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

Pull networking updates from David Millar:
 "Here are some highlights from the 2065 networking commits that
  happened this development cycle:

   1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri)

   2) Add a generic XDP driver, so that anyone can test XDP even if they
      lack a networking device whose driver has explicit XDP support
      (me).

   3) Sparc64 now has an eBPF JIT too (me)

   4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei
      Starovoitov)

   5) Make netfitler network namespace teardown less expensive (Florian
      Westphal)

   6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana)

   7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger)

   8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky)

   9) Multiqueue support in stmmac driver (Joao Pinto)

  10) Remove TCP timewait recycling, it never really could possibly work
      well in the real world and timestamp randomization really zaps any
      hint of usability this feature had (Soheil Hassas Yeganeh)

  11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay
      Aleksandrov)

  12) Add socket busy poll support to epoll (Sridhar Samudrala)

  13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso,
      and several others)

  14) IPSEC hw offload infrastructure (Steffen Klassert)"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits)
  tipc: refactor function tipc_sk_recv_stream()
  tipc: refactor function tipc_sk_recvmsg()
  net: thunderx: Optimize page recycling for XDP
  net: thunderx: Support for XDP header adjustment
  net: thunderx: Add support for XDP_TX
  net: thunderx: Add support for XDP_DROP
  net: thunderx: Add basic XDP support
  net: thunderx: Cleanup receive buffer allocation
  net: thunderx: Optimize CQE_TX handling
  net: thunderx: Optimize RBDR descriptor handling
  net: thunderx: Support for page recycling
  ipx: call ipxitf_put() in ioctl error path
  net: sched: add helpers to handle extended actions
  qed*: Fix issues in the ptp filter config implementation.
  qede: Fix concurrency issue in PTP Tx path processing.
  stmmac: Add support for SIMATIC IOT2000 platform
  net: hns: fix ethtool_get_strings overflow in hns driver
  tcp: fix wraparound issue in tcp_lp
  bpf, arm64: fix jit branch offset related to ldimm64
  bpf, arm64: implement jiting of BPF_XADD
  ...

1 files changed, 6 insertions, 147 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index a223c85dfde0..23f7d828cf67 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -44,8 +44,6 @@
 #include <linux/skbuff.h>
 #include <linux/if_vlan.h>
 #include <linux/log2.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
 #include <linux/string.h>
 
 #include "pci_hw.h"
@@ -57,8 +55,6 @@
 
 static const char mlxsw_pci_driver_name[] = "mlxsw_pci";
 
-static struct dentry *mlxsw_pci_dbg_root;
-
 #define mlxsw_pci_write32(mlxsw_pci, reg, val) \
 	iowrite32be(val, (mlxsw_pci)->hw_addr + (MLXSW_PCI_ ## reg))
 #define mlxsw_pci_read32(mlxsw_pci, reg) \
@@ -71,21 +67,6 @@ enum mlxsw_pci_queue_type {
 	MLXSW_PCI_QUEUE_TYPE_EQ,
 };
 
-static const char *mlxsw_pci_queue_type_str(enum mlxsw_pci_queue_type q_type)
-{
-	switch (q_type) {
-	case MLXSW_PCI_QUEUE_TYPE_SDQ:
-		return "sdq";
-	case MLXSW_PCI_QUEUE_TYPE_RDQ:
-		return "rdq";
-	case MLXSW_PCI_QUEUE_TYPE_CQ:
-		return "cq";
-	case MLXSW_PCI_QUEUE_TYPE_EQ:
-		return "eq";
-	}
-	BUG();
-}
-
 #define MLXSW_PCI_QUEUE_TYPE_COUNT	4
 
 static const u16 mlxsw_pci_doorbell_type_offset[] = {
@@ -155,7 +136,6 @@ struct mlxsw_pci {
 	u8 __iomem *hw_addr;
 	struct mlxsw_pci_queue_type_group queues[MLXSW_PCI_QUEUE_TYPE_COUNT];
 	u32 doorbell_offset;
-	struct msix_entry msix_entry;
 	struct mlxsw_core *core;
 	struct {
 		struct mlxsw_pci_mem_item *items;
@@ -174,7 +154,6 @@ struct mlxsw_pci {
 		} comp;
 	} cmd;
 	struct mlxsw_bus_info bus_info;
-	struct dentry *dbg_dir;
 };
 
 static void mlxsw_pci_queue_tasklet_schedule(struct mlxsw_pci_queue *q)
@@ -261,21 +240,11 @@ static u8 mlxsw_pci_sdq_count(struct mlxsw_pci *mlxsw_pci)
 	return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_SDQ);
 }
 
-static u8 mlxsw_pci_rdq_count(struct mlxsw_pci *mlxsw_pci)
-{
-	return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_RDQ);
-}
-
 static u8 mlxsw_pci_cq_count(struct mlxsw_pci *mlxsw_pci)
 {
 	return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_CQ);
 }
 
