From patchwork Thu Mar 4 05:27:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Muneendra Kumar X-Patchwork-Id: 393205 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00, DATE_IN_PAST_06_12, DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F457C4321A for ; Thu, 4 Mar 2021 12:30:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 227CD64E6C for ; Thu, 4 Mar 2021 12:30:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240674AbhCDM3l (ORCPT ); Thu, 4 Mar 2021 07:29:41 -0500 Received: from relay.smtp-ext.broadcom.com ([192.19.221.30]:40552 "EHLO relay.smtp-ext.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240617AbhCDM3F (ORCPT ); Thu, 4 Mar 2021 07:29:05 -0500 Received: from localhost.localdomain (unknown [10.157.2.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay.smtp-ext.broadcom.com (Postfix) with ESMTPS id 3C89322593; Thu, 4 Mar 2021 04:19:59 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 relay.smtp-ext.broadcom.com 3C89322593 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1614860399; bh=jaH1qwYRDWUByAoY/DHa5MS/4Ord3fdF/BNu2XWm1Zg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JyIKhAEIUAJ9UfibfGkLrEKUBVzdy7rYDgdgPjg31pIM7KvD8/WFVPS3qObb4h6v4 I4Gkzo8YPDT6auceWjAryMw5ERkm547hnhWIm7jZU3oKQk/n6d4jdLa6M2OvISLM7o 24BTTnG09JWauT9LEDr5wLU+5Ee85e2CXkKMUQsg= From: Muneendra To: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, tj@kernel.org, linux-nvme@lists.infradead.org, hare@suse.de Cc: jsmart2021@gmail.com, emilne@redhat.com, mkumar@redhat.com, Gaurav Srivastava Subject: [PATCH v8 08/16] lpfc: vmid: Add support for vmid in mailbox command, does vmid resource allocation and vmid cleanup Date: Thu, 4 Mar 2021 10:57:18 +0530 Message-Id: <1614835646-16217-9-git-send-email-muneendra.kumar@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1614835646-16217-1-git-send-email-muneendra.kumar@broadcom.com> References: <1614835646-16217-1-git-send-email-muneendra.kumar@broadcom.com> Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Gaurav Srivastava This patch does the following - 1.adds supporting datastructures for mailbox command which helps in determining if the firmware supports appid or not. 2.This patch allocates the resource for vmid and checks if the firmware supports the feature or not. 3.The patch cleans up the vmid resources and stops the timer. Signed-off-by: Gaurav Srivastava Signed-off-by: James Smart Reviewed-by: Hannes Reinecke --- v8: Added new function declaration, return error code and memory allocation API changes v7: No change v6: Added Forward declarations and functions to static v5: Merged patches 8 and 11 of v4 to this patch Changed Return code to non-numeric/Symbol v4: No change v3: No change v2: Ported the patch on top of 5.10/scsi-queue --- drivers/scsi/lpfc/lpfc_hw4.h | 12 +++++++ drivers/scsi/lpfc/lpfc_init.c | 66 +++++++++++++++++++++++++++++++++++ drivers/scsi/lpfc/lpfc_mbox.c | 6 ++++ drivers/scsi/lpfc/lpfc_scsi.c | 21 +++++++++++ drivers/scsi/lpfc/lpfc_sli.c | 9 +++++ 5 files changed, 114 insertions(+) diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index 541b9aef6bfe..5fdafc92fc2d 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -272,6 +272,9 @@ struct lpfc_sli4_flags { #define lpfc_vfi_rsrc_rdy_MASK 0x00000001 #define lpfc_vfi_rsrc_rdy_WORD word0 #define LPFC_VFI_RSRC_RDY 1 +#define lpfc_ftr_ashdr_SHIFT 4 +#define lpfc_ftr_ashdr_MASK 0x00000001 +#define lpfc_ftr_ashdr_WORD word0 }; struct sli4_bls_rsp { @@ -2943,6 +2946,9 @@ struct lpfc_mbx_request_features { #define lpfc_mbx_rq_ftr_rq_mrqp_SHIFT 16 #define lpfc_mbx_rq_ftr_rq_mrqp_MASK 0x00000001 #define lpfc_mbx_rq_ftr_rq_mrqp_WORD word2 +#define lpfc_mbx_rq_ftr_rq_ashdr_SHIFT 17 +#define lpfc_mbx_rq_ftr_rq_ashdr_MASK 0x00000001 +#define lpfc_mbx_rq_ftr_rq_ashdr_WORD word2 uint32_t word3; #define lpfc_mbx_rq_ftr_rsp_iaab_SHIFT 0 #define lpfc_mbx_rq_ftr_rsp_iaab_MASK 0x00000001 @@ -2974,6 +2980,9 @@ struct lpfc_mbx_request_features { #define lpfc_mbx_rq_ftr_rsp_mrqp_SHIFT 16 #define lpfc_mbx_rq_ftr_rsp_mrqp_MASK 0x00000001 #define lpfc_mbx_rq_ftr_rsp_mrqp_WORD word3 +#define lpfc_mbx_rq_ftr_rsp_ashdr_SHIFT 17 +#define lpfc_mbx_rq_ftr_rsp_ashdr_MASK 0x00000001 +#define lpfc_mbx_rq_ftr_rsp_ashdr_WORD word3 }; struct lpfc_mbx_supp_pages { @@ -4391,6 +4400,9 @@ struct wqe_common { #define wqe_xchg_WORD word10 #define LPFC_SCSI_XCHG 0x0 #define LPFC_NVME_XCHG 0x1 +#define wqe_appid_SHIFT 5 +#define wqe_appid_MASK 0x00000001 +#define wqe_appid_WORD word10 #define wqe_oas_SHIFT 6 #define wqe_oas_MASK 0x00000001 #define wqe_oas_WORD word10 diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 71f340dd4fbd..78934724aaad 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -98,6 +98,7 @@ static struct scsi_transport_template *lpfc_transport_template = NULL; static struct scsi_transport_template *lpfc_vport_transport_template = NULL; static DEFINE_IDR(lpfc_hba_index); #define LPFC_NVMET_BUF_POST 254 +static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport); /** * lpfc_config_port_prep - Perform lpfc initialization prior to config port @@ -2888,6 +2889,10 @@ lpfc_cleanup(struct lpfc_vport *vport) if (phba->link_state > LPFC_LINK_DOWN) lpfc_port_link_failure(vport); + /* cleanup vmid resources */ + if (lpfc_is_vmid_enabled(phba)) + lpfc_vmid_vport_cleanup(vport); + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { if (vport->port_type != LPFC_PHYSICAL_PORT && ndlp->nlp_DID == Fabric_DID) { @@ -4318,6 +4323,59 @@ lpfc_get_wwpn(struct lpfc_hba *phba) return rol64(wwn, 32); } +/** + * lpfc_vmid_res_alloc - Allocates resources for VMID + * @phba: pointer to lpfc hba data structure. + * @vport: pointer to vport data structure + * + * This routine allocated the resources needed for the vmid. + * + * Return codes + * 0 on Succeess + * Non-0 on Failure + */ +static int +lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport) +{ + u16 i; + + /* vmid feature is supported only on SLI4 */ + if (phba->sli_rev == LPFC_SLI_REV3) { + phba->cfg_vmid_app_header = 0; + phba->cfg_vmid_priority_tagging = 0; + } + + /* if enabled, then allocated the resources */ + if (lpfc_is_vmid_enabled(phba)) { + vport->vmid = + kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid), + GFP_KERNEL); + if (!vport->vmid) + return -ENOMEM; + + rwlock_init(&vport->vmid_lock); + + /* setting the VMID parameters for the vport */ + vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging; + vport->vmid_inactivity_timeout = + phba->cfg_vmid_inactivity_timeout; + vport->max_vmid = phba->cfg_max_vmid; + vport->cur_vmid_cnt = 0; + + for (i = 0; i < LPFC_VMID_HASH_SIZE; i++) + vport->hash_table[i] = NULL; + + vport->vmid_priority_range = bitmap_zalloc + (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL); + + if (!vport->vmid_priority_range) { + kfree(vport->vmid); + return -ENOMEM; + } + } + return 0; +} + /** * lpfc_create_port - Create an FC port * @phba: pointer to lpfc hba data structure. @@ -4470,6 +4528,12 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) vport->port_type, shost->sg_tablesize, phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt); + /* allocate the resources for vmid */ + rc = lpfc_vmid_res_alloc(phba, vport); + + if (rc) + goto out; + /* Initialize all internally managed lists. */ INIT_LIST_HEAD(&vport->fc_nodes); INIT_LIST_HEAD(&vport->rcv_buffer_list); @@ -4494,6 +4558,8 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) return vport; out_put_shost: + kfree(vport->vmid); + bitmap_free(vport->vmid_priority_range); scsi_host_put(shost); out: return NULL; diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index c03a7f12dd65..7a15986ed586 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -2100,6 +2100,12 @@ lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq) bf_set(lpfc_mbx_rq_ftr_rq_iaab, &mboxq->u.mqe.un.req_ftrs, 0); bf_set(lpfc_mbx_rq_ftr_rq_iaar, &mboxq->u.mqe.un.req_ftrs, 0); } + + /* Enable Application Services Header for apphedr VMID */ + if (phba->cfg_vmid_app_header) { + bf_set(lpfc_mbx_rq_ftr_rq_ashdr, &mboxq->u.mqe.un.req_ftrs, 1); + bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 1); + } return; } diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index a4d697373c71..e96e767faa2a 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5370,6 +5370,27 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) return 0; } +/* + * lpfc_vmid_vport_cleanup - cleans up the resources associated with a vports + * @vport: The virtual port for which this call is being executed. + */ +void lpfc_vmid_vport_cleanup(struct lpfc_vport *vport) +{ + /* delete the timer */ + if (vport->port_type == LPFC_PHYSICAL_PORT) + del_timer_sync(&vport->phba->inactive_vmid_poll); + + /* free the resources */ + kfree(vport->qfpa_res); + kfree(vport->vmid_priority.vmid_range); + kfree(vport->vmid); + + /* reset variables */ + vport->qfpa_res = NULL; + vport->vmid_priority.vmid_range = NULL; + vport->vmid = NULL; + vport->cur_vmid_cnt = 0; +} /** * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index fa1a714a78f0..b20fa5d4bd80 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -7701,6 +7701,15 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba) goto out_free_mbox; } + /* Disable vmid if app header is not supported */ + if (phba->cfg_vmid_app_header && !(bf_get(lpfc_mbx_rq_ftr_rsp_ashdr, + &mqe->un.req_ftrs))) { + bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 0); + phba->cfg_vmid_app_header = 0; + lpfc_printf_log(phba, KERN_DEBUG, LOG_SLI, + "1242 vmid feature not supported\n"); + } + /* * The port must support FCP initiator mode as this is the * only mode running in the host.