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octeon_ep: implement device unload control net API

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Device unload control net function should inform firmware
of driver unload to let it take necessary actions to cleanup.

Signed-off-by: Shinas Rasheed <srasheed@marvell.com>
Link: https://lore.kernel.org/r/20231129045348.2538843-2-srasheed@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Shinas Rasheed
2023-11-28 20:53:47 -08:00
committed by Jakub Kicinski
parent 000db9e9ad
commit b77e23f1b0
2 changed files with 26 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
View File

@@ -26,7 +26,7 @@ static atomic_t ctrl_net_msg_id;
/* Control plane version in which OCTEP_CTRL_NET_H2F_CMD was added */
static const u32 octep_ctrl_net_h2f_cmd_versions[OCTEP_CTRL_NET_H2F_CMD_MAX] = {
[OCTEP_CTRL_NET_H2F_CMD_INVALID ... OCTEP_CTRL_NET_H2F_CMD_GET_INFO] =
[OCTEP_CTRL_NET_H2F_CMD_INVALID ... OCTEP_CTRL_NET_H2F_CMD_DEV_REMOVE] =
OCTEP_CP_VERSION(1, 0, 0)
};
@@ -393,10 +393,24 @@ int octep_ctrl_net_get_info(struct octep_device *oct, int vfid,
return 0;
}
int octep_ctrl_net_dev_remove(struct octep_device *oct, int vfid)
{
struct octep_ctrl_net_wait_data d = {};
struct octep_ctrl_net_h2f_req *req;
req = &d.data.req;
dev_dbg(&oct->pdev->dev, "Sending dev_unload msg to fw\n");
init_send_req(&d.msg, req, sizeof(int), vfid);
req->hdr.s.cmd = OCTEP_CTRL_NET_H2F_CMD_DEV_REMOVE;
return octep_send_mbox_req(oct, &d, false);
}
int octep_ctrl_net_uninit(struct octep_device *oct)
{
struct octep_ctrl_net_wait_data *pos, *n;
octep_ctrl_net_dev_remove(oct, OCTEP_CTRL_NET_INVALID_VFID);
list_for_each_entry_safe(pos, n, &oct->ctrl_req_wait_list, list)
pos->done = 1;

11
drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h
View File

@@ -42,6 +42,7 @@ enum octep_ctrl_net_h2f_cmd {
OCTEP_CTRL_NET_H2F_CMD_RX_STATE,
OCTEP_CTRL_NET_H2F_CMD_LINK_INFO,
OCTEP_CTRL_NET_H2F_CMD_GET_INFO,
OCTEP_CTRL_NET_H2F_CMD_DEV_REMOVE,
OCTEP_CTRL_NET_H2F_CMD_MAX
};
@@ -370,6 +371,16 @@ void octep_ctrl_net_recv_fw_messages(struct octep_device *oct);
int octep_ctrl_net_get_info(struct octep_device *oct, int vfid,
struct octep_fw_info *info);
/**
* octep_ctrl_net_dev_remove() - Indicate to firmware that a device unload has happened.
*
* @oct: non-null pointer to struct octep_device.
* @vfid: Index of virtual function.
*
* return value: 0 on success, -errno on failure.
*/
int octep_ctrl_net_dev_remove(struct octep_device *oct, int vfid);
/**
* octep_ctrl_net_uninit() - Uninitialize data for ctrl net.
*