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Commit c4f084ed authored by David S. Miller's avatar David S. Miller
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Merge branch 'Update-license-and-polish-ENA-driver-code' 

Shay Agroskin says:

====================
Update license and polish ENA driver code

This series adds the following:
- Change driver's license into SPDX format
- Capitalize all log prints in ENA driver
- Fix issues raised by static checkers
- Improve code readability by adding functions, fix spelling
  mistakes etc.
- Update driver's documentation

Changed from previous version:
v1->v2: dropped patch that transforms pr_* log prints into dev_* prints
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents b696db59 c452f375
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Showing with 254 additions and 569 deletions
Documentation/networking/device_drivers/ethernet/amazon/ena.rst
View file @ c4f084ed
......@@ -39,16 +39,6 @@ debug logs.
Some of the ENA devices support a working mode called Low-latency
Queue (LLQ), which saves several more microseconds.
Supported PCI vendor ID/device IDs
==================================
========= =======================
1d0f:0ec2 ENA PF
1d0f:1ec2 ENA PF with LLQ support
1d0f:ec20 ENA VF
1d0f:ec21 ENA VF with LLQ support
========= =======================
ENA Source Code Directory Structure
===================================
......@@ -212,20 +202,11 @@ In adaptive interrupt moderation mode the interrupt delay value is
updated by the driver dynamically and adjusted every NAPI cycle
according to the traffic nature.
By default ENA driver applies adaptive coalescing on Rx traffic and
conventional coalescing on Tx traffic.
Adaptive coalescing can be switched on/off through ethtool(8)
adaptive_rx on|off parameter.
The driver chooses interrupt delay value according to the number of
bytes and packets received between interrupt unmasking and interrupt
posting. The driver uses interrupt delay table that subdivides the
range of received bytes/packets into 5 levels and assigns interrupt
delay value to each level.
The user can enable/disable adaptive moderation, modify the interrupt
delay table and restore its default values through sysfs.
More information about Adaptive Interrupt Moderation (DIM) can be found in
Documentation/networking/net_dim.rst
RX copybreak
============
......@@ -274,7 +255,7 @@ RSS
inputs for hash functions.
- The driver configures RSS settings using the AQ SetFeature command
(ENA_ADMIN_RSS_HASH_FUNCTION, ENA_ADMIN_RSS_HASH_INPUT and
ENA_ADMIN_RSS_REDIRECTION_TABLE_CONFIG properties).
ENA_ADMIN_RSS_INDIRECTION_TABLE_CONFIG properties).
- If the NETIF_F_RXHASH flag is set, the 32-bit result of the hash
function delivered in the Rx CQ descriptor is set in the received
SKB.
......
drivers/net/ethernet/amazon/ena/ena_admin_defs.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 - 2016 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef _ENA_ADMIN_H_
#define _ENA_ADMIN_H_
#define ENA_ADMIN_RSS_KEY_PARTS 10
enum ena_admin_aq_opcode {
ENA_ADMIN_CREATE_SQ = 1,
......@@ -55,6 +29,7 @@ enum ena_admin_aq_completion_status {
ENA_ADMIN_RESOURCE_BUSY = 7,
};
/* subcommands for the set/get feature admin commands */
enum ena_admin_aq_feature_id {
ENA_ADMIN_DEVICE_ATTRIBUTES = 1,
ENA_ADMIN_MAX_QUEUES_NUM = 2,
......@@ -63,7 +38,7 @@ enum ena_admin_aq_feature_id {
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,
ENA_ADMIN_RSS_INDIRECTION_TABLE_CONFIG = 12,
ENA_ADMIN_MTU = 14,
ENA_ADMIN_RSS_HASH_INPUT = 18,
ENA_ADMIN_INTERRUPT_MODERATION = 20,
......@@ -240,8 +215,8 @@ struct ena_admin_aq_create_sq_cmd {
*/
u8 sq_caps_3;
/* associated completion queue id. This CQ must be created prior to
* SQ creation
/* associated completion queue id. This CQ must be created prior to SQ
* creation
*/
u16 cq_idx;
......@@ -475,7 +450,9 @@ struct ena_admin_device_attr_feature_desc {
u32 device_version;
/* bitmap of ena_admin_aq_feature_id */
/* bitmap of ena_admin_aq_feature_id, which represents supported
* subcommands for the set/get feature admin commands.
*/
u32 supported_features;
u32 reserved3;
......@@ -561,32 +538,30 @@ struct ena_admin_feature_llq_desc {
u32 max_llq_depth;
/* specify the header locations the device supports. bitfield of
* enum ena_admin_llq_header_location.
