Adding debian version 4.19.249-2.debian/4.19.249-2debian

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 271 insertions, 0 deletions

diff --git a/debian/patches/features/all/ena/0004-net-ena-introduce-Low-Latency-Queues-data-structures.patch b/debian/patches/features/all/ena/0004-net-ena-introduce-Low-Latency-Queues-data-structures.patch
new file mode 100644
index 000000000..51e655bab
--- /dev/null
+++ b/debian/patches/features/all/ena/0004-net-ena-introduce-Low-Latency-Queues-data-structures.patch
@@ -0,0 +1,271 @@
+From: Arthur Kiyanovski <akiyano@amazon.com>
+Date: Thu, 11 Oct 2018 11:26:18 +0300
+Subject: [PATCH 04/19] net: ena: introduce Low Latency Queues data structures
+ according to ENA spec
+Origin: https://git.kernel.org/linus/a7982b8ec947052df6d4467b3a81571f02f528e0
+
+Low Latency Queues(LLQ) allow usage of device's memory for descriptors
+and headers. Such queues decrease processing time since data is already
+located on the device when driver rings the doorbell.
+
+Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ .../net/ethernet/amazon/ena/ena_admin_defs.h  | 90 ++++++++++++++++++-
+ drivers/net/ethernet/amazon/ena/ena_com.h     | 38 ++++++++
+ drivers/net/ethernet/amazon/ena/ena_netdev.c  |  6 +-
+ 3 files changed, 128 insertions(+), 6 deletions(-)
+
+Index: linux/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
+===================================================================
+--- linux.orig/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
++++ linux/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
+@@ -74,6 +74,8 @@ enum ena_admin_aq_feature_id {
+ 
+ 	ENA_ADMIN_HW_HINTS			= 3,
+ 
++	ENA_ADMIN_LLQ                           = 4,
++
+ 	ENA_ADMIN_RSS_HASH_FUNCTION		= 10,
+ 
+ 	ENA_ADMIN_STATELESS_OFFLOAD_CONFIG	= 11,
+@@ -485,8 +487,85 @@ struct ena_admin_device_attr_feature_des
+ 	u32 max_mtu;
+ };
+ 
++enum ena_admin_llq_header_location {
++	/* header is in descriptor list */
++	ENA_ADMIN_INLINE_HEADER                     = 1,
++	/* header in a separate ring, implies 16B descriptor list entry */
++	ENA_ADMIN_HEADER_RING                       = 2,
++};
++
++enum ena_admin_llq_ring_entry_size {
++	ENA_ADMIN_LIST_ENTRY_SIZE_128B              = 1,
++	ENA_ADMIN_LIST_ENTRY_SIZE_192B              = 2,
++	ENA_ADMIN_LIST_ENTRY_SIZE_256B              = 4,
++};
++
++enum ena_admin_llq_num_descs_before_header {
++	ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_0     = 0,
++	ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_1     = 1,
++	ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_2     = 2,
++	ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_4     = 4,
++	ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_8     = 8,
++};
++
++/* packet descriptor list entry always starts with one or more descriptors,
++ * followed by a header. The rest of the descriptors are located in the
++ * beginning of the subsequent entry. Stride refers to how the rest of the
++ * descriptors are placed. This field is relevant only for inline header
++ * mode
++ */
++enum ena_admin_llq_stride_ctrl {
++	ENA_ADMIN_SINGLE_DESC_PER_ENTRY             = 1,
++	ENA_ADMIN_MULTIPLE_DESCS_PER_ENTRY          = 2,
++};
++
++struct ena_admin_feature_llq_desc {
++	u32 max_llq_num;
++
++	u32 max_llq_depth;
++
++	/*  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
++	 */
++	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
++	 */
++	u16 desc_num_before_header_supported;
++
++	/* the desire field the driver selected to use */
++	u16 desc_num_before_header_enabled;
++
++	/* valid only if inline was chosen. bitfield of enum
