^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /****************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Driver for Solarflare network controllers and boards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright 2005-2006 Fen Systems Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2005-2013 Solarflare Communications Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/etherdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/notifier.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/tcp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/ethtool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/topology.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/gfp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/aer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "net_driver.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <net/gre.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <net/udp_tunnel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "efx.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "efx_common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "efx_channels.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "ef100.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "rx_common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "tx_common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include "nic.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include "io.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include "selftest.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include "sriov.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include "mcdi_port_common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include "mcdi_pcol.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include "workarounds.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * Configurable values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) *************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) module_param_named(interrupt_mode, efx_interrupt_mode, uint, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) MODULE_PARM_DESC(interrupt_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) "Interrupt mode (0=>MSIX 1=>MSI 2=>legacy)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) module_param(rss_cpus, uint, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) MODULE_PARM_DESC(rss_cpus, "Number of CPUs to use for Receive-Side Scaling");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * Use separate channels for TX and RX events
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * Set this to 1 to use separate channels for TX and RX. It allows us
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * to control interrupt affinity separately for TX and RX.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * This is only used in MSI-X interrupt mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) bool efx_separate_tx_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) module_param(efx_separate_tx_channels, bool, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) MODULE_PARM_DESC(efx_separate_tx_channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) "Use separate channels for TX and RX");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* Initial interrupt moderation settings. They can be modified after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * module load with ethtool.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * The default for RX should strike a balance between increasing the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * round-trip latency and reducing overhead.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static unsigned int rx_irq_mod_usec = 60;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* Initial interrupt moderation settings. They can be modified after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * module load with ethtool.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * This default is chosen to ensure that a 10G link does not go idle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * while a TX queue is stopped after it has become full. A queue is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * restarted when it drops below half full. The time this takes (assuming
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * worst case 3 descriptors per packet and 1024 descriptors) is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * 512 / 3 * 1.2 = 205 usec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static unsigned int tx_irq_mod_usec = 150;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static bool phy_flash_cfg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) module_param(phy_flash_cfg, bool, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) MODULE_PARM_DESC(phy_flash_cfg, "Set PHYs into reflash mode initially");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static unsigned debug = (NETIF_MSG_DRV | NETIF_MSG_PROBE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) NETIF_MSG_IFUP | NETIF_MSG_RX_ERR |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) NETIF_MSG_TX_ERR | NETIF_MSG_HW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) module_param(debug, uint, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) MODULE_PARM_DESC(debug, "Bitmapped debugging message enable value");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * Utility functions and prototypes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) *************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static void efx_remove_port(struct efx_nic *efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int efx_xdp_setup_prog(struct efx_nic *efx, struct bpf_prog *prog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static int efx_xdp(struct net_device *dev, struct netdev_bpf *xdp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static int efx_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **xdpfs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) u32 flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define EFX_ASSERT_RESET_SERIALISED(efx) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if ((efx->state == STATE_READY) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) (efx->state == STATE_RECOVERY) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) (efx->state == STATE_DISABLED)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) ASSERT_RTNL(); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * Port handling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) **************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static void efx_fini_port(struct efx_nic *efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static int efx_probe_port(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) netif_dbg(efx, probe, efx->net_dev, "create port\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (phy_flash_cfg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) efx->phy_mode = PHY_MODE_SPECIAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /* Connect up MAC/PHY operations table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) rc = efx->type->probe_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) /* Initialise MAC address to permanent address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ether_addr_copy(efx->net_dev->dev_addr, efx->net_dev->perm_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static int efx_init_port(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) netif_dbg(efx, drv, efx->net_dev, "init port\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) mutex_lock(&efx->mac_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) efx->port_initialized = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* Ensure the PHY advertises the correct flow control settings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) rc = efx_mcdi_port_reconfigure(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (rc && rc != -EPERM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) mutex_unlock(&efx->mac_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) mutex_unlock(&efx->mac_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static void efx_fini_port(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) netif_dbg(efx, drv, efx->net_dev, "shut