diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c | 430 |
1 files changed, 0 insertions, 430 deletions
diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c deleted file mode 100644 index 594bee15bd36..000000000000 --- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c +++ /dev/null @@ -1,430 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Marvell Octeon EP (EndPoint) VF Ethernet Driver - * - * Copyright (C) 2020 Marvell. - * - */ -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include "octep_vf_config.h" -#include "octep_vf_main.h" - -/* When a new command is implemented, the below table should be updated - * with new command and it's version info. - */ -static u32 pfvf_cmd_versions[OCTEP_PFVF_MBOX_CMD_MAX] = { - [0 ... OCTEP_PFVF_MBOX_CMD_DEV_REMOVE] = OCTEP_PFVF_MBOX_VERSION_V1, - [OCTEP_PFVF_MBOX_CMD_GET_FW_INFO ... OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS] = - OCTEP_PFVF_MBOX_VERSION_V2 -}; - -int octep_vf_setup_mbox(struct octep_vf_device *oct) -{ - int ring = 0; - - oct->mbox = vzalloc(sizeof(*oct->mbox)); - if (!oct->mbox) - return -1; - - mutex_init(&oct->mbox->lock); - - oct->hw_ops.setup_mbox_regs(oct, ring); - INIT_WORK(&oct->mbox->wk.work, octep_vf_mbox_work); - oct->mbox->wk.ctxptr = oct; - oct->mbox_neg_ver = OCTEP_PFVF_MBOX_VERSION_CURRENT; - dev_info(&oct->pdev->dev, "setup vf mbox successfully\n"); - return 0; -} - -void octep_vf_delete_mbox(struct octep_vf_device *oct) -{ - if (oct->mbox) { - if (work_pending(&oct->mbox->wk.work)) - cancel_work_sync(&oct->mbox->wk.work); - - mutex_destroy(&oct->mbox->lock); - vfree(oct->mbox); - oct->mbox = NULL; - dev_info(&oct->pdev->dev, "Deleted vf mbox successfully\n"); - } -} - -int octep_vf_mbox_version_check(struct octep_vf_device *oct) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int ret; - - cmd.u64 = 0; - cmd.s_version.opcode = OCTEP_PFVF_MBOX_CMD_VERSION; - cmd.s_version.version = OCTEP_PFVF_MBOX_VERSION_CURRENT; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret == OCTEP_PFVF_MBOX_CMD_STATUS_NACK) { - dev_err(&oct->pdev->dev, - "VF Mbox version is incompatible with PF\n"); - return -EINVAL; - } - oct->mbox_neg_ver = (u32)rsp.s_version.version; - dev_dbg(&oct->pdev->dev, - "VF Mbox version:%u Negotiated VF version with PF:%u\n", - (u32)cmd.s_version.version, - (u32)rsp.s_version.version); - return 0; -} - -void octep_vf_mbox_work(struct work_struct *work) -{ - struct octep_vf_mbox_wk *wk = container_of(work, struct octep_vf_mbox_wk, work); - struct octep_vf_iface_link_info *link_info; - struct octep_vf_device *oct = NULL; - struct octep_vf_mbox *mbox = NULL; - union octep_pfvf_mbox_word *notif; - u64 pf_vf_data; - - oct = (struct octep_vf_device *)wk->ctxptr; - link_info = &oct->link_info; - mbox = oct->mbox; - pf_vf_data = readq(mbox->mbox_read_reg); - - notif = (union octep_pfvf_mbox_word *)&pf_vf_data; - - switch (notif->s.opcode) { - case OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS: - if (notif->s_link_status.status) { - link_info->oper_up = OCTEP_PFVF_LINK_STATUS_UP; - netif_carrier_on(oct->netdev); - dev_info(&oct->pdev->dev, "netif_carrier_on\n"); - } else { - link_info->oper_up = OCTEP_PFVF_LINK_STATUS_DOWN; - netif_carrier_off(oct->netdev); - dev_info(&oct->pdev->dev, "netif_carrier_off\n"); - } - break; - default: - dev_err(&oct->pdev->dev, - "Received unsupported notif %d\n", notif->s.opcode); - break; - } -} - -static int __octep_vf_mbox_send_cmd(struct octep_vf_device *oct, - union octep_pfvf_mbox_word cmd, - union octep_pfvf_mbox_word *rsp) -{ - struct octep_vf_mbox *mbox = oct->mbox; - u64 reg_val = 0ull; - int count = 0; - - if (!mbox) - return OCTEP_PFVF_MBOX_CMD_STATUS_NOT_SETUP; - - cmd.s.type = OCTEP_PFVF_MBOX_TYPE_CMD; - writeq(cmd.u64, mbox->mbox_write_reg); - - /* No response for notification messages */ - if (!rsp) - return 0; - - for (count = 0; count < OCTEP_PFVF_MBOX_TIMEOUT_WAIT_COUNT; count++) { - usleep_range(1000, 1500); - reg_val = readq(mbox->mbox_write_reg); - if (reg_val != cmd.u64) { - rsp->u64 = reg_val; - break; - } - } - if (count == OCTEP_PFVF_MBOX_TIMEOUT_WAIT_COUNT) { - dev_err(&oct->pdev->dev, "mbox send command timed out\n"); - return OCTEP_PFVF_MBOX_CMD_STATUS_TIMEDOUT; - } - if (rsp->s.