-/*-
-* BSD LICENSE
-*
-* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
-* All rights reserved.
-*
-* 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.
-* * Neither the name of copyright holder nor the names of its
-* contributors may be used to endorse or promote products derived
-* from this software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates.
+ * All rights reserved.
+ */
#ifndef ENA_COM
#define ENA_COM
#include "ena_plat.h"
-#include "ena_common_defs.h"
-#include "ena_admin_defs.h"
-#include "ena_eth_io_defs.h"
-#include "ena_regs_defs.h"
-#if defined(__linux__) && !defined(__KERNEL__)
-#include <rte_lcore.h>
-#include <rte_spinlock.h>
-#define __iomem
-#endif
#define ENA_MAX_NUM_IO_QUEUES 128U
/* We need to queues for each IO (on for Tx and one for Rx) */
#define ENA_INTR_INITIAL_RX_INTERVAL_USECS 4
#define ENA_INTR_DELAY_OLD_VALUE_WEIGHT 6
#define ENA_INTR_DELAY_NEW_VALUE_WEIGHT 4
+#define ENA_INTR_MODER_LEVEL_STRIDE 1
+#define ENA_INTR_BYTE_COUNT_NOT_SUPPORTED 0xFFFFFF
+
+#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_MAX_NUM_OF_LEVELS,
};
+struct ena_llq_configurations {
+ enum ena_admin_llq_header_location llq_header_location;
+ enum ena_admin_llq_ring_entry_size llq_ring_entry_size;
+ enum ena_admin_llq_stride_ctrl llq_stride_ctrl;
+ enum ena_admin_llq_num_descs_before_header llq_num_decs_before_header;
+ u16 llq_ring_entry_size_value;
+};
+
struct ena_intr_moder_entry {
unsigned int intr_moder_interval;
unsigned int pkts_per_interval;
};
struct ena_com_io_desc_addr {
- void __iomem *pbuf_dev_addr; /* LLQ address */
- void *virt_addr;
+ u8 __iomem *pbuf_dev_addr; /* LLQ address */
+ u8 *virt_addr;
dma_addr_t phys_addr;
ena_mem_handle_t mem_handle;
};
u16 mss;
u16 l3_hdr_len;
u16 l3_hdr_offset;
- u16 l3_outer_hdr_len; /* In words */
- u16 l3_outer_hdr_offset;
u16 l4_hdr_len; /* In words */
};
+struct ena_com_llq_info {
+ u16 header_location_ctrl;
+ u16 desc_stride_ctrl;
+ u16 desc_list_entry_size_ctrl;
+ u16 desc_list_entry_size;
+ u16 descs_num_before_header;
+ u16 descs_per_entry;
+ u16 max_entries_in_tx_burst;
+};
+
struct ena_com_io_cq {
struct ena_com_io_desc_addr cdesc_addr;
-
- u32 __iomem *db_addr;
+ void *bus;
/* Interrupt unmask register */
u32 __iomem *unmask_reg;
/* The completion queue head doorbell register */
- uint32_t __iomem *cq_head_db_reg;
+ u32 __iomem *cq_head_db_reg;
+
+ /* numa configuration register (for TPH) */
+ u32 __iomem *numa_node_cfg_reg;
/* The value to write to the above register to unmask
* the interrupt of this queue
} ____cacheline_aligned;
+struct ena_com_io_bounce_buffer_control {
+ u8 *base_buffer;
+ u16 next_to_use;
+ u16 buffer_size;
+ u16 buffers_num; /* Must be a power of 2 */
+};
+
+/* This struct is to keep tracking the current location of the next llq entry */
+struct ena_com_llq_pkt_ctrl {
+ u8 *curr_bounce_buf;
+ u16 idx;
+ u16 descs_left_in_line;
+};
+
struct ena_com_io_sq {
struct ena_com_io_desc_addr desc_addr;
+ void *bus;
u32 __iomem *db_addr;
u8 __iomem *header_addr;
u32 msix_vector;
struct ena_com_tx_meta cached_tx_meta;
+ struct ena_com_llq_info llq_info;
+ struct ena_com_llq_pkt_ctrl llq_buf_ctrl;
+ struct ena_com_io_bounce_buffer_control bounce_buf_ctrl;
u16 q_depth;
u16 qid;
u16 idx;
u16 tail;
u16 next_to_comp;
- u16 tx_max_header_size;
+ u16 llq_last_copy_tail;
+ u32 tx_max_header_size;
u8 phase;
u8 desc_entry_size;
u8 dma_addr_bits;
+ u16 entries_in_tx_burst_left;
} ____cacheline_aligned;
struct ena_com_admin_cq {
struct ena_com_admin_queue {
void *q_dmadev;
+ void *bus;
ena_spinlock_t q_lock; /* spinlock for the admin queue */
