sfc: Add X4 PF support

Add X4 series. Most functionality is the same as previous
EF10 nics but enough is different to warrant a new nic type struct
and revision; for example legacy interrupts and SRIOV are
not supported.

Most removed features will be re-added later as new implementations.

Signed-off-by: Jonathan Cooper <[e-mail]>
Acked-by: Edward Cree <[e-mail]>
Acked-by: Martin Habets <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/ethernet/sfc/ef10.c

···
 	.sensor_event = efx_mcdi_sensor_event,
 	.rx_recycle_ring_size = efx_ef10_recycle_ring_size,
 };
+
+const struct efx_nic_type efx_x4_nic_type = {
+	.is_vf = false,
+	.mem_bar = efx_ef10_pf_mem_bar,
+	.mem_map_size = efx_ef10_mem_map_size,
+	.probe = efx_ef10_probe_pf,
+	.remove = efx_ef10_remove,
+	.dimension_resources = efx_ef10_dimension_resources,
+	.init = efx_ef10_init_nic,
+	.fini = efx_ef10_fini_nic,
+	.map_reset_reason = efx_ef10_map_reset_reason,
+	.map_reset_flags = efx_ef10_map_reset_flags,
+	.reset = efx_ef10_reset,
+	.probe_port = efx_mcdi_port_probe,
+	.remove_port = efx_mcdi_port_remove,
+	.fini_dmaq = efx_fini_dmaq,
+	.prepare_flr = efx_ef10_prepare_flr,
+	.finish_flr = efx_port_dummy_op_void,
+	.describe_stats = efx_ef10_describe_stats,
+	.update_stats = efx_ef10_update_stats_pf,
+	.start_stats = efx_mcdi_mac_start_stats,
+	.pull_stats = efx_mcdi_mac_pull_stats,
+	.stop_stats = efx_mcdi_mac_stop_stats,
+	.push_irq_moderation = efx_ef10_push_irq_moderation,
+	.reconfigure_mac = efx_ef10_mac_reconfigure,
+	.check_mac_fault = efx_mcdi_mac_check_fault,
+	.reconfigure_port = efx_mcdi_port_reconfigure,
+	.get_wol = efx_ef10_get_wol,
+	.set_wol = efx_ef10_set_wol,
+	.resume_wol = efx_port_dummy_op_void,
+	.get_fec_stats = efx_ef10_get_fec_stats,
+	.test_chip = efx_ef10_test_chip,
+	.test_nvram = efx_mcdi_nvram_test_all,
+	.mcdi_request = efx_ef10_mcdi_request,
+	.mcdi_poll_response = efx_ef10_mcdi_poll_response,
+	.mcdi_read_response = efx_ef10_mcdi_read_response,
+	.mcdi_poll_reboot = efx_ef10_mcdi_poll_reboot,
+	.mcdi_reboot_detected = efx_ef10_mcdi_reboot_detected,
+	.irq_enable_master = efx_port_dummy_op_void,
+	.irq_test_generate = efx_ef10_irq_test_generate,
+	.irq_disable_non_ev = efx_port_dummy_op_void,
+	.irq_handle_msi = efx_ef10_msi_interrupt,
+	.tx_probe = efx_ef10_tx_probe,
+	.tx_init = efx_ef10_tx_init,
+	.tx_write = efx_ef10_tx_write,
+	.tx_limit_len = efx_ef10_tx_limit_len,
+	.tx_enqueue = __efx_enqueue_skb,
+	.rx_push_rss_config = efx_mcdi_pf_rx_push_rss_config,
+	.rx_pull_rss_config = efx_mcdi_rx_pull_rss_config,
+	.rx_push_rss_context_config = efx_mcdi_rx_push_rss_context_config,
+	.rx_pull_rss_context_config = efx_mcdi_rx_pull_rss_context_config,
+	.rx_restore_rss_contexts = efx_mcdi_rx_restore_rss_contexts,
+	.rx_probe = efx_mcdi_rx_probe,
+	.rx_init = efx_mcdi_rx_init,
+	.rx_remove = efx_mcdi_rx_remove,
+	.rx_write = efx_ef10_rx_write,
+	.rx_defer_refill = efx_ef10_rx_defer_refill,
+	.rx_packet = __efx_rx_packet,
+	.ev_probe = efx_mcdi_ev_probe,
+	.ev_init = efx_ef10_ev_init,
+	.ev_fini = efx_mcdi_ev_fini,
+	.ev_remove = efx_mcdi_ev_remove,
+	.ev_process = efx_ef10_ev_process,
+	.ev_read_ack = efx_ef10_ev_read_ack,
+	.ev_test_generate = efx_ef10_ev_test_generate,
+	.filter_table_probe = efx_ef10_filter_table_probe,
+	.filter_table_restore = efx_mcdi_filter_table_restore,
+	.filter_table_remove = efx_ef10_filter_table_remove,
+	.filter_insert = efx_mcdi_filter_insert,
+	.filter_remove_safe = efx_mcdi_filter_remove_safe,
+	.filter_get_safe = efx_mcdi_filter_get_safe,
+	.filter_clear_rx = efx_mcdi_filter_clear_rx,
+	.filter_count_rx_used = efx_mcdi_filter_count_rx_used,
+	.filter_get_rx_id_limit = efx_mcdi_filter_get_rx_id_limit,
+	.filter_get_rx_ids = efx_mcdi_filter_get_rx_ids,
+#ifdef CONFIG_RFS_ACCEL
+	.filter_rfs_expire_one = efx_mcdi_filter_rfs_expire_one,
+#endif
+#ifdef CONFIG_SFC_MTD
+	.mtd_probe = efx_ef10_mtd_probe,
+	.mtd_rename = efx_mcdi_mtd_rename,
+	.mtd_read = efx_mcdi_mtd_read,
+	.mtd_erase = efx_mcdi_mtd_erase,
+	.mtd_write = efx_mcdi_mtd_write,
+	.mtd_sync = efx_mcdi_mtd_sync,
+#endif
+	.ptp_write_host_time = efx_ef10_ptp_write_host_time,
+	.ptp_set_ts_sync_events = efx_ef10_ptp_set_ts_sync_events,
+	.ptp_set_ts_config = efx_ef10_ptp_set_ts_config,
+	.vlan_rx_add_vid = efx_ef10_vlan_rx_add_vid,
+	.vlan_rx_kill_vid = efx_ef10_vlan_rx_kill_vid,
+	.udp_tnl_push_ports = efx_ef10_udp_tnl_push_ports,
+	.udp_tnl_has_port = efx_ef10_udp_tnl_has_port,
+#ifdef CONFIG_SFC_SRIOV
+	/* currently set to the VF versions of these functions
+	 * because SRIOV will be reimplemented later.
+	 */
+	.vswitching_probe = efx_ef10_vswitching_probe_vf,
+	.vswitching_restore = efx_ef10_vswitching_restore_vf,
+	.vswitching_remove = efx_ef10_vswitching_remove_vf,
+#endif
+	.get_mac_address = efx_ef10_get_mac_address_pf,
+	.set_mac_address = efx_ef10_set_mac_address,
+	.tso_versions = efx_ef10_tso_versions,
+
+	.get_phys_port_id = efx_ef10_get_phys_port_id,
+	.revision = EFX_REV_X4,
+	.max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),
+	.rx_prefix_size = ES_DZ_RX_PREFIX_SIZE,
+	.rx_hash_offset = ES_DZ_RX_PREFIX_HASH_OFST,
+	.rx_ts_offset = ES_DZ_RX_PREFIX_TSTAMP_OFST,
+	.can_rx_scatter = true,
+	.always_rx_scatter = true,
+	.option_descriptors = true,
+	.min_interrupt_mode = EFX_INT_MODE_MSIX,
+	.timer_period_max = 1 << ERF_DD_EVQ_IND_TIMER_VAL_WIDTH,
+	.offload_features = EF10_OFFLOAD_FEATURES,
+	.mcdi_max_ver = 2,
+	.max_rx_ip_filters = EFX_MCDI_FILTER_TBL_ROWS,
+	.hwtstamp_filters = 1 << HWTSTAMP_FILTER_NONE |
+			    1 << HWTSTAMP_FILTER_ALL,
+	.check_caps = ef10_check_caps,
+	.print_additional_fwver = efx_ef10_print_additional_fwver,
+	.sensor_event = efx_mcdi_sensor_event,
+	.rx_recycle_ring_size = efx_ef10_recycle_ring_size,
+};
+

