[PATCH net-next 00/16] bnxt_en: Add TPA (GRO_HW and LRO) on 57500 chips.

[PATCH net-next 00/16] bnxt_en: Add TPA (GRO_HW and LRO) on 57500 chips.

[Michael Chan]

This patchset adds TPA v2 support on the 57500 chips.  TPA v2 is
different from the legacy TPA scheme on older chips and requires major
refactoring and restructuring of the existing TPA logic.  The main
difference is that the new TPA v2 has on-the-fly aggregation buffer
completions before a TPA packet is completed.  The larger aggregation
ID space also requires a new ID mapping logic to make it more
memory efficient.

Michael Chan (16):
  bnxt_en: Update firmware interface spec. to 1.10.0.89.
  bnxt_en: Add TPA structure definitions for BCM57500 chips.
  bnxt_en: Refactor TPA logic.
  bnxt_en: Expand bnxt_tpa_info struct to support 57500 chips.
  bnxt_en: Handle standalone RX_AGG completions.
  bnxt_en: Refactor tunneled hardware GRO logic.
  bnxt_en: Set TPA GRO mode flags on 57500 chips properly.
  bnxt_en: Add fast path logic for TPA on 57500 chips.
  bnxt_en: Add TPA ID mapping logic for 57500 chips.
  bnxt_en: Add hardware GRO setup function for 57500 chips.
  bnxt_en: Refactor ethtool ring statistics logic.
  bnxt_en: Allocate the larger per-ring statistics block for 57500
    chips.
  bnxt_en: Support TPA counters on 57500 chips.
  bnxt_en: Refactor bnxt_init_one() and turn on TPA support on 57500
    chips.
  bnxt_en: Support all variants of the 5750X chip family.
  bnxt_en: Add PCI IDs for 57500 series NPAR devices.

 drivers/net/ethernet/broadcom/bnxt/bnxt.c         | 542 +++++++++++++++-------
 drivers/net/ethernet/broadcom/bnxt/bnxt.h         |  95 +++-
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 156 +++++--
 drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h     | 109 ++++-
 4 files changed, 666 insertions(+), 236 deletions(-)

-- 
2.5.1

[PATCH net-next 01/16] bnxt_en: Update firmware interface spec. to 1.10.0.89.

[Michael Chan]

Among the changes are new CoS discard counters and new ctx_hw_stats_ext
struct for the latest 5750X B0 chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c |  15 +++
 drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h     | 109 ++++++++++++++++++----
 2 files changed, 108 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index c7ee63d..1eb590e 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -207,6 +207,20 @@ static int bnxt_set_coalesce(struct net_device *dev,
 	BNXT_TX_STATS_EXT_COS_ENTRY(6),				\
 	BNXT_TX_STATS_EXT_COS_ENTRY(7)				\
 
+#define BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(n)			\
+	BNXT_RX_STATS_EXT_ENTRY(rx_discard_bytes_cos##n),	\
+	BNXT_RX_STATS_EXT_ENTRY(rx_discard_packets_cos##n)
+
+#define BNXT_RX_STATS_EXT_DISCARD_COS_ENTRIES				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(0),				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(1),				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(2),				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(3),				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(4),				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(5),				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(6),				\
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRY(7)
+
 #define BNXT_RX_STATS_PRI_ENTRY(counter, n)		\
 	{ BNXT_RX_STATS_EXT_OFFSET(counter##_cos0),	\
 	  __stringify(counter##_pri##n) }
@@ -352,6 +366,7 @@ static const struct {
 	BNXT_RX_STATS_EXT_ENTRY(rx_buffer_passed_threshold),
 	BNXT_RX_STATS_EXT_ENTRY(rx_pcs_symbol_err),
 	BNXT_RX_STATS_EXT_ENTRY(rx_corrected_bits),
+	BNXT_RX_STATS_EXT_DISCARD_COS_ENTRIES,
 };
 
 static const struct {
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
index 12bbb2a..2cdef75 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
@@ -1,7 +1,8 @@
 /* Broadcom NetXtreme-C/E network driver.
  *
  * Copyright (c) 2014-2016 Broadcom Corporation
- * Copyright (c) 2016-2019 Broadcom Limited
+ * Copyright (c) 2014-2018 Broadcom Limited
+ * Copyright (c) 2018-2019 Broadcom Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -39,15 +40,15 @@ struct hwrm_resp_hdr {
 #define TLV_TYPE_ROCE_SP_COMMAND                 0x3UL
 #define TLV_TYPE_QUERY_ROCE_CC_GEN1              0x4UL
 #define TLV_TYPE_MODIFY_ROCE_CC_GEN1             0x5UL
-#define TLV_TYPE_ENGINE_CKV_DEVICE_SERIAL_NUMBER 0x8001UL
-#define TLV_TYPE_ENGINE_CKV_NONCE                0x8002UL
+#define TLV_TYPE_ENGINE_CKV_ALIAS_ECC_PUBLIC_KEY 0x8001UL
 #define TLV_TYPE_ENGINE_CKV_IV                   0x8003UL
 #define TLV_TYPE_ENGINE_CKV_AUTH_TAG             0x8004UL
 #define TLV_TYPE_ENGINE_CKV_CIPHERTEXT           0x8005UL
 #define TLV_TYPE_ENGINE_CKV_ALGORITHMS           0x8006UL
-#define TLV_TYPE_ENGINE_CKV_ECC_PUBLIC_KEY       0x8007UL
+#define TLV_TYPE_ENGINE_CKV_HOST_ECC_PUBLIC_KEY  0x8007UL
 #define TLV_TYPE_ENGINE_CKV_ECDSA_SIGNATURE      0x8008UL
-#define TLV_TYPE_LAST                           TLV_TYPE_ENGINE_CKV_ECDSA_SIGNATURE
+#define TLV_TYPE_ENGINE_CKV_SRT_ECC_PUBLIC_KEY   0x8009UL
+#define TLV_TYPE_LAST                           TLV_TYPE_ENGINE_CKV_SRT_ECC_PUBLIC_KEY
 
 
 /* tlv (size:64b/8B) */
@@ -267,7 +268,6 @@ struct cmd_nums {
 	#define HWRM_CFA_EEM_OP                           0x123UL
 	#define HWRM_CFA_ADV_FLOW_MGNT_QCAPS              0x124UL
 	#define HWRM_CFA_TFLIB                            0x125UL
-	#define HWRM_ENGINE_CKV_HELLO                     0x12dUL
 	#define HWRM_ENGINE_CKV_STATUS                    0x12eUL
 	#define HWRM_ENGINE_CKV_CKEK_ADD                  0x12fUL
 	#define HWRM_ENGINE_CKV_CKEK_DELETE               0x130UL
@@ -313,6 +313,7 @@ struct cmd_nums {
 	#define HWRM_FUNC_BACKING_STORE_QCFG              0x194UL
 	#define HWRM_FUNC_VF_BW_CFG                       0x195UL
 	#define HWRM_FUNC_VF_BW_QCFG                      0x196UL
+	#define HWRM_FUNC_HOST_PF_IDS_QUERY               0x197UL
 	#define HWRM_SELFTEST_QLIST                       0x200UL
 	#define HWRM_SELFTEST_EXEC                        0x201UL
 	#define HWRM_SELFTEST_IRQ                         0x202UL
@@ -410,8 +411,8 @@ struct hwrm_err_output {
 #define HWRM_VERSION_MAJOR 1
 #define HWRM_VERSION_MINOR 10
 #define HWRM_VERSION_UPDATE 0
-#define HWRM_VERSION_RSVD 69
-#define HWRM_VERSION_STR "1.10.0.69"
+#define HWRM_VERSION_RSVD 89
+#define HWRM_VERSION_STR "1.10.0.89"
 
 /* hwrm_ver_get_input (size:192b/24B) */
 struct hwrm_ver_get_input {
@@ -624,6 +625,8 @@ struct hwrm_async_event_cmpl {
 	#define ASYNC_EVENT_CMPL_EVENT_ID_TCP_FLAG_ACTION_CHANGE     0x3aUL
 	#define ASYNC_EVENT_CMPL_EVENT_ID_EEM_FLOW_ACTIVE            0x3bUL
 	#define ASYNC_EVENT_CMPL_EVENT_ID_EEM_CFG_CHANGE             0x3cUL
+	#define ASYNC_EVENT_CMPL_EVENT_ID_TFLIB_DEFAULT_VNIC_CHANGE  0x3dUL
+	#define ASYNC_EVENT_CMPL_EVENT_ID_TFLIB_LINK_STATUS_CHANGE   0x3eUL
 	#define ASYNC_EVENT_CMPL_EVENT_ID_FW_TRACE_MSG               0xfeUL
 	#define ASYNC_EVENT_CMPL_EVENT_ID_HWRM_ERROR                 0xffUL
 	#define ASYNC_EVENT_CMPL_EVENT_ID_LAST                      ASYNC_EVENT_CMPL_EVENT_ID_HWRM_ERROR
@@ -1122,6 +1125,7 @@ struct hwrm_func_qcfg_output {
 	#define FUNC_QCFG_RESP_FLAGS_MULTI_HOST                   0x20UL
 	#define FUNC_QCFG_RESP_FLAGS_TRUSTED_VF                   0x40UL
 	#define FUNC_QCFG_RESP_FLAGS_SECURE_MODE_ENABLED          0x80UL
+	#define FUNC_QCFG_RESP_FLAGS_PREBOOT_LEGACY_L2_RINGS      0x100UL
 	u8	mac_address[6];
 	__le16	pci_id;
 	__le16	alloc_rsscos_ctx;
@@ -1241,6 +1245,7 @@ struct hwrm_func_cfg_input {
 	#define FUNC_CFG_REQ_FLAGS_DYNAMIC_TX_RING_ALLOC          0x400000UL
 	#define FUNC_CFG_REQ_FLAGS_NQ_ASSETS_TEST                 0x800000UL
 	#define FUNC_CFG_REQ_FLAGS_TRUSTED_VF_DISABLE             0x1000000UL
+	#define FUNC_CFG_REQ_FLAGS_PREBOOT_LEGACY_L2_RINGS        0x2000000UL
 	__le32	enables;
 	#define FUNC_CFG_REQ_ENABLES_MTU                     0x1UL
 	#define FUNC_CFG_REQ_ENABLES_MRU                     0x2UL
@@ -2916,7 +2921,7 @@ struct tx_port_stats_ext {
 	__le64	pfc_pri7_tx_transitions;
 };
 
-/* rx_port_stats_ext (size:2624b/328B) */
+/* rx_port_stats_ext (size:3648b/456B) */
 struct rx_port_stats_ext {
 	__le64	link_down_events;
 	__le64	continuous_pause_events;
@@ -2959,6 +2964,22 @@ struct rx_port_stats_ext {
 	__le64	rx_buffer_passed_threshold;
 	__le64	rx_pcs_symbol_err;
 	__le64	rx_corrected_bits;
+	__le64	rx_discard_bytes_cos0;
+	__le64	rx_discard_bytes_cos1;
+	__le64	rx_discard_bytes_cos2;
+	__le64	rx_discard_bytes_cos3;
+	__le64	rx_discard_bytes_cos4;
+	__le64	rx_discard_bytes_cos5;
+	__le64	rx_discard_bytes_cos6;
+	__le64	rx_discard_bytes_cos7;
+	__le64	rx_discard_packets_cos0;
+	__le64	rx_discard_packets_cos1;
+	__le64	rx_discard_packets_cos2;
+	__le64	rx_discard_packets_cos3;
+	__le64	rx_discard_packets_cos4;
+	__le64	rx_discard_packets_cos5;
+	__le64	rx_discard_packets_cos6;
+	__le64	rx_discard_packets_cos7;
 };
 
 /* hwrm_port_qstats_ext_input (size:320b/40B) */
@@ -6115,6 +6136,21 @@ struct hwrm_cfa_flow_alloc_output {
 	u8	valid;
 };
 
+/* hwrm_cfa_flow_alloc_cmd_err (size:64b/8B) */
+struct hwrm_cfa_flow_alloc_cmd_err {
+	u8	code;
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_UNKNOWN         0x0UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_L2_CONTEXT_TCAM 0x1UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_ACTION_RECORD   0x2UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_FLOW_COUNTER    0x3UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_WILD_CARD_TCAM  0x4UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_HASH_COLLISION  0x5UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_KEY_EXISTS      0x6UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_FLOW_CTXT_DB    0x7UL
+	#define CFA_FLOW_ALLOC_CMD_ERR_CODE_LAST           CFA_FLOW_ALLOC_CMD_ERR_CODE_FLOW_CTXT_DB
+	u8	unused_0[7];
+};
+
 /* hwrm_cfa_flow_free_input (size:256b/32B) */
 struct hwrm_cfa_flow_free_input {
 	__le16	req_type;
@@ -6305,7 +6341,7 @@ struct hwrm_cfa_eem_qcaps_input {
 	__le32	unused_0;
 };
 
