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- /**************************************************************************
- *
- * Device driver for Solarflare Communications EF10 devices
- *
- * Written by Shradha Shah <sshah@solarflare.com>
- *
- * Copyright 2012-2017 Solarflare Communications Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- *
- ***************************************************************************/
- #include <stdlib.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <errno.h>
- #include <byteswap.h>
- #include <ipxe/io.h>
- #include <ipxe/pci.h>
- #include <ipxe/malloc.h>
- #include <ipxe/ethernet.h>
- #include <ipxe/iobuf.h>
- #include <ipxe/netdevice.h>
- #include "efx_hunt.h"
- #include "efx_bitfield.h"
- #include "ef10_regs.h"
- #include "mc_driver_pcol.h"
- #include <ipxe/if_ether.h>
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- #define HUNTINGTON_NVRAM_CHUNK 0x80
- #define HUNTINGTON_NVS_MAX_LENGTH 0x1000
-
- #define EMCDI_IO(code) EUNIQ(EINFO_EIO, (code))
-
- #ifndef MIN
- #define MIN(a, b) ((a) < (b) ? (a) : (b))
- #endif
- #ifndef MAX
- #define MAX(_a, _b) ((_a) > (_b) ? (_a) : (_b))
- #endif
-
- struct hunt_nic *primary_nics = NULL;
-
- struct hunt_nic {
- struct efx_nic efx;
-
- /* PHY information */
- unsigned int phy_cap_mask;
- unsigned int phy_cap;
- unsigned long link_poll_timer;
-
- /* resource housekeeping */
- uint64_t uc_filter_id;
- uint64_t mc_filter_id;
- u8 mac[ETH_ALEN];
-
- struct {
- /* Common payload for all MCDI requests */
- unsigned int seqno;
-
- size_t resp_hdr_len;
- size_t resp_data_len;
-
- struct io_buffer *iob;
- uint64_t dma_addr;
- } mcdi;
-
- struct hunt_nic *primary;
- struct hunt_nic *next_primary;
- u32 flags;
- };
-
- static int hunt_nic_is_primary(struct hunt_nic *hunt)
- {
- return (hunt->flags & (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_PRIMARY));
- }
-
- /*******************************************************************************
- *
- *
- * MCDI transport
- *
- * This has been based on the implementation of MCDI in the common code driver.
- *
- *
- ******************************************************************************/
-
- static int hunt_mcdi_init(struct hunt_nic *hunt)
- {
- size_t max_msg_size;
- int rc;
-
- /* The MCDI message has two 32-bit headers (the MCDI header and the
- * MCDI v2 extended command) and then up to MCDI_CTL_SDU_LEN_MAX_V2
- * bytes of payload
- */
- max_msg_size = 2 * sizeof(efx_dword_t) + MCDI_CTL_SDU_LEN_MAX_V2;
-
- hunt->mcdi.iob = alloc_iob(max_msg_size);
- if (!hunt->mcdi.iob) {
- rc = -ENOMEM;
- return rc;
- }
- return 0;
- }
-
- static void hunt_mcdi_copyin(struct hunt_nic *hunt,
- unsigned int cmd,
- uint8_t *inbuf,
- size_t inlen)
- {
- efx_dword_t hdr[2];
- uint32_t seqno;
- unsigned int xflags;
- size_t hdr_len;
- u8 *pdu = hunt->mcdi.iob->data;
-
- seqno = hunt->mcdi.seqno & MCDI_SEQ_MASK;
-
- xflags = 0;
-
- EFX_POPULATE_DWORD_7(hdr[0],
- MCDI_HEADER_CODE, MC_CMD_V2_EXTN,
- MCDI_HEADER_RESYNC, 1,
- MCDI_HEADER_DATALEN, 0,
- MCDI_HEADER_SEQ, seqno,
- MCDI_HEADER_ERROR, 0,
- MCDI_HEADER_RESPONSE, 0,
- MCDI_HEADER_XFLAGS, xflags);
- EFX_POPULATE_DWORD_2(hdr[1],
- MC_CMD_V2_EXTN_IN_EXTENDED_CMD, cmd,
- MC_CMD_V2_EXTN_IN_ACTUAL_LEN, inlen);
-
- hdr_len = sizeof(hdr);
-
- memcpy(pdu, &hdr, hdr_len);
- memcpy(pdu + hdr_len, inbuf, inlen);
-
- wmb(); /* Sync the data before ringing the doorbell */
-
- /* Ring the doorbell to post the command DMA address to the MC */
- hunt->mcdi.dma_addr = virt_to_bus(hunt->mcdi.iob->data);
-
- assert((hunt->mcdi.dma_addr & 0xFF) == 0);
-
- _efx_writel(&hunt->efx,
- cpu_to_le32((u64)hunt->mcdi.dma_addr >> 32),
- ER_DZ_MC_DB_LWRD);
-
- _efx_writel(&hunt->efx,
- cpu_to_le32((u32)hunt->mcdi.dma_addr),
- ER_DZ_MC_DB_HWRD);
- }
-
- static void hunt_mcdi_copyout(struct hunt_nic *hunt,
- uint8_t *outbuf, size_t outlen)
- {
- size_t offset;
- const u8 *pdu = hunt->mcdi.iob->data;
-
- offset = hunt->mcdi.resp_hdr_len;
-
- if (outlen > 0)
- memcpy(outbuf, pdu+offset, outlen);
- }
-
- static int hunt_mcdi_request_poll(struct hunt_nic *hunt, bool quiet)
- {
- unsigned int resplen, respseq, error;
- unsigned long finish;
- efx_dword_t errdword;
- efx_qword_t qword;
- const efx_dword_t *pdu = hunt->mcdi.iob->data;
- const u8 *pdu1 = hunt->mcdi.iob->data;
- int delay, rc;
-
- /* Spin for up to 5s, polling at intervals of 10us, 20us, ... ~100ms */
