Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Most notable changes in here:

   1) By far the biggest accomplishment, thanks to a large range of
      contributors, is the addition of multi-send for transmit.  This is
      the result of discussions back in Chicago, and the hard work of
      several individuals.

      Now, when the ->ndo_start_xmit() method of a driver sees
      skb->xmit_more as true, it can choose to defer the doorbell
      telling the driver to start processing the new TX queue entires.

      skb->xmit_more means that the generic networking is guaranteed to
      call the driver immediately with another SKB to send.

      There is logic added to the qdisc layer to dequeue multiple
      packets at a time, and the handling mis-predicted offloads in
      software is now done with no locks held.

      Finally, pktgen is extended to have a "burst" parameter that can
      be used to test a multi-send implementation.

      Several drivers have xmit_more support: i40e, igb, ixgbe, mlx4,
      virtio_net

      Adding support is almost trivial, so export more drivers to
      support this optimization soon.

      I want to thank, in no particular or implied order, Jesper
      Dangaard Brouer, Eric Dumazet, Alexander Duyck, Tom Herbert, Jamal
      Hadi Salim, John Fastabend, Florian Westphal, Daniel Borkmann,
      David Tat, Hannes Frederic Sowa, and Rusty Russell.

   2) PTP and timestamping support in bnx2x, from Michal Kalderon.

   3) Allow adjusting the rx_copybreak threshold for a driver via
      ethtool, and add rx_copybreak support to enic driver.  From
      Govindarajulu Varadarajan.

   4) Significant enhancements to the generic PHY layer and the bcm7xxx
      driver in particular (EEE support, auto power down, etc.) from
      Florian Fainelli.

   5) Allow raw buffers to be used for flow dissection, allowing drivers
      to determine the optimal "linear pull" size for devices that DMA
      into pools of pages.  The objective is to get exactly the
      necessary amount of headers into the linear SKB area pre-pulled,
      but no more.  The new interface drivers use is eth_get_headlen().
      From WANG Cong, with driver conversions (several had their own
      by-hand duplicated implementations) by Alexander Duyck and Eric
      Dumazet.

   6) Support checksumming more smoothly and efficiently for
      encapsulations, and add "foo over UDP" facility.  From Tom
      Herbert.

   7) Add Broadcom SF2 switch driver to DSA layer, from Florian
      Fainelli.

   8) eBPF now can load programs via a system call and has an extensive
      testsuite.  Alexei Starovoitov and Daniel Borkmann.

   9) Major overhaul of the packet scheduler to use RCU in several major
      areas such as the classifiers and rate estimators.  From John
      Fastabend.

  10) Add driver for Intel FM10000 Ethernet Switch, from Alexander
      Duyck.

  11) Rearrange TCP_SKB_CB() to reduce cache line misses, from Eric
      Dumazet.

  12) Add Datacenter TCP congestion control algorithm support, From
      Florian Westphal.

  13) Reorganize sk_buff so that __copy_skb_header() is significantly
      faster.  From Eric Dumazet"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1558 commits)
  netlabel: directly return netlbl_unlabel_genl_init()
  net: add netdev_txq_bql_{enqueue, complete}_prefetchw() helpers
  net: description of dma_cookie cause make xmldocs warning
  cxgb4: clean up a type issue
  cxgb4: potential shift wrapping bug
  i40e: skb->xmit_more support
  net: fs_enet: Add NAPI TX
  net: fs_enet: Remove non NAPI RX
  r8169:add support for RTL8168EP
  net_sched: copy exts->type in tcf_exts_change()
  wimax: convert printk to pr_foo()
  af_unix: remove 0 assignment on static
  ipv6: Do not warn for informational ICMP messages, regardless of type.
  Update Intel Ethernet Driver maintainers list
  bridge: Save frag_max_size between PRE_ROUTING and POST_ROUTING
  tipc: fix bug in multicast congestion handling
  net: better IFF_XMIT_DST_RELEASE support
  net/mlx4_en: remove NETDEV_TX_BUSY
  3c59x: fix bad split of cpu_to_le32(pci_map_single())
  net: bcmgenet: fix Tx ring priority programming
  ...

