* [PATCH V2 net-next 01/14] net: ena: add support for the rx offset feature
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 02/14] net: ena: rename ena_com_free_desc to make API more uniform akiyano
` (14 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
Newer ENA devices can write data to rx buffers with an offset
from the beginning of the buffer.
This commit adds support for this feature in the driver.
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
.../net/ethernet/amazon/ena/ena_admin_defs.h | 5 ++++-
drivers/net/ethernet/amazon/ena/ena_eth_com.c | 18 ++++++++++++------
drivers/net/ethernet/amazon/ena/ena_eth_com.h | 1 +
.../net/ethernet/amazon/ena/ena_eth_io_defs.h | 4 +++-
drivers/net/ethernet/amazon/ena/ena_netdev.c | 8 ++++++++
5 files changed, 28 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_admin_defs.h b/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
index 7be3dcbf3d16..727836f638ad 100644
--- a/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
@@ -813,7 +813,8 @@ struct ena_admin_host_info {
u16 reserved;
- /* 1 :0 : reserved
+ /* 0 : reserved
+ * 1 : rx_offset
* 2 : interrupt_moderation
* 31:3 : reserved
*/
@@ -1124,6 +1125,8 @@ struct ena_admin_ena_mmio_req_read_less_resp {
#define ENA_ADMIN_HOST_INFO_DEVICE_MASK GENMASK(7, 3)
#define ENA_ADMIN_HOST_INFO_BUS_SHIFT 8
#define ENA_ADMIN_HOST_INFO_BUS_MASK GENMASK(15, 8)
+#define ENA_ADMIN_HOST_INFO_RX_OFFSET_SHIFT 1
+#define ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK BIT(1)
#define ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_SHIFT 2
#define ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_MASK BIT(2)
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.c b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
index 2845ac277724..a014f514c069 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
@@ -519,7 +519,7 @@ int ena_com_rx_pkt(struct ena_com_io_cq *io_cq,
struct ena_eth_io_rx_cdesc_base *cdesc = NULL;
u16 cdesc_idx = 0;
u16 nb_hw_desc;
- u16 i;
+ u16 i = 0;
WARN(io_cq->direction != ENA_COM_IO_QUEUE_DIRECTION_RX, "wrong Q type");
@@ -538,13 +538,19 @@ int ena_com_rx_pkt(struct ena_com_io_cq *io_cq,
return -ENOSPC;
}
- for (i = 0; i < nb_hw_desc; i++) {
+ cdesc = ena_com_rx_cdesc_idx_to_ptr(io_cq, cdesc_idx);
+ ena_rx_ctx->pkt_offset = cdesc->offset;
+
+ do {
+ ena_buf[i].len = cdesc->length;
+ ena_buf[i].req_id = cdesc->req_id;
+
+ if (++i >= nb_hw_desc)
+ break;
+
cdesc = ena_com_rx_cdesc_idx_to_ptr(io_cq, cdesc_idx + i);
- ena_buf->len = cdesc->length;
- ena_buf->req_id = cdesc->req_id;
- ena_buf++;
- }
+ } while (1);
/* Update SQ head ptr */
io_sq->next_to_comp += nb_hw_desc;
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.h b/drivers/net/ethernet/amazon/ena/ena_eth_com.h
index 77986c0ea52c..9834b5cdb655 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.h
@@ -73,6 +73,7 @@ struct ena_com_rx_ctx {
u32 hash;
u16 descs;
int max_bufs;
+ u8 pkt_offset;
};
int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h b/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h
index 00e0f056a741..ee28fb067d8c 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h
@@ -264,7 +264,9 @@ struct ena_eth_io_rx_cdesc_base {
u16 sub_qid;
- u16 reserved;
+ u8 offset;
+
+ u8 reserved;
};
/* 8-word format */
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 85b87ed02dd5..33578297dc56 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1435,6 +1435,8 @@ static struct sk_buff *ena_rx_skb(struct ena_ring *rx_ring,
skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_info->page,
rx_info->page_offset, len, ENA_PAGE_SIZE);
+ /* The offset is non zero only for the first buffer */
+ rx_info->page_offset = 0;
netif_dbg(rx_ring->adapter, rx_status, rx_ring->netdev,
"rx skb updated. len %d. data_len %d\n",
@@ -1590,6 +1592,7 @@ static int ena_clean_rx_irq(struct ena_ring *rx_ring, struct napi_struct *napi,
{
u16 next_to_clean = rx_ring->next_to_clean;
struct ena_com_rx_ctx ena_rx_ctx;
+ struct ena_rx_buffer *rx_info;
struct ena_adapter *adapter;
u32 res_budget, work_done;
int rx_copybreak_pkt = 0;
@@ -1614,6 +1617,7 @@ static int ena_clean_rx_irq(struct ena_ring *rx_ring, struct napi_struct *napi,
ena_rx_ctx.ena_bufs = rx_ring->ena_bufs;
ena_rx_ctx.max_bufs = rx_ring->sgl_size;
ena_rx_ctx.descs = 0;
+ ena_rx_ctx.pkt_offset = 0;
rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq,
rx_ring->ena_com_io_sq,
&ena_rx_ctx);
@@ -1623,6 +1627,9 @@ static int ena_clean_rx_irq(struct ena_ring *rx_ring, struct napi_struct *napi,
if (unlikely(ena_rx_ctx.descs == 0))
break;
+ rx_info = &rx_ring->rx_buffer_info[rx_ring->ena_bufs[0].req_id];
+ rx_info->page_offset = ena_rx_ctx.pkt_offset;
+
netif_dbg(rx_ring->adapter, rx_status, rx_ring->netdev,
"rx_poll: q %d got packet from ena. descs #: %d l3 proto %d l4 proto %d hash: %x\n",
rx_ring->qid, ena_rx_ctx.descs, ena_rx_ctx.l3_proto,
@@ -3111,6 +3118,7 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev,
host_info->num_cpus = num_online_cpus();
host_info->driver_supported_features =
+ ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK |
ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_MASK;
rc = ena_com_set_host_attributes(ena_dev);
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 02/14] net: ena: rename ena_com_free_desc to make API more uniform
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 01/14] net: ena: add support for the rx offset feature akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 03/14] net: ena: use explicit variable size for clarity akiyano
` (13 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj, Igor Chauskin
From: Arthur Kiyanovski <akiyano@amazon.com>
Rename ena_com_free_desc to ena_com_free_q_entries to match
the LLQ mode.
