[PATCH net-next 4/4] bnxt_en: Add async event handling for speed config changes.
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STALE3838d
SUPERSEDED
From: Michael Chan <michael.chan@broadcom.com>
Date: 2016-04-11 08:11:18
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 14 in this series.
Revisions (14)
On some dual port cards, link speeds on both ports have to be compatible. Firmware will inform the driver when a certain speed is no longer supported if the other port has linked up at a certain speed. Add logic to handle this event by logging a message and getting the updated list of supported speeds. Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index c83a5a1..4645c44 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c@@ -122,6 +122,7 @@ static const u16 bnxt_async_events_arr[] = { HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE, HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD, HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED, + HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE, }; static bool bnxt_vf_pciid(enum board_idx idx)
@@ -1257,6 +1258,21 @@ static int bnxt_async_event_process(struct bnxt *bp, /* TODO CHIMP_FW: Define event id's for link change, error etc */ switch (event_id) { + case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: { + u32 data1 = le32_to_cpu(cmpl->event_data1); + struct bnxt_link_info *link_info = &bp->link_info; + + if (BNXT_VF(bp)) + goto async_event_process_exit; + if (data1 & 0x20000) { + u16 fw_speed = link_info->force_link_speed; + u32 speed = bnxt_fw_to_ethtool_speed(fw_speed); + + netdev_warn(bp->dev, "Link speed %d no longer supported\n", + speed); + } + /* fall thru */ + } case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE: set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event); break;
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1.8.3.1