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

Pull networking updates from David Miller:

 1) Support IPV6 RA Captive Portal Identifier, from Maciej Żenczykowski.

 2) Use bio_vec in the networking instead of custom skb_frag_t, from
    Matthew Wilcox.

 3) Make use of xmit_more in r8169 driver, from Heiner Kallweit.

 4) Add devmap_hash to xdp, from Toke Høiland-Jørgensen.

 5) Support all variants of 5750X bnxt_en chips, from Michael Chan.

 6) More RTNL avoidance work in the core and mlx5 driver, from Vlad
    Buslov.

 7) Add TCP syn cookies bpf helper, from Petar Penkov.

 8) Add 'nettest' to selftests and use it, from David Ahern.

 9) Add extack support to drop_monitor, add packet alert mode and
    support for HW drops, from Ido Schimmel.

10) Add VLAN offload to stmmac, from Jose Abreu.

11) Lots of devm_platform_ioremap_resource() conversions, from
    YueHaibing.

12) Add IONIC driver, from Shannon Nelson.

13) Several kTLS cleanups, from Jakub Kicinski.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1930 commits)
  mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer
  mlxsw: spectrum: Register CPU port with devlink
  mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
  net: ena: fix incorrect update of intr_delay_resolution
  net: ena: fix retrieval of nonadaptive interrupt moderation intervals
  net: ena: fix update of interrupt moderation register
  net: ena: remove all old adaptive rx interrupt moderation code from ena_com
  net: ena: remove ena_restore_ethtool_params() and relevant fields
  net: ena: remove old adaptive interrupt moderation code from ena_netdev
  net: ena: remove code duplication in ena_com_update_nonadaptive_moderation_interval _*()
  net: ena: enable the interrupt_moderation in driver_supported_features
  net: ena: reimplement set/get_coalesce()
  net: ena: switch to dim algorithm for rx adaptive interrupt moderation
  net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
  net: phy: adin: implement Energy Detect Powerdown mode via phy-tunable
  ethtool: implement Energy Detect Powerdown support via phy-tunable
  xen-netfront: do not assume sk_buff_head list is empty in error handling
  s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
  net: ena: don't wake up tx queue when down
  drop_monitor: Better sanitize notified packets
  ...