In non-LLQ mode, an entry in an IO ring corresponds to a
a descriptor. In LLQ mode an entry may correspond to several
descriptors (per LLQ definition).
Signed-off-by: Igor Chauskin <igorch@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_eth_com.h | 6 +++---
drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 ++---
2 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.h b/drivers/net/ethernet/amazon/ena/ena_eth_com.h
index 9834b5cdb655..8b1afd3b32f2 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.h
@@ -96,7 +96,7 @@ static inline void ena_com_unmask_intr(struct ena_com_io_cq *io_cq,
writel(intr_reg->intr_control, io_cq->unmask_reg);
}
-static inline int ena_com_free_desc(struct ena_com_io_sq *io_sq)
+static inline int ena_com_free_q_entries(struct ena_com_io_sq *io_sq)
{
u16 tail, next_to_comp, cnt;
@@ -114,7 +114,7 @@ static inline bool ena_com_sq_have_enough_space(struct ena_com_io_sq *io_sq,
int temp;
if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
- return ena_com_free_desc(io_sq) >= required_buffers;
+ return ena_com_free_q_entries(io_sq) >= required_buffers;
/* This calculation doesn't need to be 100% accurate. So to reduce
* the calculation overhead just Subtract 2 lines from the free descs
@@ -123,7 +123,7 @@ static inline bool ena_com_sq_have_enough_space(struct ena_com_io_sq *io_sq,
*/
temp = required_buffers / io_sq->llq_info.descs_per_entry + 2;
- return ena_com_free_desc(io_sq) > temp;
+ return ena_com_free_q_entries(io_sq) > temp;
}
static inline bool ena_com_meta_desc_changed(struct ena_com_io_sq *io_sq,
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 33578297dc56..c3cbe48b353e 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1691,7 +1691,7 @@ static int ena_clean_rx_irq(struct ena_ring *rx_ring, struct napi_struct *napi,
rx_ring->next_to_clean = next_to_clean;
- refill_required = ena_com_free_desc(rx_ring->ena_com_io_sq);
+ refill_required = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
refill_threshold =
min_t(int, rx_ring->ring_size / ENA_RX_REFILL_THRESH_DIVIDER,
ENA_RX_REFILL_THRESH_PACKET);
@@ -3694,8 +3694,7 @@ static void check_for_empty_rx_ring(struct ena_adapter *adapter)
for (i = 0; i < adapter->num_io_queues; i++) {
rx_ring = &adapter->rx_ring[i];
- refill_required =
- ena_com_free_desc(rx_ring->ena_com_io_sq);
+ refill_required = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
if (unlikely(refill_required == (rx_ring->ring_size - 1))) {
rx_ring->empty_rx_queue++;
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 03/14] net: ena: use explicit variable size for clarity
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 01/14] net: ena: add support for the rx offset feature akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 02/14] net: ena: rename ena_com_free_desc to make API more uniform akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 04/14] net: ena: fix ena_com_comp_status_to_errno() return value akiyano
` (12 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj, Shai Brandes
From: Arthur Kiyanovski <akiyano@amazon.com>
Use u64 instead of unsigned long long for clarity
Signed-off-by: Shai Brandes <shaibran@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index b51bf62af11b..02780f9fa586 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -2003,7 +2003,7 @@ void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data)
struct ena_admin_aenq_entry *aenq_e;
struct ena_admin_aenq_common_desc *aenq_common;
struct ena_com_aenq *aenq = &dev->aenq;
- unsigned long long timestamp;
+ u64 timestamp;
ena_aenq_handler handler_cb;
u16 masked_head, processed = 0;
u8 phase;
@@ -2021,9 +2021,8 @@ void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data)
*/
dma_rmb();
- timestamp =
- (unsigned long long)aenq_common->timestamp_low |
- ((unsigned long long)aenq_common->timestamp_high << 32);
+ timestamp = (u64)aenq_common->timestamp_low |
+ ((u64)aenq_common->timestamp_high << 32);
pr_debug("AENQ! Group[%x] Syndrom[%x] timestamp: [%llus]\n",
aenq_common->group, aenq_common->syndrom, timestamp);
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 04/14] net: ena: fix ena_com_comp_status_to_errno() return value
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (2 preceding siblings ...)
2020-05-22 9:08 ` [PATCH V2 net-next 03/14] net: ena: use explicit variable size for clarity akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 05/14] net: ena: simplify ena_com_update_intr_delay_resolution() akiyano
` (11 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
Default return value should be -EINVAL since the input
in this case was unexpected.
Also remove the now redundant check in the beginning
of the function.
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index 02780f9fa586..921945dace22 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -523,9 +523,6 @@ static int ena_com_comp_status_to_errno(u8 comp_status)
if (unlikely(comp_status != 0))
pr_err("admin command failed[%u]\n", comp_status);
- if (unlikely(comp_status > ENA_ADMIN_UNKNOWN_ERROR))
- return -EINVAL;
-
switch (comp_status) {
case ENA_ADMIN_SUCCESS:
return 0;
@@ -540,7 +537,7 @@ static int ena_com_comp_status_to_errno(u8 comp_status)
return -EINVAL;
}
- return 0;
+ return -EINVAL;
}
static int ena_com_wait_and_process_admin_cq_polling(struct ena_comp_ctx *comp_ctx,
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 05/14] net: ena: simplify ena_com_update_intr_delay_resolution()
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (3 preceding siblings ...)
2020-05-22 9:08 ` [PATCH V2 net-next 04/14] net: ena: fix ena_com_comp_status_to_errno() return value akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 06/14] net: ena: cosmetic: rename ena_update_tx/rx_rings_intr_moderation() akiyano
` (10 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
Initialize prev_intr_delay_resolution with ena_dev->intr_delay_resolution
unconditionally, since it is initialized with
ENA_DEFAULT_INTR_DELAY_RESOLUTION in ena_probe(). This approach makes much
more sense than handling errors of not initializing it.
Also added unlikely to if condition.