1 files changed, 39 insertions, 79 deletions

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index b88e9b46d957..246310dc8bef 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -44,6 +44,7 @@
 
 #include <linux/mlx5/device.h>
 #include <linux/mlx5/doorbell.h>
+#include <linux/mlx5/mlx5_ifc.h>
 
 enum {
 	MLX5_BOARD_ID_LEN = 64,
@@ -99,81 +100,6 @@ enum {
 };
 
 enum {
-	MLX5_CMD_OP_QUERY_HCA_CAP		= 0x100,
-	MLX5_CMD_OP_QUERY_ADAPTER		= 0x101,
-	MLX5_CMD_OP_INIT_HCA			= 0x102,
-	MLX5_CMD_OP_TEARDOWN_HCA		= 0x103,
-	MLX5_CMD_OP_ENABLE_HCA			= 0x104,
-	MLX5_CMD_OP_DISABLE_HCA			= 0x105,
-	MLX5_CMD_OP_QUERY_PAGES			= 0x107,
-	MLX5_CMD_OP_MANAGE_PAGES		= 0x108,
-	MLX5_CMD_OP_SET_HCA_CAP			= 0x109,
-
-	MLX5_CMD_OP_CREATE_MKEY			= 0x200,
-	MLX5_CMD_OP_QUERY_MKEY			= 0x201,
-	MLX5_CMD_OP_DESTROY_MKEY		= 0x202,
-	MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS	= 0x203,
-
-	MLX5_CMD_OP_CREATE_EQ			= 0x301,
-	MLX5_CMD_OP_DESTROY_EQ			= 0x302,
-	MLX5_CMD_OP_QUERY_EQ			= 0x303,
-
-	MLX5_CMD_OP_CREATE_CQ			= 0x400,
-	MLX5_CMD_OP_DESTROY_CQ			= 0x401,
-	MLX5_CMD_OP_QUERY_CQ			= 0x402,
-	MLX5_CMD_OP_MODIFY_CQ			= 0x403,
-
-	MLX5_CMD_OP_CREATE_QP			= 0x500,
-	MLX5_CMD_OP_DESTROY_QP			= 0x501,
-	MLX5_CMD_OP_RST2INIT_QP			= 0x502,
-	MLX5_CMD_OP_INIT2RTR_QP			= 0x503,
-	MLX5_CMD_OP_RTR2RTS_QP			= 0x504,
-	MLX5_CMD_OP_RTS2RTS_QP			= 0x505,
-	MLX5_CMD_OP_SQERR2RTS_QP		= 0x506,
-	MLX5_CMD_OP_2ERR_QP			= 0x507,
-	MLX5_CMD_OP_RTS2SQD_QP			= 0x508,
-	MLX5_CMD_OP_SQD2RTS_QP			= 0x509,
-	MLX5_CMD_OP_2RST_QP			= 0x50a,
-	MLX5_CMD_OP_QUERY_QP			= 0x50b,
-	MLX5_CMD_OP_CONF_SQP			= 0x50c,
-	MLX5_CMD_OP_MAD_IFC			= 0x50d,
-	MLX5_CMD_OP_INIT2INIT_QP		= 0x50e,
-	MLX5_CMD_OP_SUSPEND_QP			= 0x50f,
-	MLX5_CMD_OP_UNSUSPEND_QP		= 0x510,
-	MLX5_CMD_OP_SQD2SQD_QP			= 0x511,
-	MLX5_CMD_OP_ALLOC_QP_COUNTER_SET	= 0x512,
-	MLX5_CMD_OP_DEALLOC_QP_COUNTER_SET	= 0x513,
-	MLX5_CMD_OP_QUERY_QP_COUNTER_SET	= 0x514,
-
-	MLX5_CMD_OP_CREATE_PSV			= 0x600,
-	MLX5_CMD_OP_DESTROY_PSV			= 0x601,
-	MLX5_CMD_OP_QUERY_PSV			= 0x602,
-	MLX5_CMD_OP_QUERY_SIG_RULE_TABLE	= 0x603,
-	MLX5_CMD_OP_QUERY_BLOCK_SIZE_TABLE	= 0x604,
-
-	MLX5_CMD_OP_CREATE_SRQ			= 0x700,
-	MLX5_CMD_OP_DESTROY_SRQ			= 0x701,
-	MLX5_CMD_OP_QUERY_SRQ			= 0x702,
-	MLX5_CMD_OP_ARM_RQ			= 0x703,
-	MLX5_CMD_OP_RESIZE_SRQ			= 0x704,
-
-	MLX5_CMD_OP_ALLOC_PD			= 0x800,
-	MLX5_CMD_OP_DEALLOC_PD			= 0x801,
-	MLX5_CMD_OP_ALLOC_UAR			= 0x802,
-	MLX5_CMD_OP_DEALLOC_UAR			= 0x803,
-
-	MLX5_CMD_OP_ATTACH_TO_MCG		= 0x806,
-	MLX5_CMD_OP_DETACH_FROM_MCG		= 0x807,
-
-
-	MLX5_CMD_OP_ALLOC_XRCD			= 0x80e,
-	MLX5_CMD_OP_DEALLOC_XRCD		= 0x80f,
-
-	MLX5_CMD_OP_ACCESS_REG			= 0x805,
-	MLX5_CMD_OP_MAX				= 0x810,
-};
-
-enum {
 	MLX5_REG_PCAP		 = 0x5001,
 	MLX5_REG_PMTU		 = 0x5003,
 	MLX5_REG_PTYS		 = 0x5004,
@@ -335,23 +261,30 @@ struct mlx5_port_caps {
 	int	pkey_table_len;
 };
 