+
struct ena_comp_ctx *comp_ctx;
+ u32 completion_timeout;
u16 q_depth;
struct ena_com_admin_cq cq;
struct ena_com_admin_sq sq;
/* Indicate if the admin queue should poll for completion */
bool polling;
+ /* Define if fallback to polling mode should occur */
+ bool auto_polling;
+
u16 curr_cmd_id;
/* Indicate that the ena was initialized and can
struct ena_admin_ena_mmio_req_read_less_resp *read_resp;
dma_addr_t read_resp_dma_addr;
ena_mem_handle_t read_resp_mem_handle;
+ u32 reg_read_to; /* in us */
u16 seq_num;
bool readless_supported;
/* spin lock to ensure a single outstanding read */
ena_mem_handle_t host_info_dma_handle;
};
+struct ena_extra_properties_strings {
+ u8 *virt_addr;
+ dma_addr_t dma_addr;
+ ena_mem_handle_t dma_handle;
+ u32 size;
+};
+
/* Each ena_dev is a PCI function. */
struct ena_com_dev {
struct ena_com_admin_queue admin_queue;
struct ena_com_aenq aenq;
struct ena_com_io_cq io_cq_queues[ENA_TOTAL_NUM_QUEUES];
struct ena_com_io_sq io_sq_queues[ENA_TOTAL_NUM_QUEUES];
- void __iomem *reg_bar;
+ u8 __iomem *reg_bar;
void __iomem *mem_bar;
void *dmadev;
+ void *bus;
enum ena_admin_placement_policy_type tx_mem_queue_type;
-
+ u32 tx_max_header_size;
u16 stats_func; /* Selected function for extended statistic dump */
u16 stats_queue; /* Selected queue for extended statistic dump */
- u16 tx_max_header_size;
-
struct ena_com_mmio_read mmio_read;
struct ena_rss rss;
u16 intr_delay_resolution;
u32 intr_moder_tx_interval;
struct ena_intr_moder_entry *intr_moder_tbl;
+
+ struct ena_com_llq_info llq_info;
+ struct ena_extra_properties_strings extra_properties_strings;
};
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;
+ struct ena_admin_ena_hw_hints hw_hints;
+ struct ena_admin_feature_llq_desc llq;
+ struct ena_admin_feature_rss_ind_table ind_table;
+};
+
+struct ena_com_create_io_ctx {
+ enum ena_admin_placement_policy_type mem_queue_type;
+ enum queue_direction direction;
+ int numa_node;
+ u32 msix_vector;
+ u16 queue_size;
+ u16 qid;
};
typedef void (*ena_aenq_handler)(void *data,
/* ena_com_set_mmio_read_mode - Enable/disable the mmio reg read mechanism
* @ena_dev: ENA communication layer struct
- * @realess_supported: readless mode (enable/disable)
+ * @readless_supported: readless mode (enable/disable)
*/
void ena_com_set_mmio_read_mode(struct ena_com_dev *ena_dev,
bool readless_supported);
/* ena_com_admin_init - Init the admin and the async queues
* @ena_dev: ENA communication layer struct
* @aenq_handlers: Those handlers to be called upon event.
- * @init_spinlock: Indicate if this method should init the admin spinlock or
- * the spinlock was init before (for example, in a case of FLR).
*
* Initialize the admin submission and completion queues.
* Initialize the asynchronous events notification queues.
* @return - 0 on success, negative value on failure.
*/
int ena_com_admin_init(struct ena_com_dev *ena_dev,
- struct ena_aenq_handlers *aenq_handlers,
- bool init_spinlock);
+ struct ena_aenq_handlers *aenq_handlers);
/* ena_com_admin_destroy - Destroy the admin and the async events queues.
* @ena_dev: ENA communication layer struct
/* ena_com_dev_reset - Perform device FLR to the device.
* @ena_dev: ENA communication layer struct
+ * @reset_reason: Specify what is the trigger for the reset in case of an error.
*
* @return - 0 on success, negative value on failure.
*/
-int ena_com_dev_reset(struct ena_com_dev *ena_dev);
+int ena_com_dev_reset(struct ena_com_dev *ena_dev,
+ enum ena_regs_reset_reason_types reset_reason);
/* ena_com_create_io_queue - Create io queue.
