diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/debug.c | 66 |
1 files changed, 61 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c index 82a4c67f3672..d5ff0f4ef5ce 100644 --- a/drivers/net/wireless/ath/ath10k/debug.c +++ b/drivers/net/wireless/ath/ath10k/debug.c @@ -21,6 +21,7 @@ #include <linux/utsname.h> #include <linux/crc32.h> #include <linux/firmware.h> +#include <linux/devcoredump.h> #include "core.h" #include "debug.h" @@ -40,6 +41,7 @@ */ enum ath10k_fw_crash_dump_type { ATH10K_FW_CRASH_DUMP_REGISTERS = 0, + ATH10K_FW_CRASH_DUMP_CE_DATA = 1, ATH10K_FW_CRASH_DUMP_MAX, }; @@ -399,6 +401,7 @@ void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb) * prevent firmware from DoS-ing the host. */ ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers); + ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd); ath10k_warn(ar, "dropping fw peer stats\n"); goto free; } @@ -409,10 +412,12 @@ void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb) goto free; } + if (!list_empty(&stats.peers)) + list_splice_tail_init(&stats.peers_extd, + &ar->debug.fw_stats.peers_extd); + list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers); list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs); - list_splice_tail_init(&stats.peers_extd, - &ar->debug.fw_stats.peers_extd); } complete(&ar->debug.fw_stats_complete); @@ -721,9 +726,11 @@ ath10k_debug_get_new_fw_crash_data(struct ath10k *ar) } EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data); -static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar) +static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar, + bool mark_read) { struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data; + struct ath10k_ce_crash_hdr *ce_hdr; struct ath10k_dump_file_data *dump_data; struct ath10k_tlv_dump_data *dump_tlv; int hdr_len = sizeof(*dump_data); @@ -732,6 +739,8 @@ static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar) len = hdr_len; len += sizeof(*dump_tlv) + sizeof(crash_data->registers); + len += sizeof(*dump_tlv) + sizeof(*ce_hdr) + + CE_COUNT * sizeof(ce_hdr->entries[0]); sofar += hdr_len; @@ -790,19 +799,66 @@ static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar) sizeof(crash_data->registers)); sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers); - ar->debug.fw_crash_data->crashed_since_read = false; + dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar); + dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_CE_DATA); + dump_tlv->tlv_len = cpu_to_le32(sizeof(*ce_hdr) + + CE_COUNT * sizeof(ce_hdr->entries[0])); + ce_hdr = (struct ath10k_ce_crash_hdr *)(dump_tlv->tlv_data); + ce_hdr->ce_count = cpu_to_le32(CE_COUNT); + memset(ce_hdr->reserved, 0, sizeof(ce_hdr->reserved)); + memcpy(ce_hdr->entries, crash_data->ce_crash_data, + CE_COUNT * sizeof(ce_hdr->entries[0])); + sofar += sizeof(*dump_tlv) + sizeof(*ce_hdr) + + CE_COUNT * sizeof(ce_hdr->entries[0]); + + ar->debug.fw_crash_data->crashed_since_read = !mark_read; spin_unlock_bh(&ar->data_lock); return dump_data; } +int ath10k_debug_fw_devcoredump(struct ath10k *ar) +{ + struct ath10k_dump_file_data *dump; + void *dump_ptr; + u32 dump_len; + + /* To keep the dump file available also for debugfs don't mark the + * file read, only debugfs should do that. + */ + dump = ath10k_build_dump_file(ar, false); + if (!dump) { + ath10k_warn(ar, "no crash dump data found for devcoredump"); + return -ENODATA; + } + + /* Make a copy of the dump file for dev_coredumpv() as during the + * transition period we need to own the original file. Once + * fw_crash_dump debugfs file is removed no need to have a copy + * anymore. + */ + dump_len = le32_to_cpu(dump->len); + dump_ptr = vzalloc(dump_len); + + if (!dump_ptr) + return -ENOMEM; + + memcpy(dump_ptr, dump, dump_len); + + dev_coredumpv(ar->dev, dump_ptr, dump_len, GFP_KERNEL); + + return 0; +} + static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file) { struct ath10k *ar = inode->i_private; struct ath10k_dump_file_data *dump; - dump = ath10k_build_dump_file(ar); + ath10k_warn(ar, "fw_crash_dump debugfs file is deprecated, please use /sys/class/devcoredump instead."); + + dump = ath10k_build_dump_file(ar, true); if (!dump) return -ENODATA; |