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index 921945dace22..e2025eb86984 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -1281,13 +1281,9 @@ static int ena_com_ind_tbl_convert_to_device(struct ena_com_dev *ena_dev)
static void ena_com_update_intr_delay_resolution(struct ena_com_dev *ena_dev,
u16 intr_delay_resolution)
{
- /* Initial value of intr_delay_resolution might be 0 */
- u16 prev_intr_delay_resolution =
- ena_dev->intr_delay_resolution ?
- ena_dev->intr_delay_resolution :
- ENA_DEFAULT_INTR_DELAY_RESOLUTION;
+ u16 prev_intr_delay_resolution = ena_dev->intr_delay_resolution;
- if (!intr_delay_resolution) {
+ if (unlikely(!intr_delay_resolution)) {
pr_err("Illegal intr_delay_resolution provided. Going to use default 1 usec resolution\n");
intr_delay_resolution = ENA_DEFAULT_INTR_DELAY_RESOLUTION;
}
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 06/14] net: ena: cosmetic: rename ena_update_tx/rx_rings_intr_moderation()
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (4 preceding siblings ...)
2020-05-22 9:08 ` [PATCH V2 net-next 05/14] net: ena: simplify ena_com_update_intr_delay_resolution() akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 07/14] net: ena: cosmetic: set queue sizes to u32 for consistency akiyano
` (9 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
Rename ena_update_tx/rx_rings_intr_moderation() to
ena_update_tx/rx_rings_nonadaptive_intr_moderation()
to distinguish between adaptive and non adaptive interrupt moderaion.
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_ethtool.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index 830d3711d6ee..ca13efa13b63 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -326,7 +326,7 @@ static int ena_get_coalesce(struct net_device *net_dev,
return 0;
}
-static void ena_update_tx_rings_intr_moderation(struct ena_adapter *adapter)
+static void ena_update_tx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter)
{
unsigned int val;
int i;
@@ -337,7 +337,7 @@ static void ena_update_tx_rings_intr_moderation(struct ena_adapter *adapter)
adapter->tx_ring[i].smoothed_interval = val;
}
-static void ena_update_rx_rings_intr_moderation(struct ena_adapter *adapter)
+static void ena_update_rx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter)
{
unsigned int val;
int i;
@@ -365,14 +365,14 @@ static int ena_set_coalesce(struct net_device *net_dev,
if (rc)
return rc;
- ena_update_tx_rings_intr_moderation(adapter);
+ ena_update_tx_rings_nonadaptive_intr_moderation(adapter);
rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
coalesce->rx_coalesce_usecs);
if (rc)
return rc;
- ena_update_rx_rings_intr_moderation(adapter);
+ ena_update_rx_rings_nonadaptive_intr_moderation(adapter);
if (coalesce->use_adaptive_rx_coalesce &&
!ena_com_get_adaptive_moderation_enabled(ena_dev))
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 07/14] net: ena: cosmetic: set queue sizes to u32 for consistency
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (5 preceding siblings ...)
2020-05-22 9:08 ` [PATCH V2 net-next 06/14] net: ena: cosmetic: rename ena_update_tx/rx_rings_intr_moderation() akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:08 ` [PATCH V2 net-next 08/14] net: ena: cosmetic: fix spelling and grammar mistakes in comments akiyano
` (8 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
Make all types of variables that convey the number and sizeof queues to
be u32, for consistency with the API between the driver and device via
ena_admin_defs.h:ena_admin_get_feat_resp.max_queue_ext fields. Current
code sometimes uses int and there are multiple assignments between these
variables with different types.
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_netdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index c3cbe48b353e..0999fe3310fb 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -3832,11 +3832,11 @@ static void ena_timer_service(struct timer_list *t)
mod_timer(&adapter->timer_service, round_jiffies(jiffies + HZ));
}
-static int ena_calc_max_io_queue_num(struct pci_dev *pdev,
+static u32 ena_calc_max_io_queue_num(struct pci_dev *pdev,
struct ena_com_dev *ena_dev,
struct ena_com_dev_get_features_ctx *get_feat_ctx)
{
- int io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
+ u32 io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
struct ena_admin_queue_ext_feature_fields *max_queue_ext =
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 08/14] net: ena: cosmetic: fix spelling and grammar mistakes in comments
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (6 preceding siblings ...)
2020-05-22 9:08 ` [PATCH V2 net-next 07/14] net: ena: cosmetic: set queue sizes to u32 for consistency akiyano
@ 2020-05-22 9:08 ` akiyano
2020-05-22 9:09 ` [PATCH V2 net-next 09/14] net: ena: cosmetic: fix line break issues akiyano
` (7 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:08 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
fix spelling and grammar mistakes in comments in ena_com.h,
ena_com.c and ena_netdev.c
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 2 +-
drivers/net/ethernet/amazon/ena/ena_com.h | 30 ++++++++++----------
drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 +-
3 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index e2025eb86984..d47821655d61 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -772,7 +772,7 @@ static int ena_com_wait_and_process_admin_cq_interrupts(struct ena_comp_ctx *com
if (admin_queue->auto_polling)
admin_queue->polling = true;
} else {
- pr_err("The ena device doesn't send a completion for the admin cmd %d status %d\n",
+ pr_err("The ena device didn't send a completion for the admin cmd %d status %d\n",
comp_ctx->cmd_opcode, comp_ctx->status);
}
/* Check if shifted to polling mode.
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h
index 13a1b7812c46..bd65ae205f8d 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_com.h
@@ -393,7 +393,7 @@ struct ena_aenq_handlers {
*/
int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev);
-/* ena_com_set_mmio_read_mode - Enable/disable the mmio reg read mechanism
+/* ena_com_set_mmio_read_mode - Enable/disable the indirect mmio reg read mechanism
* @ena_dev: ENA communication layer struct
* @readless_supported: readless mode (enable/disable)
*/
@@ -515,7 +515,7 @@ void ena_com_set_admin_auto_polling_mode(struct ena_com_dev *ena_dev,
/* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler
* @ena_dev: ENA communication layer struct
*
- * This method go over the admin completion queue and wake up all the pending
+ * This method goes over the admin completion queue and wakes up all the pending
* threads that wait on the commands wait event.