-/* hwrm_cfa_eem_qcaps_output (size:256b/32B) */
+/* hwrm_cfa_eem_qcaps_output (size:320b/40B) */
 struct hwrm_cfa_eem_qcaps_output {
 	__le16	error_code;
 	__le16	req_type;
@@ -6322,15 +6358,17 @@ struct hwrm_cfa_eem_qcaps_output {
 	#define CFA_EEM_QCAPS_RESP_SUPPORTED_KEY1_TABLE                       0x2UL
 	#define CFA_EEM_QCAPS_RESP_SUPPORTED_EXTERNAL_RECORD_TABLE            0x4UL
 	#define CFA_EEM_QCAPS_RESP_SUPPORTED_EXTERNAL_FLOW_COUNTERS_TABLE     0x8UL
+	#define CFA_EEM_QCAPS_RESP_SUPPORTED_FID_TABLE                        0x10UL
 	__le32	max_entries_supported;
 	__le16	key_entry_size;
 	__le16	record_entry_size;
 	__le16	efc_entry_size;
-	u8	unused_1;
+	__le16	fid_entry_size;
+	u8	unused_1[7];
 	u8	valid;
 };
 
-/* hwrm_cfa_eem_cfg_input (size:320b/40B) */
+/* hwrm_cfa_eem_cfg_input (size:384b/48B) */
 struct hwrm_cfa_eem_cfg_input {
 	__le16	req_type;
 	__le16	cmpl_ring;
@@ -6350,6 +6388,9 @@ struct hwrm_cfa_eem_cfg_input {
 	__le16	key1_ctx_id;
 	__le16	record_ctx_id;
 	__le16	efc_ctx_id;
+	__le16	fid_ctx_id;
+	__le16	unused_2;
+	__le32	unused_3;
 };
 
 /* hwrm_cfa_eem_cfg_output (size:128b/16B) */
@@ -6375,7 +6416,7 @@ struct hwrm_cfa_eem_qcfg_input {
 	__le32	unused_0;
 };
 
-/* hwrm_cfa_eem_qcfg_output (size:192b/24B) */
+/* hwrm_cfa_eem_qcfg_output (size:256b/32B) */
 struct hwrm_cfa_eem_qcfg_output {
 	__le16	error_code;
 	__le16	req_type;
@@ -6386,7 +6427,12 @@ struct hwrm_cfa_eem_qcfg_output {
 	#define CFA_EEM_QCFG_RESP_FLAGS_PATH_RX               0x2UL
 	#define CFA_EEM_QCFG_RESP_FLAGS_PREFERRED_OFFLOAD     0x4UL
 	__le32	num_entries;
-	u8	unused_0[7];
+	__le16	key0_ctx_id;
+	__le16	key1_ctx_id;
+	__le16	record_ctx_id;
+	__le16	efc_ctx_id;
+	__le16	fid_ctx_id;
+	u8	unused_2[5];
 	u8	valid;
 };
 
@@ -6567,6 +6613,31 @@ struct ctx_hw_stats {
 	__le64	tpa_aborts;
 };
 
+/* ctx_hw_stats_ext (size:1344b/168B) */
+struct ctx_hw_stats_ext {
+	__le64	rx_ucast_pkts;
+	__le64	rx_mcast_pkts;
+	__le64	rx_bcast_pkts;
+	__le64	rx_discard_pkts;
+	__le64	rx_drop_pkts;
+	__le64	rx_ucast_bytes;
+	__le64	rx_mcast_bytes;
+	__le64	rx_bcast_bytes;
+	__le64	tx_ucast_pkts;
+	__le64	tx_mcast_pkts;
+	__le64	tx_bcast_pkts;
+	__le64	tx_discard_pkts;
+	__le64	tx_drop_pkts;
+	__le64	tx_ucast_bytes;
+	__le64	tx_mcast_bytes;
+	__le64	tx_bcast_bytes;
+	__le64	rx_tpa_eligible_pkt;
+	__le64	rx_tpa_eligible_bytes;
+	__le64	rx_tpa_pkt;
+	__le64	rx_tpa_bytes;
+	__le64	rx_tpa_errors;
+};
+
 /* hwrm_stat_ctx_alloc_input (size:256b/32B) */
 struct hwrm_stat_ctx_alloc_input {
 	__le16	req_type;
@@ -6578,7 +6649,8 @@ struct hwrm_stat_ctx_alloc_input {
 	__le32	update_period_ms;
 	u8	stat_ctx_flags;
 	#define STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE     0x1UL
-	u8	unused_0[3];
+	u8	unused_0;
+	__le16	stats_dma_length;
 };
 
 /* hwrm_stat_ctx_alloc_output (size:128b/16B) */
@@ -7204,7 +7276,9 @@ struct coredump_segment_record {
 	u8	version_hi;
 	u8	version_low;
 	u8	seg_flags;
-	u8	unused_0[7];
+	u8	compress_flags;
+	#define SFLAG_COMPRESSED_ZLIB     0x1UL
+	u8	unused_0[6];
 };
 
 /* hwrm_dbg_coredump_list_input (size:256b/32B) */
@@ -7729,6 +7803,9 @@ struct hwrm_nvm_set_variable_input {
 	#define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_AES256          (0x2UL << 1)
 	#define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_HMAC_SHA1_AUTH  (0x3UL << 1)
 	#define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_LAST           NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_HMAC_SHA1_AUTH
+	#define NVM_SET_VARIABLE_REQ_FLAGS_FLAGS_UNUSED_0_MASK        0x70UL
+	#define NVM_SET_VARIABLE_REQ_FLAGS_FLAGS_UNUSED_0_SFT         4
+	#define NVM_SET_VARIABLE_REQ_FLAGS_FACTORY_DEFAULT            0x80UL
 	u8	unused_0;
 };
 
-- 
2.5.1

[PATCH net-next 02/16] bnxt_en: Add TPA structure definitions for BCM57500 chips.

[Michael Chan]

The new chips have a slightly modified TPA interface for LRO/GRO_HW.
Modify the TPA structures so that the same structures can also be
used on the new chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.h | 67 +++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 16694b7..650d800 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -113,6 +113,7 @@ struct tx_cmp {
 	 #define CMP_TYPE_RX_AGG_CMP				 18
 	 #define CMP_TYPE_RX_L2_TPA_START_CMP			 19
 	 #define CMP_TYPE_RX_L2_TPA_END_CMP			 21
+	 #define CMP_TYPE_RX_TPA_AGG_CMP			 22
 	 #define CMP_TYPE_STATUS_CMP				 32
 	 #define CMP_TYPE_REMOTE_DRIVER_REQ			 34
 	 #define CMP_TYPE_REMOTE_DRIVER_RESP			 36
@@ -263,14 +264,21 @@ struct rx_agg_cmp {
 	u32 rx_agg_cmp_opaque;
 	__le32 rx_agg_cmp_v;
 	#define RX_AGG_CMP_V					(1 << 0)
+	#define RX_AGG_CMP_AGG_ID				(0xffff << 16)
+	 #define RX_AGG_CMP_AGG_ID_SHIFT			 16
 	__le32 rx_agg_cmp_unused;
 };
 
+#define TPA_AGG_AGG_ID(rx_agg)				\
+	((le32_to_cpu((rx_agg)->rx_agg_cmp_v) &		\
+	 RX_AGG_CMP_AGG_ID) >> RX_AGG_CMP_AGG_ID_SHIFT)
+
 struct rx_tpa_start_cmp {
 	__le32 rx_tpa_start_cmp_len_flags_type;
 	#define RX_TPA_START_CMP_TYPE				(0x3f << 0)
 	#define RX_TPA_START_CMP_FLAGS				(0x3ff << 6)
 	 #define RX_TPA_START_CMP_FLAGS_SHIFT			 6
+	#define RX_TPA_START_CMP_FLAGS_ERROR			(0x1 << 6)
 	#define RX_TPA_START_CMP_FLAGS_PLACEMENT		(0x7 << 7)
 	 #define RX_TPA_START_CMP_FLAGS_PLACEMENT_SHIFT		 7
 	 #define RX_TPA_START_CMP_FLAGS_PLACEMENT_JUMBO		 (0x1 << 7)
@@ -278,6 +286,7 @@ struct rx_tpa_start_cmp {
 	 #define RX_TPA_START_CMP_FLAGS_PLACEMENT_GRO_JUMBO	 (0x5 << 7)
 	 #define RX_TPA_START_CMP_FLAGS_PLACEMENT_GRO_HDS	 (0x6 << 7)
 	#define RX_TPA_START_CMP_FLAGS_RSS_VALID		(0x1 << 10)
+	#define RX_TPA_START_CMP_FLAGS_TIMESTAMP		(0x1 << 11)
 	#define RX_TPA_START_CMP_FLAGS_ITYPES			(0xf << 12)
 	 #define RX_TPA_START_CMP_FLAGS_ITYPES_SHIFT		 12
 	 #define RX_TPA_START_CMP_FLAGS_ITYPE_TCP		 (0x2 << 12)
@@ -291,6 +300,8 @@ struct rx_tpa_start_cmp {
 	 #define RX_TPA_START_CMP_RSS_HASH_TYPE_SHIFT		 9
 	#define RX_TPA_START_CMP_AGG_ID				(0x7f << 25)
 	 #define RX_TPA_START_CMP_AGG_ID_SHIFT			 25
+	#define RX_TPA_START_CMP_AGG_ID_P5			(0xffff << 16)
+	 #define RX_TPA_START_CMP_AGG_ID_SHIFT_P5		 16
 
 	__le32 rx_tpa_start_cmp_rss_hash;
 };
@@ -308,6 +319,14 @@ struct rx_tpa_start_cmp {
 	((le32_to_cpu((rx_tpa_start)->rx_tpa_start_cmp_misc_v1) &	\
 	 RX_TPA_START_CMP_AGG_ID) >> RX_TPA_START_CMP_AGG_ID_SHIFT)
 
+#define TPA_START_AGG_ID_P5(rx_tpa_start)				\
+	((le32_to_cpu((rx_tpa_start)->rx_tpa_start_cmp_misc_v1) &	\
+	 RX_TPA_START_CMP_AGG_ID_P5) >> RX_TPA_START_CMP_AGG_ID_SHIFT_P5)
+
+#define TPA_START_ERROR(rx_tpa_start)					\
+	((rx_tpa_start)->rx_tpa_start_cmp_len_flags_type &		\
+	 cpu_to_le32(RX_TPA_START_CMP_FLAGS_ERROR))
+
 struct rx_tpa_start_cmp_ext {
 	__le32 rx_tpa_start_cmp_flags2;
 	#define RX_TPA_START_CMP_FLAGS2_IP_CS_CALC		(0x1 << 0)
@@ -315,10 +334,20 @@ struct rx_tpa_start_cmp_ext {
 	#define RX_TPA_START_CMP_FLAGS2_T_IP_CS_CALC		(0x1 << 2)
 	#define RX_TPA_START_CMP_FLAGS2_T_L4_CS_CALC		(0x1 << 3)
 	#define RX_TPA_START_CMP_FLAGS2_IP_TYPE			(0x1 << 8)
+	#define RX_TPA_START_CMP_FLAGS2_CSUM_CMPL_VALID		(0x1 << 9)
+	#define RX_TPA_START_CMP_FLAGS2_EXT_META_FORMAT		(0x3 << 10)
+	 #define RX_TPA_START_CMP_FLAGS2_EXT_META_FORMAT_SHIFT	 10
+	#define RX_TPA_START_CMP_FLAGS2_CSUM_CMPL		(0xffff << 16)
+	 #define RX_TPA_START_CMP_FLAGS2_CSUM_CMPL_SHIFT	 16
 