- finish = currticks() + (5 * TICKS_PER_SEC);
- delay = 10;
- while (1) {
- udelay(delay);
-
- /* Check for an MCDI response */
- if (EFX_DWORD_FIELD(*pdu, MCDI_HEADER_RESPONSE))
- break;
-
- if (currticks() >= finish)
- return -ETIMEDOUT;
-
- if (delay < 100000)
- delay *= 2;
- }
-
- memcpy(&qword, pdu1, 8);
-
- /* qword.dword[0] is the MCDI header; qword.dword[1] is the MCDI v2
- * extended command
- */
- respseq = EFX_DWORD_FIELD(qword.dword[0], MCDI_HEADER_SEQ);
- error = EFX_DWORD_FIELD(qword.dword[0], MCDI_HEADER_ERROR);
- resplen = EFX_DWORD_FIELD(qword.dword[1], MC_CMD_V2_EXTN_IN_ACTUAL_LEN);
-
- if (error && resplen == 0) {
- if (!quiet)
- DBGC(hunt, "MC rebooted\n");
- return -EIO;
- } else if ((respseq ^ hunt->mcdi.seqno) & MCDI_SEQ_MASK) {
- if (!quiet)
- DBGC(hunt, "MC response mismatch rxseq 0x%x txseq "
- "0x%x\n", respseq, hunt->mcdi.seqno);
- return -EIO;
- } else if (error) {
- memcpy(&errdword, pdu1 + 8, 4);
- rc = EFX_DWORD_FIELD(errdword, EFX_DWORD_0);
- switch (rc) {
- case MC_CMD_ERR_ENOENT:
- return -ENOENT;
- case MC_CMD_ERR_EINTR:
- return -EINTR;
- case MC_CMD_ERR_EACCES:
- return -EACCES;
- case MC_CMD_ERR_EBUSY:
- return -EBUSY;
- case MC_CMD_ERR_EINVAL:
- return -EINVAL;
- case MC_CMD_ERR_EDEADLK:
- return -EDEADLK;
- case MC_CMD_ERR_ENOSYS:
- return -ENOSYS;
- case MC_CMD_ERR_ETIME:
- return -ETIME;
- case MC_CMD_ERR_EPERM:
- return -EPERM;
- default:
- /* Return the MC error in an I/O error. */
- return EMCDI_IO(rc & 0xff);
- }
- }
- hunt->mcdi.resp_hdr_len = 8;
- hunt->mcdi.resp_data_len = resplen;
-
- return 0;
- }
-
- static void hunt_mcdi_fini(struct hunt_nic *hunt)
- {
- free_iob(hunt->mcdi.iob);
- }
-
- int _hunt_mcdi(struct efx_nic *efx, unsigned int cmd,
- const efx_dword_t *inbuf, size_t inlen,
- efx_dword_t *outbuf, size_t outlen,
- size_t *outlen_actual, bool quiet)
- {
- int rc;
- struct hunt_nic *hunt = (struct hunt_nic *) efx;
- size_t local_outlen_actual;
-
- if (outlen_actual == NULL)
- outlen_actual = &local_outlen_actual;
-
- ++hunt->mcdi.seqno;
- hunt_mcdi_copyin(hunt, cmd, (uint8_t *) inbuf, inlen);
-
- rc = hunt_mcdi_request_poll(hunt, quiet);
- if (rc != 0) {
- if (!quiet)
- DBGC(hunt, "MC response to cmd 0x%x: %s\n",
- cmd, strerror(rc));
- return rc;
- }
-
- *outlen_actual = hunt->mcdi.resp_data_len;
-
- hunt_mcdi_copyout(hunt, (uint8_t *) outbuf, outlen);
-
- return 0;
- }
-
- static int hunt_mcdi(struct hunt_nic *hunt, struct efx_mcdi_req_s *req)
- {
- return _hunt_mcdi(&hunt->efx, req->emr_cmd,
- (const efx_dword_t *) req->emr_in_buf,
- req->emr_in_length,
- (efx_dword_t *) req->emr_out_buf, req->emr_out_length,
- &req->emr_out_length_used, false);
- }
-
- static int hunt_mcdi_quiet(struct hunt_nic *hunt, struct efx_mcdi_req_s *req)
- {
- return _hunt_mcdi(&hunt->efx, req->emr_cmd,
- (const efx_dword_t *) req->emr_in_buf,
- req->emr_in_length,
- (efx_dword_t *) req->emr_out_buf, req->emr_out_length,
- &req->emr_out_length_used, true);
- }
-
- /*******************************************************************************
- *
- *
- * Hardware initialization
- *
- *
- ******************************************************************************/
- static int hunt_get_workarounds(struct hunt_nic *hunt, uint32_t *implemented,
- uint32_t *enabled)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_WORKAROUNDS_OUT_LEN);
- int rc;
-
- *implemented = *enabled = 0;
-
- req.emr_cmd = MC_CMD_GET_WORKAROUNDS;
- req.emr_in_buf = NULL;
- req.emr_in_length = 0;
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- rc = hunt_mcdi(hunt, &req);
-
- if (rc)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_GET_WORKAROUNDS_OUT_LEN)
- return -EMSGSIZE;
-
- *implemented = MCDI_DWORD(outbuf, GET_WORKAROUNDS_OUT_IMPLEMENTED);
- *enabled = MCDI_DWORD(outbuf, GET_WORKAROUNDS_OUT_ENABLED);
- return 0;
- }
-
- static int hunt_enable_workaround_35388(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(payload, MC_CMD_WORKAROUND_IN_LEN);
-
- req.emr_cmd = MC_CMD_WORKAROUND;
- req.emr_in_buf = payload;
- req.emr_in_length = MC_CMD_WORKAROUND_IN_LEN;
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, WORKAROUND_IN_TYPE,
- MC_CMD_WORKAROUND_BUG35388);
- MCDI_SET_DWORD(req.emr_in_buf, WORKAROUND_IN_ENABLED, 1);
-
- /* If the firmware doesn't support this workaround, hunt_mcdi() will
- * return -EINVAL from hunt_mcdi_request_poll().
