From: Tyrel Datwyler <tyreld@linux.ibm.com> To: james.bottomley@hansenpartnership.com Cc: martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, brking@linux.ibm.com, Tyrel Datwyler <tyreld@linux.ibm.com> Subject: [PATCH v4 15/21] ibmvfc: send commands down HW Sub-CRQ when channelized Date: Mon, 11 Jan 2021 17:12:19 -0600 [thread overview] Message-ID: <20210111231225.105347-16-tyreld@linux.ibm.com> (raw) In-Reply-To: <20210111231225.105347-1-tyreld@linux.ibm.com> When the client has negotiated the use of channels all vfcFrames are required to go down a Sub-CRQ channel or it is a protocoal violation. If the adapter state is channelized submit vfcFrames to the appropriate Sub-CRQ via the h_send_sub_crq() helper. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> --- drivers/scsi/ibmvscsi/ibmvfc.c | 39 ++++++++++++++++++++++++++++------ 1 file changed, 33 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 3f3cc37a263f..865b87881d86 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -704,6 +704,15 @@ static int ibmvfc_send_crq(struct ibmvfc_host *vhost, u64 word1, u64 word2) return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2); } +static int ibmvfc_send_sub_crq(struct ibmvfc_host *vhost, u64 cookie, u64 word1, + u64 word2, u64 word3, u64 word4) +{ + struct vio_dev *vdev = to_vio_dev(vhost->dev); + + return plpar_hcall_norets(H_SEND_SUB_CRQ, vdev->unit_address, cookie, + word1, word2, word3, word4); +} + /** * ibmvfc_send_crq_init - Send a CRQ init message * @vhost: ibmvfc host struct @@ -1623,8 +1632,17 @@ static int ibmvfc_send_event(struct ibmvfc_event *evt, mb(); - if ((rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]), - be64_to_cpu(crq_as_u64[1])))) { + if (evt->queue->fmt == IBMVFC_SUB_CRQ_FMT) + rc = ibmvfc_send_sub_crq(vhost, + evt->queue->vios_cookie, + be64_to_cpu(crq_as_u64[0]), + be64_to_cpu(crq_as_u64[1]), + 0, 0); + else + rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]), + be64_to_cpu(crq_as_u64[1])); + + if (rc) { list_del(&evt->queue_list); spin_unlock_irqrestore(&evt->queue->l_lock, flags); del_timer(&evt->timer); @@ -1842,6 +1860,7 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) struct ibmvfc_event *evt; u32 tag_and_hwq = blk_mq_unique_tag(cmnd->request); u16 hwq = blk_mq_unique_tag_to_hwq(tag_and_hwq); + u16 scsi_channel; int rc; if (unlikely((rc = fc_remote_port_chkready(rport))) || @@ -1852,7 +1871,13 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } cmnd->result = (DID_OK << 16); - evt = ibmvfc_get_event(&vhost->crq); + if (vhost->using_channels) { + scsi_channel = hwq % vhost->scsi_scrqs.active_queues; + evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[scsi_channel]); + evt->hwq = hwq % vhost->scsi_scrqs.active_queues; + } else + evt = ibmvfc_get_event(&vhost->crq); + ibmvfc_init_event(evt, ibmvfc_scsi_done, IBMVFC_CMD_FORMAT); evt->cmnd = cmnd; @@ -1868,8 +1893,6 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } vfc_cmd->correlation = cpu_to_be64((u64)evt); - if (vhost->using_channels) - evt->hwq = hwq % vhost->scsi_scrqs.active_queues; if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev)))) return ibmvfc_send_event(evt, vhost, 0); @@ -2200,7 +2223,11 @@ static int ibmvfc_reset_device(struct scsi_device *sdev, int type, char *desc) spin_lock_irqsave(vhost->host->host_lock, flags); if (vhost->state == IBMVFC_ACTIVE) { - evt = ibmvfc_get_event(&vhost->crq); + if (vhost->using_channels) + evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[0]); + else + evt = ibmvfc_get_event(&vhost->crq); + ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_CMD_FORMAT); tmf = ibmvfc_init_vfc_cmd(evt, sdev); iu = ibmvfc_get_fcp_iu(vhost, tmf); -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Tyrel Datwyler <tyreld@linux.ibm.com> To: james.bottomley@hansenpartnership.com Cc: Tyrel Datwyler <tyreld@linux.ibm.com>, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 15/21] ibmvfc: send commands down HW Sub-CRQ when channelized Date: Mon, 11 Jan 2021 17:12:19 -0600 [thread overview] Message-ID: <20210111231225.105347-16-tyreld@linux.ibm.com> (raw) In-Reply-To: <20210111231225.105347-1-tyreld@linux.ibm.com> When the client has negotiated the use of channels all vfcFrames are required to go down a Sub-CRQ channel or it is a protocoal violation. If the adapter state is channelized submit vfcFrames to the appropriate Sub-CRQ via the h_send_sub_crq() helper. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> --- drivers/scsi/ibmvscsi/ibmvfc.c | 39 ++++++++++++++++++++++++++++------ 1 file changed, 33 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 3f3cc37a263f..865b87881d86 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -704,6 +704,15 @@ static int ibmvfc_send_crq(struct ibmvfc_host *vhost, u64 word1, u64 word2) return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2); } +static int ibmvfc_send_sub_crq(struct ibmvfc_host *vhost, u64 cookie, u64 word1, + u64 word2, u64 word3, u64 word4) +{ + struct vio_dev *vdev = to_vio_dev(vhost->dev); + + return plpar_hcall_norets(H_SEND_SUB_CRQ, vdev->unit_address, cookie, + word1, word2, word3, word4); +} + /** * ibmvfc_send_crq_init - Send a CRQ init message * @vhost: ibmvfc host struct @@ -1623,8 +1632,17 @@ static int ibmvfc_send_event(struct ibmvfc_event *evt, mb(); - if ((rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]), - be64_to_cpu(crq_as_u64[1])))) { + if (evt->queue->fmt == IBMVFC_SUB_CRQ_FMT) + rc = ibmvfc_send_sub_crq(vhost, + evt->queue->vios_cookie, + be64_to_cpu(crq_as_u64[0]), + be64_to_cpu(crq_as_u64[1]), + 0, 0); + else + rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]), + be64_to_cpu(crq_as_u64[1])); + + if (rc) { list_del(&evt->queue_list); spin_unlock_irqrestore(&evt->queue->l_lock, flags); del_timer(&evt->timer); @@ -1842,6 +1860,7 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) struct ibmvfc_event *evt; u32 tag_and_hwq = blk_mq_unique_tag(cmnd->request); u16 hwq = blk_mq_unique_tag_to_hwq(tag_and_hwq); + u16 scsi_channel; int rc; if (unlikely((rc = fc_remote_port_chkready(rport))) || @@ -1852,7 +1871,13 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } cmnd->result = (DID_OK << 16); - evt = ibmvfc_get_event(&vhost->crq); + if (vhost->using_channels) { + scsi_channel = hwq % vhost->scsi_scrqs.active_queues; + evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[scsi_channel]); + evt->hwq = hwq % vhost->scsi_scrqs.active_queues; + } else + evt = ibmvfc_get_event(&vhost->crq); + ibmvfc_init_event(evt, ibmvfc_scsi_done, IBMVFC_CMD_FORMAT); evt->cmnd = cmnd; @@ -1868,8 +1893,6 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } vfc_cmd->correlation = cpu_to_be64((u64)evt); - if (vhost->using_channels) - evt->hwq = hwq % vhost->scsi_scrqs.active_queues; if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev)))) return ibmvfc_send_event(evt, vhost, 0); @@ -2200,7 +2223,11 @@ static int ibmvfc_reset_device(struct scsi_device *sdev, int type, char *desc) spin_lock_irqsave(vhost->host->host_lock, flags); if (vhost->state == IBMVFC_ACTIVE) { - evt = ibmvfc_get_event(&vhost->crq); + if (vhost->using_channels) + evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[0]); + else + evt = ibmvfc_get_event(&vhost->crq); + ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_CMD_FORMAT); tmf = ibmvfc_init_vfc_cmd(evt, sdev); iu = ibmvfc_get_fcp_iu(vhost, tmf); -- 2.27.0
next prev parent reply other threads:[~2021-01-12 0:49 UTC|newest] Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-11 23:12 [PATCH v4 00/21] ibmvfc: initial MQ development Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 01/21] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-12 11:43 ` John Garry 2021-01-12 11:43 ` John Garry 2021-01-12 22:54 ` Brian King 2021-01-12 22:54 ` Brian King 2021-01-13 0:33 ` Tyrel Datwyler 2021-01-13 0:33 ` Tyrel Datwyler 2021-01-13 17:13 ` Brian King 2021-01-13 17:13 ` Brian King 2021-01-14 1:27 ` Ming Lei 2021-01-14 1:27 ` Ming Lei 2021-01-14 17:24 ` Brian King 2021-01-14 17:24 ` Brian King 2021-01-15 1:47 ` Ming Lei 2021-01-15 1:47 ` Ming Lei 2021-01-11 23:12 ` [PATCH v4 02/21] ibmvfc: move event pool init/free routines Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 03/21] ibmvfc: init/free event pool during queue allocation/free Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 04/21] ibmvfc: add size parameter to ibmvfc_init_event_pool Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 05/21] ibmvfc: define hcall wrapper for registering a Sub-CRQ Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 06/21] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 07/21] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 08/21] ibmvfc: add Sub-CRQ IRQ enable/disable routine Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 09/21] ibmvfc: add handlers to drain and complete Sub-CRQ responses Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 10/21] ibmvfc: define Sub-CRQ interrupt handler routine Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 11/21] ibmvfc: map/request irq and register Sub-CRQ interrupt handler Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 12/21] ibmvfc: implement channel enquiry and setup commands Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 13/21] ibmvfc: advertise client support for using hardware channels Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 14/21] ibmvfc: set and track hw queue in ibmvfc_event struct Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler [this message] 2021-01-11 23:12 ` [PATCH v4 15/21] ibmvfc: send commands down HW Sub-CRQ when channelized Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 16/21] ibmvfc: register Sub-CRQ handles with VIOS during channel setup Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 17/21] ibmvfc: add cancel mad initialization helper Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 18/21] ibmvfc: send Cancel MAD down each hw scsi channel Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-12 21:46 ` Brian King 2021-01-12 21:46 ` Brian King 2021-01-11 23:12 ` [PATCH v4 19/21] ibmvfc: purge scsi channels after transport loss/reset Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 20/21] ibmvfc: enable MQ and set reasonable defaults Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 21/21] ibmvfc: provide modules parameters for MQ settings Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-13 18:57 ` Brian King 2021-01-13 18:57 ` Brian King 2021-01-13 18:58 ` [PATCH v4 00/21] ibmvfc: initial MQ development Brian King 2021-01-13 18:58 ` Brian King
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210111231225.105347-16-tyreld@linux.ibm.com \ --to=tyreld@linux.ibm.com \ --cc=brking@linux.ibm.com \ --cc=james.bottomley@hansenpartnership.com \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-scsi@vger.kernel.org \ --cc=linuxppc-dev@lists.ozlabs.org \ --cc=martin.petersen@oracle.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.