Commit a7482259 authored Jul 24, 2020 by Bhaumik Bhatt Committed by Yue Ma Aug 19, 2020

cnss2: print message for abrupt device reset to PBL



At times, the device can abruptly reset due to power rail or
other related issues which can manifest as a linkdown on the
host. As linkdown recovery mechanism is put in place, it would
be helpful to understand why a set of ramdumps was not collected
in these abrupt reset cases. Hence, it is wise to add a print
message to check whether the device has reset to PBL and make
the users aware.

Change-Id: I545a5b87461b05ea436e383fddd2a8d037a8389d
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>

parent 146ff543

drivers/net/wireless/cnss2/pci.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -4240,12 +4240,18 @@ static void cnss_dev_rddm_timeout_hdlr(struct timer_list *t)
		{
		struct cnss_pci_data *pci_priv =
		from_timer(pci_priv, t, dev_rddm_timer);
		struct mhi_controller *mhi_ctrl = pci_priv->mhi_ctrl;

		if (!pci_priv)
		return;

		cnss_fatal_err("Timeout waiting for RDDM notification\n");

		if (mhi_get_exec_env(mhi_ctrl) == MHI_EE_PBL)
		cnss_pr_err("Unable to collect ramdumps due to abrupt reset\n");

		mhi_debug_reg_dump(mhi_ctrl);

		cnss_schedule_recovery(&pci_priv->pci_dev->dev, CNSS_REASON_TIMEOUT);
		}