[PATCH net-next v1 1/2] octeon_ep: implement device unload control net API
From: Shinas Rasheed <srasheed@marvell.com>
Date: 2023-11-27 16:22:18
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Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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> --- .../ethernet/marvell/octeon_ep/octep_ctrl_net.c | 16 +++++++++++++++- .../ethernet/marvell/octeon_ep/octep_ctrl_net.h | 11 +++++++++++ 2 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
index 5fa596c674da..f0fdfda8894a 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c@@ -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_info(&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;
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h
index a2463b460ad9..0de4de2ceb8f 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h@@ -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. *
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2.25.1