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| author | hanahuang <hanahuang@google.com> | 2023-06-19 07:36:56 +0000 |
|---|---|---|
| committer | hanahuang <hanahuang@google.com> | 2023-06-19 08:44:32 +0000 |
| commit | f9092f8183a5a2ef14ef135c24e5a612d57c8196 (patch) | |
| tree | 31d1fab91c4762f5fee5c335dc032aa3ecb05319 | |
| parent | 4bb757afacc81de1645e009485fcd65e154c5950 (diff) | |
| download | bcm4398-f9092f8183a5a2ef14ef135c24e5a612d57c8196.tar.gz | |
[WAR] Add SW recovery in IOVAR timeout path to avoid KP
Bug: 277732484
Test: Manual.
Change-Id: Id3947f9db4780c5a1e294887efa30029d8b6617a
| -rw-r--r-- | dhd_msgbuf.c | 12 | ||||
| -rw-r--r-- | dhd_pcie.c | 2 | ||||
| -rw-r--r-- | dhd_pcie.h | 1 |
3 files changed, 15 insertions, 0 deletions
diff --git a/dhd_msgbuf.c b/dhd_msgbuf.c index df20584..9f063da 100644 --- a/dhd_msgbuf.c +++ b/dhd_msgbuf.c @@ -1282,6 +1282,7 @@ static void dhd_prot_h2d_sync_init(dhd_pub_t *dhd); void dhd_fill_cso_info(dhd_pub_t *dhd, void *pktbuf, void *txdesc, uint32 item_len); #endif +extern void exynos_pcie_d3_ack_timeout_set(bool val); uint dhd_get_ring_size_from_version_array(uint cursize, uint* size_array, int version) @@ -11708,6 +11709,17 @@ dhd_msgbuf_wait_ioctl_cmplt(dhd_pub_t *dhd, uint32 len, void *buf) } #endif /* DHD_RECOVER_TIMEOUT */ +#ifdef DHD_TREAT_D3ACKTO_AS_LINKDWN + if ((prot->ioctl_received == 0) && (timeleft == 0)) { + DHD_ERROR(("%s: Treating IOVAR timeout as PCIe linkdown !\n", __FUNCTION__)); + exynos_pcie_d3_ack_timeout_set(1); + dhd->bus->is_linkdown = 1; + dhd->bus->iovarto_as_linkdwn_cnt++; + dhd->hang_reason = HANG_REASON_PCIE_LINK_DOWN_RC_DETECT; + dhd_os_send_hang_message(dhd); + } +#endif /* DHD_TREAT_D3ACKTO_AS_LINKDWN */ + if (timeleft == 0 && (!dhd->dongle_trap_data) && (!dhd_query_bus_erros(dhd))) { /* Dump iovar name */ dhd_msgbuf_dump_iovar_name(dhd); @@ -7820,6 +7820,7 @@ dhd_bus_clearcounts(dhd_pub_t *dhdp) #ifdef DHD_TREAT_D3ACKTO_AS_LINKDWN bus->d3ackto_as_linkdwn_cnt = 0; + bus->iovarto_as_linkdwn_cnt = 0; #endif dhdp->rx_pktgetpool_fail = 0; @@ -13775,6 +13776,7 @@ void dhd_bus_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf) } #ifdef DHD_TREAT_D3ACKTO_AS_LINKDWN bcm_bprintf(strbuf, "d3ackto_as_linkdwn_cnt: %d\n", dhdp->bus->d3ackto_as_linkdwn_cnt); + bcm_bprintf(strbuf, "iovarto_as_linkdwn_cnt: %d\n", dhdp->bus->iovarto_as_linkdwn_cnt); #endif #ifdef PCIE_INB_DW @@ -471,6 +471,7 @@ typedef struct dhd_bus { uint32 d0_inform_in_use_cnt; #ifdef DHD_TREAT_D3ACKTO_AS_LINKDWN uint32 d3ackto_as_linkdwn_cnt; + uint32 iovarto_as_linkdwn_cnt; #endif uint8 force_suspend; uint8 is_linkdown; |