Re: [PATCH v1 06/20] [SCSI] mpt3sas: Provides the physical location of sas drives

From: Johannes Thumshirn
Date: Fri Jun 19 2015 - 07:04:45 EST

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In reply to: Sreekanth Reddy: "[PATCH v1 06/20] [SCSI] mpt3sas: Provides the physical location of sas drives"
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On Fri, Jun 19, 2015 at 04:26:31PM +0530, Sreekanth Reddy wrote:
> This Patch will provide more details of the devices such as slot number, enclosure logical id, enclosure level & connector name in the following scenarios,
>
> - When end device is added in the topology,
> - When the end device is removed from the setup,
> - When the SCSI mid layer issues TASK ABORT/ DEVICE RESET/ TARGET RESET during error handling,
> - When any command to the device fails with Sense key Hardware error or Medium error or Unit Attention,
> - When firmware returns device error or device not ready status for the end device,
> - When a Predicted fault is detected on an end device.
>
> This information can be used by the user to identify the location of the desired drive in the topology.
>
> Driver will get these information by reading the sas device page0.
>
> Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@xxxxxxxxxxxxx>
> ---
> drivers/scsi/mpt3sas/mpt3sas_base.h | 2 +
> drivers/scsi/mpt3sas/mpt3sas_scsih.c | 238 +++++++++++++++++++++++++++++------
> 2 files changed, 201 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
> index b79ad4f..fc694f1 100644
> --- a/drivers/scsi/mpt3sas/mpt3sas_base.h
> +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
> @@ -317,6 +317,8 @@ struct _sas_device {
> u8 fast_path;
> u8 pfa_led_on;
> u8 pend_sas_rphy_add;
> + u8 enclosure_level;
> + u8 connector_name[4];
> };
>
> /**
> diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> index d457dba..64dd90b 100644
> --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> @@ -585,6 +585,22 @@ _scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc,
>
> if (!sas_device)
> return;
> + pr_info(MPT3SAS_FMT
> + "removing handle(0x%04x), sas_addr(0x%016llx)\n",
> + ioc->name, sas_device->handle,
> + (unsigned long long) sas_device->sas_address);
> +
> + if (sas_device->enclosure_handle != 0)
> + pr_info(MPT3SAS_FMT
> + "removing enclosure logical id(0x%016llx), slot(%d)\n",
> + ioc->name, (unsigned long long)
> + sas_device->enclosure_logical_id, sas_device->slot);
> +
> + if (sas_device->connector_name[0] != '\0')
> + pr_info(MPT3SAS_FMT
> + "removing enclosure level(0x%04x), connector name( %s)\n",
> + ioc->name, sas_device->enclosure_level,
> + sas_device->connector_name);
>
> spin_lock_irqsave(&ioc->sas_device_lock, flags);
> list_del(&sas_device->list);
> @@ -663,6 +679,18 @@ _scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc,
> ioc->name, __func__, sas_device->handle,
> (unsigned long long)sas_device->sas_address));
>
> + if (sas_device->enclosure_handle != 0)
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: enclosure logical id(0x%016llx), slot( %d)\n",
> + ioc->name, __func__, (unsigned long long)
> + sas_device->enclosure_logical_id, sas_device->slot));
> +
> + if (sas_device->connector_name[0] != '\0')
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: enclosure level(0x%04x), connector name( %s)\n",
> + ioc->name, __func__,
> + sas_device->enclosure_level, sas_device->connector_name));
> +
> spin_lock_irqsave(&ioc->sas_device_lock, flags);
> list_add_tail(&sas_device->list, &ioc->sas_device_list);
> spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
> @@ -704,6 +732,18 @@ _scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc,
> __func__, sas_device->handle,
> (unsigned long long)sas_device->sas_address));
>
> + if (sas_device->enclosure_handle != 0)
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: enclosure logical id(0x%016llx), slot( %d)\n",
> + ioc->name, __func__, (unsigned long long)
> + sas_device->enclosure_logical_id, sas_device->slot));
> +
> + if (sas_device->connector_name[0] != '\0')
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: enclosure level(0x%04x), connector name( %s)\n",
> + ioc->name, __func__, sas_device->enclosure_level,
> + sas_device->connector_name));
> +
> spin_lock_irqsave(&ioc->sas_device_lock, flags);
> list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
> _scsih_determine_boot_device(ioc, sas_device, 0);
> @@ -1772,10 +1812,16 @@ _scsih_slave_configure(struct scsi_device *sdev)
> "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