 	__le32 rx_tpa_start_cmp_metadata;
 	__le32 rx_tpa_start_cmp_cfa_code_v2;
 	#define RX_TPA_START_CMP_V2				(0x1 << 0)
+	#define RX_TPA_START_CMP_ERRORS_BUFFER_ERROR_MASK	(0x7 << 1)
+	 #define RX_TPA_START_CMP_ERRORS_BUFFER_ERROR_SHIFT	 1
+	 #define RX_TPA_START_CMP_ERRORS_BUFFER_ERROR_NO_BUFFER	 (0x0 << 1)
+	 #define RX_TPA_START_CMP_ERRORS_BUFFER_ERROR_BAD_FORMAT (0x3 << 1)
+	 #define RX_TPA_START_CMP_ERRORS_BUFFER_ERROR_FLUSH	 (0x5 << 1)
 	#define RX_TPA_START_CMP_CFA_CODE			(0xffff << 16)
 	 #define RX_TPA_START_CMPL_CFA_CODE_SHIFT		 16
 	__le32 rx_tpa_start_cmp_hdr_info;
@@ -332,6 +361,11 @@ struct rx_tpa_start_cmp_ext {
 	(!!((rx_tpa_start)->rx_tpa_start_cmp_flags2 &		\
 	    cpu_to_le32(RX_TPA_START_CMP_FLAGS2_IP_TYPE)))
 
+#define TPA_START_ERROR_CODE(rx_tpa_start)				\
+	((le32_to_cpu((rx_tpa_start)->rx_tpa_start_cmp_cfa_code_v2) &	\
+	  RX_TPA_START_CMP_ERRORS_BUFFER_ERROR_MASK) >>			\
+	 RX_TPA_START_CMP_ERRORS_BUFFER_ERROR_SHIFT)
+
 struct rx_tpa_end_cmp {
 	__le32 rx_tpa_end_cmp_len_flags_type;
 	#define RX_TPA_END_CMP_TYPE				(0x3f << 0)
@@ -361,6 +395,8 @@ struct rx_tpa_end_cmp {
 	 #define RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT		 16
 	#define RX_TPA_END_CMP_AGG_ID				(0x7f << 25)
 	 #define RX_TPA_END_CMP_AGG_ID_SHIFT			 25
+	#define RX_TPA_END_CMP_AGG_ID_P5			(0xffff << 16)
+	 #define RX_TPA_END_CMP_AGG_ID_SHIFT_P5			 16
 
 	__le32 rx_tpa_end_cmp_tsdelta;
 	#define RX_TPA_END_GRO_TS				(0x1 << 31)
@@ -370,6 +406,18 @@ struct rx_tpa_end_cmp {
 	((le32_to_cpu((rx_tpa_end)->rx_tpa_end_cmp_misc_v1) &		\
 	 RX_TPA_END_CMP_AGG_ID) >> RX_TPA_END_CMP_AGG_ID_SHIFT)
 
+#define TPA_END_AGG_ID_P5(rx_tpa_end)					\
+	((le32_to_cpu((rx_tpa_end)->rx_tpa_end_cmp_misc_v1) &		\
+	 RX_TPA_END_CMP_AGG_ID_P5) >> RX_TPA_END_CMP_AGG_ID_SHIFT_P5)
+
+#define TPA_END_PAYLOAD_OFF(rx_tpa_end)					\
+	((le32_to_cpu((rx_tpa_end)->rx_tpa_end_cmp_misc_v1) &		\
+	 RX_TPA_END_CMP_PAYLOAD_OFFSET) >> RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT)
+
+#define TPA_END_AGG_BUFS(rx_tpa_end)					\
+	((le32_to_cpu((rx_tpa_end)->rx_tpa_end_cmp_misc_v1) &		\
+	 RX_TPA_END_CMP_AGG_BUFS) >> RX_TPA_END_CMP_AGG_BUFS_SHIFT)
+
 #define TPA_END_TPA_SEGS(rx_tpa_end)					\
 	((le32_to_cpu((rx_tpa_end)->rx_tpa_end_cmp_misc_v1) &		\
 	 RX_TPA_END_CMP_TPA_SEGS) >> RX_TPA_END_CMP_TPA_SEGS_SHIFT)
@@ -389,6 +437,10 @@ struct rx_tpa_end_cmp {
 struct rx_tpa_end_cmp_ext {
 	__le32 rx_tpa_end_cmp_dup_acks;
 	#define RX_TPA_END_CMP_TPA_DUP_ACKS			(0xf << 0)
+	#define RX_TPA_END_CMP_PAYLOAD_OFFSET_P5		(0xff << 16)
+	 #define RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT_P5		 16
+	#define RX_TPA_END_CMP_AGG_BUFS_P5			(0xff << 24)
+	 #define RX_TPA_END_CMP_AGG_BUFS_SHIFT_P5		 24
 
 	__le32 rx_tpa_end_cmp_seg_len;
 	#define RX_TPA_END_CMP_TPA_SEG_LEN			(0xffff << 0)
@@ -396,7 +448,13 @@ struct rx_tpa_end_cmp_ext {
 	__le32 rx_tpa_end_cmp_errors_v2;
 	#define RX_TPA_END_CMP_V2				(0x1 << 0)
 	#define RX_TPA_END_CMP_ERRORS				(0x3 << 1)
+	#define RX_TPA_END_CMP_ERRORS_P5			(0x7 << 1)
 	#define RX_TPA_END_CMPL_ERRORS_SHIFT			 1
+	 #define RX_TPA_END_CMP_ERRORS_BUFFER_ERROR_NO_BUFFER	 (0x0 << 1)
+	 #define RX_TPA_END_CMP_ERRORS_BUFFER_ERROR_NOT_ON_CHIP	 (0x2 << 1)
+	 #define RX_TPA_END_CMP_ERRORS_BUFFER_ERROR_BAD_FORMAT	 (0x3 << 1)
+	 #define RX_TPA_END_CMP_ERRORS_BUFFER_ERROR_RSV_ERROR	 (0x4 << 1)
+	 #define RX_TPA_END_CMP_ERRORS_BUFFER_ERROR_FLUSH	 (0x5 << 1)
 
 	u32 rx_tpa_end_cmp_start_opaque;
 };
@@ -405,6 +463,15 @@ struct rx_tpa_end_cmp_ext {
 	((rx_tpa_end_ext)->rx_tpa_end_cmp_errors_v2 &			\
 	 cpu_to_le32(RX_TPA_END_CMP_ERRORS))
 
+#define TPA_END_PAYLOAD_OFF_P5(rx_tpa_end_ext)				\
+	((le32_to_cpu((rx_tpa_end_ext)->rx_tpa_end_cmp_dup_acks) &	\
+	 RX_TPA_END_CMP_PAYLOAD_OFFSET_P5) >>				\
+	RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT_P5)
+
+#define TPA_END_AGG_BUFS_P5(rx_tpa_end_ext)				\
+	((le32_to_cpu((rx_tpa_end_ext)->rx_tpa_end_cmp_dup_acks) &	\
+	 RX_TPA_END_CMP_AGG_BUFS_P5) >> RX_TPA_END_CMP_AGG_BUFS_SHIFT_P5)
+
 struct nqe_cn {
 	__le16	type;
 	#define NQ_CN_TYPE_MASK           0x3fUL
-- 
2.5.1

[PATCH net-next 03/16] bnxt_en: Refactor TPA logic.

[Michael Chan]

Refactor the TPA logic slightly, so that the code can be more easily
extended to support TPA on the new 57500 chips.  In particular, the
logic to get the next aggregation completion is refactored into a
new function bnxt_get_agg() so that this operation is made more
generalized.  This operation will be different on the new chip in TPA
mode.  The logic to recycle the aggregation buffers has a new start
index parameter added for the same purpose.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 117 ++++++++++++++++++------------
 1 file changed, 69 insertions(+), 48 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 7134d2c..7e3a37a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -828,8 +828,20 @@ static inline int bnxt_alloc_rx_page(struct bnxt *bp,
 	return 0;
 }
 
-static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 cp_cons,
-				   u32 agg_bufs)
+static struct rx_agg_cmp *bnxt_get_agg(struct bnxt *bp,
+				       struct bnxt_cp_ring_info *cpr,
+				       u16 cp_cons, u16 curr)
+{
+	struct rx_agg_cmp *agg;
+
+	cp_cons = RING_CMP(ADV_RAW_CMP(cp_cons, curr));
+	agg = (struct rx_agg_cmp *)
+		&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
+	return agg;
+}
+
+static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx,
+				   u16 start, u32 agg_bufs, bool tpa)
 {
 	struct bnxt_napi *bnapi = cpr->bnapi;
 	struct bnxt *bp = bnapi->bp;
@@ -845,8 +857,7 @@ static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 cp_cons,
 		struct rx_bd *prod_bd;
 		struct page *page;
 
-		agg = (struct rx_agg_cmp *)
-			&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
+		agg = bnxt_get_agg(bp, cpr, idx, start + i);
 		cons = agg->rx_agg_cmp_opaque;
 		__clear_bit(cons, rxr->rx_agg_bmap);
 
@@ -874,7 +885,6 @@ static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 cp_cons,
 
 		prod = NEXT_RX_AGG(prod);
 		sw_prod = NEXT_RX_AGG(sw_prod);
-		cp_cons = NEXT_CMP(cp_cons);
 	}
 	rxr->rx_agg_prod = prod;
 	rxr->rx_sw_agg_prod = sw_prod;
@@ -957,8 +967,8 @@ static struct sk_buff *bnxt_rx_skb(struct bnxt *bp,
 
 static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
 				     struct bnxt_cp_ring_info *cpr,
-				     struct sk_buff *skb, u16 cp_cons,
-				     u32 agg_bufs)
+				     struct sk_buff *skb, u16 idx,
+				     u32 agg_bufs, bool tpa)
 {
 	struct bnxt_napi *bnapi = cpr->bnapi;
 	struct pci_dev *pdev = bp->pdev;
@@ -973,8 +983,7 @@ static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
 		struct page *page;
 		dma_addr_t mapping;
 
-		agg = (struct rx_agg_cmp *)
-			&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
+		agg = bnxt_get_agg(bp, cpr, idx, i);
 		cons = agg->rx_agg_cmp_opaque;
 		frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) &
 			    RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT;
@@ -1008,7 +1017,7 @@ static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
 			 * allocated already.
 			 */
 			rxr->rx_agg_prod = prod;
-			bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs - i);
+			bnxt_reuse_rx_agg_bufs(cpr, idx, i, agg_bufs - i, tpa);
 			return NULL;
 		}
 
@@ -1021,7 +1030,6 @@ static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
 		skb->truesize += PAGE_SIZE;
 
 		prod = NEXT_RX_AGG(prod);
-		cp_cons = NEXT_CMP(cp_cons);
 	}
 	rxr->rx_agg_prod = prod;
 	return skb;
@@ -1081,9 +1089,7 @@ static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
 	} else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
 		struct rx_tpa_end_cmp *tpa_end = cmp;
 
-		agg_bufs = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
-			    RX_TPA_END_CMP_AGG_BUFS) >>
-			   RX_TPA_END_CMP_AGG_BUFS_SHIFT;
+		agg_bufs = TPA_END_AGG_BUFS(tpa_end);
 	}
 
 	if (agg_bufs) {
@@ -1195,11 +1201,10 @@ static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
 	cons_rx_buf->data = NULL;
 }
 
-static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 cp_cons,
-			   u32 agg_bufs)
+static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 idx, u32 agg_bufs)
 {
 	if (agg_bufs)
-		bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs);
+		bnxt_reuse_rx_agg_bufs(cpr, idx, 0, agg_bufs, true);
 }
 
 static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
@@ -1371,9 +1376,7 @@ static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp,
 	skb_shinfo(skb)->gso_size =
 		le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len);
 	skb_shinfo(skb)->gso_type = tpa_info->gso_type;
-	payload_off = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
-		       RX_TPA_END_CMP_PAYLOAD_OFFSET) >>
-		      RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT;
+	payload_off = TPA_END_PAYLOAD_OFF(tpa_end);
 	skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb);
 	if (likely(skb))
 		tcp_gro_complete(skb);
@@ -1403,11 +1406,11 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
 	u8 agg_id = TPA_END_AGG_ID(tpa_end);
 	u8 *data_ptr, agg_bufs;
-	u16 cp_cons = RING_CMP(*raw_cons);
 	unsigned int len;
 	struct bnxt_tpa_info *tpa_info;
 	dma_addr_t mapping;
 	struct sk_buff *skb;
+	u16 idx = 0;
 	void *data;
 
 	if (unlikely(bnapi->in_reset)) {
@@ -1425,19 +1428,19 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 	len = tpa_info->len;
 	mapping = tpa_info->mapping;
 
-	agg_bufs = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
-		    RX_TPA_END_CMP_AGG_BUFS) >> RX_TPA_END_CMP_AGG_BUFS_SHIFT;
+	agg_bufs = TPA_END_AGG_BUFS(tpa_end);
 
 	if (agg_bufs) {
+		idx = RING_CMP(*raw_cons);
 		if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons))
 			return ERR_PTR(-EBUSY);
 