- */
- return hunt_mcdi(hunt, &req);
- }
-
- static int hunt_workaround_35388(struct hunt_nic *hunt)
- {
- uint32_t implemented, enabled;
- int rc = hunt_get_workarounds(hunt, &implemented, &enabled);
-
- if (rc < 0)
- return 0;
- if (!(implemented & MC_CMD_GET_WORKAROUNDS_OUT_BUG35388))
- return 0;
- if (enabled & MC_CMD_GET_WORKAROUNDS_OUT_BUG35388)
- return 1;
-
- rc = hunt_enable_workaround_35388(hunt);
- if (rc == 0)
- return 1; /* Workaround is enabled */
- else
- return 0;
- }
-
- static int hunt_get_port_assignment(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN);
- int rc;
-
- req.emr_cmd = MC_CMD_GET_PORT_ASSIGNMENT;
- req.emr_in_buf = NULL;
- req.emr_in_length = 0;
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- hunt->efx.port = MCDI_DWORD(req.emr_out_buf,
- GET_PORT_ASSIGNMENT_OUT_PORT);
- return 0;
- }
-
- static int hunt_mac_addr(struct hunt_nic *hunt, uint8_t *ll_addr)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_MAC_ADDRESSES_OUT_LEN);
- int rc;
-
- req.emr_cmd = MC_CMD_GET_MAC_ADDRESSES;
- req.emr_in_buf = NULL;
- req.emr_in_length = 0;
- req.emr_out_buf = outbuf;
- req.emr_out_length = MC_CMD_GET_MAC_ADDRESSES_OUT_LEN;
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_GET_MAC_ADDRESSES_OUT_LEN)
- return -EMSGSIZE;
-
- memcpy(ll_addr,
- MCDI_PTR(req.emr_out_buf, GET_MAC_ADDRESSES_OUT_MAC_ADDR_BASE),
- ETH_ALEN);
-
- return 0;
- }
-
- static int hunt_get_phy_cfg(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN);
- int rc;
-
- req.emr_cmd = MC_CMD_GET_PHY_CFG;
- req.emr_in_buf = NULL;
- req.emr_in_length = 0;
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_GET_PHY_CFG_OUT_LEN)
- return -EMSGSIZE;
-
- hunt->phy_cap_mask = hunt->phy_cap =
- MCDI_DWORD(req.emr_out_buf, GET_PHY_CFG_OUT_SUPPORTED_CAP);
- DBGC2(hunt, "GET_PHY_CFG: flags=%x, caps=%x\n", rc, hunt->phy_cap);
- return 0;
- }
-
- static int hunt_driver_attach(struct hunt_nic *hunt, int attach)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(inbuf, MC_CMD_DRV_ATTACH_IN_LEN);
- MCDI_DECLARE_BUF(outbuf, MC_CMD_DRV_ATTACH_EXT_OUT_LEN);
- int rc;
-
- req.emr_cmd = MC_CMD_DRV_ATTACH;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- /* Set the PREBOOT flag to indicate later instances of attach should
- * force an ENTITY RESET
- */
- if (attach)
- attach |= 1 << MC_CMD_DRV_PREBOOT_LBN;
-
- MCDI_SET_DWORD(req.emr_in_buf, DRV_ATTACH_IN_NEW_STATE, attach);
- MCDI_SET_DWORD(req.emr_in_buf, DRV_ATTACH_IN_UPDATE, 1);
- MCDI_SET_DWORD(req.emr_in_buf, DRV_ATTACH_IN_FIRMWARE_ID,
- MC_CMD_FW_DONT_CARE);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_DRV_ATTACH_OUT_LEN)
- return -EMSGSIZE;
-
- hunt->flags = MCDI_DWORD(outbuf, DRV_ATTACH_EXT_OUT_FUNC_FLAGS);
-
- return 0;
- }
-
- static int hunt_reset(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(inbuf, MC_CMD_ENTITY_RESET_IN_LEN);
-
- req.emr_cmd = MC_CMD_ENTITY_RESET;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_POPULATE_DWORD_1(req.emr_in_buf, ENTITY_RESET_IN_FLAG,
- ENTITY_RESET_IN_FUNCTION_RESOURCE_RESET, 1);
- return hunt_mcdi(hunt, &req);
- }
-
- static void hunt_clear_udp_tunnel_ports(struct hunt_nic *hunt)
- {
- MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_LENMAX);
- MCDI_DECLARE_BUF(outbuf, MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_OUT_LEN);
- struct efx_mcdi_req_s req;
- int rc;
-
- memset(inbuf, 0, MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_LENMAX);
- MCDI_SET_DWORD(inbuf, SET_TUNNEL_ENCAP_UDP_PORTS_IN_FLAGS,
- (1 << MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_UNLOADING_LBN));
-
- req.emr_cmd = MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- rc = hunt_mcdi_quiet(hunt, &req);
- if (rc)
- return;
-
- if (MCDI_DWORD(outbuf, SET_TUNNEL_ENCAP_UDP_PORTS_OUT_FLAGS) &