> ds, handle, (unsigned long long)sas_device->sas_address,
> sas_device->phy, (unsigned long long)sas_device->device_name);
> - sdev_printk(KERN_INFO, sdev,
> - "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
> - ds, (unsigned long long)
> - sas_device->enclosure_logical_id, sas_device->slot);
> + if (sas_device->enclosure_handle != 0)
> + sdev_printk(KERN_INFO, sdev,
> + "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
> + ds, (unsigned long long)
> + sas_device->enclosure_logical_id, sas_device->slot);
> + if (sas_device->connector_name[0] != '\0')
> + sdev_printk(KERN_INFO, sdev,
> + "%s: enclosure level(0x%04x), connector name( %s)\n",
> + ds, sas_device->enclosure_level,
> + sas_device->connector_name);
>
> spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
>
> @@ -2189,10 +2235,17 @@ _scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
> sas_device->handle,
> (unsigned long long)sas_device->sas_address,
> sas_device->phy);
> - starget_printk(KERN_INFO, starget,
> - "enclosure_logical_id(0x%016llx), slot(%d)\n",
> - (unsigned long long)sas_device->enclosure_logical_id,
> - sas_device->slot);
> + if (sas_device->enclosure_handle != 0)
> + starget_printk(KERN_INFO, starget,
> + "enclosure_logical_id(0x%016llx), slot(%d)\n",
> + (unsigned long long)
> + sas_device->enclosure_logical_id,
> + sas_device->slot);
> + if (sas_device->connector_name)
> + starget_printk(KERN_INFO, starget,
> + "enclosure level(0x%04x),connector name(%s)\n",
> + sas_device->enclosure_level,
> + sas_device->connector_name);
> }
> spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
> }
> @@ -2813,6 +2866,18 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
> "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
> ioc->name, handle,
> (unsigned long long)sas_address));
> + if (sas_device->enclosure_handle != 0)
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "setting delete flag:enclosure logical id(0x%016llx),"
> + " slot(%d)\n", ioc->name, (unsigned long long)
> + sas_device->enclosure_logical_id,
> + sas_device->slot));
> + if (sas_device->connector_name)
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "setting delete flag: enclosure level(0x%04x),"
> + " connector name( %s)\n", ioc->name,
> + sas_device->enclosure_level,
> + sas_device->connector_name));
> _scsih_ublock_io_device(ioc, sas_address);
> sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
> }
> @@ -3828,10 +3893,19 @@ _scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
> "\tsas_address(0x%016llx), phy(%d)\n",
> ioc->name, (unsigned long long)
> sas_device->sas_address, sas_device->phy);
> - pr_warn(MPT3SAS_FMT
> - "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
> - ioc->name, (unsigned long long)
> - sas_device->enclosure_logical_id, sas_device->slot);
> + if (sas_device->enclosure_handle != 0)
> + pr_warn(MPT3SAS_FMT
> + "\tenclosure_logical_id(0x%016llx),"
> + "slot(%d)\n", ioc->name,
> + (unsigned long long)
> + sas_device->enclosure_logical_id,
> + sas_device->slot);
> + if (sas_device->connector_name[0])
> + pr_warn(MPT3SAS_FMT
> + "\tenclosure level(0x%04x),"
> + " connector name( %s)\n", ioc->name,
> + sas_device->enclosure_level,
> + sas_device->connector_name);
> }
> spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
> }
> @@ -4006,7 +4080,16 @@ _scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
> spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
> return;
> }
> - starget_printk(KERN_WARNING, starget, "predicted fault\n");
> + if (sas_device->enclosure_handle != 0)
> + starget_printk(KERN_INFO, starget, "predicted fault, "
> + "enclosure logical id(0x%016llx), slot(%d)\n",
> + (unsigned long long)sas_device->enclosure_logical_id,
> + sas_device->slot);
> + if (sas_device->connector_name[0] != '\0')
> + starget_printk(KERN_WARNING, starget, "predicted fault, "
> + "enclosure level(0x%04x), connector name( %s)\n",
> + sas_device->enclosure_level,
> + sas_device->connector_name);
> spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
>
> if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
> @@ -4126,8 +4209,13 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
> _scsih_smart_predicted_fault(ioc,
> le16_to_cpu(mpi_reply->DevHandle));
> mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
> - }
>
> + if (!(ioc->logging_level & MPT_DEBUG_REPLY) &&
> + ((scmd->sense_buffer[2] == UNIT_ATTENTION) ||
> + (scmd->sense_buffer[2] == MEDIUM_ERROR) ||
> + (scmd->sense_buffer[2] == HARDWARE_ERROR)))
