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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[SCSI] mpt2sas: Added expander phy counter support
Added support to retrieve the invalid_dword_count, running_disparity_error_count, loss_of_dword_sync_count, and phy_reset_problem_count for expanders. This will be exported to attributes within the sas transport layer. A new wrapper function was added for sending SMP passthru to retrieve the expander phy error log. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Kashyap, Desai
James Bottomley
parent
dd5fd3323a
commit
d5f491e658
@ -951,11 +951,229 @@ _transport_find_local_phy(struct MPT2SAS_ADAPTER *ioc, struct sas_phy *phy)
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return NULL;
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}
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/* report phy error log structure */
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struct phy_error_log_request{
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u8 smp_frame_type; /* 0x40 */
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u8 function; /* 0x11 */
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u8 allocated_response_length;
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u8 request_length; /* 02 */
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u8 reserved_1[5];
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u8 phy_identifier;
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u8 reserved_2[2];
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};
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/* report phy error log reply structure */
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struct phy_error_log_reply{
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u8 smp_frame_type; /* 0x41 */
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u8 function; /* 0x11 */
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u8 function_result;
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u8 response_length;
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u16 expander_change_count;
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u8 reserved_1[3];
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u8 phy_identifier;
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u8 reserved_2[2];
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u32 invalid_dword;
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u32 running_disparity_error;
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u32 loss_of_dword_sync;
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u32 phy_reset_problem;
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};
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/**
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* _transport_get_linkerrors -
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* _transport_get_expander_phy_error_log - return expander counters
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* @ioc: per adapter object
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* @phy: The sas phy object
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*
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* Returns 0 for success, non-zero for failure.
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*
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*/
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static int
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_transport_get_expander_phy_error_log(struct MPT2SAS_ADAPTER *ioc,
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struct sas_phy *phy)
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{
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Mpi2SmpPassthroughRequest_t *mpi_request;
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Mpi2SmpPassthroughReply_t *mpi_reply;
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struct phy_error_log_request *phy_error_log_request;
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struct phy_error_log_reply *phy_error_log_reply;
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int rc;
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u16 smid;
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u32 ioc_state;
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unsigned long timeleft;
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void *psge;
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u32 sgl_flags;
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u8 issue_reset = 0;
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void *data_out = NULL;
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dma_addr_t data_out_dma;
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u32 sz;
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u64 *sas_address_le;
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u16 wait_state_count;
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if (ioc->shost_recovery) {
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printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
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__func__, ioc->name);
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return -EFAULT;
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}
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mutex_lock(&ioc->transport_cmds.mutex);
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if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
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printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n",
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ioc->name, __func__);
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rc = -EAGAIN;
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goto out;
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}
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ioc->transport_cmds.status = MPT2_CMD_PENDING;
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wait_state_count = 0;
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ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
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while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
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if (wait_state_count++ == 10) {
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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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rc = -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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printk(MPT2SAS_INFO_FMT "%s: waiting for "
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"operational state(count=%d)\n", ioc->name,
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__func__, wait_state_count);
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}
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if (wait_state_count)
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printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
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ioc->name, __func__);
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smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
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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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rc = -EAGAIN;
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goto out;
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}
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mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
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ioc->transport_cmds.smid = smid;
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sz = sizeof(struct phy_error_log_request) +
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sizeof(struct phy_error_log_reply);
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data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
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if (!data_out) {
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printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
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__LINE__, __func__);
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rc = -ENOMEM;
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mpt2sas_base_free_smid(ioc, smid);
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goto out;
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}
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rc = -EINVAL;
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memset(data_out, 0, sz);
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phy_error_log_request = data_out;
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phy_error_log_request->smp_frame_type = 0x40;
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phy_error_log_request->function = 0x11;
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phy_error_log_request->request_length = 2;
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phy_error_log_request->allocated_response_length = 0;
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phy_error_log_request->phy_identifier = phy->number;
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memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
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mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
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mpi_request->PhysicalPort = 0xFF;
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mpi_request->VF_ID = 0; /* TODO */
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mpi_request->VP_ID = 0;
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sas_address_le = (u64 *)&mpi_request->SASAddress;
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*sas_address_le = cpu_to_le64(phy->identify.sas_address);
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mpi_request->RequestDataLength =
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cpu_to_le16(sizeof(struct phy_error_log_request));
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psge = &mpi_request->SGL;