1 files changed, 292 insertions, 0 deletions

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
new file mode 100644
index 000000000000..9a9ab8cb2cb3
--- /dev/null
+++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+
+#include "ionic.h"
+#include "ionic_bus.h"
+#include "ionic_lif.h"
+#include "ionic_debugfs.h"
+
+/* Supported devices */
+static const struct pci_device_id ionic_id_table[] = {
+	{ PCI_VDEVICE(PENSANDO, PCI_DEVICE_ID_PENSANDO_IONIC_ETH_PF) },
+	{ PCI_VDEVICE(PENSANDO, PCI_DEVICE_ID_PENSANDO_IONIC_ETH_VF) },
+	{ 0, }	/* end of table */
+};
+MODULE_DEVICE_TABLE(pci, ionic_id_table);
+
+int ionic_bus_get_irq(struct ionic *ionic, unsigned int num)
+{
+	return pci_irq_vector(ionic->pdev, num);
+}
+
+const char *ionic_bus_info(struct ionic *ionic)
+{
+	return pci_name(ionic->pdev);
+}
+
+int ionic_bus_alloc_irq_vectors(struct ionic *ionic, unsigned int nintrs)
+{
+	return pci_alloc_irq_vectors(ionic->pdev, nintrs, nintrs,
+				     PCI_IRQ_MSIX);
+}
+
+void ionic_bus_free_irq_vectors(struct ionic *ionic)
+{
+	pci_free_irq_vectors(ionic->pdev);
+}
+
+static int ionic_map_bars(struct ionic *ionic)
+{
+	struct pci_dev *pdev = ionic->pdev;
+	struct device *dev = ionic->dev;
+	struct ionic_dev_bar *bars;
+	unsigned int i, j;
+
+	bars = ionic->bars;
+	ionic->num_bars = 0;
+
+	for (i = 0, j = 0; i < IONIC_BARS_MAX; i++) {
+		if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM))
+			continue;
+		bars[j].len = pci_resource_len(pdev, i);
+
+		/* only map the whole bar 0 */
+		if (j > 0) {
+			bars[j].vaddr = NULL;
+		} else {
+			bars[j].vaddr = pci_iomap(pdev, i, bars[j].len);
+			if (!bars[j].vaddr) {
+				dev_err(dev,
+					"Cannot memory-map BAR %d, aborting\n",
+					i);
+				return -ENODEV;
+			}
+		}
+
+		bars[j].bus_addr = pci_resource_start(pdev, i);
+		bars[j].res_index = i;
+		ionic->num_bars++;
+		j++;
+	}
+
+	return 0;
+}
+
+static void ionic_unmap_bars(struct ionic *ionic)
+{
+	struct ionic_dev_bar *bars = ionic->bars;
+	unsigned int i;
+
+	for (i = 0; i < IONIC_BARS_MAX; i++) {
+		if (bars[i].vaddr) {
+			iounmap(bars[i].vaddr);
+			bars[i].bus_addr = 0;
+			bars[i].vaddr = NULL;
+			bars[i].len = 0;
+		}
+	}
+}
+
+void __iomem *ionic_bus_map_dbpage(struct ionic *ionic, int page_num)
+{
+	return pci_iomap_range(ionic->pdev,
+			       ionic->bars[IONIC_PCI_BAR_DBELL].res_index,
+			       (u64)page_num << PAGE_SHIFT, PAGE_SIZE);
+}
+
+void ionic_bus_unmap_dbpage(struct ionic *ionic, void __iomem *page)
+{
+	iounmap(page);
+}
+
+static int ionic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct device *dev = &pdev->dev;
+	struct ionic *ionic;
+	int err;
+
+	ionic = ionic_devlink_alloc(dev);
+	if (!ionic)
+		return -ENOMEM;
+
+	ionic->pdev = pdev;
+	ionic->dev = dev;
+	pci_set_drvdata(pdev, ionic);
+	mutex_init(&ionic->dev_cmd_lock);
+
+	/* Query system for DMA addressing limitation for the device. */
+	err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(IONIC_ADDR_LEN));
+	if (err) {
+		dev_err(dev, "Unable to obtain 64-bit DMA for consistent allocations, aborting.  err=%d\n",
+			err);
+		goto err_out_clear_drvdata;
+	}
+
+	ionic_debugfs_add_dev(ionic);
+
+	/* Setup PCI device */
+	err = pci_enable_device_mem(pdev);
+	if (err) {
+		dev_err(dev, "Cannot enable PCI device: %d, aborting\n", err);
+		goto err_out_debugfs_del_dev;
+	}
+
+	err = pci_request_regions(pdev, IONIC_DRV_NAME);
+	if (err) {
+		dev_err(dev, "Cannot request PCI regions: %d, aborting\n", err);