> + _scsih_scsi_ioc_info(ioc, scmd, mpi_reply, smid);
> + }
> switch (ioc_status) {
> case MPI2_IOCSTATUS_BUSY:
> case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
> @@ -4795,6 +4883,16 @@ _scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
> sas_device->handle, handle);
> sas_target_priv_data->handle = handle;
> sas_device->handle = handle;
> + if (sas_device_pg0.Flags &
> + MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
> + sas_device->enclosure_level =
> + le16_to_cpu(sas_device_pg0.EnclosureLevel);
> + memcpy(&sas_device->connector_name[0],
> + &sas_device_pg0.ConnectorName[0], 4);
> + } else {
> + sas_device->enclosure_level = 0;
> + sas_device->connector_name[0] = '\0';
> + }
> }
>
> /* check if device is present */
> @@ -4901,14 +4999,24 @@ _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
> ioc->name, __FILE__, __LINE__, __func__);
> sas_device->enclosure_handle =
> le16_to_cpu(sas_device_pg0.EnclosureHandle);
> - sas_device->slot =
> - le16_to_cpu(sas_device_pg0.Slot);
> + if (sas_device->enclosure_handle != 0)
> + sas_device->slot =
> + le16_to_cpu(sas_device_pg0.Slot);
> sas_device->device_info = device_info;
> sas_device->sas_address = sas_address;
> sas_device->phy = sas_device_pg0.PhyNum;
> sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
> MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
>
> + if (sas_device_pg0.Flags & MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
> + sas_device->enclosure_level =
> + le16_to_cpu(sas_device_pg0.EnclosureLevel);
> + memcpy(&sas_device->connector_name[0],
> + &sas_device_pg0.ConnectorName[0], 4);
> + } else {
> + sas_device->enclosure_level = 0;
> + sas_device->connector_name[0] = '\0';
> + }
> /* get enclosure_logical_id */
> if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
> ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
> @@ -4950,6 +5058,18 @@ _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
> ioc->name, __func__,
> sas_device->handle, (unsigned long long)
> sas_device->sas_address));
> + if (sas_device->enclosure_handle != 0)
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: enter: enclosure logical id(0x%016llx), slot(%d)\n",
> + ioc->name, __func__,
> + (unsigned long long)sas_device->enclosure_logical_id,
> + sas_device->slot));
> + if (sas_device->connector_name[0] != '\0')
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: enter: enclosure level(0x%04x), connector name( %s)\n",
> + ioc->name, __func__,
> + sas_device->enclosure_level,
> + sas_device->connector_name));
>
> if (sas_device->starget && sas_device->starget->hostdata) {
> sas_target_priv_data = sas_device->starget->hostdata;
> @@ -4966,12 +5086,34 @@ _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
> "removing handle(0x%04x), sas_addr(0x%016llx)\n",
> ioc->name, sas_device->handle,
> (unsigned long long) sas_device->sas_address);
> + if (sas_device->enclosure_handle != 0)
> + pr_info(MPT3SAS_FMT
> + "removing : enclosure logical id(0x%016llx), slot(%d)\n",
> + ioc->name,
> + (unsigned long long)sas_device->enclosure_logical_id,
> + sas_device->slot);
> + if (sas_device->connector_name[0] != '\0')
> + pr_info(MPT3SAS_FMT
> + "removing enclosure level(0x%04x), connector name( %s)\n",
> + ioc->name, sas_device->enclosure_level,
> + sas_device->connector_name);
>
> dewtprintk(ioc, pr_info(MPT3SAS_FMT
> "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
> ioc->name, __func__,
> - sas_device->handle, (unsigned long long)
> - sas_device->sas_address));
> + sas_device->handle, (unsigned long long)
> + sas_device->sas_address));
> + if (sas_device->enclosure_handle != 0)
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: exit: enclosure logical id(0x%016llx), slot(%d)\n",
> + ioc->name, __func__,
> + (unsigned long long)sas_device->enclosure_logical_id,
> + sas_device->slot));
> + if (sas_device->connector_name[0] != '\0')
> + dewtprintk(ioc, pr_info(MPT3SAS_FMT
> + "%s: exit: enclosure level(0x%04x), connector name(%s)\n",
> + ioc->name, __func__, sas_device->enclosure_level,
> + sas_device->connector_name));
>
> kfree(sas_device);
> }
> @@ -6364,9 +6506,7 @@ _scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
> /**
> * _scsih_mark_responding_sas_device - mark a sas_devices as responding
> * @ioc: per adapter object
> - * @sas_address: sas address
> - * @slot: enclosure slot id
> - * @handle: device handle
> + * @sas_device_pg0: SAS Device page 0
> *
> * After host reset, find out whether devices are still responding.
