From patchwork Mon Apr 20 13:56:26 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Smart X-Patchwork-Id: 6242491 Return-Path: X-Original-To: patchwork-linux-scsi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 26654BF4A6 for ; Mon, 20 Apr 2015 13:57:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 97B6B203F7 for ; Mon, 20 Apr 2015 13:57:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 085272041B for ; Mon, 20 Apr 2015 13:57:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755414AbbDTN5L (ORCPT ); Mon, 20 Apr 2015 09:57:11 -0400 Received: from cmexedge2.emulex.com ([138.239.224.100]:30920 "EHLO CMEXEDGE2.ext.emulex.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755399AbbDTN5F (ORCPT ); Mon, 20 Apr 2015 09:57:05 -0400 Received: from CMEXHTCAS1.ad.emulex.com (138.239.115.217) by CMEXEDGE2.ext.emulex.com (138.239.224.100) with Microsoft SMTP Server (TLS) id 14.3.210.2; Mon, 20 Apr 2015 06:57:38 -0700 Received: from myfc17 (138.239.125.76) by smtp.emulex.com (138.239.115.207) with Microsoft SMTP Server id 14.3.210.2; Mon, 20 Apr 2015 06:56:40 -0700 Date: Mon, 20 Apr 2015 09:56:26 -0400 From: James Smart To: Subject: [PATCH 03/14] lpfc: Add support for ELS LCB. Message-ID: <5535058a.EPPUgDo7Qzh5RC0J%james.smart@emulex.com> User-Agent: Heirloom mailx 12.5 7/5/10 MIME-Version: 1.0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for ELS LCB. Also has a little whitespace fixing. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Reviewed-by: Hannes Reinecke --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_els.c | 239 +++++++++++++++++++++++++++++++++++++++++- drivers/scsi/lpfc/lpfc_hw.h | 32 ++++++ drivers/scsi/lpfc/lpfc_hw4.h | 27 ++++- drivers/scsi/lpfc/lpfc_init.c | 2 + drivers/scsi/lpfc/lpfc_sli4.h | 11 ++ 6 files changed, 306 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 9b81a34..3246d09 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -230,6 +230,7 @@ struct lpfc_stats { uint32_t elsRcvRRQ; uint32_t elsRcvRTV; uint32_t elsRcvECHO; + uint32_t elsRcvLCB; uint32_t elsXmitFLOGI; uint32_t elsXmitFDISC; uint32_t elsXmitPLOGI; diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 851e8ef..9f28dcb 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -4587,16 +4587,16 @@ lpfc_els_disc_plogi(struct lpfc_vport *vport) if (!NLP_CHK_NODE_ACT(ndlp)) continue; if (ndlp->nlp_state == NLP_STE_NPR_NODE && - (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && - (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && - (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { + (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && + (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && + (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); sentplogi++; vport->num_disc_nodes++; if (vport->num_disc_nodes >= - vport->cfg_discovery_threads) { + vport->cfg_discovery_threads) { spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_NLP_MORE; spin_unlock_irq(shost->host_lock); @@ -4615,6 +4615,233 @@ lpfc_els_disc_plogi(struct lpfc_vport *vport) return sentplogi; } +static void +lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) +{ + MAILBOX_t *mb; + IOCB_t *icmd; + uint8_t *pcmd; + struct lpfc_iocbq *elsiocb; + struct lpfc_nodelist *ndlp; + struct ls_rjt *stat; + struct lpfc_lcb_context *lcb_context; + struct fc_lcb_res_frame *lcb_res; + uint32_t cmdsize; + int rc; + + mb = &pmb->u.mb; + + lcb_context = (struct lpfc_lcb_context *)pmb->context1; + ndlp = lcb_context->ndlp; + pmb->context1 = NULL; + pmb->context2 = NULL; + + if (mb->mbxStatus) { + mempool_free(pmb, phba->mbox_mem_pool); + goto error; + } + + mempool_free(pmb, phba->mbox_mem_pool); + + cmdsize = sizeof(struct