-static u8 mlxsw_pci_eq_count(struct mlxsw_pci *mlxsw_pci)
-{
-	return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_EQ);
-}
-
 static struct mlxsw_pci_queue *
 __mlxsw_pci_queue_get(struct mlxsw_pci *mlxsw_pci,
 		      enum mlxsw_pci_queue_type q_type, u8 q_num)
@@ -390,26 +359,6 @@ static void mlxsw_pci_sdq_fini(struct mlxsw_pci *mlxsw_pci,
 	mlxsw_cmd_hw2sw_sdq(mlxsw_pci->core, q->num);
 }
 
-static int mlxsw_pci_sdq_dbg_read(struct seq_file *file, void *data)
-{
-	struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
-	struct mlxsw_pci_queue *q;
-	int i;
-	static const char hdr[] =
-		"NUM PROD_COUNT CONS_COUNT COUNT\n";
-
-	seq_printf(file, hdr);
-	for (i = 0; i < mlxsw_pci_sdq_count(mlxsw_pci); i++) {
-		q = mlxsw_pci_sdq_get(mlxsw_pci, i);
-		spin_lock_bh(&q->lock);
-		seq_printf(file, "%3d %10d %10d %5d\n",
-			   i, q->producer_counter, q->consumer_counter,
-			   q->count);
-		spin_unlock_bh(&q->lock);
-	}
-	return 0;
-}
-
 static int mlxsw_pci_wqe_frag_map(struct mlxsw_pci *mlxsw_pci, char *wqe,
 				  int index, char *frag_data, size_t frag_len,
 				  int direction)
@@ -544,26 +493,6 @@ static void mlxsw_pci_rdq_fini(struct mlxsw_pci *mlxsw_pci,
 	}
 }
 
-static int mlxsw_pci_rdq_dbg_read(struct seq_file *file, void *data)
-{
-	struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
-	struct mlxsw_pci_queue *q;
-	int i;
-	static const char hdr[] =
-		"NUM PROD_COUNT CONS_COUNT COUNT\n";
-
-	seq_printf(file, hdr);
-	for (i = 0; i < mlxsw_pci_rdq_count(mlxsw_pci); i++) {
-		q = mlxsw_pci_rdq_get(mlxsw_pci, i);
-		spin_lock_bh(&q->lock);
-		seq_printf(file, "%3d %10d %10d %5d\n",
-			   i, q->producer_counter, q->consumer_counter,
-			   q->count);
-		spin_unlock_bh(&q->lock);
-	}
-	return 0;
-}
-
 static int mlxsw_pci_cq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 			     struct mlxsw_pci_queue *q)
 {
@@ -580,7 +509,6 @@ static int mlxsw_pci_cq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 
 	mlxsw_cmd_mbox_sw2hw_cq_cv_set(mbox, 0); /* CQE ver 0 */
 	mlxsw_cmd_mbox_sw2hw_cq_c_eqn_set(mbox, MLXSW_PCI_EQ_COMP_NUM);
-	mlxsw_cmd_mbox_sw2hw_cq_oi_set(mbox, 0);
 	mlxsw_cmd_mbox_sw2hw_cq_st_set(mbox, 0);
 	mlxsw_cmd_mbox_sw2hw_cq_log_cq_size_set(mbox, ilog2(q->count));
 	for (i = 0; i < MLXSW_PCI_AQ_PAGES; i++) {
@@ -602,27 +530,6 @@ static void mlxsw_pci_cq_fini(struct mlxsw_pci *mlxsw_pci,
 	mlxsw_cmd_hw2sw_cq(mlxsw_pci->core, q->num);
 }
 
-static int mlxsw_pci_cq_dbg_read(struct seq_file *file, void *data)
-{
-	struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
-
-	struct mlxsw_pci_queue *q;
-	int i;
-	static const char hdr[] =
-		"NUM CONS_INDEX  SDQ_COUNT  RDQ_COUNT COUNT\n";
-
-	seq_printf(file, hdr);
-	for (i = 0; i < mlxsw_pci_cq_count(mlxsw_pci); i++) {
-		q = mlxsw_pci_cq_get(mlxsw_pci, i);
-		spin_lock_bh(&q->lock);
-		seq_printf(file, "%3d %10d %10d %10d %5d\n",
-			   i, q->consumer_counter, q->u.cq.comp_sdq_count,
-			   q->u.cq.comp_rdq_count, q->count);
-		spin_unlock_bh(&q->lock);
-	}
-	return 0;
-}
-
 static void mlxsw_pci_cqe_sdq_handle(struct mlxsw_pci *mlxsw_pci,
 				     struct mlxsw_pci_queue *q,
 				     u16 consumer_counter_limit,
@@ -755,7 +662,6 @@ static int mlxsw_pci_eq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 	}
 