down port\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (!efx->port_initialized)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) efx->port_initialized = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) efx->link_state.up = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) efx_link_status_changed(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) static void efx_remove_port(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) netif_dbg(efx, drv, efx->net_dev, "destroying port\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) efx->type->remove_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * NIC handling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) **************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static LIST_HEAD(efx_primary_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static LIST_HEAD(efx_unassociated_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static bool efx_same_controller(struct efx_nic *left, struct efx_nic *right)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return left->type == right->type &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) left->vpd_sn && right->vpd_sn &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) !strcmp(left->vpd_sn, right->vpd_sn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static void efx_associate(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct efx_nic *other, *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (efx->primary == efx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* Adding primary function; look for secondaries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) netif_dbg(efx, probe, efx->net_dev, "adding to primary list\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) list_add_tail(&efx->node, &efx_primary_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) list_for_each_entry_safe(other, next, &efx_unassociated_list,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (efx_same_controller(efx, other)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) list_del(&other->node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) netif_dbg(other, probe, other->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) "moving to secondary list of %s %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) pci_name(efx->pci_dev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) efx->net_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) list_add_tail(&other->node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) &efx->secondary_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) other->primary = efx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) /* Adding secondary function; look for primary */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) list_for_each_entry(other, &efx_primary_list, node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (efx_same_controller(efx, other)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) netif_dbg(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) "adding to secondary list of %s %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) pci_name(other->pci_dev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) other->net_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) list_add_tail(&efx->node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) &other->secondary_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) efx->primary = other;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) netif_dbg(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) "adding to unassociated list\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) list_add_tail(&efx->node, &efx_unassociated_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static void efx_dissociate(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) struct efx_nic *other, *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) list_del(&efx->node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) efx->primary = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) list_for_each_entry_safe(other, next, &efx->secondary_list, node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) list_del(&other->node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) netif_dbg(other, probe, other->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) "moving to unassociated list\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) list_add_tail(&other->node, &efx_unassociated_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) other->primary = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) static int efx_probe_nic(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) netif_dbg(efx, probe, efx->net_dev, "creating NIC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /* Carry out hardware-type specific initialisation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) rc = efx->type->probe(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (!efx->max_channels || !efx->max_tx_channels) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) netif_err(efx, drv, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) "Insufficient resources to allocate"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) " any channels\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) rc = -ENOSPC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /* Determine the number of channels and queues by trying
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) * to hook in MSI-X interrupts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) rc = efx_probe_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) rc = efx_set_channels(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) /* dimension_resources can fail with EAGAIN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) rc = efx->type->dimension_resources(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (rc != 0 && rc != -EAGAIN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) goto fail2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (rc == -EAGAIN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) /* try again with new max_channels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) efx_remove_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) } while (rc == -EAGAIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (efx->n_channels > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) netdev_rss_key_fill(efx->rss_context.rx_hash_key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) sizeof(efx->rss_context.rx_hash_key));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) efx_set_default_rx_indir_table(efx, &efx->rss_context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) /* Initialise the interrupt moderation settings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) efx->irq_mod_step_us = DIV_ROUND_UP(efx->timer_quantum_ns, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) efx_init_irq_moderation(efx, tx_irq_mod_usec, rx_irq_mod_usec, true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) fail2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) efx_remove_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) fail1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) efx->type->remove(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static void efx_remove_nic(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) netif_dbg(efx, drv, efx->net_dev, "destroying NIC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) efx_remove_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) efx->type->remove(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) * NIC startup/shutdown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) *************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) static int efx_probe_all(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) rc = efx_probe_nic(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) netif_err(efx, probe, efx->net_dev, "failed to create NIC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) rc = efx_probe_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) netif_err(efx, probe, efx->net_dev, "failed to create port\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) goto fail2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) BUILD_BUG_ON(EFX_DEFAULT_DMAQ_SIZE < EFX_RXQ_MIN_ENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (WARN_ON(EFX_DEFAULT_DMAQ_SIZE < EFX_TXQ_MIN_ENT(efx))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) goto fail3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) rc = efx->type->vswitching_probe(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) if (rc) /* not fatal; the PF will still work fine */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) netif_warn(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) "failed to setup vswitching rc=%d;"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) " VFs may not function\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) rc = efx_probe_filters(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) netif_err(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) "failed to create filter tables\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) goto fail4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) rc = efx_probe_channels(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) goto fail5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) fail5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) efx_remove_filters(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) fail4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) efx->type->vswitching_remove(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) fail3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) efx_remove_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) fail2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) efx_remove_nic(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) fail1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static void efx_remove_all(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) efx_xdp_setup_prog(efx, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) efx_remove_channels(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) efx_remove_filters(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) efx->type->vswitching_remove(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) efx_remove_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) efx_remove_nic(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) * Interrupt moderation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) **************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) unsigned int efx_usecs_to_ticks(struct efx_nic *efx, unsigned int usecs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (usecs == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (usecs * 1000 < efx->timer_quantum_ns)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) return 1; /* never round down to 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) return usecs * 1000 / efx->timer_quantum_ns;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) unsigned int efx_ticks_to_usecs(struct efx_nic *efx, unsigned int ticks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) /* We must round up when converting ticks to microseconds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) * because we round down when converting the other way.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return DIV_ROUND_UP(ticks * efx->timer_quantum_ns, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) /* Set interrupt moderation parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) int efx_init_irq_moderation(struct efx_nic *efx, unsigned int tx_usecs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) unsigned int rx_usecs, bool rx_adaptive,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) bool rx_may_override_tx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) struct efx_channel *channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) unsigned int timer_max_us;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) EFX_ASSERT_RESET_SERIALISED(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) timer_max_us = efx->timer_max_ns / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (tx_usecs > timer_max_us || rx_usecs > timer_max_us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (tx_usecs != rx_usecs && efx->tx_channel_offset == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) !rx_may_override_tx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) netif_err(efx, drv, efx->net_dev, "Channels are shared. "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) "RX and TX IRQ moderation must be equal\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) efx->irq_rx_adaptive = rx_adaptive;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) efx->irq_rx_moderation_us = rx_usecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) efx_for_each_channel(channel, efx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (efx_channel_has_rx_queue(channel))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) channel->irq_moderation_us = rx_usecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) else if (efx_channel_has_tx_queues(channel))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) channel->irq_moderation_us = tx_usecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) else if (efx_channel_is_xdp_tx(channel))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) channel->irq_moderation_us = tx_usecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) unsigned int *rx_usecs, bool *rx_adaptive)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) *rx_adaptive = efx->irq_rx_adaptive;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) *rx_usecs = efx->irq_rx_moderation_us;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) /* If channels are shared between RX and TX, so is IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * moderation. Otherwise, IRQ moderation is the same for all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) * TX channels and is not adaptive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) if (efx->tx_channel_offset == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) *tx_usecs = *rx_usecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) struct efx_channel *tx_channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) tx_channel = efx->channel[efx->tx_channel_offset];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) *tx_usecs = tx_channel->irq_moderation_us;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) * ioctls
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) *************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) /* Net device ioctl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) * Context: process, rtnl_lock() held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) static int efx_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) struct efx_nic *efx = netdev_priv(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) struct mii_ioctl_data *data = if_mii(ifr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) if (cmd == SIOCSHWTSTAMP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return efx_ptp_set_ts_config(efx, ifr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (cmd == SIOCGHWTSTAMP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) return efx_ptp_get_ts_config(efx, ifr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) /* Convert phy_id from older PRTAD/DEVAD format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if ((cmd == SIOCGMIIREG || cmd == SIOCSMIIREG) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) (data->phy_id & 0xfc00) == 0x0400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) data->phy_id ^= MDIO_PHY_ID_C45 | 0x0400;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) return mdio_mii_ioctl(&efx->mdio, data, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) * Kernel net device interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) *************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) /* Context: process, rtnl_lock() held. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) int efx_net_open(struct net_device *net_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) struct efx_nic *efx = netdev_priv(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) netif_dbg(efx, ifup, efx->net_dev, "opening device on CPU %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) raw_smp_processor_id());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) rc = efx_check_disabled(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) if (efx->phy_mode & PHY_MODE_SPECIAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) if (efx_mcdi_poll_reboot(efx) && efx_reset(efx, RESET_TYPE_ALL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) /* Notify the kernel of the link state polled during driver load,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) * before the monitor starts running */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) efx_link_status_changed(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) efx_start_all(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) if (efx->state == STATE_DISABLED || efx->reset_pending)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) netif_device_detach(efx->net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) efx_selftest_async_start(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) /* Context: process, rtnl_lock() held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) * Note that the kernel will ignore our return code; this method