- (1 << MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_OUT_RESETTING_LBN)) {
- DBGC(hunt,
- "Rebooting MC due to clearing UDP tunnel port list\n");
- /* Delay for the MC reboot to complete. */
- mdelay(100);
- }
- }
-
- static int hunt_set_mac(struct hunt_nic *hunt)
- {
- struct net_device *netdev = hunt->efx.netdev;
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(payload, MC_CMD_SET_MAC_IN_LEN);
- unsigned int fcntl;
- int rc;
-
- req.emr_cmd = MC_CMD_SET_MAC;
- req.emr_in_buf = payload;
- req.emr_in_length = MC_CMD_SET_MAC_IN_LEN;
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, SET_MAC_IN_MTU,
- EFX_MAC_FRAME_LEN(ETH_FRAME_LEN));
- MCDI_SET_DWORD(req.emr_in_buf, SET_MAC_IN_DRAIN, 0);
- memcpy(MCDI_PTR(req.emr_in_buf, SET_MAC_IN_ADDR),
- netdev->ll_addr, ETH_ALEN);
- MCDI_SET_DWORD(req.emr_in_buf, SET_MAC_IN_REJECT, 0);
-
- /* If the PHY supports autnegotiation, then configure the MAC to match
- * the negotiated settings. Otherwise force the MAC to TX and RX flow
- * control.
- */
- if (hunt->phy_cap_mask & (1 << MC_CMD_PHY_CAP_AN_LBN))
- fcntl = MC_CMD_FCNTL_AUTO;
- else
- fcntl = MC_CMD_FCNTL_BIDIR;
- MCDI_SET_DWORD(req.emr_in_buf, SET_MAC_IN_FCNTL, fcntl);
-
- rc = hunt_mcdi(hunt, &req);
- /* Ignore failure for permissions reasons */
- if (rc == -EPERM)
- rc = 0;
- return rc;
- }
-
- static int hunt_alloc_vis(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(inbuf, MC_CMD_ALLOC_VIS_IN_LEN);
-
- req.emr_cmd = MC_CMD_ALLOC_VIS;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, ALLOC_VIS_IN_MIN_VI_COUNT, 1);
- MCDI_SET_DWORD(req.emr_in_buf, ALLOC_VIS_IN_MAX_VI_COUNT, 1);
-
- return hunt_mcdi(hunt, &req);
- }
-
- static void hunt_free_vis(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- int rc;
-
- req.emr_cmd = MC_CMD_FREE_VIS;
- req.emr_in_buf = NULL;
- req.emr_in_length = 0;
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- DBGC(hunt, "MC_CMD_FREE_VIS Failed\n");
- }
-
- /*******************************************************************************
- *
- *
- * Link state handling
- *
- *
- ******************************************************************************/
- static int hunt_check_link(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
- unsigned int flags, speed;
- bool up;
- int rc;
- static bool link_state = false;
-
- req.emr_cmd = MC_CMD_GET_LINK;
- req.emr_in_buf = NULL;
- req.emr_in_length = 0;
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_GET_LINK_OUT_LEN)
- return -EMSGSIZE;
-
- flags = MCDI_DWORD(req.emr_out_buf, GET_LINK_OUT_FLAGS);
- up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN));
- speed = MCDI_DWORD(req.emr_out_buf, GET_LINK_OUT_LINK_SPEED);
-
- /* Set netdev_link_*() based on the link status from the MC */
- if (up && speed)
- netdev_link_up(hunt->efx.netdev);
- else
- netdev_link_down(hunt->efx.netdev);
-
- if (up != link_state) {
- DBGC(hunt, "Link %s, flags=%x, our caps=%x, lpa=%x, speed=%d, fcntl=%x, mac_fault=%x\n",
- (up? "up": "down"), flags,
- MCDI_DWORD(req.emr_out_buf, GET_LINK_OUT_CAP),
- MCDI_DWORD(req.emr_out_buf, GET_LINK_OUT_LP_CAP),
- speed,
- MCDI_DWORD(req.emr_out_buf, GET_LINK_OUT_FCNTL),
- MCDI_DWORD(req.emr_out_buf, GET_LINK_OUT_MAC_FAULT));
- link_state = up;
- }
-
- return 0;
- }
-
- #define MCDI_PORT_SPEED_CAPS ((1 << MC_CMD_PHY_CAP_10HDX_LBN) | \
- (1 << MC_CMD_PHY_CAP_10FDX_LBN) | \
- (1 << MC_CMD_PHY_CAP_100HDX_LBN) | \
- (1 << MC_CMD_PHY_CAP_100FDX_LBN) | \
- (1 << MC_CMD_PHY_CAP_1000HDX_LBN) | \
- (1 << MC_CMD_PHY_CAP_1000FDX_LBN) | \
- (1 << MC_CMD_PHY_CAP_10000FDX_LBN) | \
- (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
-
- /*******************************************************************************
- *
- *
- * TX
- *