* @ena_dev: ENA communication layer struct
- * @qid - the caller virtual queue id.
- * @direction - the queue direction (Rx/Tx)
- * @mem_queue_type - Indicate if this queue is LLQ or regular queue
- * (relevant only for Tx queue)
- * @msix_vector - MSI-X vector
- * @queue_size - queue size
+ * @ctx - create context structure
*
- * Create the submission and the completion queues for queue id - qid.
+ * Create the submission and the completion queues.
*
* @return - 0 on success, negative value on failure.
*/
-int ena_com_create_io_queue(struct ena_com_dev *ena_dev, u16 qid,
- enum queue_direction direction,
- enum ena_admin_placement_policy_type mem_queue_type,
- u32 msix_vector,
- u16 queue_size);
+int ena_com_create_io_queue(struct ena_com_dev *ena_dev,
+ struct ena_com_create_io_ctx *ctx);
-/* ena_com_admin_destroy - Destroy IO queue with the queue id - qid.
+/* ena_com_destroy_io_queue - Destroy IO queue with the queue id - qid.
* @ena_dev: ENA communication layer struct
+ * @qid - the caller virtual queue id.
*/
void ena_com_destroy_io_queue(struct ena_com_dev *ena_dev, u16 qid);
*/
void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling);
-/* ena_com_set_admin_polling_mode - Get the admin completion queue polling mode
+/* ena_com_get_admin_polling_mode - Get the admin completion queue polling mode
* @ena_dev: ENA communication layer struct
*
* Get the admin completion mode.
*
* @return state
*/
-bool ena_com_get_ena_admin_polling_mode(struct ena_com_dev *ena_dev);
+bool ena_com_get_admin_polling_mode(struct ena_com_dev *ena_dev);
+
+/* ena_com_set_admin_auto_polling_mode - Enable autoswitch to polling mode
+ * @ena_dev: ENA communication layer struct
+ * @polling: Enable/Disable polling mode
+ *
+ * Set the autopolling mode.
+ * If autopolling is on:
+ * In case of missing interrupt when data is available switch to polling.
+ */
+void ena_com_set_admin_auto_polling_mode(struct ena_com_dev *ena_dev,
+ bool polling);
/* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler
* @ena_dev: ENA communication layer struct
* @ena_dev: ENA communication layer struct
*
* This method aborts all the outstanding admin commands.
- * The called should then call ena_com_wait_for_abort_completion to make sure
+ * The caller should then call ena_com_wait_for_abort_completion to make sure
* all the commands were completed.
*/
void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev);
int ena_com_get_link_params(struct ena_com_dev *ena_dev,
struct ena_admin_get_feat_resp *resp);
+/* ena_com_extra_properties_strings_init - Initialize the extra properties strings buffer.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Initialize the extra properties strings buffer.
+ */
+int ena_com_extra_properties_strings_init(struct ena_com_dev *ena_dev);
+
+/* ena_com_delete_extra_properties_strings - Free the extra properties strings buffer.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Free the allocated extra properties strings buffer.
+ */
+void ena_com_delete_extra_properties_strings(struct ena_com_dev *ena_dev);
+
+/* ena_com_get_extra_properties_flags - Retrieve extra properties flags.
+ * @ena_dev: ENA communication layer struct
+ * @resp: Extra properties flags.
+ *
+ * Retrieve the extra properties flags.
+ *
+ * @return - 0 on Success negative value otherwise.
+ */
+int ena_com_get_extra_properties_flags(struct ena_com_dev *ena_dev,
+ struct ena_admin_get_feat_resp *resp);
+
/* ena_com_get_dma_width - Retrieve physical dma address width the device
* supports.
* @ena_dev: ENA communication layer struct
*
* @return: 0 on Success and negative value otherwise.
*/
-int
-ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,
- struct ena_com_dev_get_features_ctx *get_feat_ctx);
+int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,
+ struct ena_com_dev_get_features_ctx *get_feat_ctx);
/* ena_com_get_dev_basic_stats - Get device basic statistics
* @ena_dev: ENA communication layer struct
*
* @return: 0 on Success and negative value otherwise.
*/
-int
-ena_com_get_offload_settings(struct ena_com_dev *ena_dev,
- struct ena_admin_feature_offload_desc *offload);
+int ena_com_get_offload_settings(struct ena_com_dev *ena_dev,
+ struct ena_admin_feature_offload_desc *offload);
/* ena_com_rss_init - Init RSS
* @ena_dev: ENA communication layer struct
* @ena_dev: ENA communication layer struct
*
* Free all the RSS/RFS resources.