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) * should really be a void.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) int efx_net_stop(struct net_device *net_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) struct efx_nic *efx = netdev_priv(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) netif_dbg(efx, ifdown, efx->net_dev, "closing on CPU %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) raw_smp_processor_id());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) /* Stop the device and flush all the channels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) efx_stop_all(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) static int efx_vlan_rx_add_vid(struct net_device *net_dev, __be16 proto, u16 vid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) struct efx_nic *efx = netdev_priv(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) if (efx->type->vlan_rx_add_vid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) return efx->type->vlan_rx_add_vid(efx, proto, vid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) static int efx_vlan_rx_kill_vid(struct net_device *net_dev, __be16 proto, u16 vid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) struct efx_nic *efx = netdev_priv(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) if (efx->type->vlan_rx_kill_vid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return efx->type->vlan_rx_kill_vid(efx, proto, vid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) static const struct net_device_ops efx_netdev_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) .ndo_open = efx_net_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) .ndo_stop = efx_net_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) .ndo_get_stats64 = efx_net_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) .ndo_tx_timeout = efx_watchdog,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) .ndo_start_xmit = efx_hard_start_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) .ndo_validate_addr = eth_validate_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) .ndo_do_ioctl = efx_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) .ndo_change_mtu = efx_change_mtu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) .ndo_set_mac_address = efx_set_mac_address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) .ndo_set_rx_mode = efx_set_rx_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) .ndo_set_features = efx_set_features,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) .ndo_features_check = efx_features_check,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) .ndo_vlan_rx_add_vid = efx_vlan_rx_add_vid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) .ndo_vlan_rx_kill_vid = efx_vlan_rx_kill_vid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) .ndo_set_vf_mac = efx_sriov_set_vf_mac,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) .ndo_set_vf_vlan = efx_sriov_set_vf_vlan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) .ndo_set_vf_spoofchk = efx_sriov_set_vf_spoofchk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) .ndo_get_vf_config = efx_sriov_get_vf_config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) .ndo_set_vf_link_state = efx_sriov_set_vf_link_state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) .ndo_get_phys_port_id = efx_get_phys_port_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) .ndo_get_phys_port_name = efx_get_phys_port_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) .ndo_setup_tc = efx_setup_tc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) #ifdef CONFIG_RFS_ACCEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) .ndo_rx_flow_steer = efx_filter_rfs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) .ndo_udp_tunnel_add = udp_tunnel_nic_add_port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) .ndo_udp_tunnel_del = udp_tunnel_nic_del_port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) .ndo_xdp_xmit = efx_xdp_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) .ndo_bpf = efx_xdp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) static int efx_xdp_setup_prog(struct efx_nic *efx, struct bpf_prog *prog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) struct bpf_prog *old_prog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) if (efx->xdp_rxq_info_failed) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) netif_err(efx, drv, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) "Unable to bind XDP program due to previous failure of rxq_info\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) if (prog && efx->net_dev->mtu > efx_xdp_max_mtu(efx)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) netif_err(efx, drv, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) "Unable to configure XDP with MTU of %d (max: %d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) efx->net_dev->mtu, efx_xdp_max_mtu(efx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) old_prog = rtnl_dereference(efx->xdp_prog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) rcu_assign_pointer(efx->xdp_prog, prog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) /* Release the reference that was originally passed by the caller. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (old_prog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) bpf_prog_put(old_prog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) /* Context: process, rtnl_lock() held. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) static int efx_xdp(struct net_device *dev, struct netdev_bpf *xdp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) struct efx_nic *efx = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) switch (xdp->command) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) case XDP_SETUP_PROG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) return efx_xdp_setup_prog(efx, xdp->prog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) static int efx_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **xdpfs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) u32 flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) struct efx_nic *efx = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (!netif_running(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) return efx_xdp_tx_buffers(efx, n, xdpfs, flags & XDP_XMIT_FLUSH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) static void efx_update_name(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) strcpy(efx->name, efx->net_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) efx_mtd_rename(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) efx_set_channel_names(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) static int efx_netdev_event(struct notifier_block *this,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) unsigned long event, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) struct net_device *net_dev = netdev_notifier_info_to_dev(ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) if ((net_dev->netdev_ops == &efx_netdev_ops) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) event == NETDEV_CHANGENAME)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) efx_update_name(netdev_priv(net_dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) static struct notifier_block efx_netdev_notifier = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) .notifier_call = efx_netdev_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) show_phy_type(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) struct efx_nic *efx = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) return sprintf(buf, "%d\n", efx->phy_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) static DEVICE_ATTR(phy_type, 0444, show_phy_type, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) static int efx_register_netdev(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) struct net_device *net_dev = efx->net_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) struct efx_channel *channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) net_dev->watchdog_timeo = 5 * HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) net_dev->irq = efx->pci_dev->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) net_dev->netdev_ops = &efx_netdev_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) net_dev->priv_flags |= IFF_UNICAST_FLT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) net_dev->ethtool_ops = &efx_ethtool_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) net_dev->gso_max_segs = EFX_TSO_MAX_SEGS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) net_dev->min_mtu = EFX_MIN_MTU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) net_dev->max_mtu = EFX_MAX_MTU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) /* Enable resets to be scheduled and check whether any were
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) * already requested. If so, the NIC is probably hosed so we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) * abort.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) efx->state = STATE_READY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) smp_mb(); /* ensure we change state before checking reset_pending */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) if (efx->reset_pending) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) netif_err(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) "aborting probe due to scheduled reset\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) goto fail_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) rc = dev_alloc_name(net_dev, net_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) goto fail_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) efx_update_name(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) /* Always start with carrier off; PHY events will detect the link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) netif_carrier_off(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) rc = register_netdevice(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) goto fail_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) efx_for_each_channel(channel, efx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) struct efx_tx_queue *tx_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) efx_for_each_channel_tx_queue(tx_queue, channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) efx_init_tx_queue_core_txq(tx_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) efx_associate(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) rc = device_create_file(&efx->pci_dev->dev, &dev_attr_phy_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) netif_err(efx, drv, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) "failed to init net dev attributes\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) goto fail_registered;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) efx_init_mcdi_logging(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) fail_registered:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) efx_dissociate(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) unregister_netdevice(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) fail_locked:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) efx->state = STATE_UNINIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) netif_err(efx, drv, efx->net_dev, "could not register net dev\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) static void efx_unregister_netdev(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) if (!efx->net_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) BUG_ON(netdev_priv(efx->net_dev) != efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) if (efx_dev_registered(efx)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) strlcpy(efx->name, pci_name(efx->pci_dev), sizeof(efx->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) efx_fini_mcdi_logging(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) unregister_netdev(efx->net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) * List of NICs we support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) **************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) /* PCI device ID table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) static const struct pci_device_id efx_pci_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x0803), /* SFC9020 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) .driver_data = (unsigned long) &siena_a0_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x0813), /* SFL9021 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) .driver_data = (unsigned long) &siena_a0_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x0903), /* SFC9120 PF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) .driver_data = (unsigned long) &efx_hunt_a0_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x1903), /* SFC9120 VF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) .driver_data = (unsigned long) &efx_hunt_a0_vf_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x0923), /* SFC9140 PF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) .driver_data = (unsigned long) &efx_hunt_a0_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x1923), /* SFC9140 VF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) .driver_data = (unsigned long) &efx_hunt_a0_vf_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x0a03), /* SFC9220 PF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) .driver_data = (unsigned long) &efx_hunt_a0_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x1a03), /* SFC9220 VF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) .driver_data = (unsigned long) &efx_hunt_a0_vf_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x0b03), /* SFC9250 PF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) .driver_data = (unsigned long) &efx_hunt_a0_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) {PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x1b03), /* SFC9250 VF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) .driver_data = (unsigned long) &efx_hunt_a0_vf_nic_type},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) {0} /* end of list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) * Data housekeeping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) **************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) void efx_update_sw_stats(struct efx_nic *efx, u64 *stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) u64 n_rx_nodesc_trunc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) struct efx_channel *channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) efx_for_each_channel(channel, efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) n_rx_nodesc_trunc += channel->n_rx_nodesc_trunc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) stats[GENERIC_STAT_rx_nodesc_trunc] = n_rx_nodesc_trunc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) stats[GENERIC_STAT_rx_noskb_drops] = atomic_read(&efx->n_rx_noskb_drops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) * PCI interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) **************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) /* Main body of final NIC shutdown code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) * This is called only at module unload (or hotplug removal).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) static void efx_pci_remove_main(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) /* Flush reset_work. It can no longer be scheduled since we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) * are not READY.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) BUG_ON(efx->state == STATE_READY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) efx_flush_reset_workqueue(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) efx_disable_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) efx_clear_interrupt_affinity(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) efx_nic_fini_interrupt(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) efx_fini_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) efx->type->fini(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) efx_fini_napi(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) efx_remove_all(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) /* Final NIC shutdown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) * This is called only at module unload (or hotplug removal). A PF can call