/* specify the header locations the device supports. bitfield of enum
* ena_admin_llq_header_location.
*/
u16 header_location_ctrl_supported;
/* the header location the driver selected to use. */
u16 header_location_ctrl_enabled;
/* if inline header is specified - this is the size of descriptor
* list entry. If header in a separate ring is specified - this is
* the size of header ring entry. bitfield of enum
* ena_admin_llq_ring_entry_size. specify the entry sizes the device
* supports
/* if inline header is specified - this is the size of descriptor list
* entry. If header in a separate ring is specified - this is the size
* of header ring entry. bitfield of enum ena_admin_llq_ring_entry_size.
* specify the entry sizes the device supports
*/
u16 entry_size_ctrl_supported;
/* the entry size the driver selected to use. */
u16 entry_size_ctrl_enabled;
/* valid only if inline header is specified. First entry associated
* with the packet includes descriptors and header. Rest of the
* entries occupied by descriptors. This parameter defines the max
* number of descriptors precedding the header in the first entry.
* The field is bitfield of enum
* ena_admin_llq_num_descs_before_header and specify the values the
* device supports
/* valid only if inline header is specified. First entry associated with
* the packet includes descriptors and header. Rest of the entries
* occupied by descriptors. This parameter defines the max number of
* descriptors precedding the header in the first entry. The field is
* bitfield of enum ena_admin_llq_num_descs_before_header and specify
* the values the device supports
*/
u16 desc_num_before_header_supported;
......@@ -629,8 +604,8 @@ struct ena_admin_queue_ext_feature_fields {
u32 max_tx_header_size;
/* Maximum Descriptors number, including meta descriptor, allowed for
* a single Tx packet
/* Maximum Descriptors number, including meta descriptor, allowed for a
* single Tx packet
*/
u16 max_per_packet_tx_descs;
......@@ -653,8 +628,8 @@ struct ena_admin_queue_feature_desc {
u32 max_header_size;
/* Maximum Descriptors number, including meta descriptor, allowed for
* a single Tx packet
/* Maximum Descriptors number, including meta descriptor, allowed for a
* single Tx packet
*/
u16 max_packet_tx_descs;
......@@ -742,11 +717,11 @@ enum ena_admin_hash_functions {
};
struct ena_admin_feature_rss_flow_hash_control {
u32 keys_num;
u32 key_parts;
u32 reserved;
u32 key[10];
u32 key[ENA_ADMIN_RSS_KEY_PARTS];
};
struct ena_admin_feature_rss_flow_hash_function {
......@@ -1042,7 +1017,7 @@ struct ena_admin_set_feat_resp {
struct ena_admin_aenq_common_desc {
u16 group;
u16 syndrom;
u16 syndrome;
/* 0 : phase
* 7:1 : reserved - MBZ
......@@ -1066,7 +1041,7 @@ enum ena_admin_aenq_group {
ENA_ADMIN_AENQ_GROUPS_NUM = 5,
};
enum ena_admin_aenq_notification_syndrom {
enum ena_admin_aenq_notification_syndrome {
ENA_ADMIN_SUSPEND = 0,
ENA_ADMIN_RESUME = 1,
ENA_ADMIN_UPDATE_HINTS = 2,
......
drivers/net/ethernet/amazon/ena/ena_com.c
View file @ c4f084ed
This diff is collapsed.
drivers/net/ethernet/amazon/ena/ena_com.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef ENA_COM
......@@ -536,7 +509,7 @@ void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev);
* 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);
void ena_com_aenq_intr_handler(struct ena_com_dev *ena_dev, void *data);
/* ena_com_abort_admin_commands - Abort all the outstanding admin commands.
* @ena_dev: ENA communication layer struct
......
drivers/net/ethernet/amazon/ena/ena_common_defs.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 - 2016 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef _ENA_COMMON_H_
#define _ENA_COMMON_H_
......
