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Commit 66c93da5 authored by Yue Ma's avatar Yue Ma Committed by Gerrit - the friendly Code Review server
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cnss2: Add meta into as a segment to firmware RAM dump 



Since driver is saving multiple firmware RAM dump types into one file,
add a new segment which contains meta info of the dump so that it will
be easy to be parsed by tools.

Change-Id: I42c13d8576eece7824192aefacd58a5ad994662b
Signed-off-by: default avatarYue Ma <yuem@codeaurora.org>
parent 82e0a0f5

drivers/net/wireless/cnss2/main.h

+17 −0
Original line number Diff line number Diff line
@@ -23,6 +23,8 @@ 
#define RECOVERY_TIMEOUT		60000

#define WLAN_WD_TIMEOUT_MS		60000

#define TIME_CLOCK_FREQ_HZ		19200000

#define CNSS_RAMDUMP_MAGIC		0x574C414E

#define CNSS_RAMDUMP_VERSION		0



#define CNSS_EVENT_SYNC   BIT(0)

#define CNSS_EVENT_UNINTERRUPTIBLE BIT(1)
@@ -167,6 +169,21 @@ enum cnss_fw_dump_type { 
	CNSS_FW_IMAGE,

	CNSS_FW_RDDM,

	CNSS_FW_REMOTE_HEAP,

	CNSS_FW_DUMP_TYPE_MAX,

};



struct cnss_dump_entry {

	u32 type;

	u32 entry_start;

	u32 entry_num;

};



struct cnss_dump_meta_info {

	u32 magic;

	u32 version;

	u32 chipset;

	u32 total_entries;

	struct cnss_dump_entry entry[CNSS_FW_DUMP_TYPE_MAX];

};



enum cnss_driver_event_type {

drivers/net/wireless/cnss2/pci.c

+24 −3
Original line number Diff line number Diff line
@@ -1870,20 +1870,33 @@ static int cnss_qca6290_ramdump(struct cnss_pci_data *pci_priv) 
	struct cnss_dump_data *dump_data = &info_v2->dump_data;

	struct cnss_dump_seg *dump_seg = info_v2->dump_data_vaddr;

	struct ramdump_segment *ramdump_segs, *s;

	struct cnss_dump_meta_info meta_info = {0};

	int i, ret = 0;



	if (!info_v2->dump_data_valid ||

	    dump_data->nentries == 0)

		return 0;



	ramdump_segs = kcalloc(dump_data->nentries,

	ramdump_segs = kcalloc(dump_data->nentries + 1,

			       sizeof(*ramdump_segs),

			       GFP_KERNEL);

	if (!ramdump_segs)

		return -ENOMEM;



	s = ramdump_segs;

	s = ramdump_segs + 1;

	for (i = 0; i < dump_data->nentries; i++) {

		if (dump_seg->type >= CNSS_FW_DUMP_TYPE_MAX) {

			cnss_pr_err("Unsupported dump type: %d",

				    dump_seg->type);

			continue;

		}



		if (meta_info.entry[dump_seg->type].entry_start == 0) {

			meta_info.entry[dump_seg->type].type = dump_seg->type;

			meta_info.entry[dump_seg->type].entry_start = i + 1;

		}

		meta_info.entry[dump_seg->type].entry_num++;



		s->address = dump_seg->address;

		s->v_address = dump_seg->v_address;

		s->size = dump_seg->size;
@@ -1891,8 +1904,16 @@ static int cnss_qca6290_ramdump(struct cnss_pci_data *pci_priv) 
		dump_seg++;

	}



	meta_info.magic = CNSS_RAMDUMP_MAGIC;

	meta_info.version = CNSS_RAMDUMP_VERSION;

	meta_info.chipset = pci_priv->device_id;

	meta_info.total_entries = CNSS_FW_DUMP_TYPE_MAX;



	ramdump_segs->v_address = &meta_info;

	ramdump_segs->size = sizeof(meta_info);



	ret = do_elf_ramdump(info_v2->ramdump_dev, ramdump_segs,

			     dump_data->nentries);

			     dump_data->nentries + 1);

	kfree(ramdump_segs);



	cnss_pci_clear_dump_info(pci_priv);