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "mbox_send: Received NACK\n"); - return OCTEP_PFVF_MBOX_CMD_STATUS_NACK; - } - rsp->u64 = reg_val; - return 0; -} - -int octep_vf_mbox_send_cmd(struct octep_vf_device *oct, union octep_pfvf_mbox_word cmd, - union octep_pfvf_mbox_word *rsp) -{ - struct octep_vf_mbox *mbox = oct->mbox; - int ret; - - if (!mbox) - return OCTEP_PFVF_MBOX_CMD_STATUS_NOT_SETUP; - mutex_lock(&mbox->lock); - if (pfvf_cmd_versions[cmd.s.opcode] > oct->mbox_neg_ver) { - dev_dbg(&oct->pdev->dev, "CMD:%d not supported in Version:%d\n", - cmd.s.opcode, oct->mbox_neg_ver); - mutex_unlock(&mbox->lock); - return -EOPNOTSUPP; - } - ret = __octep_vf_mbox_send_cmd(oct, cmd, rsp); - mutex_unlock(&mbox->lock); - return ret; -} - -int octep_vf_mbox_bulk_read(struct octep_vf_device *oct, enum octep_pfvf_mbox_opcode opcode, - u8 *data, int *size) -{ - struct octep_vf_mbox *mbox = oct->mbox; - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int data_len = 0, tmp_len = 0; - int read_cnt, i = 0, ret; - - if (!mbox) - return OCTEP_PFVF_MBOX_CMD_STATUS_NOT_SETUP; - - mutex_lock(&mbox->lock); - cmd.u64 = 0; - cmd.s_data.opcode = opcode; - cmd.s_data.frag = 0; - /* Send cmd to read data from PF */ - ret = __octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "send mbox cmd fail for data request\n"); - mutex_unlock(&mbox->lock); - return ret; - } - /* PF sends the data length of requested CMD - * in ACK - */ - data_len = *((int32_t *)rsp.s_data.data); - tmp_len = data_len; - cmd.u64 = 0; - rsp.u64 = 0; - cmd.s_data.opcode = opcode; - cmd.s_data.frag = 1; - while (data_len) { - ret = __octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "send mbox cmd fail for data request\n"); - mutex_unlock(&mbox->lock); - mbox->mbox_data.data_index = 0; - memset(mbox->mbox_data.recv_data, 0, OCTEP_PFVF_MBOX_MAX_DATA_BUF_SIZE); - return ret; - } - if (data_len > OCTEP_PFVF_MBOX_MAX_DATA_SIZE) { - data_len -= OCTEP_PFVF_MBOX_MAX_DATA_SIZE; - read_cnt = OCTEP_PFVF_MBOX_MAX_DATA_SIZE; - } else { - read_cnt = data_len; - data_len = 0; - } - for (i = 0; i < read_cnt; i++) { - mbox->mbox_data.recv_data[mbox->mbox_data.data_index] = - rsp.s_data.data[i]; - mbox->mbox_data.data_index++; - } - cmd.u64 = 0; - rsp.u64 = 0; - cmd.s_data.opcode = opcode; - cmd.s_data.frag = 1; - } - memcpy(data, mbox->mbox_data.recv_data, tmp_len); - *size = tmp_len; - mbox->mbox_data.data_index = 0; - memset(mbox->mbox_data.recv_data, 0, OCTEP_PFVF_MBOX_MAX_DATA_BUF_SIZE); - mutex_unlock(&mbox->lock); - return 0; -} - -int octep_vf_mbox_set_mtu(struct octep_vf_device *oct, int mtu) -{ - int frame_size = mtu + ETH_HLEN + ETH_FCS_LEN; - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int ret = 0; - - if (mtu < ETH_MIN_MTU || frame_size > ETH_MAX_MTU) { - dev_err(&oct->pdev->dev, - "Failed to set MTU to %d MIN MTU:%d MAX MTU:%d\n", - mtu, ETH_MIN_MTU, ETH_MAX_MTU); - return -EINVAL; - } - - cmd.u64 = 0; - cmd.s_set_mtu.opcode = OCTEP_PFVF_MBOX_CMD_SET_MTU; - cmd.s_set_mtu.mtu = mtu; - - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "Mbox send failed; err=%d\n", ret); - return ret; - } - if (rsp.s_set_mtu.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "Received Mbox NACK from PF for MTU:%d\n", mtu); - return -EINVAL; - } - - return 0; -} - -int octep_vf_mbox_set_mac_addr(struct octep_vf_device *oct, char *mac_addr) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int i, ret; - - cmd.u64 = 0; - cmd.s_set_mac.opcode = OCTEP_PFVF_MBOX_CMD_SET_MAC_ADDR; - for (i = 0; i < ETH_ALEN; i++) - cmd.s_set_mac.mac_addr[i] = mac_addr[i]; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "Mbox send failed; err = %d\n", ret); - return ret; - } - if (rsp.s_set_mac.