failed to get offload capabilities %d\n", ret);
return ret;
@@ -2237,7 +2257,7 @@ int ena_com_set_hash_function(struct ena
/* Validate hash function is supported */
ret = ena_com_get_feature(ena_dev, &get_resp,
- ENA_ADMIN_RSS_HASH_FUNCTION);
+ ENA_ADMIN_RSS_HASH_FUNCTION, 0);
if (unlikely(ret))
return ret;
@@ -2297,7 +2317,7 @@ int ena_com_fill_hash_function(struct en
rc = ena_com_get_feature_ex(ena_dev, &get_resp,
ENA_ADMIN_RSS_HASH_FUNCTION,
rss->hash_key_dma_addr,
- sizeof(*rss->hash_key));
+ sizeof(*rss->hash_key), 0);
if (unlikely(rc))
return rc;
@@ -2350,7 +2370,7 @@ int ena_com_get_hash_function(struct ena
rc = ena_com_get_feature_ex(ena_dev, &get_resp,
ENA_ADMIN_RSS_HASH_FUNCTION,
rss->hash_key_dma_addr,
- sizeof(*rss->hash_key));
+ sizeof(*rss->hash_key), 0);
if (unlikely(rc))
return rc;
@@ -2379,7 +2399,7 @@ int ena_com_get_hash_ctrl(struct ena_com
rc = ena_com_get_feature_ex(ena_dev, &get_resp,
ENA_ADMIN_RSS_HASH_INPUT,
rss->hash_ctrl_dma_addr,
- sizeof(*rss->hash_ctrl));
+ sizeof(*rss->hash_ctrl), 0);
if (unlikely(rc))
return rc;
@@ -2615,7 +2635,7 @@ int ena_com_indirect_table_get(struct en
rc = ena_com_get_feature_ex(ena_dev, &get_resp,
ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG,
rss->rss_ind_tbl_dma_addr,
- tbl_size);
+ tbl_size, 0);
if (unlikely(rc))
return rc;
@@ -2831,7 +2851,7 @@ int ena_com_init_interrupt_moderation(st
int rc;
rc = ena_com_get_feature(ena_dev, &get_resp,
- ENA_ADMIN_INTERRUPT_MODERATION);
+ ENA_ADMIN_INTERRUPT_MODERATION, 0);
if (rc) {
if (rc == -EOPNOTSUPP) {
--- a/drivers/net/ethernet/amazon/ena/ena_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_com.h
@@ -102,6 +102,8 @@
#define ENA_HW_HINTS_NO_TIMEOUT 0xFFFF
+#define ENA_FEATURE_MAX_QUEUE_EXT_VER 1
+
enum ena_intr_moder_level {
ENA_INTR_MODER_LOWEST = 0,
ENA_INTR_MODER_LOW,
@@ -383,6 +385,7 @@ struct ena_com_dev {
struct ena_com_dev_get_features_ctx {
struct ena_admin_queue_feature_desc max_queues;
+ struct ena_admin_queue_ext_feature_desc max_queue_ext;
struct ena_admin_device_attr_feature_desc dev_attr;
struct ena_admin_feature_aenq_desc aenq;
struct ena_admin_feature_offload_desc offload;
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