*
* @note: Should be called after MSI-X interrupt.
@@ -525,7 +525,7 @@ void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev);
/* ena_com_aenq_intr_handler - AENQ interrupt handler
* @ena_dev: ENA communication layer struct
*
- * This method go over the async event notification queue and call the proper
+ * This method goes over the async event notification queue and calls the proper
* aenq handler.
*/
void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data);
@@ -542,14 +542,14 @@ void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev);
/* ena_com_wait_for_abort_completion - Wait for admin commands abort.
* @ena_dev: ENA communication layer struct
*
- * This method wait until all the outstanding admin commands will be completed.
+ * This method waits until all the outstanding admin commands are completed.
*/
void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev);
/* ena_com_validate_version - Validate the device parameters
* @ena_dev: ENA communication layer struct
*
- * This method validate the device parameters are the same as the saved
+ * This method verifies the device parameters are the same as the saved
* parameters in ena_dev.
* This method is useful after device reset, to validate the device mac address
* and the device offloads are the same as before the reset.
@@ -689,7 +689,7 @@ int ena_com_set_hash_function(struct ena_com_dev *ena_dev);
*
* Retrieve the hash function from the device.
*
- * @note: If the caller called ena_com_fill_hash_function but didn't flash
+ * @note: If the caller called ena_com_fill_hash_function but didn't flush
* it to the device, the new configuration will be lost.
*
* @return: 0 on Success and negative value otherwise.
@@ -703,7 +703,7 @@ int ena_com_get_hash_function(struct ena_com_dev *ena_dev,
*
* Retrieve the hash key.
*
- * @note: If the caller called ena_com_fill_hash_key but didn't flash
+ * @note: If the caller called ena_com_fill_hash_key but didn't flush
* it to the device, the new configuration will be lost.
*
* @return: 0 on Success and negative value otherwise.
@@ -743,7 +743,7 @@ int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev);
*
* Retrieve the hash control from the device.
*
- * @note, If the caller called ena_com_fill_hash_ctrl but didn't flash
+ * @note: If the caller called ena_com_fill_hash_ctrl but didn't flush
* it to the device, the new configuration will be lost.
*
* @return: 0 on Success and negative value otherwise.
@@ -795,7 +795,7 @@ int ena_com_indirect_table_set(struct ena_com_dev *ena_dev);
*
* Retrieve the RSS indirection table from the device.
*
- * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flash
+ * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flush
* it to the device, the new configuration will be lost.
*
* @return: 0 on Success and negative value otherwise.
@@ -821,14 +821,14 @@ int ena_com_allocate_debug_area(struct ena_com_dev *ena_dev,
/* ena_com_delete_debug_area - Free the debug area resources.
* @ena_dev: ENA communication layer struct
*
- * Free the allocate debug area.
+ * Free the allocated debug area.
*/
void ena_com_delete_debug_area(struct ena_com_dev *ena_dev);
/* ena_com_delete_host_info - Free the host info resources.
* @ena_dev: ENA communication layer struct
*
- * Free the allocate host info.
+ * Free the allocated host info.
*/
void ena_com_delete_host_info(struct ena_com_dev *ena_dev);
@@ -869,9 +869,9 @@ int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev,
* @cmd_completion: command completion return value.
* @cmd_comp_size: command completion size.
- * Submit an admin command and then wait until the device will return a
+ * Submit an admin command and then wait until the device returns a
* completion.
- * The completion will be copyed into cmd_comp.
+ * The completion will be copied into cmd_comp.
*
* @return - 0 on success, negative value on failure.
*/
@@ -934,7 +934,7 @@ unsigned int ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *
/* ena_com_config_dev_mode - Configure the placement policy of the device.
* @ena_dev: ENA communication layer struct
* @llq_features: LLQ feature descriptor, retrieve via
- * ena_com_get_dev_attr_feat.
+ * ena_com_get_dev_attr_feat.
* @ena_llq_config: The default driver LLQ parameters configurations
*/
int ena_com_config_dev_mode(struct ena_com_dev *ena_dev,
@@ -960,7 +960,7 @@ static inline void ena_com_disable_adaptive_moderation(struct ena_com_dev *ena_d
* @intr_reg: interrupt register to update.
* @rx_delay_interval: Rx interval in usecs
* @tx_delay_interval: Tx interval in usecs
- * @unmask: unask enable/disable
+ * @unmask: unmask enable/disable
*
* Prepare interrupt update register with the supplied parameters.
*/
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 0999fe3310fb..0349e0305608 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -4190,7 +4190,7 @@ static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
calc_queue_ctx.get_feat_ctx = &get_feat_ctx;
calc_queue_ctx.pdev = pdev;
- /* Initial Tx and RX interrupt delay. Assumes 1 usec granularity.
+ /* Initial TX and RX interrupt delay. Assumes 1 usec granularity.
* Updated during device initialization with the real granularity
*/
ena_dev->intr_moder_tx_interval = ENA_INTR_INITIAL_TX_INTERVAL_USECS;
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 09/14] net: ena: cosmetic: fix line break issues
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (7 preceding siblings ...)