 		*event |= BNXT_AGG_EVENT;
-		cp_cons = NEXT_CMP(cp_cons);
+		idx = NEXT_CMP(idx);
 	}
 
 	if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) {
-		bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
+		bnxt_abort_tpa(cpr, idx, agg_bufs);
 		if (agg_bufs > MAX_SKB_FRAGS)
 			netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n",
 				    agg_bufs, (int)MAX_SKB_FRAGS);
@@ -1447,7 +1450,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 	if (len <= bp->rx_copy_thresh) {
 		skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping);
 		if (!skb) {
-			bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
+			bnxt_abort_tpa(cpr, idx, agg_bufs);
 			return NULL;
 		}
 	} else {
@@ -1456,7 +1459,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 
 		new_data = __bnxt_alloc_rx_data(bp, &new_mapping, GFP_ATOMIC);
 		if (!new_data) {
-			bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
+			bnxt_abort_tpa(cpr, idx, agg_bufs);
 			return NULL;
 		}
 
@@ -1471,7 +1474,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 
 		if (!skb) {
 			kfree(data);
-			bnxt_abort_tpa(cpr, cp_cons, agg_bufs);
+			bnxt_abort_tpa(cpr, idx, agg_bufs);
 			return NULL;
 		}
 		skb_reserve(skb, bp->rx_offset);
@@ -1479,7 +1482,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 	}
 
 	if (agg_bufs) {
-		skb = bnxt_rx_pages(bp, cpr, skb, cp_cons, agg_bufs);
+		skb = bnxt_rx_pages(bp, cpr, skb, idx, agg_bufs, true);
 		if (!skb) {
 			/* Page reuse already handled by bnxt_rx_pages(). */
 			return NULL;
@@ -1623,7 +1626,8 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
 
 		bnxt_reuse_rx_data(rxr, cons, data);
 		if (agg_bufs)
-			bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs);
+			bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, agg_bufs,
+					       false);
 
 		rc = -EIO;
 		if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) {
@@ -1646,7 +1650,8 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
 		bnxt_reuse_rx_data(rxr, cons, data);
 		if (!skb) {
 			if (agg_bufs)
-				bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs);
+				bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0,
+						       agg_bufs, false);
 			rc = -ENOMEM;
 			goto next_rx;
 		}
@@ -1666,7 +1671,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
 	}
 
 	if (agg_bufs) {
-		skb = bnxt_rx_pages(bp, cpr, skb, cp_cons, agg_bufs);
+		skb = bnxt_rx_pages(bp, cpr, skb, cp_cons, agg_bufs, false);
 		if (!skb) {
 			rc = -ENOMEM;
 			goto next_rx;
@@ -2483,6 +2488,33 @@ static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem)
 	return 0;
 }
 
+static void bnxt_free_tpa_info(struct bnxt *bp)
+{
+	int i;
+
+	for (i = 0; i < bp->rx_nr_rings; i++) {
+		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
+
+		kfree(rxr->rx_tpa);
+		rxr->rx_tpa = NULL;
+	}
+}
+
+static int bnxt_alloc_tpa_info(struct bnxt *bp)
+{
+	int i;
+
+	for (i = 0; i < bp->rx_nr_rings; i++) {
+		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
+
+		rxr->rx_tpa = kcalloc(MAX_TPA, sizeof(struct bnxt_tpa_info),
+				      GFP_KERNEL);
+		if (!rxr->rx_tpa)
+			return -ENOMEM;
+	}
+	return 0;
+}
+
 static void bnxt_free_rx_rings(struct bnxt *bp)
 {
 	int i;
@@ -2490,6 +2522,7 @@ static void bnxt_free_rx_rings(struct bnxt *bp)
 	if (!bp->rx_ring)
 		return;
 
+	bnxt_free_tpa_info(bp);
 	for (i = 0; i < bp->rx_nr_rings; i++) {
 		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
 		struct bnxt_ring_struct *ring;
@@ -2503,9 +2536,6 @@ static void bnxt_free_rx_rings(struct bnxt *bp)
 		page_pool_destroy(rxr->page_pool);
 		rxr->page_pool = NULL;
 
-		kfree(rxr->rx_tpa);
-		rxr->rx_tpa = NULL;
-
 		kfree(rxr->rx_agg_bmap);
 		rxr->rx_agg_bmap = NULL;
 
@@ -2539,7 +2569,7 @@ static int bnxt_alloc_rx_page_pool(struct bnxt *bp,
 
 static int bnxt_alloc_rx_rings(struct bnxt *bp)
 {
-	int i, rc, agg_rings = 0, tpa_rings = 0;
+	int i, rc = 0, agg_rings = 0;
 
 	if (!bp->rx_ring)
 		return -ENOMEM;
@@ -2547,9 +2577,6 @@ static int bnxt_alloc_rx_rings(struct bnxt *bp)
 	if (bp->flags & BNXT_FLAG_AGG_RINGS)
 		agg_rings = 1;
 
-	if (bp->flags & BNXT_FLAG_TPA)
-		tpa_rings = 1;
-
 	for (i = 0; i < bp->rx_nr_rings; i++) {
 		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
 		struct bnxt_ring_struct *ring;
@@ -2591,17 +2618,11 @@ static int bnxt_alloc_rx_rings(struct bnxt *bp)
 			rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL);
 			if (!rxr->rx_agg_bmap)
 				return -ENOMEM;
-
-			if (tpa_rings) {
-				rxr->rx_tpa = kcalloc(MAX_TPA,
-						sizeof(struct bnxt_tpa_info),
-						GFP_KERNEL);
-				if (!rxr->rx_tpa)
-					return -ENOMEM;
-			}
 		}
 	}
-	return 0;
+	if (bp->flags & BNXT_FLAG_TPA)
+		rc = bnxt_alloc_tpa_info(bp);
+	return rc;
 }
 
 static void bnxt_free_tx_rings(struct bnxt *bp)
-- 
2.5.1

[PATCH net-next 04/16] bnxt_en: Expand bnxt_tpa_info struct to support 57500 chips.

[Michael Chan]

Add an aggregation array to bnxt_tpa_info struct to keep track of the
aggregation completions.  The aggregation completions are not
completed at the TPA_END completion on 57500 chips so we need to
keep track of them.  The array is only allocated on the new chips
when required.  An agg_count field is also added to keep track of the
number of these completions.

The maximum concurrent TPA is now discovered from firmware instead of
the hardcoded 64.  Add a new bp->max_tpa to keep track of maximum
configured TPA.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 41 ++++++++++++++++++++++++++-----
 drivers/net/ethernet/broadcom/bnxt/bnxt.h |  6 +++++
 2 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 7e3a37a..b4b3405 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -2333,7 +2333,7 @@ static void bnxt_free_rx_skbs(struct bnxt *bp)
 		int j;
 
 		if (rxr->rx_tpa) {
-			for (j = 0; j < MAX_TPA; j++) {
+			for (j = 0; j < bp->max_tpa; j++) {
 				struct bnxt_tpa_info *tpa_info =
 							&rxr->rx_tpa[j];
 				u8 *data = tpa_info->data;
@@ -2495,6 +2495,10 @@ static void bnxt_free_tpa_info(struct bnxt *bp)
 	for (i = 0; i < bp->rx_nr_rings; i++) {
 		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
 
+		if (rxr->rx_tpa) {
+			kfree(rxr->rx_tpa[0].agg_arr);
+			rxr->rx_tpa[0].agg_arr = NULL;
+		}
 		kfree(rxr->rx_tpa);
 		rxr->rx_tpa = NULL;
 	}
@@ -2502,15 +2506,33 @@ static void bnxt_free_tpa_info(struct bnxt *bp)
 
 static int bnxt_alloc_tpa_info(struct bnxt *bp)
 {
-	int i;
+	int i, j, total_aggs = 0;
+
+	bp->max_tpa = MAX_TPA;
+	if (bp->flags & BNXT_FLAG_CHIP_P5) {
+		if (!bp->max_tpa_v2)
+			return 0;
+		bp->max_tpa = max_t(u16, bp->max_tpa_v2, MAX_TPA_P5);
+		total_aggs = bp->max_tpa * MAX_SKB_FRAGS;
+	}
 
 	for (i = 0; i < bp->rx_nr_rings; i++) {
 		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
+		struct rx_agg_cmp *agg;
 
-		rxr->rx_tpa = kcalloc(MAX_TPA, sizeof(struct bnxt_tpa_info),
+		rxr->rx_tpa = kcalloc(bp->max_tpa, sizeof(struct bnxt_tpa_info),
 				      GFP_KERNEL);
 		if (!rxr->rx_tpa)
 			return -ENOMEM;
+
+		if (!(bp->flags & BNXT_FLAG_CHIP_P5))
+			continue;
+		agg = kcalloc(total_aggs, sizeof(*agg), GFP_KERNEL);
+		rxr->rx_tpa[0].agg_arr = agg;
+		if (!agg)
+			return -ENOMEM;
+		for (j = 1; j < bp->max_tpa; j++)
+			rxr->rx_tpa[j].agg_arr = agg + j * MAX_SKB_FRAGS;
 	}
 	return 0;
 }
@@ -2974,7 +2996,7 @@ static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr)
 			u8 *data;
 			dma_addr_t mapping;
 
-			for (i = 0; i < MAX_TPA; i++) {
+			for (i = 0; i < bp->max_tpa; i++) {
 				data = __bnxt_alloc_rx_data(bp, &mapping,
 							    GFP_KERNEL);
 				if (!data)
@@ -4435,6 +4457,7 @@ static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp)
 static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags)
 {
 	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+	u16 max_aggs = VNIC_TPA_CFG_REQ_MAX_AGGS_MAX;
 	struct hwrm_vnic_tpa_cfg_input req = {0};
 
 	if (vnic->fw_vnic_id == INVALID_HW_RING_ID)
@@ -4474,9 +4497,14 @@ static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags)
 			nsegs = (MAX_SKB_FRAGS - n) / n;
 		}
 
-		segs = ilog2(nsegs);
+		if (bp->flags & BNXT_FLAG_CHIP_P5) {
+			segs = MAX_TPA_SEGS_P5;
+			max_aggs = bp->max_tpa;
+		} else {
+			segs = ilog2(nsegs);
+		}
 		req.max_agg_segs = cpu_to_le16(segs);
-		req.max_aggs = cpu_to_le16(VNIC_TPA_CFG_REQ_MAX_AGGS_MAX);
+		req.max_aggs = cpu_to_le16(max_aggs);
 
 		req.min_agg_len = cpu_to_le32(512);
 	}
@@ -4836,6 +4864,7 @@ static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp)
 		if (flags &
 		    VNIC_QCAPS_RESP_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_CAP)
 			bp->flags |= BNXT_FLAG_ROCE_MIRROR_CAP;
+		bp->max_tpa_v2 = le16_to_cpu(resp->max_aggs_supported);
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
 	return rc;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 650d800..290f426 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -554,6 +554,8 @@ struct nqe_cn {
 #define BNXT_DEFAULT_TX_RING_SIZE	511
 
 #define MAX_TPA		64
+#define MAX_TPA_P5	256
+#define MAX_TPA_SEGS_P5	0x3f
 
 #if (BNXT_PAGE_SHIFT == 16)
 #define MAX_RX_PAGES	1
@@ -835,6 +837,8 @@ struct bnxt_tpa_info {
 	((hdr_info) & 0x1ff)
 
 	u16			cfa_code; /* cfa_code in TPA start compl */
+	u8			agg_count;
+	struct rx_agg_cmp	*agg_arr;
 };
 
 struct bnxt_rx_ring_info {
@@ -1481,6 +1485,8 @@ struct bnxt {
 					       u16, void *, u8 *, dma_addr_t,
 					       unsigned int);
 
+	u16			max_tpa_v2;
+	u16			max_tpa;
 	u32			rx_buf_size;
 	u32			rx_buf_use_size;	/* useable size */
 	u16			rx_offset;
-- 
2.5.1

[PATCH net-next 05/16] bnxt_en: Handle standalone RX_AGG completions.