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) * this on its VFs to ensure they are unbound first.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) static void efx_pci_remove(struct pci_dev *pci_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) struct efx_nic *efx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) efx = pci_get_drvdata(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) if (!efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) /* Mark the NIC as fini, then stop the interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) efx_dissociate(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) dev_close(efx->net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) efx_disable_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) efx->state = STATE_UNINIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) if (efx->type->sriov_fini)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) efx->type->sriov_fini(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) efx_unregister_netdev(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) efx_mtd_remove(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) efx_pci_remove_main(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) efx_fini_io(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) netif_dbg(efx, drv, efx->net_dev, "shutdown successful\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) efx_fini_struct(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) free_netdev(efx->net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) pci_disable_pcie_error_reporting(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) /* NIC VPD information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) * Called during probe to display the part number of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) * installed NIC. VPD is potentially very large but this should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) * always appear within the first 512 bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) #define SFC_VPD_LEN 512
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) static void efx_probe_vpd_strings(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) struct pci_dev *dev = efx->pci_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) char vpd_data[SFC_VPD_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) ssize_t vpd_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) int ro_start, ro_size, i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) /* Get the vpd data from the device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) vpd_size = pci_read_vpd(dev, 0, sizeof(vpd_data), vpd_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) if (vpd_size <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) netif_err(efx, drv, efx->net_dev, "Unable to read VPD\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) /* Get the Read only section */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) ro_start = pci_vpd_find_tag(vpd_data, 0, vpd_size, PCI_VPD_LRDT_RO_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) if (ro_start < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) netif_err(efx, drv, efx->net_dev, "VPD Read-only not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) ro_size = pci_vpd_lrdt_size(&vpd_data[ro_start]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) j = ro_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) i = ro_start + PCI_VPD_LRDT_TAG_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) if (i + j > vpd_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) j = vpd_size - i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) /* Get the Part number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) i = pci_vpd_find_info_keyword(vpd_data, i, j, "PN");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) if (i < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) netif_err(efx, drv, efx->net_dev, "Part number not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) j = pci_vpd_info_field_size(&vpd_data[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) i += PCI_VPD_INFO_FLD_HDR_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) if (i + j > vpd_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) netif_err(efx, drv, efx->net_dev, "Incomplete part number\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) netif_info(efx, drv, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) "Part Number : %.*s\n", j, &vpd_data[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) i = ro_start + PCI_VPD_LRDT_TAG_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) j = ro_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) i = pci_vpd_find_info_keyword(vpd_data, i, j, "SN");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) if (i < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) netif_err(efx, drv, efx->net_dev, "Serial number not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) j = pci_vpd_info_field_size(&vpd_data[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) i += PCI_VPD_INFO_FLD_HDR_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) if (i + j > vpd_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) netif_err(efx, drv, efx->net_dev, "Incomplete serial number\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) efx->vpd_sn = kmalloc(j + 1, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) if (!efx->vpd_sn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) snprintf(efx->vpd_sn, j + 1, "%s", &vpd_data[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) /* Main body of NIC initialisation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) * This is called at module load (or hotplug insertion, theoretically).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) static int efx_pci_probe_main(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) /* Do start-of-day initialisation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) rc = efx_probe_all(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) efx_init_napi(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) down_write(&efx->filter_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) rc = efx->type->init(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) up_write(&efx->filter_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) netif_err(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) "failed to initialise NIC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) goto fail3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) rc = efx_init_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) netif_err(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) "failed to initialise port\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) goto fail4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) rc = efx_nic_init_interrupt(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) goto fail5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) efx_set_interrupt_affinity(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) rc = efx_enable_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) goto fail6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) fail6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) efx_clear_interrupt_affinity(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) efx_nic_fini_interrupt(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) fail5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) efx_fini_port(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) fail4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) efx->type->fini(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) fail3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) efx_fini_napi(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) efx_remove_all(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) fail1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) static