2020-05-22 9:08 ` [PATCH V2 net-next 08/14] net: ena: cosmetic: fix spelling and grammar mistakes in comments akiyano
@ 2020-05-22 9:09 ` akiyano
2020-05-22 9:09 ` [PATCH V2 net-next 10/14] net: ena: cosmetic: remove unnecessary code akiyano
` (6 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:09 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
1. Join unnecessarily broken short lines in ena_com.c ena_netdev.c
2. Fix Indentations of broken lines
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 8 +++-----
drivers/net/ethernet/amazon/ena/ena_netdev.c | 13 ++++++-------
2 files changed, 9 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index d47821655d61..a513d71576bd 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -375,7 +375,7 @@ static int ena_com_init_io_sq(struct ena_com_dev *ena_dev,
io_sq->bounce_buf_ctrl.next_to_use = 0;
size = io_sq->bounce_buf_ctrl.buffer_size *
- io_sq->bounce_buf_ctrl.buffers_num;
+ io_sq->bounce_buf_ctrl.buffers_num;
dev_node = dev_to_node(ena_dev->dmadev);
set_dev_node(ena_dev->dmadev, ctx->numa_node);
@@ -699,8 +699,7 @@ static int ena_com_config_llq_info(struct ena_com_dev *ena_dev,
/* The desc list entry size should be whole multiply of 8
* This requirement comes from __iowrite64_copy()
*/
- pr_err("illegal entry size %d\n",
- llq_info->desc_list_entry_size);
+ pr_err("illegal entry size %d\n", llq_info->desc_list_entry_size);
return -EINVAL;
}
@@ -2045,8 +2044,7 @@ void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data)
/* write the aenq doorbell after all AENQ descriptors were read */
mb();
- writel_relaxed((u32)aenq->head,
- dev->reg_bar + ENA_REGS_AENQ_HEAD_DB_OFF);
+ writel_relaxed((u32)aenq->head, dev->reg_bar + ENA_REGS_AENQ_HEAD_DB_OFF);
}
int ena_com_dev_reset(struct ena_com_dev *ena_dev,
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 0349e0305608..148d13cdd1bf 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -2242,7 +2242,7 @@ static int ena_rss_configure(struct ena_adapter *adapter)
rc = ena_rss_init_default(adapter);
if (rc && (rc != -EOPNOTSUPP)) {
netif_err(adapter, ifup, adapter->netdev,
- "Failed to init RSS rc: %d\n", rc);
+ "Failed to init RSS rc: %d\n", rc);
return rc;
}
}
@@ -2315,7 +2315,7 @@ static int ena_create_io_tx_queue(struct ena_adapter *adapter, int qid)
if (rc) {
netif_err(adapter, ifup, adapter->netdev,
"Failed to create I/O TX queue num %d rc: %d\n",
- qid, rc);
+ qid, rc);
return rc;
}
@@ -2464,7 +2464,7 @@ static int create_queues_with_size_backoff(struct ena_adapter *adapter)
* ones due to past queue allocation failures.
*/
set_io_rings_size(adapter, adapter->requested_tx_ring_size,
- adapter->requested_rx_ring_size);
+ adapter->requested_rx_ring_size);
while (1) {
if (ena_xdp_present(adapter)) {
@@ -2505,7 +2505,7 @@ static int create_queues_with_size_backoff(struct ena_adapter *adapter)
if (rc != -ENOMEM) {
netif_err(adapter, ifup, adapter->netdev,
"Queue creation failed with error code %d\n",
- rc);
+ rc);
return rc;
}
@@ -2528,7 +2528,7 @@ static int create_queues_with_size_backoff(struct ena_adapter *adapter)
new_rx_ring_size = cur_rx_ring_size / 2;
if (new_tx_ring_size < ENA_MIN_RING_SIZE ||
- new_rx_ring_size < ENA_MIN_RING_SIZE) {
+ new_rx_ring_size < ENA_MIN_RING_SIZE) {
netif_err(adapter, ifup, adapter->netdev,
"Queue creation failed with the smallest possible queue size of %d for both queues. Not retrying with smaller queues\n",
ENA_MIN_RING_SIZE);
@@ -3087,8 +3087,7 @@ static u16 ena_select_queue(struct net_device *dev, struct sk_buff *skb,
return qid;
}
-static void ena_config_host_info(struct ena_com_dev *ena_dev,
- struct pci_dev *pdev)
+static void ena_config_host_info(struct ena_com_dev *ena_dev, struct pci_dev *pdev)
{
struct ena_admin_host_info *host_info;
int rc;
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 10/14] net: ena: cosmetic: remove unnecessary code
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (8 preceding siblings ...)
2020-05-22 9:09 ` [PATCH V2 net-next 09/14] net: ena: cosmetic: fix line break issues akiyano
@ 2020-05-22 9:09 ` akiyano
2020-05-22 9:09 ` [PATCH V2 net-next 11/14] net: ena: cosmetic: code reorderings akiyano
` (5 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:09 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
1. Remove unused definition of DRV_MODULE_VERSION
2. Remove {} from single line-of-code ifs
3. Remove unnecessary comments from ena_get/set_coalesce()
4. Remove unnecessary extra spaces and newlines
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_ethtool.c | 11 +++--------
drivers/net/ethernet/amazon/ena/ena_netdev.h | 6 ------
2 files changed, 3 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index ca13efa13b63..e340b65af08c 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -206,7 +206,7 @@ int ena_get_sset_count(struct net_device *netdev, int sset)
if (sset != ETH_SS_STATS)
return -EOPNOTSUPP;
- return adapter->num_io_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
+ return adapter->num_io_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
+ ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM;
}
@@ -260,7 +260,6 @@ static void ena_get_strings(struct net_device *netdev, u32 sset, u8 *data)
for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
ena_stats = &ena_stats_global_strings[i];
-
memcpy(data, ena_stats->name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
@@ -307,10 +306,8 @@ static int ena_get_coalesce(struct net_device *net_dev,
struct ena_adapter *adapter = netdev_priv(net_dev);
struct ena_com_dev *ena_dev = adapter->ena_dev;
- if (!ena_com_interrupt_moderation_supported(ena_dev)) {
- /* the devie doesn't support interrupt moderation */
+ if (!ena_com_interrupt_moderation_supported(ena_dev))
return -EOPNOTSUPP;
- }
coalesce->tx_coalesce_usecs =
ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) *
@@ -355,10 +352,8 @@ static int ena_set_coalesce(struct net_device *net_dev,
struct ena_com_dev *ena_dev = adapter->ena_dev;
int rc;
- if (!ena_com_interrupt_moderation_supported(ena_dev)) {
- /* the devie doesn't support interrupt moderation */
+ if (!ena_com_interrupt_moderation_supported(ena_dev))
return -EOPNOTSUPP;
- }
rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev,
coalesce->tx_coalesce_usecs);
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h
index 680099afcccf..5320b916a36b 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.h
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h
@@ -50,12 +50,6 @@
#define DRV_MODULE_GEN_SUBMINOR 0
#define DRV_MODULE_NAME "ena"
-#ifndef DRV_MODULE_GENERATION
-#define DRV_MODULE_GENERATION \
- __stringify(DRV_MODULE_GEN_MAJOR) "." \
- __stringify(DRV_MODULE_GEN_MINOR) "." \
- __stringify(DRV_MODULE_GEN_SUBMINOR) "K"
-#endif
#define DEVICE_NAME "Elastic Network Adapter (ENA)"
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 11/14] net: ena: cosmetic: code reorderings
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (9 preceding siblings ...)