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/* WRITE sgel first */
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sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
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MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
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sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
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ioc->base_add_sg_single(psge, sgl_flags |
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sizeof(struct phy_error_log_request), data_out_dma);
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/* incr sgel */
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psge += ioc->sge_size;
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/* READ sgel last */
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sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
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MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
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MPI2_SGE_FLAGS_END_OF_LIST);
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sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
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ioc->base_add_sg_single(psge, sgl_flags |
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sizeof(struct phy_error_log_reply), data_out_dma +
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sizeof(struct phy_error_log_request));
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dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_error_log - "
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"send to sas_addr(0x%016llx), phy(%d)\n", ioc->name,
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(unsigned long long)phy->identify.sas_address, phy->number));
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mpt2sas_base_put_smid_default(ioc, smid);
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init_completion(&ioc->transport_cmds.done);
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timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
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10*HZ);
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if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
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printk(MPT2SAS_ERR_FMT "%s: timeout\n",
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ioc->name, __func__);
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_debug_dump_mf(mpi_request,
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sizeof(Mpi2SmpPassthroughRequest_t)/4);
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if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
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issue_reset = 1;
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goto issue_host_reset;
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}
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dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_error_log - "
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"complete\n", ioc->name));
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if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
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mpi_reply = ioc->transport_cmds.reply;
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dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
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"phy_error_log - reply data transfer size(%d)\n",
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ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
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if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
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sizeof(struct phy_error_log_reply))
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goto out;
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phy_error_log_reply = data_out +
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sizeof(struct phy_error_log_request);
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dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
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"phy_error_log - function_result(%d)\n",
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ioc->name, phy_error_log_reply->function_result));
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phy->invalid_dword_count =
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be32_to_cpu(phy_error_log_reply->invalid_dword);
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phy->running_disparity_error_count =
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be32_to_cpu(phy_error_log_reply->running_disparity_error);
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phy->loss_of_dword_sync_count =
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be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
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phy->phy_reset_problem_count =
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be32_to_cpu(phy_error_log_reply->phy_reset_problem);
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rc = 0;
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} else
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dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
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"phy_error_log - no reply\n", ioc->name));
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issue_host_reset:
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if (issue_reset)
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mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
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FORCE_BIG_HAMMER);
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out:
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ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
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if (data_out)
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pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
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mutex_unlock(&ioc->transport_cmds.mutex);
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return rc;
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}
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/**
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* _transport_get_linkerrors - return phy counters for both hba and expanders
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* @phy: The sas phy object
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*
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* Only support sas_host direct attached phys.
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* Returns 0 for success, non-zero for failure.
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*
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*/
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@ -963,17 +1181,24 @@ static int
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_transport_get_linkerrors(struct sas_phy *phy)
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{
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struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
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struct _sas_phy *mpt2sas_phy;
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unsigned long flags;
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Mpi2ConfigReply_t mpi_reply;
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Mpi2SasPhyPage1_t phy_pg1;
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mpt2sas_phy = _transport_find_local_phy(ioc, phy);
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if (!mpt2sas_phy) /* this phy not on sas_host */
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spin_lock_irqsave(&ioc->sas_node_lock, flags);
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if (_transport_sas_node_find_by_sas_address(ioc,
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phy->identify.sas_address) == NULL) {
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spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
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return -EINVAL;
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}
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spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
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if (phy->identify.sas_address != ioc->sas_hba.sas_address)
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return _transport_get_expander_phy_error_log(ioc, phy);
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/* get hba phy error logs */
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if ((mpt2sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1,
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mpt2sas_phy->phy_id))) {
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phy->number))) {
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printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
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ioc->name, __FILE__, __LINE__, __func__);
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return -ENXIO;
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@ -982,8 +1207,7 @@ _transport_get_linkerrors(struct sas_phy *phy)
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if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
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printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status"
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"(0x%04x), loginfo(0x%08x)\n", ioc->name,
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mpt2sas_phy->phy_id,
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le16_to_cpu(mpi_reply.IOCStatus),
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phy->number, le16_to_cpu(mpi_reply.IOCStatus),
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le32_to_cpu(mpi_reply.IOCLogInfo));
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phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount);
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