- *
- ******************************************************************************/
- static int
- hunt_tx_init(struct net_device *netdev, struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- dma_addr_t dma_addr;
- efx_qword_t *addr;
- MCDI_DECLARE_BUF(inbuf,
- MC_CMD_INIT_TXQ_IN_LEN(EFX_TXQ_NBUFS(EFX_TXD_SIZE)));
- int rc, npages;
-
- rc = efx_hunt_tx_init(netdev, &dma_addr);
- if (rc != 0)
- return rc;
-
- npages = EFX_TXQ_NBUFS(EFX_TXD_SIZE);
-
- req.emr_cmd = MC_CMD_INIT_TXQ;
- req.emr_in_buf = inbuf;
- req.emr_in_length = MC_CMD_INIT_TXQ_IN_LEN(npages);
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, INIT_TXQ_IN_SIZE, EFX_TXD_SIZE);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_TXQ_IN_TARGET_EVQ, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_TXQ_IN_LABEL, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_TXQ_IN_INSTANCE, 0);
-
- MCDI_POPULATE_DWORD_6(req.emr_in_buf, INIT_TXQ_IN_FLAGS,
- INIT_TXQ_IN_FLAG_BUFF_MODE, 0,
- INIT_TXQ_IN_FLAG_IP_CSUM_DIS, 1,
- INIT_TXQ_IN_FLAG_TCP_CSUM_DIS, 1,
- INIT_TXQ_IN_FLAG_TCP_UDP_ONLY, 0,
- INIT_TXQ_IN_CRC_MODE, 0,
- INIT_TXQ_IN_FLAG_TIMESTAMP, 0);
-
- MCDI_SET_DWORD(req.emr_in_buf, INIT_TXQ_IN_OWNER_ID, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_TXQ_IN_PORT_ID,
- EVB_PORT_ID_ASSIGNED);
-
- addr = (efx_qword_t *) MCDI_PTR(req.emr_in_buf, INIT_TXQ_IN_DMA_ADDR);
-
- EFX_POPULATE_QWORD_2(*addr,
- EFX_DWORD_1, (uint32_t)(dma_addr >> 32),
- EFX_DWORD_0, (uint32_t)(dma_addr & 0xffffffff));
-
- return hunt_mcdi(hunt, &req);
- }
-
- static void hunt_tx_fini(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_TXQ_IN_LEN);
- struct efx_nic *efx = &hunt->efx;
- struct efx_tx_queue *txq = &efx->txq;
- int rc;
-
- req.emr_cmd = MC_CMD_FINI_TXQ;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, FINI_TXQ_IN_INSTANCE, 0);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- DBGC(hunt, "MC_CMD_FINI_TXQ Failed\n");
-
- efx_hunt_free_special_buffer(txq->ring,
- sizeof(efx_tx_desc_t) * EFX_TXD_SIZE);
- txq->ring = NULL;
- }
-
- /*******************************************************************************
- *
- *
- * RX
- *
- *
- ******************************************************************************/
- static int hunt_rx_filter_insert(struct net_device *netdev,
- struct hunt_nic *hunt,
- int multicast)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
- MCDI_DECLARE_BUF(outbuf, MC_CMD_FILTER_OP_OUT_LEN);
- int rc;
- uint64_t filter_id;
- (void) netdev;
-
- req.emr_cmd = MC_CMD_FILTER_OP;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- MCDI_SET_DWORD(req.emr_in_buf, FILTER_OP_IN_OP,
- multicast ? MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE
- : MC_CMD_FILTER_OP_IN_OP_INSERT);
- MCDI_POPULATE_DWORD_1(req.emr_in_buf, FILTER_OP_IN_MATCH_FIELDS,
- FILTER_OP_IN_MATCH_DST_MAC, 1);
- if (multicast)
- memset(MCDI_PTR(req.emr_in_buf, FILTER_OP_IN_DST_MAC),
- 0xff, ETH_ALEN);
- else
- memcpy(MCDI_PTR(req.emr_in_buf, FILTER_OP_IN_DST_MAC),
- hunt->mac, ETH_ALEN);
-
- MCDI_SET_DWORD(req.emr_in_buf, FILTER_OP_IN_PORT_ID,
- EVB_PORT_ID_ASSIGNED);
- MCDI_SET_DWORD(req.emr_in_buf, FILTER_OP_IN_RX_DEST,
- MC_CMD_FILTER_OP_IN_RX_DEST_HOST);
- MCDI_SET_DWORD(req.emr_in_buf, FILTER_OP_IN_RX_QUEUE, 0);
- MCDI_SET_DWORD(req.emr_in_buf, FILTER_OP_IN_RX_MODE, 0);
- MCDI_SET_DWORD(req.emr_in_buf, FILTER_OP_IN_TX_DEST,
- MC_CMD_FILTER_OP_IN_TX_DEST_DEFAULT);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_FILTER_OP_OUT_LEN)
- return -EIO;
-
- filter_id = MCDI_QWORD(req.emr_out_buf, FILTER_OP_OUT_HANDLE);
- if (multicast)
- hunt->mc_filter_id = filter_id;
- else
- hunt->uc_filter_id = filter_id;
-
- return 0;
- }
-
- static int hunt_rx_filter_remove(struct hunt_nic *hunt,