2020-05-22 9:09 ` [PATCH V2 net-next 10/14] net: ena: cosmetic: remove unnecessary code akiyano
@ 2020-05-22 9:09 ` akiyano
2020-05-22 9:09 ` [PATCH V2 net-next 12/14] net: ena: cosmetic: fix spacing issues akiyano
` (4 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:09 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
1. Reorder sanity checks in get_comp_ctxt() to make more sense
2. Reorder variables in ena_com_fill_hash_function() and
ena_calc_io_queue_size() in reverse christmas tree.
3. Move around member initializations.
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 17 +++++++++--------
drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 ++---
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index a513d71576bd..bf3465e5a2e7 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -200,17 +200,17 @@ 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);
return NULL;
}
+ if (unlikely(!queue->comp_ctx)) {
+ pr_err("Completion context is NULL\n");
+ return NULL;
+ }
+
if (unlikely(queue->comp_ctx[command_id].occupied && capture)) {
pr_err("Completion context is occupied\n");
return NULL;
@@ -2266,13 +2266,14 @@ int ena_com_fill_hash_function(struct ena_com_dev *ena_dev,
enum ena_admin_hash_functions func,
const u8 *key, u16 key_len, u32 init_val)
{
- 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;
- struct ena_admin_feature_rss_flow_hash_control *hash_key =
- rss->hash_key;
enum ena_admin_hash_functions old_func;
+ struct ena_rss *rss = &ena_dev->rss;
int rc;
+ hash_key = rss->hash_key;
+
/* Make sure size is a mult of DWs */
if (unlikely(key_len & 0x3))
return -EINVAL;
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 148d13cdd1bf..313e65b17492 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -4121,8 +4121,8 @@ static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx)
*/
static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
- struct ena_com_dev_get_features_ctx get_feat_ctx;
struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
+ struct ena_com_dev_get_features_ctx get_feat_ctx;
struct ena_llq_configurations llq_config;
struct ena_com_dev *ena_dev = NULL;
struct ena_adapter *adapter;
@@ -4233,12 +4233,11 @@ static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
adapter->num_io_queues = max_num_io_queues;
adapter->max_num_io_queues = max_num_io_queues;
+ adapter->last_monitored_tx_qid = 0;
adapter->xdp_first_ring = 0;
adapter->xdp_num_queues = 0;
- adapter->last_monitored_tx_qid = 0;
-
adapter->rx_copybreak = ENA_DEFAULT_RX_COPYBREAK;
adapter->wd_state = wd_state;
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 12/14] net: ena: cosmetic: fix spacing issues
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (10 preceding siblings ...)
2020-05-22 9:09 ` [PATCH V2 net-next 11/14] net: ena: cosmetic: code reorderings akiyano
@ 2020-05-22 9:09 ` akiyano
2020-05-22 9:09 ` [PATCH V2 net-next 13/14] net: ena: cosmetic: minor code changes akiyano
` (3 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:09 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
1. Add leading and trailing spaces to several comments for better
readability
2. Make tabs and spaces uniform in enum defines in ena_admin_defs.h
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_admin_defs.h | 6 +++---
drivers/net/ethernet/amazon/ena/ena_common_defs.h | 2 +-
drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h | 2 +-
drivers/net/ethernet/amazon/ena/ena_regs_defs.h | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_admin_defs.h b/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
index 727836f638ad..336742f6e3c3 100644
--- a/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
@@ -768,8 +768,8 @@ enum ena_admin_os_type {
ENA_ADMIN_OS_DPDK = 3,
ENA_ADMIN_OS_FREEBSD = 4,
ENA_ADMIN_OS_IPXE = 5,
- ENA_ADMIN_OS_ESXI = 6,
- ENA_ADMIN_OS_GROUPS_NUM = 6,
+ ENA_ADMIN_OS_ESXI = 6,
+ ENA_ADMIN_OS_GROUPS_NUM = 6,
};
struct ena_admin_host_info {
@@ -1136,4 +1136,4 @@ struct ena_admin_ena_mmio_req_read_less_resp {
/* aenq_link_change_desc */
#define ENA_ADMIN_AENQ_LINK_CHANGE_DESC_LINK_STATUS_MASK BIT(0)
-#endif /*_ENA_ADMIN_H_ */
+#endif /* _ENA_ADMIN_H_ */
diff --git a/drivers/net/ethernet/amazon/ena/ena_common_defs.h b/drivers/net/ethernet/amazon/ena/ena_common_defs.h
index 23beb7e7ed7b..8a8ded0de9ac 100644
--- a/drivers/net/ethernet/amazon/ena/ena_common_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_common_defs.h
@@ -45,4 +45,4 @@ struct ena_common_mem_addr {
u16 reserved16;
};
-#endif /*_ENA_COMMON_H_ */
+#endif /* _ENA_COMMON_H_ */
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h b/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h
index ee28fb067d8c..d105c9c56192 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h
@@ -414,4 +414,4 @@ struct ena_eth_io_numa_node_cfg_reg {
#define ENA_ETH_IO_NUMA_NODE_CFG_REG_ENABLED_SHIFT 31
#define ENA_ETH_IO_NUMA_NODE_CFG_REG_ENABLED_MASK BIT(31)
-#endif /*_ENA_ETH_IO_H_ */
+#endif /* _ENA_ETH_IO_H_ */
diff --git a/drivers/net/ethernet/amazon/ena/ena_regs_defs.h b/drivers/net/ethernet/amazon/ena/ena_regs_defs.h
index 04fcafcc059c..b514bb1b855d 100644
--- a/drivers/net/ethernet/amazon/ena/ena_regs_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_regs_defs.h
@@ -154,4 +154,4 @@ enum ena_regs_reset_reason_types {
#define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_SHIFT 16
#define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_MASK 0xffff0000
-#endif /*_ENA_REGS_H_ */
+#endif /* _ENA_REGS_H_ */
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 13/14] net: ena: cosmetic: minor code changes
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (11 preceding siblings ...)