[Michael Chan]

On the new 57500 chips, these new RX_AGG completions are not coalesced
at the TPA_END completion.  Handle these by storing them in the
array in the bnxt_tpa_info struct, as they are seen when processing
the CMPL ring.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index b4b3405..810eea2 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1517,6 +1517,17 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 	return skb;
 }
 
+static void bnxt_tpa_agg(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
+			 struct rx_agg_cmp *rx_agg)
+{
+	u16 agg_id = TPA_AGG_AGG_ID(rx_agg);
+	struct bnxt_tpa_info *tpa_info;
+
+	tpa_info = &rxr->rx_tpa[agg_id];
+	BUG_ON(tpa_info->agg_count >= MAX_SKB_FRAGS);
+	tpa_info->agg_arr[tpa_info->agg_count++] = *rx_agg;
+}
+
 static void bnxt_deliver_skb(struct bnxt *bp, struct bnxt_napi *bnapi,
 			     struct sk_buff *skb)
 {
@@ -1558,6 +1569,13 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
 	rxcmp = (struct rx_cmp *)
 			&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
 
+	cmp_type = RX_CMP_TYPE(rxcmp);
+
+	if (cmp_type == CMP_TYPE_RX_TPA_AGG_CMP) {
+		bnxt_tpa_agg(bp, rxr, (struct rx_agg_cmp *)rxcmp);
+		goto next_rx_no_prod_no_len;
+	}
+
 	tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
 	cp_cons = RING_CMP(tmp_raw_cons);
 	rxcmp1 = (struct rx_cmp_ext *)
@@ -1566,8 +1584,6 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
 	if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
 		return -EBUSY;
 
-	cmp_type = RX_CMP_TYPE(rxcmp);
-
 	prod = rxr->rx_prod;
 
 	if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) {
-- 
2.5.1

[PATCH net-next 06/16] bnxt_en: Refactor tunneled hardware GRO logic.

[Michael Chan]

The 2 GRO functions to set up the hardware GRO SKB fields for 2
different hardware chips have practically identical logic for
tunneled packets.  Refactor the logic into a separate bnxt_gro_tunnel()
function that can be used by both functions.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 69 +++++++++++++------------------
 1 file changed, 28 insertions(+), 41 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 810eea2..4856fd7 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1207,6 +1207,31 @@ static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 idx, u32 agg_bufs)
 		bnxt_reuse_rx_agg_bufs(cpr, idx, 0, agg_bufs, true);
 }
 
+#ifdef CONFIG_INET
+static void bnxt_gro_tunnel(struct sk_buff *skb, __be16 ip_proto)
+{
+	struct udphdr *uh = NULL;
+
+	if (ip_proto == htons(ETH_P_IP)) {
+		struct iphdr *iph = (struct iphdr *)skb->data;
+
+		if (iph->protocol == IPPROTO_UDP)
+			uh = (struct udphdr *)(iph + 1);
+	} else {
+		struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
+
+		if (iph->nexthdr == IPPROTO_UDP)
+			uh = (struct udphdr *)(iph + 1);
+	}
+	if (uh) {
+		if (uh->check)
+			skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL_CSUM;
+		else
+			skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
+	}
+}
+#endif
+
 static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
 					   int payload_off, int tcp_ts,
 					   struct sk_buff *skb)
@@ -1264,28 +1289,10 @@ static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
 	}
 
 	if (inner_mac_off) { /* tunnel */
-		struct udphdr *uh = NULL;
 		__be16 proto = *((__be16 *)(skb->data + outer_ip_off -
 					    ETH_HLEN - 2));
 
-		if (proto == htons(ETH_P_IP)) {
-			struct iphdr *iph = (struct iphdr *)skb->data;
-
-			if (iph->protocol == IPPROTO_UDP)
-				uh = (struct udphdr *)(iph + 1);
-		} else {
-			struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
-
-			if (iph->nexthdr == IPPROTO_UDP)
-				uh = (struct udphdr *)(iph + 1);
-		}
-		if (uh) {
-			if (uh->check)
-				skb_shinfo(skb)->gso_type |=
-					SKB_GSO_UDP_TUNNEL_CSUM;
-			else
-				skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
-		}
+		bnxt_gro_tunnel(skb, proto);
 	}
 #endif
 	return skb;
@@ -1332,28 +1339,8 @@ static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info,
 		return NULL;
 	}
 
-	if (nw_off) { /* tunnel */
-		struct udphdr *uh = NULL;
-
-		if (skb->protocol == htons(ETH_P_IP)) {
-			struct iphdr *iph = (struct iphdr *)skb->data;
-
-			if (iph->protocol == IPPROTO_UDP)
-				uh = (struct udphdr *)(iph + 1);
-		} else {
-			struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
-
-			if (iph->nexthdr == IPPROTO_UDP)
-				uh = (struct udphdr *)(iph + 1);
-		}
-		if (uh) {
-			if (uh->check)
-				skb_shinfo(skb)->gso_type |=
-					SKB_GSO_UDP_TUNNEL_CSUM;
-			else
-				skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
-		}
-	}
+	if (nw_off) /* tunnel */
+		bnxt_gro_tunnel(skb, skb->protocol);
 #endif
 	return skb;
 }
-- 
2.5.1

[PATCH net-next 07/16] bnxt_en: Set TPA GRO mode flags on 57500 chips properly.

[Michael Chan]

On 57500 chips, hardware GRO mode cannot be determined from the TPA
end, so we need to check bp->flags to determine if we are in hardware
GRO mode or not.  Modify bnxt_set_features so that the TPA flags
in bp->flags don't change until the device is closed.  This will ensure
that the fast path can safely rely on bp->flags to determine the
TPA mode.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 4856fd7..b615206 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -9345,7 +9345,8 @@ static int bnxt_set_features(struct net_device *dev, netdev_features_t features)
 	if (changes & BNXT_FLAG_TPA) {
 		update_tpa = true;
 		if ((bp->flags & BNXT_FLAG_TPA) == 0 ||
-		    (flags & BNXT_FLAG_TPA) == 0)
+		    (flags & BNXT_FLAG_TPA) == 0 ||
+		    (bp->flags & BNXT_FLAG_CHIP_P5))
 			re_init = true;
 	}
 
@@ -9355,9 +9356,8 @@ static int bnxt_set_features(struct net_device *dev, netdev_features_t features)
 	if (flags != bp->flags) {
 		u32 old_flags = bp->flags;
 
-		bp->flags = flags;
-
 		if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
+			bp->flags = flags;
 			if (update_tpa)
 				bnxt_set_ring_params(bp);
 			return rc;
@@ -9365,12 +9365,14 @@ static int bnxt_set_features(struct net_device *dev, netdev_features_t features)
 
 		if (re_init) {
 			bnxt_close_nic(bp, false, false);
+			bp->flags = flags;
 			if (update_tpa)
 				bnxt_set_ring_params(bp);
 
 			return bnxt_open_nic(bp, false, false);
 		}
 		if (update_tpa) {
+			bp->flags = flags;
 			rc = bnxt_set_tpa(bp,
 					  (flags & BNXT_FLAG_TPA) ?
 					  true : false);
-- 
2.5.1

[PATCH net-next 08/16] bnxt_en: Add fast path logic for TPA on 57500 chips.

[Michael Chan]

With all the previous refactoring, the TPA fast path can now be
modified slightly to support TPA on the new chips.  The main
difference is that the agg completions are retrieved differently using
the bnxt_get_tpa_agg_p5() function on the new chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 100 ++++++++++++++++++++++--------
 1 file changed, 75 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index b615206..535b4c1 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -840,6 +840,15 @@ static struct rx_agg_cmp *bnxt_get_agg(struct bnxt *bp,
 	return agg;
 }
 
+static struct rx_agg_cmp *bnxt_get_tpa_agg_p5(struct bnxt *bp,
+					      struct bnxt_rx_ring_info *rxr,
+					      u16 agg_id, u16 curr)
+{
+	struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[agg_id];
+
+	return &tpa_info->agg_arr[curr];
+}
+
 static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx,
 				   u16 start, u32 agg_bufs, bool tpa)
 {
@@ -848,8 +857,12 @@ static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx,
 	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
 	u16 prod = rxr->rx_agg_prod;
 	u16 sw_prod = rxr->rx_sw_agg_prod;
+	bool p5_tpa = false;
 	u32 i;
 
+	if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa)
+		p5_tpa = true;
+
 	for (i = 0; i < agg_bufs; i++) {
 		u16 cons;
 		struct rx_agg_cmp *agg;
@@ -857,7 +870,10 @@ static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx,
 		struct rx_bd *prod_bd;
 		struct page *page;
 
-		agg = bnxt_get_agg(bp, cpr, idx, start + i);
+		if (p5_tpa)
+			agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, start + i);
+		else
+			agg = bnxt_get_agg(bp, cpr, idx, start + i);
 		cons = agg->rx_agg_cmp_opaque;
 		__clear_bit(cons, rxr->rx_agg_bmap);
 
@@ -974,8 +990,12 @@ static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
 	struct pci_dev *pdev = bp->pdev;
 	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
 	u16 prod = rxr->rx_agg_prod;
+	bool p5_tpa = false;
 	u32 i;
 
+	if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa)
+		p5_tpa = true;
+
 	for (i = 0; i < agg_bufs; i++) {
 		u16 cons, frag_len;
 		struct rx_agg_cmp *agg;
@@ -983,7 +1003,10 @@ static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
 		struct page *page;
 		dma_addr_t mapping;
 
-		agg = bnxt_get_agg(bp, cpr, idx, i);
+		if (p5_tpa)
+			agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, i);
+		else
+			agg = bnxt_get_agg(bp, cpr, idx, i);
 		cons = agg->rx_agg_cmp_opaque;
 		frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) &
 			    RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT;
@@ -1089,6 +1112,9 @@ static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
 	} else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
 		struct rx_tpa_end_cmp *tpa_end = cmp;
 
+		if (bp->flags & BNXT_FLAG_CHIP_P5)
+			return 0;
+
 		agg_bufs = TPA_END_AGG_BUFS(tpa_end);
 	}
 
@@ -1130,22 +1156,27 @@ static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
 			   struct rx_tpa_start_cmp *tpa_start,
 			   struct rx_tpa_start_cmp_ext *tpa_start1)
 {
-	u8 agg_id = TPA_START_AGG_ID(tpa_start);
-	u16 cons, prod;
-	struct bnxt_tpa_info *tpa_info;
 	struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
+	struct bnxt_tpa_info *tpa_info;
+	u16 cons, prod, agg_id;
 	struct rx_bd *prod_bd;
 	dma_addr_t mapping;
 
+	if (bp->flags & BNXT_FLAG_CHIP_P5)
+		agg_id = TPA_START_AGG_ID_P5(tpa_start);
+	else
+		agg_id = TPA_START_AGG_ID(tpa_start);
 	cons = tpa_start->rx_tpa_start_cmp_opaque;
 	prod = rxr->rx_prod;
 	cons_rx_buf = &rxr->rx_buf_ring[cons];
 	prod_rx_buf = &rxr->rx_buf_ring[prod];
 	tpa_info = &rxr->rx_tpa[agg_id];
 
-	if (unlikely(cons != rxr->rx_next_cons)) {
-		netdev_warn(bp->dev, "TPA cons %x != expected cons %x\n",
-			    cons, rxr->rx_next_cons);
+	if (unlikely(cons != rxr->rx_next_cons ||
+		     TPA_START_ERROR(tpa_start))) {
+		netdev_warn(bp->dev, "TPA cons %x, expected cons %x, error code %x\n",
+			    cons, rxr->rx_next_cons,
+			    TPA_START_ERROR_CODE(tpa_start1));
 		bnxt_sched_reset(bp, rxr);
 		return;
 	}
@@ -1190,6 +1221,7 @@ static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
 	tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2);
 	tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata);
 	tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info);
+	tpa_info->agg_count = 0;
 
 	rxr->rx_prod = NEXT_RX(prod);
 	cons = NEXT_RX(cons);
@@ -1363,7 +1395,10 @@ static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp,
 	skb_shinfo(skb)->gso_size =
 		le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len);
 	skb_shinfo(skb)->gso_type = tpa_info->gso_type;
-	payload_off = TPA_END_PAYLOAD_OFF(tpa_end);
+	if (bp->flags & BNXT_FLAG_CHIP_P5)
+		payload_off = TPA_END_PAYLOAD_OFF_P5(tpa_end1);
+	else
+		payload_off = TPA_END_PAYLOAD_OFF(tpa_end);
 	skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb);
 	if (likely(skb))
 		tcp_gro_complete(skb);
@@ -1391,14 +1426,14 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 {
 	struct bnxt_napi *bnapi = cpr->bnapi;
 	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
-	u8 agg_id = TPA_END_AGG_ID(tpa_end);
 	u8 *data_ptr, agg_bufs;
 	unsigned int len;
 	struct bnxt_tpa_info *tpa_info;
 	dma_addr_t mapping;
 	struct sk_buff *skb;
-	u16 idx = 0;
+	u16 idx = 0, agg_id;
 	void *data;
+	bool gro;
 
 	if (unlikely(bnapi->in_reset)) {
 		int rc = bnxt_discard_rx(bp, cpr, raw_cons, tpa_end);
@@ -1408,24 +1443,39 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 		return NULL;
 	}
 