drivers/net/ethernet/amazon/ena/ena_eth_com.c
View file @ c4f084ed
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright 2015 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#include "ena_eth_com.h"
......@@ -45,7 +18,8 @@ static struct ena_eth_io_rx_cdesc_base *ena_com_get_next_rx_cdesc(
cdesc = (struct ena_eth_io_rx_cdesc_base *)(io_cq->cdesc_addr.virt_addr
+ (head_masked * io_cq->cdesc_entry_size_in_bytes));
desc_phase = (READ_ONCE(cdesc->status) & ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK) >>
desc_phase = (READ_ONCE(cdesc->status) &
ENA_ETH_IO_RX_CDESC_BASE_PHASE_MASK) >>
ENA_ETH_IO_RX_CDESC_BASE_PHASE_SHIFT;
if (desc_phase != expected_phase)
......@@ -89,7 +63,7 @@ static int ena_com_write_bounce_buffer_to_dev(struct ena_com_io_sq *io_sq,
}
io_sq->entries_in_tx_burst_left--;
pr_debug("decreasing entries_in_tx_burst_left of queue %d to %d\n",
pr_debug("Decreasing entries_in_tx_burst_left of queue %d to %d\n",
io_sq->qid, io_sq->entries_in_tx_burst_left);
}
......@@ -128,12 +102,12 @@ static int ena_com_write_header_to_bounce(struct ena_com_io_sq *io_sq,
if (unlikely((header_offset + header_len) >
llq_info->desc_list_entry_size)) {
pr_err("trying to write header larger than llq entry can accommodate\n");
pr_err("Trying to write header larger than llq entry can accommodate\n");
return -EFAULT;
}
if (unlikely(!bounce_buffer)) {
pr_err("bounce buffer is NULL\n");
pr_err("Bounce buffer is NULL\n");
return -EFAULT;
}
......@@ -151,7 +125,7 @@ static void *get_sq_desc_llq(struct ena_com_io_sq *io_sq)
bounce_buffer = pkt_ctrl->curr_bounce_buf;
if (unlikely(!bounce_buffer)) {
pr_err("bounce buffer is NULL\n");
pr_err("Bounce buffer is NULL\n");
return NULL;
}
......@@ -262,7 +236,8 @@ static u16 ena_com_cdesc_rx_pkt_get(struct ena_com_io_cq *io_cq,
ena_com_cq_inc_head(io_cq);
count++;
last = (READ_ONCE(cdesc->status) & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK) >>
last = (READ_ONCE(cdesc->status) &
ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK) >>
ENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT;
} while (!last);
......@@ -275,7 +250,7 @@ static u16 ena_com_cdesc_rx_pkt_get(struct ena_com_io_cq *io_cq,
io_cq->cur_rx_pkt_cdesc_count = 0;
io_cq->cur_rx_pkt_cdesc_start_idx = head_masked;
pr_debug("ena q_id: %d packets were completed. first desc idx %u descs# %d\n",
pr_debug("ENA q_id: %d packets were completed. first desc idx %u descs# %d\n",
io_cq->qid, *first_cdesc_idx, count);
} else {
io_cq->cur_rx_pkt_cdesc_count += count;
......@@ -291,6 +266,9 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
struct ena_eth_io_tx_meta_desc *meta_desc = NULL;
meta_desc = get_sq_desc(io_sq);
if (unlikely(!meta_desc))
return -EFAULT;
memset(meta_desc, 0x0, sizeof(struct ena_eth_io_tx_meta_desc));
meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_DESC_MASK;
......@@ -298,7 +276,7 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK;
/* bits 0-9 of the mss */
meta_desc->word2 |= (ena_meta->mss <<
meta_desc->word2 |= ((u32)ena_meta->mss <<
ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT) &
ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK;
/* bits 10-13 of the mss */
......@@ -308,7 +286,7 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
/* Extended meta desc */
meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK;
meta_desc->len_ctrl |= (io_sq->phase <<
meta_desc->len_ctrl |= ((u32)io_sq->phase <<
ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT) &
ENA_ETH_IO_TX_META_DESC_PHASE_MASK;
......@@ -321,7 +299,7 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT) &
ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK;
meta_desc->word2 |= (ena_meta->l4_hdr_len <<
meta_desc->word2 |= ((u32)ena_meta->l4_hdr_len <<
ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT) &
ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK;
......@@ -379,7 +357,7 @@ static void ena_com_rx_set_flags(struct ena_com_rx_ctx *ena_rx_ctx,
(cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK) >>
ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_SHIFT;
pr_debug("ena_rx_ctx->l3_proto %d ena_rx_ctx->l4_proto %d\nena_rx_ctx->l3_csum_err %d ena_rx_ctx->l4_csum_err %d\nhash frag %d frag: %d cdesc_status: %x\n",
pr_debug("l3_proto %d l4_proto %d l3_csum_err %d l4_csum_err %d hash %d frag %d cdesc_status %x\n",
ena_rx_ctx->l3_proto, ena_rx_ctx->l4_proto,
ena_rx_ctx->l3_csum_err, ena_rx_ctx->l4_csum_err,