- *
- * @return: 0 on Success and negative value otherwise.
*/
-int ena_com_rss_destroy(struct ena_com_dev *ena_dev);
+void ena_com_rss_destroy(struct ena_com_dev *ena_dev);
/* ena_com_fill_hash_function - Fill RSS hash function
* @ena_dev: ENA communication layer struct
*
* Retrieve the RSS indirection table from the device.
*
- * @note: If the caller called ena_com_indirect_table_fill_entry but didn't
- * flash it to the device, the new configuration will be lost.
+ * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flash
+ * it to the device, the new configuration will be lost.
*
* @return: 0 on Success and negative value otherwise.
*/
int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl);
-/* ena_com_allocate_host_attribute - Allocate host attributes resources.
+/* ena_com_allocate_host_info - Allocate host info resources.
* @ena_dev: ENA communication layer struct
- * @debug_area_size: Debug aread size
*
- * Allocate host info and debug area.
+ * @return: 0 on Success and negative value otherwise.
+ */
+int ena_com_allocate_host_info(struct ena_com_dev *ena_dev);
+
+/* ena_com_allocate_debug_area - Allocate debug area.
+ * @ena_dev: ENA communication layer struct
+ * @debug_area_size - debug area size.
*
* @return: 0 on Success and negative value otherwise.
*/
-int ena_com_allocate_host_attribute(struct ena_com_dev *ena_dev,
- u32 debug_area_size);
+int ena_com_allocate_debug_area(struct ena_com_dev *ena_dev,
+ u32 debug_area_size);
+
+/* ena_com_delete_debug_area - Free the debug area resources.
+ * @ena_dev: ENA communication layer struct
+ *
+ * Free the allocate debug area.
+ */
+void ena_com_delete_debug_area(struct ena_com_dev *ena_dev);
-/* ena_com_allocate_host_attribute - Free the host attributes resources.
+/* ena_com_delete_host_info - Free the host info resources.
* @ena_dev: ENA communication layer struct
*
- * Free the allocate host info and debug area.
+ * Free the allocate host info.
*/
-void ena_com_delete_host_attribute(struct ena_com_dev *ena_dev);
+void ena_com_delete_host_info(struct ena_com_dev *ena_dev);
/* ena_com_set_host_attributes - Update the device with the host
- * attributes base address.
+ * attributes (debug area and host info) base address.
* @ena_dev: ENA communication layer struct
*
* @return: 0 on Success and negative value otherwise.
* moderation table back to the default parameters.
* @ena_dev: ENA communication layer struct
*/
-void
-ena_com_config_default_interrupt_moderation_table(struct ena_com_dev *ena_dev);
+void ena_com_config_default_interrupt_moderation_table(struct ena_com_dev *ena_dev);
/* ena_com_update_nonadaptive_moderation_interval_tx - Update the
* non-adaptive interval in Tx direction.
*
* @return - 0 on success, negative value on failure.
*/
-int
-ena_com_update_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev,
- u32 tx_coalesce_usecs);
+int ena_com_update_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev,
+ u32 tx_coalesce_usecs);
/* ena_com_update_nonadaptive_moderation_interval_rx - Update the
* non-adaptive interval in Rx direction.
*
* @return - 0 on success, negative value on failure.
*/
-int
-ena_com_update_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev,
- u32 rx_coalesce_usecs);
+int ena_com_update_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev,
+ u32 rx_coalesce_usecs);
/* ena_com_get_nonadaptive_moderation_interval_tx - Retrieve the
* non-adaptive interval in Tx direction.
*
* @return - interval in usec
*/
-unsigned int
-ena_com_get_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev);
+unsigned int ena_com_get_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev);
/* ena_com_get_nonadaptive_moderation_interval_rx - Retrieve the
* non-adaptive interval in Rx direction.
