mirror of
https://github.com/joel16/android_kernel_sony_msm8994.git
synced 2024-11-24 04:30:23 +00:00
[SCSI] mpt2sas: fix config request and diag reset deadlock
Moving the setting and clearing of the mutex's to _config_request. There was a mutex deadlock when diag reset is called from inside _config_request, so diag reset was moved to outside the mutexs. Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Kashyap, Desai
James Bottomley
parent
f9b14c9183
commit
388ce4beb7
@ -236,12 +236,14 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
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Mpi2ConfigRequest_t *config_request;
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int r;
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u8 retry_count;
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u8 issue_reset;
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u8 issue_host_reset = 0;
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u16 wait_state_count;
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mutex_lock(&ioc->config_cmds.mutex);
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if (ioc->config_cmds.status != MPT2_CMD_NOT_USED) {
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printk(MPT2SAS_ERR_FMT "%s: config_cmd in use\n",
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ioc->name, __func__);
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mutex_unlock(&ioc->config_cmds.mutex);
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return -EAGAIN;
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}
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retry_count = 0;
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@ -260,8 +262,8 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
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printk(MPT2SAS_ERR_FMT
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"%s: failed due to ioc not operational\n",
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ioc->name, __func__);
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ioc->config_cmds.status = MPT2_CMD_NOT_USED;
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return -EFAULT;
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r = -EFAULT;
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goto out;
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}
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ssleep(1);
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ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
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@ -277,8 +279,8 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
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if (!smid) {
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printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
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ioc->name, __func__);
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ioc->config_cmds.status = MPT2_CMD_NOT_USED;
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return -EAGAIN;
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r = -EAGAIN;
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goto out;
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}
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r = 0;
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@ -298,9 +300,15 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
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ioc->name, __func__);
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_debug_dump_mf(mpi_request,
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sizeof(Mpi2ConfigRequest_t)/4);
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if (!(ioc->config_cmds.status & MPT2_CMD_RESET))
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issue_reset = 1;
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goto issue_host_reset;
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retry_count++;
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if (ioc->config_cmds.smid == smid)
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mpt2sas_base_free_smid(ioc, smid);
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if ((ioc->shost_recovery) ||
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(ioc->config_cmds.status & MPT2_CMD_RESET))
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goto retry_config;
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issue_host_reset = 1;
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r = -EFAULT;
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goto out;
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}
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if (ioc->config_cmds.status & MPT2_CMD_REPLY_VALID)
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memcpy(mpi_reply, ioc->config_cmds.reply,
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@ -308,21 +316,13 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
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if (retry_count)
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printk(MPT2SAS_INFO_FMT "%s: retry completed!!\n",
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ioc->name, __func__);
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out:
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ioc->config_cmds.status = MPT2_CMD_NOT_USED;
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return r;
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issue_host_reset:
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if (issue_reset)
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mutex_unlock(&ioc->config_cmds.mutex);
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if (issue_host_reset)
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mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
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FORCE_BIG_HAMMER);
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ioc->config_cmds.status = MPT2_CMD_NOT_USED;
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if (!retry_count) {
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printk(MPT2SAS_INFO_FMT "%s: attempting retry\n",
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ioc->name, __func__);
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retry_count++;
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goto retry_config;
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}
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return -EFAULT;
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return r;
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}
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/**
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@ -381,7 +381,6 @@ mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc,
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2ManufacturingPage0_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -423,7 +422,6 @@ mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc,
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -444,7 +442,6 @@ mpt2sas_config_get_bios_pg2(struct MPT2SAS_ADAPTER *ioc,
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2BiosPage2_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -486,7 +483,6 @@ mpt2sas_config_get_bios_pg2(struct MPT2SAS_ADAPTER *ioc,
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -507,7 +503,6 @@ mpt2sas_config_get_bios_pg3(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2BiosPage3_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -549,7 +544,6 @@ mpt2sas_config_get_bios_pg3(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -570,7 +564,6 @@ mpt2sas_config_get_iounit_pg0(struct MPT2SAS_ADAPTER *ioc,
