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, 12 insertions, 43 deletions

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 35f19430c84a..7c1214d78855 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -133,7 +133,7 @@ static int ena_init_rx_cpu_rmap(struct ena_adapter *adapter)
 		int irq_idx = ENA_IO_IRQ_IDX(i);
 
 		rc = irq_cpu_rmap_add(adapter->netdev->rx_cpu_rmap,
-				      adapter->msix_entries[irq_idx].vector);
+				      pci_irq_vector(adapter->pdev, irq_idx));
 		if (rc) {
 			free_irq_cpu_rmap(adapter->netdev->rx_cpu_rmap);
 			adapter->netdev->rx_cpu_rmap = NULL;
@@ -1208,13 +1208,7 @@ static irqreturn_t ena_intr_msix_io(int irq, void *data)
 
 static int ena_enable_msix(struct ena_adapter *adapter, int num_queues)
 {
-	int i, msix_vecs, rc;
-
-	if (test_bit(ENA_FLAG_MSIX_ENABLED, &adapter->flags)) {
-		netif_err(adapter, probe, adapter->netdev,
-			  "Error, MSI-X is already enabled\n");
-		return -EPERM;
-	}
+	int msix_vecs, rc;
 
 	/* Reserved the max msix vectors we might need */
 	msix_vecs = ENA_MAX_MSIX_VEC(num_queues);
@@ -1222,16 +1216,9 @@ static int ena_enable_msix(struct ena_adapter *adapter, int num_queues)
 	netif_dbg(adapter, probe, adapter->netdev,
 		  "trying to enable MSI-X, vectors %d\n", msix_vecs);
 
-	adapter->msix_entries = vzalloc(msix_vecs * sizeof(struct msix_entry));
-
-	if (!adapter->msix_entries)
-		return -ENOMEM;
-
-	for (i = 0; i < msix_vecs; i++)
-		adapter->msix_entries[i].entry = i;
-
-	rc = pci_enable_msix(adapter->pdev, adapter->msix_entries, msix_vecs);
-	if (rc != 0) {
+	rc = pci_alloc_irq_vectors(adapter->pdev, msix_vecs, msix_vecs,
+			PCI_IRQ_MSIX);
+	if (rc < 0) {
 		netif_err(adapter, probe, adapter->netdev,
 			  "Failed to enable MSI-X, vectors %d rc %d\n",
 			  msix_vecs, rc);
@@ -1248,7 +1235,6 @@ static int ena_enable_msix(struct ena_adapter *adapter, int num_queues)
 	}
 
 	adapter->msix_vecs = msix_vecs;
-	set_bit(ENA_FLAG_MSIX_ENABLED, &adapter->flags);
 
 	return 0;
 }
@@ -1264,7 +1250,7 @@ static void ena_setup_mgmnt_intr(struct ena_adapter *adapter)
 		ena_intr_msix_mgmnt;
 	adapter->irq_tbl[ENA_MGMNT_IRQ_IDX].data = adapter;
 	adapter->irq_tbl[ENA_MGMNT_IRQ_IDX].vector =
-		adapter->msix_entries[ENA_MGMNT_IRQ_IDX].vector;
+		pci_irq_vector(adapter->pdev, ENA_MGMNT_IRQ_IDX);
 	cpu = cpumask_first(cpu_online_mask);
 	adapter->irq_tbl[ENA_MGMNT_IRQ_IDX].cpu = cpu;
 	cpumask_set_cpu(cpu,
@@ -1287,7 +1273,7 @@ static void ena_setup_io_intr(struct ena_adapter *adapter)
 		adapter->irq_tbl[irq_idx].handler = ena_intr_msix_io;
 		adapter->irq_tbl[irq_idx].data = &adapter->ena_napi[i];
 		adapter->irq_tbl[irq_idx].vector =
-			adapter->msix_entries[irq_idx].vector;
+			pci_irq_vector(adapter->pdev, irq_idx);
 		adapter->irq_tbl[irq_idx].cpu = cpu;
 
 		cpumask_set_cpu(cpu,
@@ -1325,12 +1311,6 @@ static int ena_request_io_irq(struct ena_adapter *adapter)
 	struct ena_irq *irq;
 	int rc = 0, i, k;
 
-	if (!test_bit(ENA_FLAG_MSIX_ENABLED, &adapter->flags)) {
-		netif_err(adapter, ifup, adapter->netdev,
-			  "Failed to request I/O IRQ: MSI-X is not enabled\n");
-		return -EINVAL;
-	}
-
 	for (i = ENA_IO_IRQ_FIRST_IDX; i < adapter->msix_vecs; i++) {
 		irq = &adapter->irq_tbl[i];
 		rc = request_irq(irq->vector, irq->handler, flags, irq->name,
@@ -1389,16 +1369,6 @@ static void ena_free_io_irq(struct ena_adapter *adapter)
 	}
 }
 
-static void ena_disable_msix(struct ena_adapter *adapter)
-{
-	if (test_and_clear_bit(ENA_FLAG_MSIX_ENABLED, &adapter->flags))
-		pci_disable_msix(adapter->pdev);
-
-	if (adapter->msix_entries)
-		vfree(adapter->msix_entries);
-	adapter->msix_entries = NULL;
-}
-
 static void ena_disable_io_intr_sync(struct ena_adapter *adapter)
 {
 	int i;
@@ -2479,8 +2449,7 @@ static int ena_enable_msix_and_set_admin_interrupts(struct ena_adapter *adapter,
 	return 0;
 
 err_disable_msix:
-	ena_disable_msix(adapter);
-
+	pci_free_irq_vectors(adapter->pdev);
 	return rc;
 }
 
@@ -2518,7 +2487,7 @@ static void ena_fw_reset_device(struct work_struct *work)
 
 	ena_free_mgmnt_irq(adapter);
 
-	ena_disable_msix(adapter);
+	pci_free_irq_vectors(adapter->pdev);
 
 	ena_com_abort_admin_commands(ena_dev);
 
@@ -2569,7 +2538,7 @@ static void ena_fw_reset_device(struct work_struct *work)
 	return;
 err_disable_msix:
 	ena_free_mgmnt_irq(adapter);
-	ena_disable_msix(adapter);
+	pci_free_irq_vectors(adapter->pdev);
 err_device_destroy:
 	ena_com_admin_destroy(ena_dev);
 err:
@@ -3103,7 +3072,7 @@ err_rss:
 err_free_msix:
 	ena_com_dev_reset(ena_dev);
 	ena_free_mgmnt_irq(adapter);
-	ena_disable_msix(adapter);
+	pci_free_irq_vectors(adapter->pdev);
 err_worker_destroy:
 	ena_com_destroy_interrupt_moderation(ena_dev);
 	del_timer(&adapter->timer_service);
@@ -3188,7 +3157,7 @@ static void ena_remove(struct pci_dev *pdev)
 
 	ena_free_mgmnt_irq(adapter);
 
-	ena_disable_msix(adapter);
+	pci_free_irq_vectors(adapter->pdev);
 
 	free_netdev(netdev);