wil6210: support for platform specific crash recovery
Added a simple interface for platform to perform crash
recovery.
When firmware crashes, wil driver can notify the platform
which can trigger a crash recovery process. During
the process the platform can request a ram dump
from the wil driver as well as control when firmware
recovery will start. This interface allows the platform
to implement a more advanced crash recovery, for
example to reset dependent subsystems in proper order, or
to provide its own notifications during the recovery process.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index 1a3142c3..e36f2a0 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2012-2014 Qualcomm Atheros, Inc.
+ * Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -125,11 +125,37 @@
return 0;
}
+static int wil_platform_rop_ramdump(void *wil_handle, void *buf, uint32_t size)
+{
+ struct wil6210_priv *wil = wil_handle;
+
+ if (!wil)
+ return -EINVAL;
+
+ return wil_fw_copy_crash_dump(wil, buf, size);
+}
+
+static int wil_platform_rop_fw_recovery(void *wil_handle)
+{
+ struct wil6210_priv *wil = wil_handle;
+
+ if (!wil)
+ return -EINVAL;
+
+ wil_fw_error_recovery(wil);
+
+ return 0;
+}
+
static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct wil6210_priv *wil;
struct device *dev = &pdev->dev;
int rc;
+ const struct wil_platform_rops rops = {
+ .ramdump = wil_platform_rop_ramdump,
+ .fw_recovery = wil_platform_rop_fw_recovery,
+ };
/* check HW */
dev_info(&pdev->dev, WIL_NAME
@@ -154,7 +180,7 @@
/* rollback to if_free */
wil->platform_handle =
- wil_platform_init(&pdev->dev, &wil->platform_ops);
+ wil_platform_init(&pdev->dev, &wil->platform_ops, &rops, wil);
if (!wil->platform_handle) {
rc = -ENODEV;
wil_err(wil, "wil_platform_init failed\n");