int efx_pci_probe_post_io(struct efx_nic *efx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) struct net_device *net_dev = efx->net_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) int rc = efx_pci_probe_main(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) if (efx->type->sriov_init) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) rc = efx->type->sriov_init(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) netif_err(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) "SR-IOV can't be enabled rc %d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) /* Determine netdevice features */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) net_dev->features |= (efx->type->offload_features | NETIF_F_SG |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) NETIF_F_TSO | NETIF_F_RXCSUM | NETIF_F_RXALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) if (efx->type->offload_features & (NETIF_F_IPV6_CSUM | NETIF_F_HW_CSUM))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) net_dev->features |= NETIF_F_TSO6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) /* Check whether device supports TSO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) if (!efx->type->tso_versions || !efx->type->tso_versions(efx))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) net_dev->features &= ~NETIF_F_ALL_TSO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) /* Mask for features that also apply to VLAN devices */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) net_dev->vlan_features |= (NETIF_F_HW_CSUM | NETIF_F_SG |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) NETIF_F_HIGHDMA | NETIF_F_ALL_TSO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) NETIF_F_RXCSUM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) net_dev->hw_features |= net_dev->features & ~efx->fixed_features;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) /* Disable receiving frames with bad FCS, by default. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) net_dev->features &= ~NETIF_F_RXALL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) /* Disable VLAN filtering by default. It may be enforced if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) * the feature is fixed (i.e. VLAN filters are required to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) * receive VLAN tagged packets due to vPort restrictions).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) net_dev->features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) net_dev->features |= efx->fixed_features;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) rc = efx_register_netdev(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) if (!rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) efx_pci_remove_main(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) /* NIC initialisation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) * This is called at module load (or hotplug insertion,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) * theoretically). It sets up PCI mappings, resets the NIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) * sets up and registers the network devices with the kernel and hooks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) * the interrupt service routine. It does not prepare the device for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) * transmission; this is left to the first time one of the network
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) * interfaces is brought up (i.e. efx_net_open).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) static int efx_pci_probe(struct pci_dev *pci_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) const struct pci_device_id *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) struct net_device *net_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) struct efx_nic *efx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) /* Allocate and initialise a struct net_device and struct efx_nic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) net_dev = alloc_etherdev_mqs(sizeof(*efx), EFX_MAX_CORE_TX_QUEUES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) EFX_MAX_RX_QUEUES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) if (!net_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) efx = netdev_priv(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) efx->type = (const struct efx_nic_type *) entry->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) efx->fixed_features |= NETIF_F_HIGHDMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) pci_set_drvdata(pci_dev, efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) SET_NETDEV_DEV(net_dev, &pci_dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) rc = efx_init_struct(efx, pci_dev, net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) netif_info(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) "Solarflare NIC detected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) if (!efx->type->is_vf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) efx_probe_vpd_strings(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) /* Set up basic I/O (BAR mappings etc) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) rc = efx_init_io(efx, efx->type->mem_bar(efx), efx->type->max_dma_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) efx->type->mem_map_size(efx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) goto fail2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) rc = efx_pci_probe_post_io(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) /* On failure, retry once immediately.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) * If we aborted probe due to a scheduled reset, dismiss it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) efx->reset_pending = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) rc = efx_pci_probe_post_io(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) /* On another failure, retry once more
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) * after a 50-305ms delay.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) unsigned char r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) get_random_bytes(&r, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) msleep((unsigned int)r + 50);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) efx->reset_pending = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) rc = efx_pci_probe_post_io(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) goto fail3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) netif_dbg(efx, probe, efx->net_dev, "initialisation successful\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) /* Try to create MTDs, but allow this to fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) rc = efx_mtd_probe(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) if (rc && rc != -EPERM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) netif_warn(efx, probe, efx->net_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) "failed to create MTDs (%d)\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) (void)pci_enable_pcie_error_reporting(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) if (efx->type->udp_tnl_push_ports)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) efx->type->udp_tnl_push_ports(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) fail3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) efx_fini_io(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) fail2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) efx_fini_struct(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) fail1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) WARN_ON(rc > 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) netif_dbg(efx, drv, efx->net_dev, "initialisation failed. rc=%d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) free_netdev(net_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) /* efx_pci_sriov_configure returns the actual number of Virtual Functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) * enabled on success