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "received NACK\n"); - return -EINVAL; - } - return 0; -} - -int octep_vf_mbox_get_mac_addr(struct octep_vf_device *oct, char *mac_addr) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int i, ret; - - cmd.u64 = 0; - cmd.s_set_mac.opcode = OCTEP_PFVF_MBOX_CMD_GET_MAC_ADDR; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "get_mac: mbox send failed; err = %d\n", ret); - return ret; - } - if (rsp.s_set_mac.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "get_mac: received NACK\n"); - return -EINVAL; - } - for (i = 0; i < ETH_ALEN; i++) - mac_addr[i] = rsp.s_set_mac.mac_addr[i]; - return 0; -} - -int octep_vf_mbox_set_rx_state(struct octep_vf_device *oct, bool state) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int ret; - - cmd.u64 = 0; - cmd.s_link_state.opcode = OCTEP_PFVF_MBOX_CMD_SET_RX_STATE; - cmd.s_link_state.state = state; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "Set Rx state via VF Mbox send failed\n"); - return ret; - } - if (rsp.s_link_state.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "Set Rx state received NACK\n"); - return -EINVAL; - } - return 0; -} - -int octep_vf_mbox_set_link_status(struct octep_vf_device *oct, bool status) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int ret; - - cmd.u64 = 0; - cmd.s_link_status.opcode = OCTEP_PFVF_MBOX_CMD_SET_LINK_STATUS; - cmd.s_link_status.status = status; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "Set link status via VF Mbox send failed\n"); - return ret; - } - if (rsp.s_link_status.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "Set link status received NACK\n"); - return -EINVAL; - } - return 0; -} - -int octep_vf_mbox_get_link_status(struct octep_vf_device *oct, u8 *oper_up) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int ret; - - cmd.u64 = 0; - cmd.s_link_status.opcode = OCTEP_PFVF_MBOX_CMD_GET_LINK_STATUS; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "Get link status via VF Mbox send failed\n"); - return ret; - } - if (rsp.s_link_status.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "Get link status received NACK\n"); - return -EINVAL; - } - *oper_up = rsp.s_link_status.status; - return 0; -} - -int octep_vf_mbox_dev_remove(struct octep_vf_device *oct) -{ - union octep_pfvf_mbox_word cmd; - int ret; - - cmd.u64 = 0; - cmd.s.opcode = OCTEP_PFVF_MBOX_CMD_DEV_REMOVE; - ret = octep_vf_mbox_send_cmd(oct, cmd, NULL); - return ret; -} - -int octep_vf_mbox_get_fw_info(struct octep_vf_device *oct) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int ret; - - cmd.u64 = 0; - cmd.s_fw_info.opcode = OCTEP_PFVF_MBOX_CMD_GET_FW_INFO; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "Get link status via VF Mbox send failed\n"); - return ret; - } - if (rsp.s_fw_info.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "Get link status received NACK\n"); - return -EINVAL; - } - oct->fw_info.pkind = rsp.s_fw_info.pkind; - oct->fw_info.fsz = rsp.s_fw_info.fsz; - oct->fw_info.rx_ol_flags = rsp.s_fw_info.rx_ol_flags; - oct->fw_info.tx_ol_flags = rsp.s_fw_info.tx_ol_flags; - - return 0; -} - -int octep_vf_mbox_set_offloads(struct octep_vf_device *oct, u16 tx_offloads, - u16 rx_offloads) -{ - union octep_pfvf_mbox_word cmd; - union octep_pfvf_mbox_word rsp; - int ret; - - cmd.u64 = 0; - cmd.s_offloads.opcode = OCTEP_PFVF_MBOX_CMD_SET_OFFLOADS; - cmd.s_offloads.rx_ol_flags = rx_offloads; - cmd.s_offloads.tx_ol_flags = tx_offloads; - ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp); - if (ret) { - dev_err(&oct->pdev->dev, "Set offloads via VF Mbox send failed\n"); - return ret; - } - if (rsp.s_link_state.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) { - dev_err(&oct->pdev->dev, "Set offloads received NACK\n"); - return -EINVAL; - } - return 0; -} |