++	 *    ena_admin_llq_stride_ctrl
++	 */
++	u16 descriptors_stride_ctrl_supported;
++
++	/* the stride control the driver selected to use */
++	u16 descriptors_stride_ctrl_enabled;
++};
++
+ struct ena_admin_queue_feature_desc {
+-	/* including LLQs */
+ 	u32 max_sq_num;
+ 
+ 	u32 max_sq_depth;
+@@ -495,9 +574,9 @@ struct ena_admin_queue_feature_desc {
+ 
+ 	u32 max_cq_depth;
+ 
+-	u32 max_llq_num;
++	u32 max_legacy_llq_num;
+ 
+-	u32 max_llq_depth;
++	u32 max_legacy_llq_depth;
+ 
+ 	u32 max_header_size;
+ 
+@@ -822,6 +901,8 @@ struct ena_admin_get_feat_resp {
+ 
+ 		struct ena_admin_device_attr_feature_desc dev_attr;
+ 
++		struct ena_admin_feature_llq_desc llq;
++
+ 		struct ena_admin_queue_feature_desc max_queue;
+ 
+ 		struct ena_admin_feature_aenq_desc aenq;
+@@ -869,6 +950,9 @@ struct ena_admin_set_feat_cmd {
+ 
+ 		/* rss indirection table */
+ 		struct ena_admin_feature_rss_ind_table ind_table;
++
++		/* LLQ configuration */
++		struct ena_admin_feature_llq_desc llq;
+ 	} u;
+ };
+ 
+Index: linux/drivers/net/ethernet/amazon/ena/ena_com.h
+===================================================================
+--- linux.orig/drivers/net/ethernet/amazon/ena/ena_com.h
++++ linux/drivers/net/ethernet/amazon/ena/ena_com.h
+@@ -108,6 +108,14 @@ enum ena_intr_moder_level {
+ 	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;
+@@ -142,6 +150,15 @@ struct ena_com_tx_meta {
+ 	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;
++};
++
+ struct ena_com_io_cq {
+ 	struct ena_com_io_desc_addr cdesc_addr;
+ 
+@@ -179,6 +196,20 @@ struct ena_com_io_cq {
+ 
+ } ____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;
+ 
+@@ -190,6 +221,9 @@ struct ena_com_io_sq {
+ 
+ 	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;
+@@ -197,6 +231,7 @@ struct ena_com_io_sq {
+ 	u16 idx;
+ 	u16 tail;
+ 	u16 next_to_comp;
++	u16 llq_last_copy_tail;
+ 	u32 tx_max_header_size;
+ 	u8 phase;
+ 	u8 desc_entry_size;
+@@ -334,6 +369,8 @@ struct ena_com_dev {
+ 	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_com_dev_get_features_ctx {
+@@ -342,6 +379,7 @@ struct ena_com_dev_get_features_ctx {
+ 	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_com_create_io_ctx {
+Index: linux/drivers/net/ethernet/amazon/ena/ena_netdev.c
+===================================================================
+--- linux.orig/drivers/net/ethernet/amazon/ena/ena_netdev.c
++++ linux/drivers/net/ethernet/amazon/ena/ena_netdev.c
+@@ -2959,7 +2959,7 @@ static int ena_calc_io_queue_num(struct
+ 
+ 	/* In case of LLQ use the llq number in the get feature cmd */
+ 	if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
+-		io_sq_num = get_feat_ctx->max_queues.max_llq_num;
++		io_sq_num = get_feat_ctx->max_queues.max_legacy_llq_num;
+ 
+ 		if (io_sq_num == 0) {
+ 			dev_err(&pdev->dev,
+@@ -2995,7 +2995,7 @@ static void ena_set_push_mode(struct pci
+ 	has_mem_bar = pci_select_bars(pdev, IORESOURCE_MEM) & BIT(ENA_MEM_BAR);
+ 
+ 	/* Enable push mode if device supports LLQ */
+-	if (has_mem_bar && (get_feat_ctx->max_queues.max_llq_num > 0))
++	if (has_mem_bar && get_feat_ctx->max_queues.max_legacy_llq_num > 0)
+ 		ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_DEV;
+ 	else
+ 		ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
+@@ -3131,7 +3131,7 @@ static int ena_calc_queue_size(struct pc
+ 
+ 	if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
+ 		queue_size = min_t(u32, queue_size,
+-				   get_feat_ctx->max_queues.max_llq_depth);
++				   get_feat_ctx->max_queues.max_legacy_llq_depth);
+ 
+ 	queue_size = rounddown_pow_of_two(queue_size);
+