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| author | Krishna Gudipati <kgudipat@brocade.com> | 2010-05-21 14:39:45 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-05-25 10:05:40 -0500 |
| commit | 7873ca4e4401f0ecd8868bf1543113467e6bae61 (patch) | |
| tree | 48b65eae8642838bde5bb2a7c7b14cfb8669eb3f /drivers/scsi | |
| parent | 8c38a2951026e6b428d3ce6e518d123c35becd18 (diff) | |
| download | linux-7873ca4e4401f0ecd8868bf1543113467e6bae61.tar.gz linux-7873ca4e4401f0ecd8868bf1543113467e6bae61.tar.bz2 linux-7873ca4e4401f0ecd8868bf1543113467e6bae61.zip | |
[SCSI] bfa: fix system crash when reading sysfs fc_host statistics
The port data structure related to fc_host statistics collection is
not initialized. This causes system crash when reading the fc_host
statistics. The fix is to initialize port structure during driver
attach.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/bfa/bfa_core.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c index 0c08e185a766..3a7b3f88932f 100644 --- a/drivers/scsi/bfa/bfa_core.c +++ b/drivers/scsi/bfa/bfa_core.c @@ -84,11 +84,32 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo) for (i = 0; hal_mods[i]; i++) hal_mods[i]->meminfo(cfg, &km_len, &dm_len); + dm_len += bfa_port_meminfo(); meminfo->meminfo[BFA_MEM_TYPE_KVA - 1].mem_len = km_len; meminfo->meminfo[BFA_MEM_TYPE_DMA - 1].mem_len = dm_len; } +static void +bfa_com_port_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi) +{ + struct bfa_port_s *port = &bfa->modules.port; + uint32_t dm_len; + uint8_t *dm_kva; + uint64_t dm_pa; + + dm_len = bfa_port_meminfo(); + dm_kva = bfa_meminfo_dma_virt(mi); + dm_pa = bfa_meminfo_dma_phys(mi); + + memset(port, 0, sizeof(struct bfa_port_s)); + bfa_port_attach(port, &bfa->ioc, bfa, bfa->trcmod, bfa->logm); + bfa_port_mem_claim(port, dm_kva, dm_pa); + + bfa_meminfo_dma_virt(mi) = dm_kva + dm_len; + bfa_meminfo_dma_phys(mi) = dm_pa + dm_len; +} + /** * Use this function to do attach the driver instance with the BFA * library. This function will not trigger any HW initialization @@ -140,6 +161,7 @@ bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, for (i = 0; hal_mods[i]; i++) hal_mods[i]->attach(bfa, bfad, cfg, meminfo, pcidev); + bfa_com_port_attach(bfa, meminfo); } /** |