+		goto err_out_pci_disable_device;
+	}
+
+	pci_set_master(pdev);
+
+	err = ionic_map_bars(ionic);
+	if (err)
+		goto err_out_pci_clear_master;
+
+	/* Configure the device */
+	err = ionic_setup(ionic);
+	if (err) {
+		dev_err(dev, "Cannot setup device: %d, aborting\n", err);
+		goto err_out_unmap_bars;
+	}
+
+	err = ionic_identify(ionic);
+	if (err) {
+		dev_err(dev, "Cannot identify device: %d, aborting\n", err);
+		goto err_out_teardown;
+	}
+
+	err = ionic_init(ionic);
+	if (err) {
+		dev_err(dev, "Cannot init device: %d, aborting\n", err);
+		goto err_out_teardown;
+	}
+
+	/* Configure the ports */
+	err = ionic_port_identify(ionic);
+	if (err) {
+		dev_err(dev, "Cannot identify port: %d, aborting\n", err);
+		goto err_out_reset;
+	}
+
+	err = ionic_port_init(ionic);
+	if (err) {
+		dev_err(dev, "Cannot init port: %d, aborting\n", err);
+		goto err_out_reset;
+	}
+
+	/* Configure LIFs */
+	err = ionic_lif_identify(ionic, IONIC_LIF_TYPE_CLASSIC,
+				 &ionic->ident.lif);
+	if (err) {
+		dev_err(dev, "Cannot identify LIFs: %d, aborting\n", err);
+		goto err_out_port_reset;
+	}
+
+	err = ionic_lifs_size(ionic);
+	if (err) {
+		dev_err(dev, "Cannot size LIFs: %d, aborting\n", err);
+		goto err_out_port_reset;
+	}
+
+	err = ionic_lifs_alloc(ionic);
+	if (err) {
+		dev_err(dev, "Cannot allocate LIFs: %d, aborting\n", err);
+		goto err_out_free_irqs;
+	}
+
+	err = ionic_lifs_init(ionic);
+	if (err) {
+		dev_err(dev, "Cannot init LIFs: %d, aborting\n", err);
+		goto err_out_free_lifs;
+	}
+
+	err = ionic_lifs_register(ionic);
+	if (err) {
+		dev_err(dev, "Cannot register LIFs: %d, aborting\n", err);
+		goto err_out_deinit_lifs;
+	}
+
+	err = ionic_devlink_register(ionic);
+	if (err) {
+		dev_err(dev, "Cannot register devlink: %d\n", err);
+		goto err_out_deregister_lifs;
+	}
+
+	return 0;
+
+err_out_deregister_lifs:
+	ionic_lifs_unregister(ionic);
+err_out_deinit_lifs:
+	ionic_lifs_deinit(ionic);
+err_out_free_lifs:
+	ionic_lifs_free(ionic);
+err_out_free_irqs:
+	ionic_bus_free_irq_vectors(ionic);
+err_out_port_reset:
+	ionic_port_reset(ionic);
+err_out_reset:
+	ionic_reset(ionic);
+err_out_teardown:
+	ionic_dev_teardown(ionic);
+err_out_unmap_bars:
+	ionic_unmap_bars(ionic);
+	pci_release_regions(pdev);
+err_out_pci_clear_master:
+	pci_clear_master(pdev);
+err_out_pci_disable_device:
+	pci_disable_device(pdev);
+err_out_debugfs_del_dev:
+	ionic_debugfs_del_dev(ionic);
+err_out_clear_drvdata:
+	mutex_destroy(&ionic->dev_cmd_lock);
+	ionic_devlink_free(ionic);
+
+	return err;
+}
+
+static void ionic_remove(struct pci_dev *pdev)
+{
+	struct ionic *ionic = pci_get_drvdata(pdev);
+
+	if (!ionic)
+		return;
+
+	ionic_devlink_unregister(ionic);
+	ionic_lifs_unregister(ionic);
+	ionic_lifs_deinit(ionic);
+	ionic_lifs_free(ionic);
+	ionic_bus_free_irq_vectors(ionic);
+	ionic_port_reset(ionic);
+	ionic_reset(ionic);
+	ionic_dev_teardown(ionic);
+	ionic_unmap_bars(ionic);
+	pci_release_regions(pdev);
+	pci_clear_master(pdev);
+	pci_disable_device(pdev);
+	ionic_debugfs_del_dev(ionic);
+	mutex_destroy(&ionic->dev_cmd_lock);
+	ionic_devlink_free(ionic);
+}
+
+static struct pci_driver ionic_driver = {
+	.name = IONIC_DRV_NAME,
+	.id_table = ionic_id_table,
+	.probe = ionic_probe,
+	.remove = ionic_remove,
+};
+
+int ionic_bus_register_driver(void)
+{
+	return pci_register_driver(&ionic_driver);
+}
+
+void ionic_bus_unregister_driver(void)
+{
+	pci_unregister_driver(&ionic_driver);
+}