ena_rx_ctx->hash, ena_rx_ctx->frag, cdesc->status);
......@@ -412,7 +390,7 @@ int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
}
if (unlikely(header_len > io_sq->tx_max_header_size)) {
pr_err("header size is too large %d max header: %d\n",
pr_err("Header size is too large %d max header: %d\n",
header_len, io_sq->tx_max_header_size);
return -EINVAL;
}
......@@ -427,7 +405,7 @@ int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
rc = ena_com_create_and_store_tx_meta_desc(io_sq, ena_tx_ctx, &have_meta);
if (unlikely(rc)) {
pr_err("failed to create and store tx meta desc\n");
pr_err("Failed to create and store tx meta desc\n");
return rc;
}
......@@ -447,16 +425,16 @@ int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
if (!have_meta)
desc->len_ctrl |= ENA_ETH_IO_TX_DESC_FIRST_MASK;
desc->buff_addr_hi_hdr_sz |= (header_len <<
desc->buff_addr_hi_hdr_sz |= ((u32)header_len <<
ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT) &
ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK;
desc->len_ctrl |= (io_sq->phase << ENA_ETH_IO_TX_DESC_PHASE_SHIFT) &
desc->len_ctrl |= ((u32)io_sq->phase << ENA_ETH_IO_TX_DESC_PHASE_SHIFT) &
ENA_ETH_IO_TX_DESC_PHASE_MASK;
desc->len_ctrl |= ENA_ETH_IO_TX_DESC_COMP_REQ_MASK;
/* Bits 0-9 */
desc->meta_ctrl |= (ena_tx_ctx->req_id <<
desc->meta_ctrl |= ((u32)ena_tx_ctx->req_id <<
ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT) &
ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK;
......@@ -502,7 +480,7 @@ int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
memset(desc, 0x0, sizeof(struct ena_eth_io_tx_desc));
desc->len_ctrl |= (io_sq->phase <<
desc->len_ctrl |= ((u32)io_sq->phase <<
ENA_ETH_IO_TX_DESC_PHASE_SHIFT) &
ENA_ETH_IO_TX_DESC_PHASE_MASK;
}
......@@ -550,7 +528,7 @@ int ena_com_rx_pkt(struct ena_com_io_cq *io_cq,
return 0;
}
pr_debug("fetch rx packet: queue %d completed desc: %d\n", io_cq->qid,
pr_debug("Fetch rx packet: queue %d completed desc: %d\n", io_cq->qid,
nb_hw_desc);
if (unlikely(nb_hw_desc > ena_rx_ctx->max_bufs)) {
......
drivers/net/ethernet/amazon/ena/ena_eth_com.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef ENA_ETH_COM_H_
......@@ -167,7 +140,7 @@ static inline bool ena_com_is_doorbell_needed(struct ena_com_io_sq *io_sq,
llq_info->descs_per_entry);
}
pr_debug("queue: %d num_descs: %d num_entries_needed: %d\n", io_sq->qid,
pr_debug("Queue: %d num_descs: %d num_entries_needed: %d\n", io_sq->qid,
num_descs, num_entries_needed);
return num_entries_needed > io_sq->entries_in_tx_burst_left;
......@@ -178,13 +151,13 @@ static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq)
u16 max_entries_in_tx_burst = io_sq->llq_info.max_entries_in_tx_burst;
u16 tail = io_sq->tail;
pr_debug("write submission queue doorbell for queue: %d tail: %d\n",
pr_debug("Write submission queue doorbell for queue: %d tail: %d\n",
io_sq->qid, tail);
writel(tail, io_sq->db_addr);
if (is_llq_max_tx_burst_exists(io_sq)) {
pr_debug("reset available entries in tx burst for queue %d to %d\n",
pr_debug("Reset available entries in tx burst for queue %d to %d\n",
io_sq->qid, max_entries_in_tx_burst);
io_sq->entries_in_tx_burst_left = max_entries_in_tx_burst;
}
......
drivers/net/ethernet/amazon/ena/ena_eth_io_defs.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 - 2016 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef _ENA_ETH_IO_H_
#define _ENA_ETH_IO_H_
......
drivers/net/ethernet/amazon/ena/ena_ethtool.c
View file @ c4f084ed
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright 2015 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#include <linux/pci.h>
......@@ -966,7 +939,7 @@ static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
GFP_ATOMIC);
if (!strings_buf) {
netif_err(adapter, drv, netdev,
"failed to alloc strings_buf\n");
"Failed to allocate strings_buf\n");
return;
}
......
drivers/net/ethernet/amazon/ena/ena_netdev.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef ENA_H
......
drivers/net/ethernet/amazon/ena/ena_pci_id_tbl.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef ENA_PCI_ID_TBL_H_
......
drivers/net/ethernet/amazon/ena/ena_regs_defs.h
View file @ c4f084ed
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright 2015 - 2016 Amazon.com, Inc. or its affiliates.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef _ENA_REGS_H_
#define _ENA_REGS_H_
......
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