-struct mlx5_caps {
+struct mlx5_general_caps {
 	u8	log_max_eq;
 	u8	log_max_cq;
 	u8	log_max_qp;
 	u8	log_max_mkey;
 	u8	log_max_pd;
 	u8	log_max_srq;
+	u8	log_max_strq;
+	u8	log_max_mrw_sz;
+	u8	log_max_bsf_list_size;
+	u8	log_max_klm_list_size;
 	u32	max_cqes;
 	int	max_wqes;
+	u32	max_eqes;
+	u32	max_indirection;
 	int	max_sq_desc_sz;
 	int	max_rq_desc_sz;
+	int	max_dc_sq_desc_sz;
 	u64	flags;
 	u16	stat_rate_support;
 	int	log_max_msg;
 	int	num_ports;
-	int	max_ra_res_qp;
-	int	max_ra_req_qp;
+	u8	log_max_ra_res_qp;
+	u8	log_max_ra_req_qp;
 	int	max_srq_wqes;
 	int	bf_reg_size;
 	int	bf_regs_per_page;
@@ -363,6 +296,19 @@ struct mlx5_caps {
 	u8	log_max_mcg;
 	u32	max_qp_mcg;
 	int	min_page_sz;
+	int	pd_cap;
+	u32	max_qp_counters;
+	u32	pkey_table_size;
+	u8	log_max_ra_req_dc;
+	u8	log_max_ra_res_dc;
+	u32	uar_sz;
+	u8	min_log_pg_sz;
+	u8	log_max_xrcd;
+	u16	log_uar_page_sz;
+};
+
+struct mlx5_caps {
+	struct mlx5_general_caps gen;
 };
 
 struct mlx5_cmd_mailbox {
@@ -429,6 +375,16 @@ struct mlx5_core_mr {
 	u32			pd;
 };
 
+enum mlx5_res_type {
+	MLX5_RES_QP,
+};
+
+struct mlx5_core_rsc_common {
+	enum mlx5_res_type	res;
+	atomic_t		refcount;
+	struct completion	free;
+};
+
 struct mlx5_core_srq {
 	u32		srqn;
 	int		max;
@@ -695,6 +651,9 @@ void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
 int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr);
+int mlx5_cmd_status_to_err_v2(void *ptr);
+int mlx5_core_get_caps(struct mlx5_core_dev *dev, struct mlx5_caps *caps,
+		       u16 opmod);
 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 		  int out_size);
 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
@@ -751,7 +710,7 @@ int mlx5_eq_init(struct mlx5_core_dev *dev);
 void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
-void mlx5_qp_event(struct mlx5_core_dev *dev, u32 qpn, int event_type);
+void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector);
@@ -788,6 +747,7 @@ void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
 			 int npsvs, u32 *sig_index);
 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
+void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
 
 static inline u32 mlx5_mkey_to_idx(u32 mkey)
 {