 	mlxsw_cmd_mbox_sw2hw_eq_int_msix_set(mbox, 1); /* MSI-X used */
-	mlxsw_cmd_mbox_sw2hw_eq_oi_set(mbox, 0);
 	mlxsw_cmd_mbox_sw2hw_eq_st_set(mbox, 1); /* armed */
 	mlxsw_cmd_mbox_sw2hw_eq_log_eq_size_set(mbox, ilog2(q->count));
 	for (i = 0; i < MLXSW_PCI_AQ_PAGES; i++) {
@@ -777,27 +683,6 @@ static void mlxsw_pci_eq_fini(struct mlxsw_pci *mlxsw_pci,
 	mlxsw_cmd_hw2sw_eq(mlxsw_pci->core, q->num);
 }
 
-static int mlxsw_pci_eq_dbg_read(struct seq_file *file, void *data)
-{
-	struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
-	struct mlxsw_pci_queue *q;
-	int i;
-	static const char hdr[] =
-		"NUM CONS_COUNT     EV_CMD    EV_COMP   EV_OTHER COUNT\n";
-
-	seq_printf(file, hdr);
-	for (i = 0; i < mlxsw_pci_eq_count(mlxsw_pci); i++) {
-		q = mlxsw_pci_eq_get(mlxsw_pci, i);
-		spin_lock_bh(&q->lock);
-		seq_printf(file, "%3d %10d %10d %10d %10d %5d\n",
-			   i, q->consumer_counter, q->u.eq.ev_cmd_count,
-			   q->u.eq.ev_comp_count, q->u.eq.ev_other_count,
-			   q->count);
-		spin_unlock_bh(&q->lock);
-	}
-	return 0;
-}
-
 static void mlxsw_pci_eq_cmd_event(struct mlxsw_pci *mlxsw_pci, char *eqe)
 {
 	mlxsw_pci->cmd.comp.status = mlxsw_pci_eqe_cmd_status_get(eqe);
@@ -868,7 +753,6 @@ struct mlxsw_pci_queue_ops {
 	void (*fini)(struct mlxsw_pci *mlxsw_pci,
 		     struct mlxsw_pci_queue *q);
 	void (*tasklet)(unsigned long data);
-	int (*dbg_read)(struct seq_file *s, void *data);
 	u16 elem_count;
 	u8 elem_size;
 };
@@ -877,7 +761,6 @@ static const struct mlxsw_pci_queue_ops mlxsw_pci_sdq_ops = {
 	.type		= MLXSW_PCI_QUEUE_TYPE_SDQ,
 	.init		= mlxsw_pci_sdq_init,
 	.fini		= mlxsw_pci_sdq_fini,
-	.dbg_read	= mlxsw_pci_sdq_dbg_read,
 	.elem_count	= MLXSW_PCI_WQE_COUNT,
 	.elem_size	= MLXSW_PCI_WQE_SIZE,
 };
@@ -886,7 +769,6 @@ static const struct mlxsw_pci_queue_ops mlxsw_pci_rdq_ops = {
 	.type		= MLXSW_PCI_QUEUE_TYPE_RDQ,
 	.init		= mlxsw_pci_rdq_init,
 	.fini		= mlxsw_pci_rdq_fini,
-	.dbg_read	= mlxsw_pci_rdq_dbg_read,
 	.elem_count	= MLXSW_PCI_WQE_COUNT,
 	.elem_size	= MLXSW_PCI_WQE_SIZE
 };
@@ -896,7 +778,6 @@ static const struct mlxsw_pci_queue_ops mlxsw_pci_cq_ops = {
 	.init		= mlxsw_pci_cq_init,
 	.fini		= mlxsw_pci_cq_fini,
 	.tasklet	= mlxsw_pci_cq_tasklet,
-	.dbg_read	= mlxsw_pci_cq_dbg_read,
 	.elem_count	= MLXSW_PCI_CQE_COUNT,
 	.elem_size	= MLXSW_PCI_CQE_SIZE
 };
@@ -906,7 +787,6 @@ static const struct mlxsw_pci_queue_ops mlxsw_pci_eq_ops = {
 	.init		= mlxsw_pci_eq_init,
 	.fini		= mlxsw_pci_eq_fini,
 	.tasklet	= mlxsw_pci_eq_tasklet,
-	.dbg_read	= mlxsw_pci_eq_dbg_read,
 	.elem_count	= MLXSW_PCI_EQE_COUNT,
 	.elem_size	= MLXSW_PCI_EQE_SIZE
 };
@@ -984,9 +864,7 @@ static int mlxsw_pci_queue_group_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 				      const struct mlxsw_pci_queue_ops *q_ops,
 				      u8 num_qs)
 {
-	struct pci_dev *pdev = mlxsw_pci->pdev;
 	struct mlxsw_pci_queue_type_group *queue_group;
-	char tmp[16];
 	int i;
 	int err;
 