-	tpa_info = &rxr->rx_tpa[agg_id];
+	if (bp->flags & BNXT_FLAG_CHIP_P5) {
+		agg_id = TPA_END_AGG_ID_P5(tpa_end);
+		agg_bufs = TPA_END_AGG_BUFS_P5(tpa_end1);
+		tpa_info = &rxr->rx_tpa[agg_id];
+		if (unlikely(agg_bufs != tpa_info->agg_count)) {
+			netdev_warn(bp->dev, "TPA end agg_buf %d != expected agg_bufs %d\n",
+				    agg_bufs, tpa_info->agg_count);
+			agg_bufs = tpa_info->agg_count;
+		}
+		tpa_info->agg_count = 0;
+		*event |= BNXT_AGG_EVENT;
+		idx = agg_id;
+		gro = !!(bp->flags & BNXT_FLAG_GRO);
+	} else {
+		agg_id = TPA_END_AGG_ID(tpa_end);
+		agg_bufs = TPA_END_AGG_BUFS(tpa_end);
+		tpa_info = &rxr->rx_tpa[agg_id];
+		idx = RING_CMP(*raw_cons);
+		if (agg_bufs) {
+			if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons))
+				return ERR_PTR(-EBUSY);
+
+			*event |= BNXT_AGG_EVENT;
+			idx = NEXT_CMP(idx);
+		}
+		gro = !!TPA_END_GRO(tpa_end);
+	}
 	data = tpa_info->data;
 	data_ptr = tpa_info->data_ptr;
 	prefetch(data_ptr);
 	len = tpa_info->len;
 	mapping = tpa_info->mapping;
 
-	agg_bufs = TPA_END_AGG_BUFS(tpa_end);
-
-	if (agg_bufs) {
-		idx = RING_CMP(*raw_cons);
-		if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons))
-			return ERR_PTR(-EBUSY);
-
-		*event |= BNXT_AGG_EVENT;
-		idx = NEXT_CMP(idx);
-	}
-
 	if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) {
 		bnxt_abort_tpa(cpr, idx, agg_bufs);
 		if (agg_bufs > MAX_SKB_FRAGS)
@@ -1498,7 +1548,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 			(tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3;
 	}
 
-	if (TPA_END_GRO(tpa_end))
+	if (gro)
 		skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb);
 
 	return skb;
@@ -10785,7 +10835,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 #endif
 	if (BNXT_SUPPORTS_TPA(bp)) {
 		bp->gro_func = bnxt_gro_func_5730x;
-		if (BNXT_CHIP_P4(bp))
+		if (BNXT_CHIP_P4_PLUS(bp))
 			bp->gro_func = bnxt_gro_func_5731x;
 	}
 	if (!BNXT_CHIP_P4_PLUS(bp))
-- 
2.5.1

[PATCH net-next 09/16] bnxt_en: Add TPA ID mapping logic for 57500 chips.

[Michael Chan]

The new TPA feature on 57500 supports a larger number of concurrent TPAs
(up to 1024) divided among the functions.  We need to add some logic to
map the hardware TPA ID to a software index that keeps track of each TPA
in progress.  A 1:1 direct mapping without translation would be too
wasteful as we would have to allocate 1024 TPA structures for each RX
ring on each PCI function.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 46 +++++++++++++++++++++++++++++--
 drivers/net/ethernet/broadcom/bnxt/bnxt.h |  9 ++++++
 2 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 535b4c1..e5b1477 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1152,6 +1152,33 @@ static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr)
 	rxr->rx_next_cons = 0xffff;
 }
 
+static u16 bnxt_alloc_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id)
+{
+	struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;
+	u16 idx = agg_id & MAX_TPA_P5_MASK;
+
+	if (test_bit(idx, map->agg_idx_bmap))
+		idx = find_first_zero_bit(map->agg_idx_bmap,
+					  BNXT_AGG_IDX_BMAP_SIZE);
+	__set_bit(idx, map->agg_idx_bmap);
+	map->agg_id_tbl[agg_id] = idx;
+	return idx;
+}
+
+static void bnxt_free_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx)
+{
+	struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;
+
+	__clear_bit(idx, map->agg_idx_bmap);
+}
+
+static u16 bnxt_lookup_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id)
+{
+	struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;
+
+	return map->agg_id_tbl[agg_id];
+}
+
 static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
 			   struct rx_tpa_start_cmp *tpa_start,
 			   struct rx_tpa_start_cmp_ext *tpa_start1)
@@ -1162,10 +1189,12 @@ static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
 	struct rx_bd *prod_bd;
 	dma_addr_t mapping;
 
-	if (bp->flags & BNXT_FLAG_CHIP_P5)
+	if (bp->flags & BNXT_FLAG_CHIP_P5) {
 		agg_id = TPA_START_AGG_ID_P5(tpa_start);
-	else
+		agg_id = bnxt_alloc_agg_idx(rxr, agg_id);
+	} else {
 		agg_id = TPA_START_AGG_ID(tpa_start);
+	}
 	cons = tpa_start->rx_tpa_start_cmp_opaque;
 	prod = rxr->rx_prod;
 	cons_rx_buf = &rxr->rx_buf_ring[cons];
@@ -1445,6 +1474,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 
 	if (bp->flags & BNXT_FLAG_CHIP_P5) {
 		agg_id = TPA_END_AGG_ID_P5(tpa_end);
+		agg_id = bnxt_lookup_agg_idx(rxr, agg_id);
 		agg_bufs = TPA_END_AGG_BUFS_P5(tpa_end1);
 		tpa_info = &rxr->rx_tpa[agg_id];
 		if (unlikely(agg_bufs != tpa_info->agg_count)) {
@@ -1454,6 +1484,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
 		}
 		tpa_info->agg_count = 0;
 		*event |= BNXT_AGG_EVENT;
+		bnxt_free_agg_idx(rxr, agg_id);
 		idx = agg_id;
 		gro = !!(bp->flags & BNXT_FLAG_GRO);
 	} else {
@@ -1560,6 +1591,7 @@ static void bnxt_tpa_agg(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
 	u16 agg_id = TPA_AGG_AGG_ID(rx_agg);
 	struct bnxt_tpa_info *tpa_info;
 
+	agg_id = bnxt_lookup_agg_idx(rxr, agg_id);
 	tpa_info = &rxr->rx_tpa[agg_id];
 	BUG_ON(tpa_info->agg_count >= MAX_SKB_FRAGS);
 	tpa_info->agg_arr[tpa_info->agg_count++] = *rx_agg;
@@ -2383,6 +2415,7 @@ static void bnxt_free_rx_skbs(struct bnxt *bp)
 	max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT;
 	for (i = 0; i < bp->rx_nr_rings; i++) {
 		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
+		struct bnxt_tpa_idx_map *map;
 		int j;
 
 		if (rxr->rx_tpa) {
@@ -2453,6 +2486,9 @@ static void bnxt_free_rx_skbs(struct bnxt *bp)
 			__free_page(rxr->rx_page);
 			rxr->rx_page = NULL;
 		}
+		map = rxr->rx_tpa_idx_map;
+		if (map)
+			memset(map->agg_idx_bmap, 0, sizeof(map->agg_idx_bmap));
 	}
 }
 
@@ -2548,6 +2584,8 @@ static void bnxt_free_tpa_info(struct bnxt *bp)
 	for (i = 0; i < bp->rx_nr_rings; i++) {
 		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
 
+		kfree(rxr->rx_tpa_idx_map);
+		rxr->rx_tpa_idx_map = NULL;
 		if (rxr->rx_tpa) {
 			kfree(rxr->rx_tpa[0].agg_arr);
 			rxr->rx_tpa[0].agg_arr = NULL;
@@ -2586,6 +2624,10 @@ static int bnxt_alloc_tpa_info(struct bnxt *bp)
 			return -ENOMEM;
 		for (j = 1; j < bp->max_tpa; j++)
 			rxr->rx_tpa[j].agg_arr = agg + j * MAX_SKB_FRAGS;
+		rxr->rx_tpa_idx_map = kzalloc(sizeof(*rxr->rx_tpa_idx_map),
+					      GFP_KERNEL);
+		if (!rxr->rx_tpa_idx_map)
+			return -ENOMEM;
 	}
 	return 0;
 }
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 290f426..309cf99 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -555,6 +555,7 @@ struct nqe_cn {
 
 #define MAX_TPA		64
 #define MAX_TPA_P5	256
+#define MAX_TPA_P5_MASK	(MAX_TPA_P5 - 1)
 #define MAX_TPA_SEGS_P5	0x3f
 
 #if (BNXT_PAGE_SHIFT == 16)
@@ -841,6 +842,13 @@ struct bnxt_tpa_info {
 	struct rx_agg_cmp	*agg_arr;
 };
 
+#define BNXT_AGG_IDX_BMAP_SIZE	(MAX_TPA_P5 / BITS_PER_LONG)
+
+struct bnxt_tpa_idx_map {
+	u16		agg_id_tbl[1024];
+	unsigned long	agg_idx_bmap[BNXT_AGG_IDX_BMAP_SIZE];
+};
+
 struct bnxt_rx_ring_info {
 	struct bnxt_napi	*bnapi;
 	u16			rx_prod;
@@ -868,6 +876,7 @@ struct bnxt_rx_ring_info {
 	dma_addr_t		rx_agg_desc_mapping[MAX_RX_AGG_PAGES];
 
 	struct bnxt_tpa_info	*rx_tpa;
+	struct bnxt_tpa_idx_map *rx_tpa_idx_map;
 
 	struct bnxt_ring_struct	rx_ring_struct;
 	struct bnxt_ring_struct	rx_agg_ring_struct;
-- 
2.5.1

[PATCH net-next 10/16] bnxt_en: Add hardware GRO setup function for 57500 chips.

[Michael Chan]

Add a more optimized hardware GRO function to setup the SKB on 57500
chips.  Some workaround code is no longer needed on 57500 chips and
the pseudo checksum is also calculated in hardware, so no need to
do the software pseudo checksum in the driver.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 33 ++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index e5b1477..36b58df 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1359,6 +1359,35 @@ static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
 	return skb;
 }
 
+static struct sk_buff *bnxt_gro_func_5750x(struct bnxt_tpa_info *tpa_info,
+					   int payload_off, int tcp_ts,
+					   struct sk_buff *skb)
+{
+#ifdef CONFIG_INET
+	u16 outer_ip_off, inner_ip_off, inner_mac_off;
+	u32 hdr_info = tpa_info->hdr_info;
+	int iphdr_len, nw_off;
+
+	inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info);
+	inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info);
+	outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info);
+
+	nw_off = inner_ip_off - ETH_HLEN;
+	skb_set_network_header(skb, nw_off);
+	iphdr_len = (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) ?
+		     sizeof(struct ipv6hdr) : sizeof(struct iphdr);
+	skb_set_transport_header(skb, nw_off + iphdr_len);
+
+	if (inner_mac_off) { /* tunnel */
+		__be16 proto = *((__be16 *)(skb->data + outer_ip_off -
+					    ETH_HLEN - 2));
+
+		bnxt_gro_tunnel(skb, proto);
+	}
+#endif
+	return skb;
+}
+
 #define BNXT_IPV4_HDR_SIZE	(sizeof(struct iphdr) + sizeof(struct tcphdr))
 #define BNXT_IPV6_HDR_SIZE	(sizeof(struct ipv6hdr) + sizeof(struct tcphdr))
 
@@ -10877,8 +10906,10 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 #endif
 	if (BNXT_SUPPORTS_TPA(bp)) {
 		bp->gro_func = bnxt_gro_func_5730x;
-		if (BNXT_CHIP_P4_PLUS(bp))
+		if (BNXT_CHIP_P4(bp))
 			bp->gro_func = bnxt_gro_func_5731x;
+		else if (BNXT_CHIP_P5(bp))
+			bp->gro_func = bnxt_gro_func_5750x;
 	}
 	if (!BNXT_CHIP_P4_PLUS(bp))
 		bp->flags |= BNXT_FLAG_DOUBLE_DB;
-- 
2.5.1

[PATCH net-next 11/16] bnxt_en: Refactor ethtool ring statistics logic.