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) static int efx_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) struct efx_nic *efx = pci_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) if (efx->type->sriov_configure) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) rc = efx->type->sriov_configure(efx, num_vfs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) return num_vfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) static int efx_pm_freeze(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) struct efx_nic *efx = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) if (efx->state != STATE_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) efx->state = STATE_UNINIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) efx_device_detach_sync(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) efx_stop_all(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) efx_disable_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) static int efx_pm_thaw(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) struct efx_nic *efx = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) if (efx->state != STATE_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) rc = efx_enable_interrupts(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) mutex_lock(&efx->mac_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) efx_mcdi_port_reconfigure(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) mutex_unlock(&efx->mac_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) efx_start_all(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) efx_device_attach_if_not_resetting(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) efx->state = STATE_READY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) efx->type->resume_wol(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) /* Reschedule any quenched resets scheduled during efx_pm_freeze() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) efx_queue_reset_work(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) static int efx_pm_poweroff(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) struct pci_dev *pci_dev = to_pci_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) struct efx_nic *efx = pci_get_drvdata(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) efx->type->fini(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) efx->reset_pending = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) pci_save_state(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) return pci_set_power_state(pci_dev, PCI_D3hot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) /* Used for both resume and restore */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) static int efx_pm_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) struct pci_dev *pci_dev = to_pci_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) struct efx_nic *efx = pci_get_drvdata(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) rc = pci_set_power_state(pci_dev, PCI_D0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) pci_restore_state(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) rc = pci_enable_device(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) pci_set_master(efx->pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) rc = efx->type->reset(efx, RESET_TYPE_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) down_write(&efx->filter_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) rc = efx->type->init(efx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) up_write(&efx->filter_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) rc = efx_pm_thaw(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) static int efx_pm_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) efx_pm_freeze(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) rc = efx_pm_poweroff(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) efx_pm_resume(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) static const struct dev_pm_ops efx_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) .suspend = efx_pm_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) .resume = efx_pm_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) .freeze = efx_pm_freeze,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) .thaw = efx_pm_thaw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) .poweroff = efx_pm_poweroff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) .restore = efx_pm_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) static struct pci_driver efx_pci_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) .name = KBUILD_MODNAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) .id_table = efx_pci_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) .probe = efx_pci_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) .remove = efx_pci_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) .driver.pm = &efx_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) .err_handler = &efx_err_handlers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) .sriov_configure = efx_pci_sriov_configure,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) * Kernel module interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) *************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) static int __init efx_init_module(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) printk(KERN_INFO "Solarflare NET driver\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) rc = register_netdevice_notifier(&efx_netdev_notifier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) goto err_notifier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) rc = efx_init_sriov();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) goto err_sriov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) rc = efx_create_reset_workqueue();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) goto err_reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) rc = pci_register_driver(&efx_pci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) goto err_pci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) rc = pci_register_driver(&ef100_pci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) goto err_pci_ef100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) err_pci_ef100:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) pci_unregister_driver(&efx_pci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) err_pci:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) efx_destroy_reset_workqueue();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) err_reset:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) efx_fini_sriov();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) err_sriov:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) unregister_netdevice_notifier(&efx_netdev_notifier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) err_notifier:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) static void __exit efx_exit_module(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) printk(KERN_INFO "Solarflare NET driver unloading\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) pci_unregister_driver(&ef100_pci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) pci_unregister_driver(&efx_pci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) efx_destroy_reset_workqueue();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) #ifdef CONFIG_SFC_SRIOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) efx_fini_sriov();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) unregister_netdevice_notifier(&efx_netdev_notifier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) module_init(efx_init_module);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) module_exit(efx_exit_module);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) MODULE_AUTHOR("Solarflare Communications and "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) "Michael Brown <mbrown@fensystems.co.uk>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) MODULE_DESCRIPTION("Solarflare network driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) MODULE_DEVICE_TABLE(pci, efx_pci_table);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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