diff options
| author | Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> | 2018-05-02 12:47:19 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-05-14 20:46:05 +0300 |
| commit | 1dde532dd0520a948fbc82f4522183104ee4808b (patch) | |
| tree | 33c326162fdade738286b7b48520db15649867e9 /drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c | |
| parent | 7efe48df8a3df6d089d2e9a1d429c82cc5dcf2de (diff) | |
| download | linux-1dde532dd0520a948fbc82f4522183104ee4808b.tar.xz | |
cxgb4: collect hardware dump in second kernel
Register callback to collect hardware/firmware dumps in second kernel
before hardware/firmware is initialized. The dumps for each device
will be available as elf notes in /proc/vmcore in second kernel.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c index 143686c60234..085691eb2b95 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c @@ -488,3 +488,28 @@ void cxgb4_init_ethtool_dump(struct adapter *adapter) adapter->eth_dump.version = adapter->params.fw_vers; adapter->eth_dump.len = 0; } + +static int cxgb4_cudbg_vmcoredd_collect(struct vmcoredd_data *data, void *buf) +{ + struct adapter *adap = container_of(data, struct adapter, vmcoredd); + u32 len = data->size; + + return cxgb4_cudbg_collect(adap, buf, &len, CXGB4_ETH_DUMP_ALL); +} + +int cxgb4_cudbg_vmcore_add_dump(struct adapter *adap) +{ + struct vmcoredd_data *data = &adap->vmcoredd; + u32 len; + + len = sizeof(struct cudbg_hdr) + + sizeof(struct cudbg_entity_hdr) * CUDBG_MAX_ENTITY; + len += CUDBG_DUMP_BUFF_SIZE; + + data->size = len; + snprintf(data->dump_name, sizeof(data->dump_name), "%s_%s", + cxgb4_driver_name, adap->name); + data->vmcoredd_callback = cxgb4_cudbg_vmcoredd_collect; + + return vmcore_add_device_dump(data); +} |