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net: hns3: using user configure after hardware reset

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When a reset occurring, it's supposed to recover user's configuration.
Currently, the port info(speed, duplex and autoneg) is stored in hclge_mac
and will be scheduled updated. Consider the case that reset was happened
consecutively. During the first reset, the port info is configured with
a temporary value cause the PHY is reset and looking for best link config.
Second reset start and use pervious configuration which is not the user's.
The specific process is as follows:

+------+               +----+                +----+
| USER |               | PF |                | HW |
+---+--+               +-+--+                +-+--+
    |  ethtool --reset   |                     |
    +------------------->|    reset command    |
    |  ethtool --reset   +-------------------->|
    +------------------->|                     +---+
    |                    +---+                 |   |
    |                    |   |reset currently  |   | HW RESET
    |                    |   |and wait to do   |   |
    |                    |<--+                 |   |
    |                    | send pervious cfg   |<--+
    |                    | (1000M FULL AN_ON)  |
    |                    +-------------------->|
    |                    | read cfg(time task) |
    |                    | (10M HALF AN_OFF)   +---+
    |                    |<--------------------+   | cfg take effect
    |                    |    reset command    |<--+
    |                    +-------------------->|
    |                    |                     +---+
    |                    | send pervious cfg   |   | HW RESET
    |                    | (10M HALF AN_OFF)   |<--+
    |                    +-------------------->|
    |                    | read cfg(time task) |
    |                    |  (10M HALF AN_OFF)  +---+
    |                    |<--------------------+   | cfg take effect
    |                    |                     |   |
    |                    | read cfg(time task) |<--+
    |                    |  (10M HALF AN_OFF)  |
    |                    |<--------------------+
    |                    |                     |
    v                    v                     v

To avoid aboved situation, this patch introduced req_speed, req_duplex,
req_autoneg to store user's configuration and it only be used after
hardware reset and to recover user's configuration

Fixes: f5f2b3e4dc ("net: hns3: add support for imp-controlled PHYs")
Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Peiyang Wang 2024-05-07 21:42:18 +08:00 committed by Paolo Abeni
parent 2ddc0dd7fe
commit 05eb60e964
2 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -1537,6 +1537,9 @@ static int hclge_configure(struct hclge_dev *hdev)
cfg.default_speed, ret);
return ret;
}
hdev->hw.mac.req_speed = hdev->hw.mac.speed;
hdev->hw.mac.req_autoneg = AUTONEG_ENABLE;
hdev->hw.mac.req_duplex = DUPLEX_FULL;
hclge_parse_link_mode(hdev, cfg.speed_ability);
@ -3342,9 +3345,9 @@ hclge_set_phy_link_ksettings(struct hnae3_handle *handle,
return ret;
}
hdev->hw.mac.autoneg = cmd->base.autoneg;
hdev->hw.mac.speed = cmd->base.speed;
hdev->hw.mac.duplex = cmd->base.duplex;
hdev->hw.mac.req_autoneg = cmd->base.autoneg;
hdev->hw.mac.req_speed = cmd->base.speed;
hdev->hw.mac.req_duplex = cmd->base.duplex;
linkmode_copy(hdev->hw.mac.advertising, cmd->link_modes.advertising);
return 0;
@ -3377,9 +3380,9 @@ static int hclge_tp_port_init(struct hclge_dev *hdev)
if (!hnae3_dev_phy_imp_supported(hdev))
return 0;
cmd.base.autoneg = hdev->hw.mac.autoneg;
cmd.base.speed = hdev->hw.mac.speed;
cmd.base.duplex = hdev->hw.mac.duplex;
cmd.base.autoneg = hdev->hw.mac.req_autoneg;
cmd.base.speed = hdev->hw.mac.req_speed;
cmd.base.duplex = hdev->hw.mac.req_duplex;
linkmode_copy(cmd.link_modes.advertising, hdev->hw.mac.advertising);
return hclge_set_phy_link_ksettings(&hdev->vport->nic, &cmd);

3
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -279,11 +279,14 @@ struct hclge_mac {
u8 media_type; /* port media type, e.g. fibre/copper/backplane */
u8 mac_addr[ETH_ALEN];
u8 autoneg;
u8 req_autoneg;
u8 duplex;
u8 req_duplex;
u8 support_autoneg;
u8 speed_type; /* 0: sfp speed, 1: active speed */
u8 lane_num;
u32 speed;
u32 req_speed;
u32 max_speed;
u32 speed_ability; /* speed ability supported by current media */
u32 module_type; /* sub media type, e.g. kr/cr/sr/lr */