- int multicast)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
-
- req.emr_cmd = MC_CMD_FILTER_OP;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, FILTER_OP_IN_OP,
- multicast ? MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE :
- MC_CMD_FILTER_OP_IN_OP_REMOVE);
- MCDI_SET_QWORD(req.emr_in_buf, FILTER_OP_IN_HANDLE,
- multicast ? hunt->mc_filter_id :
- hunt->uc_filter_id);
- return hunt_mcdi(hunt, &req);
- }
-
- static int hunt_get_mac(struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_MAC_ADDRESSES_OUT_LEN);
- int rc;
-
- req.emr_cmd = MC_CMD_GET_MAC_ADDRESSES;
- req.emr_in_buf = NULL;
- req.emr_in_length = 0;
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_INIT_EVQ_OUT_LEN)
- return -EMSGSIZE;
-
- memcpy(hunt->mac, MCDI_PTR(outbuf, GET_MAC_ADDRESSES_OUT_MAC_ADDR_BASE),
- ETH_ALEN);
- return 0;
- }
-
- static int hunt_rx_filter_init(struct net_device *netdev,
- struct hunt_nic *hunt)
- {
- int rc = hunt_get_mac(hunt);
-
- if (rc != 0)
- return rc;
-
- rc = hunt_rx_filter_insert(netdev, hunt, 0);
- if (rc != 0)
- return rc;
-
- rc = hunt_rx_filter_insert(netdev, hunt, 1);
- if (rc != 0)
- hunt_rx_filter_remove(hunt, 0);
-
- return rc;
- }
-
- static int
- hunt_rx_init(struct net_device *netdev,
- struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- dma_addr_t dma_addr;
- efx_qword_t *addr;
- MCDI_DECLARE_BUF(inbuf,
- MC_CMD_INIT_RXQ_IN_LEN(EFX_RXQ_NBUFS(EFX_RXD_SIZE)));
- int rc, npages;
-
- rc = efx_hunt_rx_init(netdev, &dma_addr);
- if (rc != 0)
- return rc;
-
- npages = EFX_RXQ_NBUFS(EFX_RXD_SIZE);
-
- req.emr_cmd = MC_CMD_INIT_RXQ;
- req.emr_in_buf = inbuf;
- req.emr_in_length = MC_CMD_INIT_RXQ_IN_LEN(npages);
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, INIT_RXQ_IN_SIZE, EFX_RXD_SIZE);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_RXQ_IN_TARGET_EVQ, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_RXQ_IN_LABEL, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_RXQ_IN_INSTANCE, 0);
- MCDI_POPULATE_DWORD_5(req.emr_in_buf, INIT_RXQ_IN_FLAGS,
- INIT_RXQ_IN_FLAG_BUFF_MODE, 0,
- INIT_RXQ_IN_FLAG_HDR_SPLIT, 0,
- INIT_RXQ_IN_FLAG_TIMESTAMP, 0,
- INIT_RXQ_IN_CRC_MODE, 0,
- INIT_RXQ_IN_FLAG_PREFIX, 1);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_RXQ_IN_OWNER_ID, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_RXQ_IN_PORT_ID,
- EVB_PORT_ID_ASSIGNED);
-
- addr = (efx_qword_t *) MCDI_PTR(req.emr_in_buf, INIT_RXQ_IN_DMA_ADDR);
-
- EFX_POPULATE_QWORD_2(*addr,
- EFX_DWORD_1, (uint32_t)(dma_addr >> 32),
- EFX_DWORD_0, (uint32_t)(dma_addr & 0xffffffff));
- return hunt_mcdi(hunt, &req);
- }
-
- static void hunt_rx_filter_fini(struct hunt_nic *hunt)
- {
- hunt_rx_filter_remove(hunt, 0);
- hunt_rx_filter_remove(hunt, 1);
- }
-
- static void hunt_rx_fini(struct hunt_nic *hunt)
- {
- MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_RXQ_IN_LEN);
- struct efx_mcdi_req_s req;
- struct efx_nic *efx = &hunt->efx;
- struct efx_rx_queue *rxq = &efx->rxq;
- int rc;
-
- req.emr_cmd = MC_CMD_FINI_RXQ;
- req.emr_in_buf = inbuf;
- req.emr_in_length = MC_CMD_FINI_RXQ_IN_LEN;
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, FINI_RXQ_IN_INSTANCE, 0);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- DBGC(hunt, "MC_CMD_FINI_RXQ Failed\n");
-
- efx_hunt_free_special_buffer(rxq->ring,
- sizeof(efx_rx_desc_t) * EFX_RXD_SIZE);
- rxq->ring = NULL;
- }
-
- /*******************************************************************************
- *
- *
- * Event queues and interrupts
- *
- *
- ******************************************************************************/
- static int
- hunt_ev_init(struct net_device *netdev,
- struct hunt_nic *hunt)
- {
- struct efx_mcdi_req_s req;
- dma_addr_t dma_addr;
- efx_qword_t *addr;
- MCDI_DECLARE_BUF(inbuf,