2020-05-22 9:09 ` [PATCH V2 net-next 12/14] net: ena: cosmetic: fix spacing issues akiyano
@ 2020-05-22 9:09 ` akiyano
2020-05-22 9:09 ` [PATCH V2 net-next 14/14] net: ena: reduce driver load time akiyano
` (2 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:09 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj
From: Arthur Kiyanovski <akiyano@amazon.com>
1. Use BIT macro instead of shift operator for code clarity
2. Replace multiple flag assignments to a single assignment of multiple
flags in ena_com_add_single_rx_desc()
3. Move ENA_HASH_KEY_SIZE from ena_netdev.h to ena_com.h
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 2 +-
drivers/net/ethernet/amazon/ena/ena_com.h | 2 ++
drivers/net/ethernet/amazon/ena/ena_eth_com.c | 8 ++++----
drivers/net/ethernet/amazon/ena/ena_netdev.h | 2 --
4 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index bf3465e5a2e7..4b1dbedbe921 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -2285,7 +2285,7 @@ int ena_com_fill_hash_function(struct ena_com_dev *ena_dev,
if (unlikely(rc))
return rc;
- if (!((1 << func) & get_resp.u.flow_hash_func.supported_func)) {
+ if (!(BIT(func) & get_resp.u.flow_hash_func.supported_func)) {
pr_err("Flow hash function %d isn't supported\n", func);
return -EOPNOTSUPP;
}
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h
index bd65ae205f8d..325c9a5f677b 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_com.h
@@ -77,6 +77,8 @@
#define ENA_INTR_INITIAL_RX_INTERVAL_USECS 0
#define ENA_DEFAULT_INTR_DELAY_RESOLUTION 1
+#define ENA_HASH_KEY_SIZE 40
+
#define ENA_HW_HINTS_NO_TIMEOUT 0xFFFF
#define ENA_FEATURE_MAX_QUEUE_EXT_VER 1
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.c b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
index a014f514c069..ec8ea25e988d 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
@@ -584,10 +584,10 @@ int ena_com_add_single_rx_desc(struct ena_com_io_sq *io_sq,
desc->length = ena_buf->len;
- desc->ctrl = ENA_ETH_IO_RX_DESC_FIRST_MASK;
- desc->ctrl |= ENA_ETH_IO_RX_DESC_LAST_MASK;
- desc->ctrl |= io_sq->phase & ENA_ETH_IO_RX_DESC_PHASE_MASK;
- desc->ctrl |= ENA_ETH_IO_RX_DESC_COMP_REQ_MASK;
+ desc->ctrl = ENA_ETH_IO_RX_DESC_FIRST_MASK |
+ ENA_ETH_IO_RX_DESC_LAST_MASK |
+ (io_sq->phase & ENA_ETH_IO_RX_DESC_PHASE_MASK) |
+ ENA_ETH_IO_RX_DESC_COMP_REQ_MASK;
desc->req_id = req_id;
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h
index 5320b916a36b..9b3948c7e8a0 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.h
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h
@@ -98,8 +98,6 @@
#define ENA_RX_RSS_TABLE_LOG_SIZE 7
#define ENA_RX_RSS_TABLE_SIZE (1 << ENA_RX_RSS_TABLE_LOG_SIZE)
-#define ENA_HASH_KEY_SIZE 40
-
/* The number of tx packet completions that will be handled each NAPI poll
* cycle is ring_size / ENA_TX_POLL_BUDGET_DIVIDER.
*/
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH V2 net-next 14/14] net: ena: reduce driver load time
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (12 preceding siblings ...)
2020-05-22 9:09 ` [PATCH V2 net-next 13/14] net: ena: cosmetic: minor code changes akiyano
@ 2020-05-22 9:09 ` akiyano
2020-05-22 17:48 ` [PATCH V2 net-next 00/14] ENA features and cosmetic changes Jakub Kicinski
2020-05-22 21:13 ` David Miller
15 siblings, 0 replies; 17+ messages in thread
From: akiyano @ 2020-05-22 9:09 UTC (permalink / raw)
To: davem, netdev
Cc: Arthur Kiyanovski, dwmw, zorik, matua, saeedb, msw, aliguori,
nafea, gtzalik, netanel, alisaidi, benh, ndagan, shayagr,
sameehj, Josh Triplett
From: Arthur Kiyanovski <akiyano@amazon.com>
This commit reduces the driver load time by using usec resolution
instead of msec when polling for hardware state change.