[Michael Chan]

The current code assumes that the per ring statistics counters are
fixed.  In newer chips that support a newer version of TPA, the
TPA counters are also changed.  Refactor the code by defining these
counter names in arrays so that it is easy to add a new array for
a new set of counters supported by the newer chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 120 +++++++++++++---------
 1 file changed, 70 insertions(+), 50 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 1eb590e..a3a7bec 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -137,7 +137,36 @@ static int bnxt_set_coalesce(struct net_device *dev,
 	return rc;
 }
 
-#define BNXT_NUM_STATS	22
+static const char * const bnxt_ring_stats_str[] = {
+	"rx_ucast_packets",
+	"rx_mcast_packets",
+	"rx_bcast_packets",
+	"rx_discards",
+	"rx_drops",
+	"rx_ucast_bytes",
+	"rx_mcast_bytes",
+	"rx_bcast_bytes",
+	"tx_ucast_packets",
+	"tx_mcast_packets",
+	"tx_bcast_packets",
+	"tx_discards",
+	"tx_drops",
+	"tx_ucast_bytes",
+	"tx_mcast_bytes",
+	"tx_bcast_bytes",
+};
+
+static const char * const bnxt_ring_tpa_stats_str[] = {
+	"tpa_packets",
+	"tpa_bytes",
+	"tpa_events",
+	"tpa_aborts",
+};
+
+static const char * const bnxt_ring_sw_stats_str[] = {
+	"rx_l4_csum_errors",
+	"missed_irqs",
+};
 
 #define BNXT_RX_STATS_ENTRY(counter)	\
 	{ BNXT_RX_STATS_OFFSET(counter), __stringify(counter) }
@@ -432,9 +461,20 @@ static const struct {
 	 ARRAY_SIZE(bnxt_tx_pkts_pri_arr))
 #define BNXT_NUM_PCIE_STATS ARRAY_SIZE(bnxt_pcie_stats_arr)
 
+static int bnxt_get_num_ring_stats(struct bnxt *bp)
+{
+	int num_stats;
+
+	num_stats = ARRAY_SIZE(bnxt_ring_stats_str) +
+		    ARRAY_SIZE(bnxt_ring_sw_stats_str);
+	if (BNXT_SUPPORTS_TPA(bp))
+		num_stats += ARRAY_SIZE(bnxt_ring_tpa_stats_str);
+	return num_stats * bp->cp_nr_rings;
+}
+
 static int bnxt_get_num_stats(struct bnxt *bp)
 {
-	int num_stats = BNXT_NUM_STATS * bp->cp_nr_rings;
+	int num_stats = bnxt_get_num_ring_stats(bp);
 
 	num_stats += BNXT_NUM_SW_FUNC_STATS;
 
@@ -475,10 +515,13 @@ static void bnxt_get_ethtool_stats(struct net_device *dev,
 {
 	u32 i, j = 0;
 	struct bnxt *bp = netdev_priv(dev);
-	u32 stat_fields = sizeof(struct ctx_hw_stats) / 8;
+	u32 stat_fields = ARRAY_SIZE(bnxt_ring_stats_str);
+
+	if (BNXT_SUPPORTS_TPA(bp))
+		stat_fields += ARRAY_SIZE(bnxt_ring_tpa_stats_str);
 
 	if (!bp->bnapi) {
-		j += BNXT_NUM_STATS * bp->cp_nr_rings + BNXT_NUM_SW_FUNC_STATS;
+		j += bnxt_get_num_ring_stats(bp) + BNXT_NUM_SW_FUNC_STATS;
 		goto skip_ring_stats;
 	}
 
@@ -566,56 +609,33 @@ static void bnxt_get_ethtool_stats(struct net_device *dev,
 static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 {
 	struct bnxt *bp = netdev_priv(dev);
-	u32 i;
+	u32 i, j, num_str;
 
 	switch (stringset) {
-	/* The number of strings must match BNXT_NUM_STATS defined above. */
 	case ETH_SS_STATS:
 		for (i = 0; i < bp->cp_nr_rings; i++) {
-			sprintf(buf, "[%d]: rx_ucast_packets", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_mcast_packets", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_bcast_packets", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_discards", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_drops", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_ucast_bytes", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_mcast_bytes", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_bcast_bytes", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_ucast_packets", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_mcast_packets", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_bcast_packets", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_discards", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_drops", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_ucast_bytes", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_mcast_bytes", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tx_bcast_bytes", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tpa_packets", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tpa_bytes", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tpa_events", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: tpa_aborts", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: rx_l4_csum_errors", i);
-			buf += ETH_GSTRING_LEN;
-			sprintf(buf, "[%d]: missed_irqs", i);
-			buf += ETH_GSTRING_LEN;
+			num_str = ARRAY_SIZE(bnxt_ring_stats_str);
+			for (j = 0; j < num_str; j++) {
+				sprintf(buf, "[%d]: %s", i,
+					bnxt_ring_stats_str[j]);
+				buf += ETH_GSTRING_LEN;
+			}
+			if (!BNXT_SUPPORTS_TPA(bp))
+				goto skip_tpa_stats;
+
+			num_str = ARRAY_SIZE(bnxt_ring_tpa_stats_str);
+			for (j = 0; j < num_str; j++) {
+				sprintf(buf, "[%d]: %s", i,
+					bnxt_ring_tpa_stats_str[j]);
+				buf += ETH_GSTRING_LEN;
+			}
+skip_tpa_stats:
+			num_str = ARRAY_SIZE(bnxt_ring_sw_stats_str);
+			for (j = 0; j < num_str; j++) {
+				sprintf(buf, "[%d]: %s", i,
+					bnxt_ring_sw_stats_str[j]);
+				buf += ETH_GSTRING_LEN;
+			}
 		}
 		for (i = 0; i < BNXT_NUM_SW_FUNC_STATS; i++) {
 			strcpy(buf, bnxt_sw_func_stats[i].string);
-- 
2.5.1

[PATCH net-next 12/16] bnxt_en: Allocate the larger per-ring statistics block for 57500 chips.

[Michael Chan]

The new TPA implemantation has additional TPA counters that extend the
per-ring statistics block.  Allocate the proper size accordingly.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 10 ++++++++--
 drivers/net/ethernet/broadcom/bnxt/bnxt.h |  1 +
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 36b58df..38ac007 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3635,7 +3635,7 @@ static void bnxt_free_ring_stats(struct bnxt *bp)
 	if (!bp->bnapi)
 		return;
 
-	size = sizeof(struct ctx_hw_stats);
+	size = bp->hw_ring_stats_size;
 
 	for (i = 0; i < bp->cp_nr_rings; i++) {
 		struct bnxt_napi *bnapi = bp->bnapi[i];
@@ -3654,7 +3654,7 @@ static int bnxt_alloc_stats(struct bnxt *bp)
 	u32 size, i;
 	struct pci_dev *pdev = bp->pdev;
 
-	size = sizeof(struct ctx_hw_stats);
+	size = bp->hw_ring_stats_size;
 
 	for (i = 0; i < bp->cp_nr_rings; i++) {
 		struct bnxt_napi *bnapi = bp->bnapi[i];
@@ -4989,6 +4989,11 @@ static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp)
 		    VNIC_QCAPS_RESP_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_CAP)
 			bp->flags |= BNXT_FLAG_ROCE_MIRROR_CAP;
 		bp->max_tpa_v2 = le16_to_cpu(resp->max_aggs_supported);
+		if (bp->max_tpa_v2)
+			bp->hw_ring_stats_size =
+				sizeof(struct ctx_hw_stats_ext);
+		else
+			bp->hw_ring_stats_size = sizeof(struct ctx_hw_stats);
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
 	return rc;
@@ -6186,6 +6191,7 @@ static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp)
 
 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_ALLOC, -1, -1);
 
+	req.stats_dma_length = cpu_to_le16(bp->hw_ring_stats_size);
 	req.update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000);
 
 	mutex_lock(&bp->hwrm_cmd_lock);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 309cf99..6c710d7 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1607,6 +1607,7 @@ struct bnxt {
 	int			hw_port_stats_size;
 	u16			fw_rx_stats_ext_size;
 	u16			fw_tx_stats_ext_size;
+	u16			hw_ring_stats_size;
 	u8			pri2cos[8];
 	u8			pri2cos_valid;
 
-- 
2.5.1

[PATCH net-next 13/16] bnxt_en: Support TPA counters on 57500 chips.

[Michael Chan]

Support the new expanded TPA v2 counters on 57500 B0 chips for
ethtool -S.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 41 +++++++++++++++++------
 1 file changed, 31 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index a3a7bec..3a3d8a9 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -163,6 +163,14 @@ static const char * const bnxt_ring_tpa_stats_str[] = {
 	"tpa_aborts",
 };
 
+static const char * const bnxt_ring_tpa2_stats_str[] = {
+	"rx_tpa_eligible_pkt",
+	"rx_tpa_eligible_bytes",
+	"rx_tpa_pkt",
+	"rx_tpa_bytes",
+	"rx_tpa_errors",
+};
+
 static const char * const bnxt_ring_sw_stats_str[] = {
 	"rx_l4_csum_errors",
 	"missed_irqs",
@@ -461,14 +469,23 @@ static const struct {
 	 ARRAY_SIZE(bnxt_tx_pkts_pri_arr))
 #define BNXT_NUM_PCIE_STATS ARRAY_SIZE(bnxt_pcie_stats_arr)
 
+static int bnxt_get_num_tpa_ring_stats(struct bnxt *bp)
+{
+	if (BNXT_SUPPORTS_TPA(bp)) {
+		if (bp->max_tpa_v2)
+			return ARRAY_SIZE(bnxt_ring_tpa2_stats_str);
+		return ARRAY_SIZE(bnxt_ring_tpa_stats_str);
+	}
+	return 0;
+}
+
 static int bnxt_get_num_ring_stats(struct bnxt *bp)
 {
 	int num_stats;
 
 	num_stats = ARRAY_SIZE(bnxt_ring_stats_str) +
-		    ARRAY_SIZE(bnxt_ring_sw_stats_str);
-	if (BNXT_SUPPORTS_TPA(bp))
-		num_stats += ARRAY_SIZE(bnxt_ring_tpa_stats_str);
+		    ARRAY_SIZE(bnxt_ring_sw_stats_str) +
+		    bnxt_get_num_tpa_ring_stats(bp);
 	return num_stats * bp->cp_nr_rings;
 }
 
@@ -515,10 +532,8 @@ static void bnxt_get_ethtool_stats(struct net_device *dev,
 {
 	u32 i, j = 0;
 	struct bnxt *bp = netdev_priv(dev);
-	u32 stat_fields = ARRAY_SIZE(bnxt_ring_stats_str);
-
-	if (BNXT_SUPPORTS_TPA(bp))
-		stat_fields += ARRAY_SIZE(bnxt_ring_tpa_stats_str);
+	u32 stat_fields = ARRAY_SIZE(bnxt_ring_stats_str) +
+			  bnxt_get_num_tpa_ring_stats(bp);
 
 	if (!bp->bnapi) {
 		j += bnxt_get_num_ring_stats(bp) + BNXT_NUM_SW_FUNC_STATS;
@@ -609,6 +624,7 @@ static void bnxt_get_ethtool_stats(struct net_device *dev,
 static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 {
 	struct bnxt *bp = netdev_priv(dev);
+	static const char * const *str;
 	u32 i, j, num_str;
 
 	switch (stringset) {
@@ -623,10 +639,15 @@ static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 			if (!BNXT_SUPPORTS_TPA(bp))
 				goto skip_tpa_stats;
 
-			num_str = ARRAY_SIZE(bnxt_ring_tpa_stats_str);
+			if (bp->max_tpa_v2) {
+				num_str = ARRAY_SIZE(bnxt_ring_tpa2_stats_str);
+				str = bnxt_ring_tpa2_stats_str;
+			} else {
+				num_str = ARRAY_SIZE(bnxt_ring_tpa_stats_str);
+				str = bnxt_ring_tpa_stats_str;
+			}
 			for (j = 0; j < num_str; j++) {
-				sprintf(buf, "[%d]: %s", i,
-					bnxt_ring_tpa_stats_str[j]);
+				sprintf(buf, "[%d]: %s", i, str[j]);
 				buf += ETH_GSTRING_LEN;
 			}
 skip_tpa_stats:
-- 
2.5.1

[PATCH net-next 14/16] bnxt_en: Refactor bnxt_init_one() and turn on TPA support on 57500 chips.