- MC_CMD_INIT_EVQ_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_SIZE)));
- MCDI_DECLARE_BUF(outbuf, MC_CMD_INIT_EVQ_OUT_LEN);
- int rc, npages;
-
- rc = efx_hunt_ev_init(netdev, &dma_addr);
- if (rc != 0)
- return rc;
-
- npages = EFX_EVQ_NBUFS(EFX_EVQ_SIZE);
-
- req.emr_cmd = MC_CMD_INIT_EVQ;
- req.emr_in_buf = inbuf;
- req.emr_in_length = MC_CMD_INIT_EVQ_IN_LEN(npages);
- req.emr_out_buf = outbuf;
- req.emr_out_length = sizeof(outbuf);
-
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_SIZE, EFX_EVQ_SIZE);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_INSTANCE, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_IRQ_NUM, 0);
-
- MCDI_POPULATE_DWORD_6(req.emr_in_buf, INIT_EVQ_IN_FLAGS,
- INIT_EVQ_IN_FLAG_INTERRUPTING, 1,
- INIT_EVQ_IN_FLAG_RPTR_DOS, 0,
- INIT_EVQ_IN_FLAG_INT_ARMD, 0,
- INIT_EVQ_IN_FLAG_CUT_THRU, 0,
- INIT_EVQ_IN_FLAG_RX_MERGE, 0,
- INIT_EVQ_IN_FLAG_TX_MERGE, 0);
-
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_TMR_MODE,
- MC_CMD_INIT_EVQ_IN_TMR_MODE_DIS);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_TMR_LOAD, 0);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_TMR_RELOAD, 0);
-
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_COUNT_MODE,
- MC_CMD_INIT_EVQ_IN_COUNT_MODE_DIS);
- MCDI_SET_DWORD(req.emr_in_buf, INIT_EVQ_IN_COUNT_THRSHLD, 0);
-
- addr = (efx_qword_t *) MCDI_PTR(req.emr_in_buf, INIT_EVQ_IN_DMA_ADDR);
-
- EFX_POPULATE_QWORD_2(*addr,
- EFX_DWORD_1, (uint32_t)(dma_addr >> 32),
- EFX_DWORD_0, (uint32_t)(dma_addr & 0xffffffff));
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- return rc;
-
- if (req.emr_out_length_used < MC_CMD_INIT_EVQ_OUT_LEN)
- return -EMSGSIZE;
-
- return 0;
- }
-
- static void hunt_ev_fini(struct hunt_nic *hunt)
- {
- MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_EVQ_IN_LEN);
- struct efx_mcdi_req_s req;
- struct efx_nic *efx = &hunt->efx;
- struct efx_ev_queue *evq = &efx->evq;
- int rc;
-
- req.emr_cmd = MC_CMD_FINI_EVQ;
- req.emr_in_buf = inbuf;
- req.emr_in_length = sizeof(inbuf);
- req.emr_out_buf = NULL;
- req.emr_out_length = 0;
-
- MCDI_SET_DWORD(req.emr_in_buf, FINI_EVQ_IN_INSTANCE, 0);
-
- rc = hunt_mcdi(hunt, &req);
- if (rc != 0)
- DBGC(hunt, "MC_CMD_FINI_EVQ Failed\n");
-
- efx_hunt_free_special_buffer(evq->ring,
- sizeof(efx_event_t) * EFX_EVQ_SIZE);
- evq->ring = NULL;
- }
-
- static void
- hunt_poll(struct net_device *netdev)
- {
- struct hunt_nic *hunt = netdev_priv(netdev);
-
- /* If called while already polling, return immediately */
- if (hunt->efx.state & EFX_STATE_POLLING)
- return;
- hunt->efx.state |= EFX_STATE_POLLING;
-
- /* Poll link state */
- if (hunt->link_poll_timer + TICKS_PER_SEC < currticks()) {
- hunt->link_poll_timer = currticks();
- hunt_check_link(hunt);
- }
-
- /* Poll data path */
- efx_hunt_poll(netdev);
-
- hunt->efx.state &= ~EFX_STATE_POLLING;
- }
-
- /*******************************************************************************
- *
- *
- * Netdevice operations
- *
- *
- ******************************************************************************/
- static int hunt_open(struct net_device *netdev)
- {
- struct hunt_nic *hunt = netdev_priv(netdev);
- int rc;
-
- /* Allocate VIs */
- rc = hunt_alloc_vis(hunt);
- if (rc != 0)
- goto fail2;
-
- /* Initialize data path */
- rc = hunt_ev_init(netdev, hunt);
- if (rc != 0)
- goto fail3;
-
- rc = hunt_rx_init(netdev, hunt);
- if (rc != 0)
- goto fail4;
-
- rc = hunt_rx_filter_init(netdev, hunt);
- if (rc != 0)
- goto fail5;
-
- rc = hunt_tx_init(netdev, hunt);
- if (rc != 0)
- goto fail6;
-
- rc = efx_hunt_open(netdev);
- if (rc)
- goto fail7;
-
- rc = hunt_set_mac(hunt);
- if (rc)
- goto fail8;
-
- /* Mark the link as down before checking the link state because the
- * latter might fail.