drivers/net/ethernet/sfc/efx.c

···
 	 .driver_data = (unsigned long) &efx_hunt_a0_nic_type},
 	{PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x1b03),  /* SFC9250 VF */
 	 .driver_data = (unsigned long) &efx_hunt_a0_vf_nic_type},
+	{PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x0c03),  /* X4 PF (FF/LL) */
+	 .driver_data = (unsigned long)&efx_x4_nic_type},
+	{PCI_DEVICE(PCI_VENDOR_ID_SOLARFLARE, 0x2c03),  /* X4 PF (FF only) */
+	 .driver_data = (unsigned long)&efx_x4_nic_type},
 	{0}			/* end of list */
 };
 

drivers/net/ethernet/sfc/nic.h

···
 extern const struct efx_nic_type efx_hunt_a0_nic_type;
 extern const struct efx_nic_type efx_hunt_a0_vf_nic_type;
 
+extern const struct efx_nic_type efx_x4_nic_type;
+
 #endif /* EFX_NIC_H */

drivers/net/ethernet/sfc/nic_common.h

···
 	 */
 	EFX_REV_HUNT_A0 = 4,
 	EFX_REV_EF100 = 5,
+	EFX_REV_X4 = 6,
 };
 
 static inline int efx_nic_rev(struct efx_nic *efx)