[PATCH net-next] sfc: Add X4 PF support

From: jonathan.s.cooper
Date: Tue Sep 10 2024 - 11:32:29 EST


From: Jonathan Cooper <jonathan.s.cooper@xxxxxxx>

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 <jonathan.s.cooper@xxxxxxx>
---
drivers/net/ethernet/sfc/ef10.c | 127 ++++++++++++++++++++++++++
drivers/net/ethernet/sfc/efx.c | 4 +
drivers/net/ethernet/sfc/nic.h | 2 +
drivers/net/ethernet/sfc/nic_common.h | 1 +
4 files changed, 134 insertions(+)

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 7d69302ffa0a..de131fc5fa0b 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -4302,3 +4302,130 @@ const struct efx_nic_type efx_hunt_a0_nic_type = {
.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,
+};
+
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 6f1a01ded7d4..36b3b57e2055 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -821,6 +821,10 @@ static const struct pci_device_id efx_pci_table[] = {
.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 */
};

diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index 1db64fc6e909..9fa5c4c713ab 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -211,4 +211,6 @@ int efx_ef10_tx_tso_desc(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
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 */
diff --git a/drivers/net/ethernet/sfc/nic_common.h b/drivers/net/ethernet/sfc/nic_common.h
index 466df5348b29..7ec4ac7b7ff5 100644
--- a/drivers/net/ethernet/sfc/nic_common.h
+++ b/drivers/net/ethernet/sfc/nic_common.h
@@ -21,6 +21,7 @@ enum {
*/
EFX_REV_HUNT_A0 = 4,
EFX_REV_EF100 = 5,
+ EFX_REV_X4 = 6,
};

static inline int efx_nic_rev(struct efx_nic *efx)
--
2.17.1