Also add back-off mechanism to handle cases where minimal sleep
time is not enough.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 36 ++++++++++++++------
drivers/net/ethernet/amazon/ena/ena_com.h | 3 ++
drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 ++
drivers/net/ethernet/amazon/ena/ena_netdev.h | 2 ++
4 files changed, 33 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index 4b1dbedbe921..432f143559a1 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -62,7 +62,9 @@
#define ENA_REGS_ADMIN_INTR_MASK 1
-#define ENA_POLL_MS 5
+#define ENA_MIN_ADMIN_POLL_US 100
+
+#define ENA_MAX_ADMIN_POLL_US 5000
/*****************************************************************************/
/*****************************************************************************/
@@ -540,12 +542,20 @@ static int ena_com_comp_status_to_errno(u8 comp_status)
return -EINVAL;
}
+static void ena_delay_exponential_backoff_us(u32 exp, u32 delay_us)
+{
+ delay_us = max_t(u32, ENA_MIN_ADMIN_POLL_US, delay_us);
+ delay_us = min_t(u32, delay_us * (1U << exp), ENA_MAX_ADMIN_POLL_US);
+ usleep_range(delay_us, 2 * delay_us);
+}
+
static int ena_com_wait_and_process_admin_cq_polling(struct ena_comp_ctx *comp_ctx,
struct ena_com_admin_queue *admin_queue)
{
unsigned long flags = 0;
unsigned long timeout;
int ret;
+ u32 exp = 0;
timeout = jiffies + usecs_to_jiffies(admin_queue->completion_timeout);
@@ -569,7 +579,8 @@ static int ena_com_wait_and_process_admin_cq_polling(struct ena_comp_ctx *comp_c
goto err;
}
- msleep(ENA_POLL_MS);
+ ena_delay_exponential_backoff_us(exp++,
+ admin_queue->ena_dev->ena_min_poll_delay_us);
}
if (unlikely(comp_ctx->status == ENA_CMD_ABORTED)) {
@@ -939,12 +950,13 @@ static void ena_com_io_queue_free(struct ena_com_dev *ena_dev,
static int wait_for_reset_state(struct ena_com_dev *ena_dev, u32 timeout,
u16 exp_state)
{
- u32 val, i;
+ u32 val, exp = 0;
+ unsigned long timeout_stamp;
- /* Convert timeout from resolution of 100ms to ENA_POLL_MS */
- timeout = (timeout * 100) / ENA_POLL_MS;
+ /* Convert timeout from resolution of 100ms to us resolution. */
+ timeout_stamp = jiffies + usecs_to_jiffies(100 * 1000 * timeout);
- for (i = 0; i < timeout; i++) {
+ while (1) {
val = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF);
if (unlikely(val == ENA_MMIO_READ_TIMEOUT)) {
@@ -956,10 +968,11 @@ static int wait_for_reset_state(struct ena_com_dev *ena_dev, u32 timeout,
exp_state)
return 0;
- msleep(ENA_POLL_MS);
- }
+ if (time_is_before_jiffies(timeout_stamp))
+ return -ETIME;
- return -ETIME;
+ ena_delay_exponential_backoff_us(exp++, ena_dev->ena_min_poll_delay_us);
+ }
}
static bool ena_com_check_supported_feature_id(struct ena_com_dev *ena_dev,
@@ -1436,11 +1449,13 @@ void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev)
{
struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
unsigned long flags = 0;
+ u32 exp = 0;
spin_lock_irqsave(&admin_queue->q_lock, flags);
while (atomic_read(&admin_queue->outstanding_cmds) != 0) {
spin_unlock_irqrestore(&admin_queue->q_lock, flags);
- msleep(ENA_POLL_MS);
+ ena_delay_exponential_backoff_us(exp++,
+ ena_dev->ena_min_poll_delay_us);
spin_lock_irqsave(&admin_queue->q_lock, flags);
}
spin_unlock_irqrestore(&admin_queue->q_lock, flags);
@@ -1788,6 +1803,7 @@ int ena_com_admin_init(struct ena_com_dev *ena_dev,
if (ret)
goto error;
+ admin_queue->ena_dev = ena_dev;
admin_queue->running_state = true;
return 0;
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h
index 325c9a5f677b..bc187adf54e4 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_com.h
@@ -239,6 +239,7 @@ struct ena_com_stats_admin {
struct ena_com_admin_queue {
void *q_dmadev;
+ struct ena_com_dev *ena_dev;
spinlock_t q_lock; /* spinlock for the admin queue */
struct ena_comp_ctx *comp_ctx;
@@ -351,6 +352,8 @@ struct ena_com_dev {
struct ena_intr_moder_entry *intr_moder_tbl;
struct ena_com_llq_info llq_info;
+
+ u32 ena_min_poll_delay_us;
};
struct ena_com_dev_get_features_ctx {
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 313e65b17492..46865d5bd7e7 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -4166,6 +4166,8 @@ static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_free_region;
}
+ ena_dev->ena_min_poll_delay_us = ENA_ADMIN_POLL_DELAY_US;
+
ena_dev->dmadev = &pdev->dev;
rc = ena_device_init(ena_dev, pdev, &get_feat_ctx, &wd_state);
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h
index 9b3948c7e8a0..ba030d260940 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.h
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h
@@ -129,6 +129,8 @@
#define ENA_IO_IRQ_FIRST_IDX 1
#define ENA_IO_IRQ_IDX(q) (ENA_IO_IRQ_FIRST_IDX + (q))
+#define ENA_ADMIN_POLL_DELAY_US 100
+
/* ENA device should send keep alive msg every 1 sec.
* We wait for 6 sec just to be on the safe side.
*/
--
2.23.1
^ permalink raw reply related [flat|nested] 17+ messages in thread* Re: [PATCH V2 net-next 00/14] ENA features and cosmetic changes
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (13 preceding siblings ...)
2020-05-22 9:09 ` [PATCH V2 net-next 14/14] net: ena: reduce driver load time akiyano
@ 2020-05-22 17:48 ` Jakub Kicinski
2020-05-22 21:13 ` David Miller
15 siblings, 0 replies; 17+ messages in thread
From: Jakub Kicinski @ 2020-05-22 17:48 UTC (permalink / raw)
To: akiyano
Cc: davem, netdev, dwmw, zorik, matua, saeedb, msw, aliguori, nafea,
gtzalik, netanel, alisaidi, benh, ndagan, shayagr, sameehj
On Fri, 22 May 2020 12:08:51 +0300 akiyano@amazon.com wrote:
> From: Arthur Kiyanovski <akiyano@amazon.com>
>
> Diff from V1 of this patchset:
> Removed error prints patch
>
> This patchset includes:
> 1. new rx offset feature
> 2. reduction of the driver load time
> 3. multiple cosmetic changes to the code
Acked-by: Jakub Kicinski <kuba@kernel.org>
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH V2 net-next 00/14] ENA features and cosmetic changes
2020-05-22 9:08 [PATCH V2 net-next 00/14] ENA features and cosmetic changes akiyano
` (14 preceding siblings ...)
2020-05-22 17:48 ` [PATCH V2 net-next 00/14] ENA features and cosmetic changes Jakub Kicinski
@ 2020-05-22 21:13 ` David Miller
15 siblings, 0 replies; 17+ messages in thread
From: David Miller @ 2020-05-22 21:13 UTC (permalink / raw)
To: akiyano
Cc: netdev, dwmw, zorik, matua, saeedb, msw, aliguori, nafea,
gtzalik, netanel, alisaidi, benh, ndagan, shayagr, sameehj
From: <akiyano@amazon.com>
Date: Fri, 22 May 2020 12:08:51 +0300
> From: Arthur Kiyanovski <akiyano@amazon.com>
>
> Diff from V1 of this patchset:
> Removed error prints patch
>
> This patchset includes:
> 1. new rx offset feature
> 2. reduction of the driver load time
> 3. multiple cosmetic changes to the code
Series applied, thanks.
^ permalink raw reply [flat|nested] 17+ messages in thread