- */
- netdev_link_down(netdev);
- hunt_check_link(hunt);
-
- DBGC2(hunt, "%s: open ok\n", netdev->name);
- return 0;
-
- fail8:
- efx_hunt_close(netdev);
- fail7:
- hunt_tx_fini(hunt);
- fail6:
- hunt_rx_filter_fini(hunt);
- fail5:
- hunt_rx_fini(hunt);
- fail4:
- hunt_ev_fini(hunt);
- fail3:
- hunt_free_vis(hunt);
- fail2:
- DBGC2(hunt, "%s: %s\n", netdev->name, strerror(rc));
- return rc;
- }
-
-
- static void hunt_close(struct net_device *netdev)
- {
- struct hunt_nic *hunt = netdev_priv(netdev);
-
- /* Stop datapath */
- efx_hunt_close(netdev);
-
- hunt_tx_fini(hunt);
- hunt_rx_fini(hunt);
- hunt_rx_filter_fini(hunt);
- hunt_ev_fini(hunt);
-
- hunt_free_vis(hunt);
-
- /* Reset hardware and detach */
- hunt_reset(hunt);
- }
-
-
- /*******************************************************************************
- *
- *
- * Public operations
- *
- *
- ******************************************************************************/
-
- static struct net_device_operations hunt_operations = {
- .open = hunt_open,
- .close = hunt_close,
- .transmit = efx_hunt_transmit,
- .poll = hunt_poll,
- .irq = efx_hunt_irq,
- };
-
- static int
- hunt_probe(struct pci_device *pci)
- {
- struct net_device *netdev;
- struct hunt_nic *hunt;
- struct efx_nic *efx;
- int rc = 0;
-
- /* Create the network adapter */
- netdev = alloc_etherdev(sizeof(struct hunt_nic));
- if (!netdev) {
- rc = -ENOMEM;
- goto fail1;
- }
-
- /* Initialise the network adapter, and initialise private storage */
- netdev_init(netdev, &hunt_operations);
- pci_set_drvdata(pci, netdev);
- netdev->dev = &pci->dev;
- netdev->state |= NETDEV_IRQ_UNSUPPORTED;
-
- hunt = netdev_priv(netdev);
- memset(hunt, 0, sizeof(*hunt));
- efx = &hunt->efx;
-
- efx->type = &hunt_nic_type;
-
- /* Initialise efx datapath */
- efx_probe(netdev, EFX_HUNTINGTON);
-
- /* Initialise MCDI. In case we are recovering from a crash, first
- * cancel any outstanding request by sending a special message using the
- * least significant bits of the 'high' (doorbell) register.
- */
- _efx_writel(efx, cpu_to_le32(1), ER_DZ_MC_DB_HWRD);
- rc = hunt_mcdi_init(hunt);
- if (rc != 0)
- goto fail2;
-
- /* Reset (most) configuration for this function */
- rc = hunt_reset(hunt);
- if (rc != 0)
- goto fail3;
-
- /* Medford has a list of UDP tunnel ports that is populated by the
- * driver. Avoid dropping any unencapsulated packets. This may cause
- * an MC reboot.
- */
- hunt_clear_udp_tunnel_ports(hunt);
-
- /* Enable the workaround for bug35388, if supported */
- efx->workaround_35388 = hunt_workaround_35388(hunt);
-
- /* Set the RX packet prefix size */
- efx->rx_prefix_size = ES_DZ_RX_PREFIX_SIZE;
-
- rc = hunt_get_port_assignment(hunt);
- if (rc != 0)
- goto fail3;
-
- rc = hunt_mac_addr(hunt, netdev->ll_addr);
- if (rc != 0)
- goto fail4;
-
- rc = hunt_get_phy_cfg(hunt);
- if (rc != 0)
- goto fail5;
-
- rc = hunt_driver_attach(hunt, 1);
- if (rc != 0)
- goto fail5;
-
- /* If not exposing this network device, return successfully here */
- if (hunt->flags & (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_NO_ACTIVE_PORT))
- return 0;
-
- if (hunt_nic_is_primary(hunt)) {
- hunt->next_primary = primary_nics;
- primary_nics = hunt;
- hunt->primary = hunt;
- } else {
- struct hunt_nic *other_hunt = primary_nics;
-
- while (other_hunt && !hunt->primary) {
- struct pci_device *other_pci = (struct pci_device *)
- other_hunt->efx.netdev->dev;
- /* Check if the seg:bus:dev parts match. */
- if (PCI_FIRST_FUNC(other_pci->busdevfn) ==
- PCI_FIRST_FUNC(pci->busdevfn))
- hunt->primary = other_hunt;
-
- other_hunt = other_hunt->next_primary;
- }
- if (!hunt->primary) {
- rc = -EIO;
- goto fail6;
- }
- }
-
- rc = register_netdev(netdev);
- if (rc != 0)
- goto fail8;
-
- DBG2("%s " PCI_FMT " ok\n", __func__, PCI_ARGS(pci));
- return 0;
-
- fail8:
- fail6:
- (void) hunt_driver_attach(hunt, 0);
- fail5:
- fail4:
- fail3:
- hunt_mcdi_fini(hunt);
- fail2:
- efx_remove(netdev);
- netdev_put(netdev);
- fail1:
- DBG2("%s " PCI_FMT " rc=%d\n", __func__, PCI_ARGS(pci), rc);
- return rc;
- }
-
- static void hunt_remove(struct pci_device *pci)
- {
- struct net_device *netdev = pci_get_drvdata(pci);
- struct hunt_nic *hunt = netdev_priv(netdev);
-
- if (!(hunt->flags &
- (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_NO_ACTIVE_PORT))) {
- /* The netdevice might still be open, so unregister it now
- * before ripping stuff out from underneath.
- */
- unregister_netdev(netdev);
- }
-
- (void)hunt_driver_attach(hunt, 0);
- hunt_mcdi_fini(hunt);
-
- /* Destroy data path */
- efx_remove(netdev);
-
- netdev_nullify(netdev);
- netdev_put(netdev);
- }
-
- const struct efx_nic_type hunt_nic_type = {
- .mcdi_rpc = _hunt_mcdi,
- };
-
- static struct pci_device_id hunt_nics[] = {
- PCI_ROM(0x1924, 0x0a03, "SFC9220", "Solarflare SFN8xxx Adapter", 0),
- };
-
- struct pci_driver hunt_driver __pci_driver = {
- .ids = hunt_nics,
- .id_count = ARRAY_SIZE(hunt_nics),
- .probe = hunt_probe,
- .remove = hunt_remove,
- };
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