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2IOUnitPage0_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -612,7 +605,6 @@ mpt2sas_config_get_iounit_pg0(struct MPT2SAS_ADAPTER *ioc,
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -633,7 +625,6 @@ mpt2sas_config_get_iounit_pg1(struct MPT2SAS_ADAPTER *ioc,
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2IOUnitPage1_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -675,7 +666,6 @@ mpt2sas_config_get_iounit_pg1(struct MPT2SAS_ADAPTER *ioc,
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -696,7 +686,6 @@ mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc,
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
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@ -738,7 +727,6 @@ mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc,
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -759,7 +747,6 @@ mpt2sas_config_get_ioc_pg8(struct MPT2SAS_ADAPTER *ioc,
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2IOCPage8_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -801,7 +788,6 @@ mpt2sas_config_get_ioc_pg8(struct MPT2SAS_ADAPTER *ioc,
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -824,7 +810,6 @@ mpt2sas_config_get_sas_device_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2SasDevicePage0_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -869,7 +854,6 @@ mpt2sas_config_get_sas_device_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -892,7 +876,6 @@ mpt2sas_config_get_sas_device_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2SasDevicePage1_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -937,7 +920,6 @@ mpt2sas_config_get_sas_device_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -959,7 +941,6 @@ mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys)
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Mpi2ConfigReply_t mpi_reply;
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Mpi2SasIOUnitPage0_t config_page;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
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@ -1008,7 +989,6 @@ mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys)
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1032,8 +1012,6 @@ mpt2sas_config_get_sas_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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Mpi2ConfigRequest_t mpi_request;
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sz);
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1076,7 +1054,6 @@ mpt2sas_config_get_sas_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1101,7 +1078,6 @@ mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sz);
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1144,7 +1120,6 @@ mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1167,7 +1142,6 @@ mpt2sas_config_get_expander_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2ExpanderPage0_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1212,7 +1186,6 @@ mpt2sas_config_get_expander_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1236,7 +1209,6 @@ mpt2sas_config_get_expander_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2ExpanderPage1_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1283,7 +1255,6 @@ mpt2sas_config_get_expander_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1306,7 +1277,6 @@ mpt2sas_config_get_enclosure_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2SasEnclosurePage0_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1351,7 +1321,6 @@ mpt2sas_config_get_enclosure_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1373,7 +1342,6 @@ mpt2sas_config_get_phy_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2SasPhyPage0_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1419,7 +1387,6 @@ mpt2sas_config_get_phy_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1441,7 +1408,6 @@ mpt2sas_config_get_phy_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2SasPhyPage1_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1487,7 +1453,6 @@ mpt2sas_config_get_phy_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1511,7 +1476,6 @@ mpt2sas_config_get_raid_volume_pg1(struct MPT2SAS_ADAPTER *ioc,
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int r;
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struct config_request mem;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(config_page, 0, sizeof(Mpi2RaidVolPage1_t));
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
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@ -1554,7 +1518,6 @@ mpt2sas_config_get_raid_volume_pg1(struct MPT2SAS_ADAPTER *ioc,
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_config_free_config_dma_memory(ioc, &mem);
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out:
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mutex_unlock(&ioc->config_cmds.mutex);
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return r;
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}
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@ -1578,7 +1541,6 @@ mpt2sas_config_get_number_pds(struct MPT2SAS_ADAPTER *ioc, u16 handle,
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struct config_request mem;
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u16 ioc_status;
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mutex_lock(&ioc->config_cmds.mutex);
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memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
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*num_pds = 0;
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mpi_request.Function = MPI2_FUNCTION_CONFIG;
|
||||
@ -1626,7 +1588,6 @@ mpt2sas_config_get_number_pds(struct MPT2SAS_ADAPTER *ioc, u16 handle,
|
||||
_config_free_config_dma_memory(ioc, &mem);
|
||||
|
||||
out:
|
||||
mutex_unlock(&ioc->config_cmds.mutex);
|
||||
return r;
|
||||
}
|
||||
|
||||
@ -1651,7 +1612,6 @@ mpt2sas_config_get_raid_volume_pg0(struct MPT2SAS_ADAPTER *ioc,
|
||||
int r;
|
||||
struct config_request mem;
|
||||
|
||||
mutex_lock(&ioc->config_cmds.mutex);
|
||||
memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
|
||||
memset(config_page, 0, sz);
|
||||
mpi_request.Function = MPI2_FUNCTION_CONFIG;
|
||||
@ -1693,7 +1653,6 @@ mpt2sas_config_get_raid_volume_pg0(struct MPT2SAS_ADAPTER *ioc,
|
||||
_config_free_config_dma_memory(ioc, &mem);
|
||||
|
||||
out:
|
||||
mutex_unlock(&ioc->config_cmds.mutex);
|
||||
return r;
|
||||
}
|
||||
|
||||
@ -1717,7 +1676,6 @@ mpt2sas_config_get_phys_disk_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
|
||||
int r;
|
||||
struct config_request mem;
|
||||
|
||||
mutex_lock(&ioc->config_cmds.mutex);
|
||||
memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
|
||||
memset(config_page, 0, sizeof(Mpi2RaidPhysDiskPage0_t));
|
||||
mpi_request.Function = MPI2_FUNCTION_CONFIG;
|
||||
@ -1760,7 +1718,6 @@ mpt2sas_config_get_phys_disk_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
|
||||
_config_free_config_dma_memory(ioc, &mem);
|
||||
|
||||
out:
|
||||
mutex_unlock(&ioc->config_cmds.mutex);
|
||||
return r;
|
||||
}
|
||||
|
||||
@ -1784,7 +1741,6 @@ mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle,
|
||||
struct config_request mem;
|
||||
u16 ioc_status;
|
||||
|
||||
mutex_lock(&ioc->config_cmds.mutex);
|
||||
*volume_handle = 0;
|
||||
memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
|
||||
mpi_request.Function = MPI2_FUNCTION_CONFIG;
|
||||
@ -1848,7 +1804,6 @@ mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle,
|
||||
_config_free_config_dma_memory(ioc, &mem);
|
||||
|
||||
out:
|
||||
mutex_unlock(&ioc->config_cmds.mutex);
|
||||
return r;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user