> * Used in _scsih_remove_unresponsive_sas_devices.
> @@ -6374,8 +6514,8 @@ _scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
> * Return nothing.
> */
> static void
> -_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
> - u16 slot, u16 handle)
> +_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc,
> +Mpi2SasDevicePage0_t *sas_device_pg0)
> {
> struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
> struct scsi_target *starget;
> @@ -6384,8 +6524,8 @@ _scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
>
> spin_lock_irqsave(&ioc->sas_device_lock, flags);
> list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
> - if (sas_device->sas_address == sas_address &&
> - sas_device->slot == slot) {
> + if ((sas_device->sas_address == sas_device_pg0->SASAddress) &&
> + (sas_device->slot == sas_device_pg0->Slot)) {
> sas_device->responding = 1;
> starget = sas_device->starget;
> if (starget && starget->hostdata) {
> @@ -6394,22 +6534,40 @@ _scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
> sas_target_priv_data->deleted = 0;
> } else
> sas_target_priv_data = NULL;
> - if (starget)
> + if (starget) {
> starget_printk(KERN_INFO, starget,
> - "handle(0x%04x), sas_addr(0x%016llx), "
> - "enclosure logical id(0x%016llx), "
> - "slot(%d)\n", handle,
> - (unsigned long long)sas_device->sas_address,
> + "handle(0x%04x), sas_addr(0x%016llx)\n",
> + sas_device_pg0->DevHandle,
> (unsigned long long)
> - sas_device->enclosure_logical_id,
> - sas_device->slot);
> - if (sas_device->handle == handle)
> + sas_device->sas_address);
> +
> + if (sas_device->enclosure_handle != 0)
> + starget_printk(KERN_INFO, starget,
> + "enclosure logical id(0x%016llx),"
> + " slot(%d)\n",
> + (unsigned long long)
> + sas_device->enclosure_logical_id,
> + sas_device->slot);
> + }
> + if (sas_device_pg0->Flags &
> + MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
> + sas_device->enclosure_level =
> + le16_to_cpu(sas_device_pg0->EnclosureLevel);
> + memcpy(&sas_device->connector_name[0],
> + &sas_device_pg0->ConnectorName[0], 4);
> + } else {
> + sas_device->enclosure_level = 0;
> + sas_device->connector_name[0] = '\0';
> + }
> +
> + if (sas_device->handle == sas_device_pg0->DevHandle)
> goto out;
> pr_info("\thandle changed from(0x%04x)!!!\n",
> sas_device->handle);
> - sas_device->handle = handle;
> + sas_device->handle = sas_device_pg0->DevHandle;
> if (sas_target_priv_data)
> - sas_target_priv_data->handle = handle;
> + sas_target_priv_data->handle =
> + sas_device_pg0->DevHandle;
> goto out;
> }
> }
> @@ -6448,13 +6606,15 @@ _scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
> MPI2_IOCSTATUS_MASK;
> if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
> break;
> - handle = le16_to_cpu(sas_device_pg0.DevHandle);
> + handle = sas_device_pg0.DevHandle =
> + le16_to_cpu(sas_device_pg0.DevHandle);
> device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
> if (!(_scsih_is_end_device(device_info)))
> continue;
> - _scsih_mark_responding_sas_device(ioc,
> - le64_to_cpu(sas_device_pg0.SASAddress),
> - le16_to_cpu(sas_device_pg0.Slot), handle);
> + sas_device_pg0.SASAddress =
> + le64_to_cpu(sas_device_pg0.SASAddress);
> + sas_device_pg0.Slot = le16_to_cpu(sas_device_pg0.Slot);
> + _scsih_mark_responding_sas_device(ioc, &sas_device_pg0);
> }
>
> out:
> --
> 2.0.2
>

Reviewed-by: Johannes Thumshirn <jthumshirn@xxxxxxx>

--
Johannes Thumshirn Storage
jthumshirn@xxxxxxx +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
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Next message: Bartlomiej Zolnierkiewicz: "Re: [PATCH 1/6] clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock support"
Previous message: Johannes Thumshirn: "Re: [PATCH v1 01/20] [SCSI] mpt3sas: Added Combined Reply Queue feature to extend up-to 96 MSIX vector support"
In reply to: Sreekanth Reddy: "[PATCH v1 06/20] [SCSI] mpt3sas: Provides the physical location of sas drives"
Next in thread: Martin K. Petersen: "Re: [PATCH v1 06/20] [SCSI] mpt3sas: Provides the physical location of sas drives"
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