@@ -1003,10 +881,6 @@ static int mlxsw_pci_queue_group_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 	}
 	queue_group->count = num_qs;
 
-	sprintf(tmp, "%s_stats", mlxsw_pci_queue_type_str(q_ops->type));
-	debugfs_create_devm_seqfile(&pdev->dev, tmp, mlxsw_pci->dbg_dir,
-				    q_ops->dbg_read);
-
 	return 0;
 
 err_queue_init:
@@ -1534,7 +1408,7 @@ static int mlxsw_pci_init(void *bus_priv, struct mlxsw_core *mlxsw_core,
 	if (err)
 		goto err_aqs_init;
 
-	err = request_irq(mlxsw_pci->msix_entry.vector,
+	err = request_irq(pci_irq_vector(pdev, 0),
 			  mlxsw_pci_eq_irq_handler, 0,
 			  mlxsw_pci->bus_info.device_kind, mlxsw_pci);
 	if (err) {
@@ -1567,7 +1441,7 @@ static void mlxsw_pci_fini(void *bus_priv)
 {
 	struct mlxsw_pci *mlxsw_pci = bus_priv;
 
-	free_irq(mlxsw_pci->msix_entry.vector, mlxsw_pci);
+	free_irq(pci_irq_vector(mlxsw_pci->pdev, 0), mlxsw_pci);
 	mlxsw_pci_aqs_fini(mlxsw_pci);
 	mlxsw_pci_fw_area_fini(mlxsw_pci);
 	mlxsw_pci_mbox_free(mlxsw_pci, &mlxsw_pci->cmd.out_mbox);
@@ -1842,8 +1716,8 @@ static int mlxsw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err_sw_reset;
 	}
 
-	err = pci_enable_msix_exact(pdev, &mlxsw_pci->msix_entry, 1);
-	if (err) {
+	err = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
+	if (err < 0) {
 		dev_err(&pdev->dev, "MSI-X init failed\n");
 		goto err_msix_init;
 	}
@@ -1852,14 +1726,6 @@ static int mlxsw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	mlxsw_pci->bus_info.device_name = pci_name(mlxsw_pci->pdev);
 	mlxsw_pci->bus_info.dev = &pdev->dev;
 
-	mlxsw_pci->dbg_dir = debugfs_create_dir(mlxsw_pci->bus_info.device_name,
-						mlxsw_pci_dbg_root);
-	if (!mlxsw_pci->dbg_dir) {
-		dev_err(&pdev->dev, "Failed to create debugfs dir\n");
-		err = -ENOMEM;
-		goto err_dbg_create_dir;
-	}
-
 	err = mlxsw_core_bus_device_register(&mlxsw_pci->bus_info,
 					     &mlxsw_pci_bus, mlxsw_pci);
 	if (err) {
@@ -1870,9 +1736,7 @@ static int mlxsw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	return 0;
 
 err_bus_device_register:
-	debugfs_remove_recursive(mlxsw_pci->dbg_dir);
-err_dbg_create_dir:
-	pci_disable_msix(mlxsw_pci->pdev);
+	pci_free_irq_vectors(mlxsw_pci->pdev);
 err_msix_init:
 err_sw_reset:
 	iounmap(mlxsw_pci->hw_addr);
@@ -1892,8 +1756,7 @@ static void mlxsw_pci_remove(struct pci_dev *pdev)
 	struct mlxsw_pci *mlxsw_pci = pci_get_drvdata(pdev);
 
 	mlxsw_core_bus_device_unregister(mlxsw_pci->core);
-	debugfs_remove_recursive(mlxsw_pci->dbg_dir);
-	pci_disable_msix(mlxsw_pci->pdev);
+	pci_free_irq_vectors(mlxsw_pci->pdev);
 	iounmap(mlxsw_pci->hw_addr);
 	pci_release_regions(mlxsw_pci->pdev);
 	pci_disable_device(mlxsw_pci->pdev);
@@ -1916,15 +1779,11 @@ EXPORT_SYMBOL(mlxsw_pci_driver_unregister);
 
 static int __init mlxsw_pci_module_init(void)
 {
-	mlxsw_pci_dbg_root = debugfs_create_dir(mlxsw_pci_driver_name, NULL);
-	if (!mlxsw_pci_dbg_root)
-		return -ENOMEM;
 	return 0;
 }
 
 static void __exit mlxsw_pci_module_exit(void)
 {
-	debugfs_remove_recursive(mlxsw_pci_dbg_root);
 }
 
 module_init(mlxsw_pci_module_init);