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thunderbolt: Add the new USB4 v2 notification types

Browse source 
USB4 v2 spec adds a bunch of new notifications that the connection
manager can use instead of polling. While we do not use these yet we
need to ack the ones routers expect to be acked.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2022-12-23 10:45:51 +02:00
parent e111fb9251
commit 235d019481
3 changed files with 48 additions and 4 deletions
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28
drivers/thunderbolt/ctl.c
View file

@ -409,6 +409,13 @@ static int tb_async_error(const struct ctl_pkg *pkg)
case TB_CFG_ERROR_HEC_ERROR_DETECTED:
case TB_CFG_ERROR_FLOW_CONTROL_ERROR:
case TB_CFG_ERROR_DP_BW:
case TB_CFG_ERROR_ROP_CMPLT:
case TB_CFG_ERROR_POP_CMPLT:
case TB_CFG_ERROR_PCIE_WAKE:
case TB_CFG_ERROR_DP_CON_CHANGE:
case TB_CFG_ERROR_DPTX_DISCOVERY:
case TB_CFG_ERROR_LINK_RECOVERY:
case TB_CFG_ERROR_ASYM_LINK:
return true;
default:
@ -758,6 +765,27 @@ int tb_cfg_ack_notification(struct tb_ctl *ctl, u64 route,
case TB_CFG_ERROR_DP_BW:
name = "DP_BW";
break;
case TB_CFG_ERROR_ROP_CMPLT:
name = "router operation completion";
break;
case TB_CFG_ERROR_POP_CMPLT:
name = "port operation completion";
break;
case TB_CFG_ERROR_PCIE_WAKE:
name = "PCIe wake";
break;
case TB_CFG_ERROR_DP_CON_CHANGE:
name = "DP connector change";
break;
case TB_CFG_ERROR_DPTX_DISCOVERY:
name = "DPTX discovery";
break;
case TB_CFG_ERROR_LINK_RECOVERY:
name = "link recovery";
break;
case TB_CFG_ERROR_ASYM_LINK:
name = "asymmetric link";
break;
default:
name = "unknown";
break;

17
drivers/thunderbolt/tb.c
View file

@ -1952,17 +1952,26 @@ static void tb_queue_dp_bandwidth_request(struct tb *tb, u64 route, u8 port)
static void tb_handle_notification(struct tb *tb, u64 route,
const struct cfg_error_pkg *error)
{
if (tb_cfg_ack_notification(tb->ctl, route, error))
tb_warn(tb, "could not ack notification on %llx\n", route);
switch (error->error) {
case TB_CFG_ERROR_PCIE_WAKE:
case TB_CFG_ERROR_DP_CON_CHANGE:
case TB_CFG_ERROR_DPTX_DISCOVERY:
if (tb_cfg_ack_notification(tb->ctl, route, error))
tb_warn(tb, "could not ack notification on %llx\n",
route);
break;
case TB_CFG_ERROR_DP_BW:
if (tb_cfg_ack_notification(tb->ctl, route, error))
tb_warn(tb, "could not ack notification on %llx\n",
route);
tb_queue_dp_bandwidth_request(tb, route, error->port);
break;
default:
/* Ack is enough */
return;
/* Ignore for now */
break;
}
}

7
drivers/thunderbolt/tb_msgs.h
View file

@ -30,6 +30,13 @@ enum tb_cfg_error {
TB_CFG_ERROR_FLOW_CONTROL_ERROR = 13,
TB_CFG_ERROR_LOCK = 15,
TB_CFG_ERROR_DP_BW = 32,
TB_CFG_ERROR_ROP_CMPLT = 33,
TB_CFG_ERROR_POP_CMPLT = 34,
TB_CFG_ERROR_PCIE_WAKE = 35,
TB_CFG_ERROR_DP_CON_CHANGE = 36,
TB_CFG_ERROR_DPTX_DISCOVERY = 37,
TB_CFG_ERROR_LINK_RECOVERY = 38,
TB_CFG_ERROR_ASYM_LINK = 39,
};
/* common header */