[Michael Chan]

With the new TPA feature in the 57500 chips, we need to discover the
feature first before setting up the netdev features.  Refactor the
the firmware probe and init logic more cleanly into 2 functions and
and make these calls before setting up the netdev features.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 116 +++++++++++++++++-------------
 drivers/net/ethernet/broadcom/bnxt/bnxt.h |   4 +-
 2 files changed, 67 insertions(+), 53 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 38ac007..9fe81fa 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -9896,6 +9896,68 @@ static void bnxt_init_dflt_coal(struct bnxt *bp)
 	bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS;
 }
 
+static int bnxt_fw_init_one_p1(struct bnxt *bp)
+{
+	int rc;
+
+	bp->fw_cap = 0;
+	rc = bnxt_hwrm_ver_get(bp);
+	if (rc)
+		return rc;
+
+	if (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL) {
+		rc = bnxt_alloc_kong_hwrm_resources(bp);
+		if (rc)
+			bp->fw_cap &= ~BNXT_FW_CAP_KONG_MB_CHNL;
+	}
+
+	if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) ||
+	    bp->hwrm_max_ext_req_len > BNXT_HWRM_MAX_REQ_LEN) {
+		rc = bnxt_alloc_hwrm_short_cmd_req(bp);
+		if (rc)
+			return rc;
+	}
+	rc = bnxt_hwrm_func_reset(bp);
+	if (rc)
+		return -ENODEV;
+
+	bnxt_hwrm_fw_set_time(bp);
+	return 0;
+}
+
+static int bnxt_fw_init_one_p2(struct bnxt *bp)
+{
+	int rc;
+
+	/* Get the MAX capabilities for this function */
+	rc = bnxt_hwrm_func_qcaps(bp);
+	if (rc) {
+		netdev_err(bp->dev, "hwrm query capability failure rc: %x\n",
+			   rc);
+		return -ENODEV;
+	}
+
+	rc = bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(bp);
+	if (rc)
+		netdev_warn(bp->dev, "hwrm query adv flow mgnt failure rc: %d\n",
+			    rc);
+
+	rc = bnxt_hwrm_func_drv_rgtr(bp);
+	if (rc)
+		return -ENODEV;
+
+	rc = bnxt_hwrm_func_rgtr_async_events(bp, NULL, 0);
+	if (rc)
+		return -ENODEV;
+
+	bnxt_hwrm_func_qcfg(bp);
+	bnxt_hwrm_vnic_qcaps(bp);
+	bnxt_hwrm_port_led_qcaps(bp);
+	bnxt_ethtool_init(bp);
+	bnxt_dcb_init(bp);
+	return 0;
+}
+
 static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
 {
 	int rc;
@@ -10851,32 +10913,18 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto init_err_pci_clean;
 
 	mutex_init(&bp->hwrm_cmd_lock);
-	rc = bnxt_hwrm_ver_get(bp);
+
+	rc = bnxt_fw_init_one_p1(bp);
 	if (rc)
 		goto init_err_pci_clean;
 
-	if (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL) {
-		rc = bnxt_alloc_kong_hwrm_resources(bp);
-		if (rc)
-			bp->fw_cap &= ~BNXT_FW_CAP_KONG_MB_CHNL;
-	}
-
-	if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) ||
-	    bp->hwrm_max_ext_req_len > BNXT_HWRM_MAX_REQ_LEN) {
-		rc = bnxt_alloc_hwrm_short_cmd_req(bp);
-		if (rc)
-			goto init_err_pci_clean;
-	}
-
 	if (BNXT_CHIP_P5(bp))
 		bp->flags |= BNXT_FLAG_CHIP_P5;
 
-	rc = bnxt_hwrm_func_reset(bp);
+	rc = bnxt_fw_init_one_p2(bp);
 	if (rc)
 		goto init_err_pci_clean;
 
-	bnxt_hwrm_fw_set_time(bp);
-
 	dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
 			   NETIF_F_TSO | NETIF_F_TSO6 |
 			   NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
@@ -10920,37 +10968,8 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!BNXT_CHIP_P4_PLUS(bp))
 		bp->flags |= BNXT_FLAG_DOUBLE_DB;
 
-	rc = bnxt_hwrm_func_drv_rgtr(bp);
-	if (rc)
-		goto init_err_pci_clean;
-
-	rc = bnxt_hwrm_func_rgtr_async_events(bp, NULL, 0);
-	if (rc)
-		goto init_err_pci_clean;
-
 	bp->ulp_probe = bnxt_ulp_probe;
 
-	rc = bnxt_hwrm_queue_qportcfg(bp);
-	if (rc) {
-		netdev_err(bp->dev, "hwrm query qportcfg failure rc: %x\n",
-			   rc);
-		rc = -1;
-		goto init_err_pci_clean;
-	}
-	/* Get the MAX capabilities for this function */
-	rc = bnxt_hwrm_func_qcaps(bp);
-	if (rc) {
-		netdev_err(bp->dev, "hwrm query capability failure rc: %x\n",
-			   rc);
-		rc = -1;
-		goto init_err_pci_clean;
-	}
-
-	rc = bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(bp);
-	if (rc)
-		netdev_warn(bp->dev, "hwrm query adv flow mgnt failure rc: %d\n",
-			    rc);
-
 	rc = bnxt_init_mac_addr(bp);
 	if (rc) {
 		dev_err(&pdev->dev, "Unable to initialize mac address.\n");
@@ -10964,11 +10983,6 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		if (rc)
 			goto init_err_pci_clean;
 	}
-	bnxt_hwrm_func_qcfg(bp);
-	bnxt_hwrm_vnic_qcaps(bp);
-	bnxt_hwrm_port_led_qcaps(bp);
-	bnxt_ethtool_init(bp);
-	bnxt_dcb_init(bp);
 
 	/* MTU range: 60 - FW defined max */
 	dev->min_mtu = ETH_ZLEN;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 6c710d7..c61af57 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1459,8 +1459,8 @@ struct bnxt {
 #define BNXT_CHIP_TYPE_NITRO_A0(bp) ((bp)->flags & BNXT_FLAG_CHIP_NITRO_A0)
 #define BNXT_RX_PAGE_MODE(bp)	((bp)->flags & BNXT_FLAG_RX_PAGE_MODE)
 #define BNXT_SUPPORTS_TPA(bp)	(!BNXT_CHIP_TYPE_NITRO_A0(bp) &&	\
-				 !(bp->flags & BNXT_FLAG_CHIP_P5) &&	\
-				 !is_kdump_kernel())
+				 (!((bp)->flags & BNXT_FLAG_CHIP_P5) ||	\
+				  (bp)->max_tpa_v2) && !is_kdump_kernel())
 
 /* Chip class phase 5 */
 #define BNXT_CHIP_P5(bp)			\
-- 
2.5.1

[PATCH net-next 15/16] bnxt_en: Support all variants of the 5750X chip family.

[Michael Chan]

Define the 57508, 57504, and 57502 chip IDs that are all part of the
BNXT_CHIP_P5 family of chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index c61af57..e326208 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1362,7 +1362,9 @@ struct bnxt {
 
 #define CHIP_NUM_5745X		0xd730
 
-#define CHIP_NUM_57500		0x1750
+#define CHIP_NUM_57508		0x1750
+#define CHIP_NUM_57504		0x1751
+#define CHIP_NUM_57502		0x1752
 
 #define CHIP_NUM_58802		0xd802
 #define CHIP_NUM_58804		0xd804
@@ -1464,7 +1466,9 @@ struct bnxt {
 
 /* Chip class phase 5 */
 #define BNXT_CHIP_P5(bp)			\
-	((bp)->chip_num == CHIP_NUM_57500)
+	((bp)->chip_num == CHIP_NUM_57508 ||	\
+	 (bp)->chip_num == CHIP_NUM_57504 ||	\
+	 (bp)->chip_num == CHIP_NUM_57502)
 
 /* Chip class phase 4.x */
 #define BNXT_CHIP_P4(bp)			\
-- 
2.5.1

[PATCH net-next 16/16] bnxt_en: Add PCI IDs for 57500 series NPAR devices.

[Michael Chan]

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 9fe81fa..7a9b92e 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -116,6 +116,9 @@ enum board_idx {
 	BCM57508,
 	BCM57504,
 	BCM57502,
+	BCM57508_NPAR,
+	BCM57504_NPAR,
+	BCM57502_NPAR,
 	BCM58802,
 	BCM58804,
 	BCM58808,
@@ -161,6 +164,9 @@ static const struct {
 	[BCM57508] = { "Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" },
 	[BCM57504] = { "Broadcom BCM57504 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" },
 	[BCM57502] = { "Broadcom BCM57502 NetXtreme-E 10Gb/25Gb/50Gb Ethernet" },
+	[BCM57508_NPAR] = { "Broadcom BCM57508 NetXtreme-E Ethernet Partition" },
+	[BCM57504_NPAR] = { "Broadcom BCM57504 NetXtreme-E Ethernet Partition" },
+	[BCM57502_NPAR] = { "Broadcom BCM57502 NetXtreme-E Ethernet Partition" },
 	[BCM58802] = { "Broadcom BCM58802 NetXtreme-S 10Gb/25Gb/40Gb/50Gb Ethernet" },
 	[BCM58804] = { "Broadcom BCM58804 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
 	[BCM58808] = { "Broadcom BCM58808 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
@@ -209,6 +215,12 @@ static const struct pci_device_id bnxt_pci_tbl[] = {
 	{ PCI_VDEVICE(BROADCOM, 0x1750), .driver_data = BCM57508 },
 	{ PCI_VDEVICE(BROADCOM, 0x1751), .driver_data = BCM57504 },
 	{ PCI_VDEVICE(BROADCOM, 0x1752), .driver_data = BCM57502 },
+	{ PCI_VDEVICE(BROADCOM, 0x1800), .driver_data = BCM57508_NPAR },
+	{ PCI_VDEVICE(BROADCOM, 0x1801), .driver_data = BCM57504_NPAR },
+	{ PCI_VDEVICE(BROADCOM, 0x1802), .driver_data = BCM57502_NPAR },
+	{ PCI_VDEVICE(BROADCOM, 0x1803), .driver_data = BCM57508_NPAR },
+	{ PCI_VDEVICE(BROADCOM, 0x1804), .driver_data = BCM57504_NPAR },
+	{ PCI_VDEVICE(BROADCOM, 0x1805), .driver_data = BCM57502_NPAR },
 	{ PCI_VDEVICE(BROADCOM, 0xd802), .driver_data = BCM58802 },
 	{ PCI_VDEVICE(BROADCOM, 0xd804), .driver_data = BCM58804 },
 #ifdef CONFIG_BNXT_SRIOV
-- 
2.5.1

Re: [PATCH net-next 00/16] bnxt_en: Add TPA (GRO_HW and LRO) on 57500 chips.

[David Miller]

From: Michael Chan <michael.chan@broadcom.com>
Date: Mon, 29 Jul 2019 06:10:17 -0400

> This patchset adds TPA v2 support on the 57500 chips.  TPA v2 is
> different from the legacy TPA scheme on older chips and requires major
> refactoring and restructuring of the existing TPA logic.  The main
> difference is that the new TPA v2 has on-the-fly aggregation buffer
> completions before a TPA packet is completed.  The larger aggregation
> ID space also requires a new ID mapping logic to make it more
> memory efficient.

Series applied, but please explain something to me.

I thought initially while reviewing this that patch #5 makes the series
non-bisectable because this only includes the logic that appends new
entries to the agg array but lacks the changes to reset the agg count
at TPE end time (which occurs in patch #8).

However I then realized that you haven't turned on the logic yet that
can result in CMP_TYPE_RX_TPA_AGG_CMP entries in this context.

Am I right?

Re: [PATCH net-next 00/16] bnxt_en: Add TPA (GRO_HW and LRO) on 57500 chips.

[Michael Chan]

On Mon, Jul 29, 2019 at 2:24 PM David Miller <davem@davemloft.net> wrote:
>
> From: Michael Chan <michael.chan@broadcom.com>
> Date: Mon, 29 Jul 2019 06:10:17 -0400
>
> > This patchset adds TPA v2 support on the 57500 chips.  TPA v2 is
> > different from the legacy TPA scheme on older chips and requires major
> > refactoring and restructuring of the existing TPA logic.  The main
> > difference is that the new TPA v2 has on-the-fly aggregation buffer
> > completions before a TPA packet is completed.  The larger aggregation
> > ID space also requires a new ID mapping logic to make it more
> > memory efficient.
>
> Series applied, but please explain something to me.
>
> I thought initially while reviewing this that patch #5 makes the series
> non-bisectable because this only includes the logic that appends new
> entries to the agg array but lacks the changes to reset the agg count
> at TPE end time (which occurs in patch #8).
>
> However I then realized that you haven't turned on the logic yet that
> can result in CMP_TYPE_RX_TPA_AGG_CMP entries in this context.
>
> Am I right?

Yes, correct.  Everything is built up incrementally and the new GRO_HW
and LRO features on the new chip can only be enabled after patch #14.

Thanks.