[v2,10/15] mpi3mr: Get target object based on rphy

Message ID	20220804131226.16653-11-sreekanth.reddy@broadcom.com
State	New
Headers	show Return-Path: <linux-scsi-owner@kernel.org> From: Sreekanth Reddy <sreekanth.reddy@broadcom.com> To: linux-scsi@vger.kernel.org Cc: martin.petersen@oracle.com, Sreekanth Reddy <sreekanth.reddy@broadcom.com>, Himanshu Madhani <himanshu.madhani@oracle.com> Subject: [PATCH v2 10/15] mpi3mr: Get target object based on rphy Date: Thu, 4 Aug 2022 18:42:21 +0530 Message-Id: <20220804131226.16653-11-sreekanth.reddy@broadcom.com> In-Reply-To: <20220804131226.16653-1-sreekanth.reddy@broadcom.com> References: <20220804131226.16653-1-sreekanth.reddy@broadcom.com> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000001067d105e569f0a0" Precedence: bulk
Series	mpi3mr: Added Support for SAS Transport \| expand [v2,00/15] mpi3mr: Added Support for SAS Transport [v2,01/15] mpi3mr: Add config and transport related debug flags [v2,02/15] mpi3mr: Add framework to issue cnfg requests [v2,03/15] mpi3mr: Added helper functions to retrieve cnfg pages [v2,05/15] mpi3mr: Add framework to add phys to STL [v2,06/15] mpi3mr: Add helper functions to retrieve device objects [v2,07/15] mpi3mr: Add helper functions to manage device's port [v2,10/15] mpi3mr: Get target object based on rphy [v2,11/15] mpi3mr: Add SAS SATA end devices to STL [v2,13/15] mpi3mr: Support sas transport class callbacks [v2,15/15] mpi3mr: Block IOs while refreshing target dev objects

diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index 9cd5f88..a91a57b 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -997,6 +997,7 @@ struct scmd_priv { * @cfg_page_dma: Configuration page DMA address * @cfg_page_sz: Default configuration page memory size * @sas_transport_enabled: SAS transport enabled or not + * @scsi_device_channel: Channel ID for SCSI devices * @sas_hba: SAS node for the controller * @sas_expander_list: SAS node list of expanders * @sas_node_lock: Lock to protect SAS node list @@ -1180,6 +1181,7 @@ struct mpi3mr_ioc { u16 cfg_page_sz; u8 sas_transport_enabled; + u8 scsi_device_channel; struct mpi3mr_sas_node sas_hba; struct list_head sas_expander_list; spinlock_t sas_node_lock; @@ -1355,6 +1357,8 @@ void mpi3mr_update_links(struct mpi3mr_ioc *mrioc, struct mpi3mr_hba_port *hba_port); void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, struct mpi3mr_tgt_dev *tgtdev); +struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy( + struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy); void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, bool device_add); #endif /*MPI3MR_H_INCLUDED*/ diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 8af43c5..295ad8c 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -3745,6 +3745,8 @@ retry_init: if (!(mrioc->facts.ioc_capabilities & MPI3_IOCFACTS_CAPABILITY_MULTIPATH_ENABLED)) { mrioc->sas_transport_enabled = 1; + mrioc->scsi_device_channel = 1; + mrioc->shost->max_channel = 1; } mrioc->reply_sz = mrioc->facts.reply_sz; diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 9a32dc6..aed9b60 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -4031,9 +4031,10 @@ static void mpi3mr_slave_destroy(struct scsi_device *sdev) struct Scsi_Host *shost; struct mpi3mr_ioc *mrioc; struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; - struct mpi3mr_tgt_dev *tgt_dev; + struct mpi3mr_tgt_dev *tgt_dev = NULL; unsigned long flags; struct scsi_target *starget; + struct sas_rphy *rphy = NULL; if (!sdev->hostdata) return; @@ -4046,7 +4047,14 @@ static void mpi3mr_slave_destroy(struct scsi_device *sdev) scsi_tgt_priv_data->num_luns--; spin_lock_irqsave(&mrioc->tgtdev_lock, flags); - tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); + if (starget->channel == mrioc->scsi_device_channel) + tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); + else if (mrioc->sas_transport_enabled && !starget->channel) { + rphy = dev_to_rphy(starget->dev.parent); + tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, + rphy->identify.sas_address, rphy); + } + if (tgt_dev && (!scsi_tgt_priv_data->num_luns)) tgt_dev->starget = NULL; if (tgt_dev) @@ -4111,16 +4119,23 @@ static int mpi3mr_slave_configure(struct scsi_device *sdev) struct scsi_target *starget; struct Scsi_Host *shost; struct mpi3mr_ioc *mrioc; - struct mpi3mr_tgt_dev *tgt_dev; + struct mpi3mr_tgt_dev *tgt_dev = NULL; unsigned long flags; int retval = 0; + struct sas_rphy *rphy = NULL; starget = scsi_target(sdev); shost = dev_to_shost(&starget->dev); mrioc = shost_priv(shost); spin_lock_irqsave(&mrioc->tgtdev_lock, flags); - tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); + if (starget->channel == mrioc->scsi_device_channel) + tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); + else if (mrioc->sas_transport_enabled && !starget->channel) { + rphy = dev_to_rphy(starget->dev.parent); + tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, + rphy->identify.sas_address, rphy); + } spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); if (!tgt_dev) return -ENXIO; @@ -4168,11 +4183,12 @@ static int mpi3mr_slave_alloc(struct scsi_device *sdev) struct Scsi_Host *shost; struct mpi3mr_ioc *mrioc; struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; - struct mpi3mr_tgt_dev *tgt_dev; + struct mpi3mr_tgt_dev *tgt_dev = NULL; struct mpi3mr_sdev_priv_data *scsi_dev_priv_data; unsigned long flags; struct scsi_target *starget; int retval = 0; + struct sas_rphy *rphy = NULL; starget = scsi_target(sdev); shost = dev_to_shost(&starget->dev); @@ -4180,7 +4196,14 @@ static int mpi3mr_slave_alloc(struct scsi_device *sdev) scsi_tgt_priv_data = starget->hostdata; spin_lock_irqsave(&mrioc->tgtdev_lock, flags); - tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); + + if (starget->channel == mrioc->scsi_device_channel) + tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); + else if (mrioc->sas_transport_enabled && !starget->channel) { + rphy = dev_to_rphy(starget->dev.parent); + tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, + rphy->identify.sas_address, rphy); + } if (tgt_dev) { if (tgt_dev->starget == NULL) @@ -4223,6 +4246,8 @@ static int mpi3mr_target_alloc(struct scsi_target *starget) struct mpi3mr_tgt_dev *tgt_dev; unsigned long flags; int retval = 0; + struct sas_rphy *rphy = NULL; + bool update_stgt_priv_data = false; scsi_tgt_priv_data = kzalloc(sizeof(*scsi_tgt_priv_data), GFP_KERNEL); if (!scsi_tgt_priv_data) @@ -4231,8 +4256,25 @@ static int mpi3mr_target_alloc(struct scsi_target *starget) starget->hostdata = scsi_tgt_priv_data; spin_lock_irqsave(&mrioc->tgtdev_lock, flags); - tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); - if (tgt_dev && !tgt_dev->is_hidden) { + + if (starget->channel == mrioc->scsi_device_channel) { + tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); + if (tgt_dev && !tgt_dev->is_hidden) + update_stgt_priv_data = true; + else + retval = -ENXIO; + } else if (mrioc->sas_transport_enabled && !starget->channel) { + rphy = dev_to_rphy(starget->dev.parent); + tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, + rphy->identify.sas_address, rphy); + if (tgt_dev && !tgt_dev->is_hidden && !tgt_dev->non_stl && + (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA)) + update_stgt_priv_data = true; + else + retval = -ENXIO; + } + + if (update_stgt_priv_data) { scsi_tgt_priv_data->starget = starget; scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle; scsi_tgt_priv_data->perst_id = tgt_dev->perst_id; @@ -4246,8 +4288,7 @@ static int mpi3mr_target_alloc(struct scsi_target *starget) if (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_VD) scsi_tgt_priv_data->throttle_group = tgt_dev->dev_spec.vd_inf.tg; - } else - retval = -ENXIO; + } spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); return retval; diff --git a/drivers/scsi/mpi3mr/mpi3mr_transport.c b/drivers/scsi/mpi3mr/mpi3mr_transport.c index ff85cf3..48cee03 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_transport.c +++ b/drivers/scsi/mpi3mr/mpi3mr_transport.c @@ -198,6 +198,35 @@ static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc, } } +/** + * __mpi3mr_get_tgtdev_by_addr_and_rphy - target device search + * @mrioc: Adapter instance reference + * @sas_address: SAS address of the device + * @rphy: SAS transport layer rphy object + * + * This searches for target device from sas address and rphy + * pointer then return mpi3mr_tgt_dev object. + * + * Return: Valid tget_dev or NULL + */ +struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy( + struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy) +{ + struct mpi3mr_tgt_dev *tgtdev; + + assert_spin_locked(&mrioc->tgtdev_lock); + + list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) + if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) && + (tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address) + && (tgtdev->dev_spec.sas_sata_inf.rphy == rphy)) + goto found_device; + return NULL; +found_device: + mpi3mr_tgtdev_get(tgtdev); + return tgtdev; +} + /** * mpi3mr_expander_find_by_sas_address - sas expander search * @mrioc: Adapter instance reference

[v2,10/15] mpi3mr: Get target object based on rphy

Commit Message

Patch