-/*-
-* 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_includes.h"
#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_MODER_LOW,
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;
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;
void *bus;
} ____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 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 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 {
/* 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
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;
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 {
/* 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
*/
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
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
enum ena_intr_moder_level level,
struct ena_intr_moder_entry *entry);
+/* 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;
intr_reg->intr_control |= ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK;
}
+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;
+
+ prefetchw(bounce_buf_ctrl->base_buffer +
+ (bounce_buf_ctrl->next_to_use & (buffers_num - 1)) * size);
+
+ return buf;
+}
+
#if defined(__cplusplus)
}
#endif /* __cplusplus */
git.droids-corp.org / dpdk.git / blobdiff