*
* @return - interval in usec
*/
-unsigned int
-ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev);
+unsigned int ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev);
/* ena_com_init_intr_moderation_entry - Update a single entry in the interrupt
* moderation table.
enum ena_intr_moder_level level,
struct ena_intr_moder_entry *entry);
-static inline bool
-ena_com_get_adaptive_moderation_enabled(struct ena_com_dev *ena_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_llq_config: The default driver LLQ parameters configurations
+ */
+int ena_com_config_dev_mode(struct ena_com_dev *ena_dev,
+ struct ena_admin_feature_llq_desc *llq_features,
+ struct ena_llq_configurations *llq_default_config);
+
+static inline bool ena_com_get_adaptive_moderation_enabled(struct ena_com_dev *ena_dev)
{
return ena_dev->adaptive_coalescing;
}
-static inline void
-ena_com_enable_adaptive_moderation(struct ena_com_dev *ena_dev)
+static inline void ena_com_enable_adaptive_moderation(struct ena_com_dev *ena_dev)
{
ena_dev->adaptive_coalescing = true;
}
-static inline void
-ena_com_disable_adaptive_moderation(struct ena_com_dev *ena_dev)
+static inline void ena_com_disable_adaptive_moderation(struct ena_com_dev *ena_dev)
{
ena_dev->adaptive_coalescing = false;
}
* @moder_tbl_idx: Current table level as input update new level as return
* value.
*/
-static inline void
-ena_com_calculate_interrupt_delay(struct ena_com_dev *ena_dev,
- unsigned int pkts,
- unsigned int bytes,
- unsigned int *smoothed_interval,
- unsigned int *moder_tbl_idx)
+static inline void ena_com_calculate_interrupt_delay(struct ena_com_dev *ena_dev,
+ unsigned int pkts,
+ unsigned int bytes,
+ unsigned int *smoothed_interval,
+ unsigned int *moder_tbl_idx)
{
enum ena_intr_moder_level curr_moder_idx, new_moder_idx;
struct ena_intr_moder_entry *curr_moder_entry;
*/
return;
- curr_moder_idx = (enum ena_intr_moder_level)*moder_tbl_idx;
+ curr_moder_idx = (enum ena_intr_moder_level)(*moder_tbl_idx);
if (unlikely(curr_moder_idx >= ENA_INTR_MAX_NUM_OF_LEVELS)) {
ena_trc_err("Wrong moderation index %u\n", curr_moder_idx);
return;
if (curr_moder_idx == ENA_INTR_MODER_LOWEST) {
if ((pkts > curr_moder_entry->pkts_per_interval) ||
(bytes > curr_moder_entry->bytes_per_interval))
- new_moder_idx = (enum ena_intr_moder_level)(curr_moder_idx + 1);
+ new_moder_idx =
+ (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE);
} else {
- pred_moder_entry = &intr_moder_tbl[curr_moder_idx - 1];
+ pred_moder_entry = &intr_moder_tbl[curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE];
if ((pkts <= pred_moder_entry->pkts_per_interval) ||
(bytes <= pred_moder_entry->bytes_per_interval))
- new_moder_idx = (enum ena_intr_moder_level)(curr_moder_idx - 1);
+ new_moder_idx =
+ (enum ena_intr_moder_level)(curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE);
else if ((pkts > curr_moder_entry->pkts_per_interval) ||
(bytes > curr_moder_entry->bytes_per_interval)) {
if (curr_moder_idx != ENA_INTR_MODER_HIGHEST)
- new_moder_idx = (enum ena_intr_moder_level)(curr_moder_idx + 1);
+ new_moder_idx =
+ (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE);
}
}
new_moder_entry = &intr_moder_tbl[new_moder_idx];
intr_reg->intr_control |=
(tx_delay_interval << ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT)
- & ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK;
+ & ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_MASK;
if (unmask)
intr_reg->intr_control |= ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK;
}
-int ena_com_get_dev_extended_stats(struct ena_com_dev *ena_dev, char *buff,
- u32 len);
+static inline u8 *ena_com_get_next_bounce_buffer(struct ena_com_io_bounce_buffer_control *bounce_buf_ctrl)
+{
+ u16 size, buffers_num;
+ u8 *buf;
+
+ size = bounce_buf_ctrl->buffer_size;
+ buffers_num = bounce_buf_ctrl->buffers_num;
+
+ buf = bounce_buf_ctrl->base_buffer +
+ (bounce_buf_ctrl->next_to_use++ & (buffers_num - 1)) * size;
-int ena_com_extended_stats_set_func_queue(struct ena_com_dev *ena_dev,
- u32 funct_queue);
+ prefetchw(bounce_buf_ctrl->base_buffer +
+ (bounce_buf_ctrl->next_to_use & (buffers_num - 1)) * size);
+
+ return buf;
+}
#if defined(__cplusplus)
}
git.droids-corp.org / dpdk.git / blobdiff