fc_lcb_res_frame); + elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, + lpfc_max_els_tries, ndlp, + ndlp->nlp_DID, ELS_CMD_ACC); + + /* Decrement the ndlp reference count from previous mbox command */ + lpfc_nlp_put(ndlp); + + if (!elsiocb) + goto free_lcb_context; + + lcb_res = (struct fc_lcb_res_frame *) + (((struct lpfc_dmabuf *)elsiocb->context2)->virt); + + icmd = &elsiocb->iocb; + icmd->ulpContext = lcb_context->rx_id; + icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; + + pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt); + *((uint32_t *)(pcmd)) = ELS_CMD_ACC; + lcb_res->lcb_sub_command = lcb_context->sub_command; + lcb_res->lcb_type = lcb_context->type; + lcb_res->lcb_frequency = lcb_context->frequency; + elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; + phba->fc_stat.elsXmitACC++; + rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); + if (rc == IOCB_ERROR) + lpfc_els_free_iocb(phba, elsiocb); + + kfree(lcb_context); + return; + +error: + cmdsize = sizeof(struct fc_lcb_res_frame); + elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, + lpfc_max_els_tries, ndlp, + ndlp->nlp_DID, ELS_CMD_LS_RJT); + lpfc_nlp_put(ndlp); + if (!elsiocb) + goto free_lcb_context; + + icmd = &elsiocb->iocb; + icmd->ulpContext = lcb_context->rx_id; + icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; + pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt); + + *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT; + stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); + stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; + + elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; + phba->fc_stat.elsXmitLSRJT++; + rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); + if (rc == IOCB_ERROR) + lpfc_els_free_iocb(phba, elsiocb); +free_lcb_context: + kfree(lcb_context); +} + +static int +lpfc_sli4_set_beacon(struct lpfc_vport *vport, + struct lpfc_lcb_context *lcb_context, + uint32_t beacon_state) +{ + struct lpfc_hba *phba = vport->phba; + LPFC_MBOXQ_t *mbox = NULL; + uint32_t len; + int rc; + + mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!mbox) + return 1; + + len = sizeof(struct lpfc_mbx_set_beacon_config) - + sizeof(struct lpfc_sli4_cfg_mhdr); + lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, + LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len, + LPFC_SLI4_MBX_EMBED); + mbox->context1 = (void *)lcb_context; + mbox->vport = phba->pport; + mbox->mbox_cmpl = lpfc_els_lcb_rsp; + bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config, + phba->sli4_hba.physical_port); + bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config, + beacon_state); + bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1); + bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) { + mempool_free(mbox, phba->mbox_mem_pool); + return 1; + } + + return 0; +} + + +/** + * lpfc_els_rcv_lcb - Process an unsolicited LCB + * @vport: pointer to a host virtual N_Port data structure. + * @cmdiocb: pointer to lpfc command iocb data structure. + * @ndlp: pointer to a node-list data structure. + * + * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB. + * First, the payload of the unsolicited LCB is checked. + * Then based on Subcommand either Becon will turn on or off. + * + * Return code + * 0 - Sent the acc response + * 1 - Sent the reject response. + **/ +static int +lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, + struct lpfc_nodelist *ndlp) +{ + struct lpfc_hba *phba = vport->phba; + struct lpfc_dmabuf *pcmd; + IOCB_t *icmd; + uint8_t *lp; + struct fc_lcb_request_frame *beacon; + struct lpfc_lcb_context *lcb_context; + uint8_t state, rjt_err; + struct ls_rjt stat; + + icmd = &cmdiocb->iocb; + pcmd = (struct lpfc_dmabuf *)cmdiocb->context2; + lp = (uint8_t *)pcmd->virt; + beacon = (struct fc_lcb_request_frame *)pcmd->virt; + + lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, + "0192 ELS LCB Data x%x x%x x%x x%x sub x%x " + "type x%x frequency %x duration x%x\n", + lp[0], lp[1], lp[2], + beacon->lcb_command, + beacon->lcb_sub_command, + beacon->lcb_type, + beacon->lcb_frequency, + be16_to_cpu(beacon->lcb_duration)); + + if (phba->sli_rev < LPFC_SLI_REV4 || + (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != + LPFC_SLI_INTF_IF_TYPE_2)) { + rjt_err = LSRJT_CMD_UNSUPPORTED; + goto rjt; + } + lcb_context = kmalloc(sizeof(struct lpfc_lcb_context), GFP_KERNEL); + + if (phba->hba_flag & HBA_FCOE_MODE) { + rjt_err = LSRJT_CMD_UNSUPPORTED; + goto rjt; + } + if (beacon->lcb_frequency == 0) { + rjt_err = LSRJT_CMD_UNSUPPORTED; + goto rjt; + } + if ((beacon->lcb_type != LPFC_LCB_GREEN) && + (beacon->lcb_type != LPFC_LCB_AMBER)) { + rjt_err = LSRJT_CMD_UNSUPPORTED; + goto rjt; + } + if ((beacon->lcb_sub_command != LPFC_LCB_ON) && + (beacon->lcb_sub_command != LPFC_LCB_OFF)) { + rjt_err = LSRJT_CMD_UNSUPPORTED; + goto rjt; + } + if ((beacon->lcb_sub_command == LPFC_LCB_ON) && + (beacon->lcb_type != LPFC_LCB_GREEN) && + (beacon->lcb_type != LPFC_LCB_AMBER)) { + rjt_err = LSRJT_CMD_UNSUPPORTED; + goto rjt; + } + if (be16_to_cpu(beacon->lcb_duration) != 0) { + rjt_err = LSRJT_CMD_UNSUPPORTED; + goto rjt; + } + + state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0; + lcb_context->sub_command = beacon->lcb_sub_command; + lcb_context->type = beacon->lcb_type; + lcb_context->frequency = beacon->lcb_frequency; + lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id; + lcb_context->rx_id = cmdiocb->iocb.ulpContext; + lcb_context->ndlp = lpfc_nlp_get(ndlp); + if (lpfc_sli4_set_beacon(vport, lcb_context, state)) { + lpfc_printf_vlog(ndlp->vport, KERN_ERR, + LOG_ELS, "0193 failed to send mail box"); + lpfc_nlp_put(ndlp); + rjt_err = LSRJT_UNABLE_TPC; + goto rjt; + } + return 0; +rjt: + memset(&stat, 0, sizeof(stat)); + stat.un.b.lsRjtRsnCode = rjt_err; + lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); + return 1; +} + + /** * lpfc_els_flush_rscn - Clean up any rscn activities with a vport * @vport: pointer to a host virtual N_Port data structure. @@ -6821,6 +7048,10 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, } lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); break; + case ELS_CMD_LCB: + phba->fc_stat.elsRcvLCB++; + lpfc_els_rcv_lcb(vport, elsiocb, ndlp); + break; case ELS_CMD_RSCN: phba->fc_stat.elsRcvRSCN++; lpfc_els_rcv_rscn(vport, elsiocb, ndlp); diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 37beb9d..6ad0a6f 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -558,6 +558,7 @@ struct fc_vft_header { #define ELS_CMD_SCR 0x62000000 #define ELS_CMD_RNID 0x78000000 #define ELS_CMD_LIRR 0x7A000000 +#define ELS_CMD_LCB 0x81000000 #else /* __LITTLE_ENDIAN_BITFIELD */ #define ELS_CMD_MASK 0xffff #define ELS_RSP_MASK 0xff @@ -595,6 +596,7 @@ struct fc_vft_header { #define ELS_CMD_SCR 0x62 #define ELS_CMD_RNID 0x78 #define ELS_CMD_LIRR 0x7A +#define ELS_CMD_LCB 0x81 #endif /* @@ -1010,6 +1012,36 @@ typedef struct _ELS_PKT { /* Structure is in Big Endian format */ } un; } ELS_PKT; +/* + * Link Cable Beacon (LCB) ELS Frame + */ + +struct fc_lcb_request_frame { + uint32_t lcb_command; /* ELS command opcode (0x81) */ + uint8_t lcb_sub_command;/* LCB Payload Word 1, bit 24:31 */ +#define LPFC_LCB_ON 0x1 +#define LPFC_LCB_OFF 0x2 + uint8_t reserved[3]; + + uint8_t lcb_type; /* LCB Payload Word 2, bit 24:31 */ +#define LPFC_LCB_GREEN 0x1 +#define LPFC_LCB_AMBER 0x2 + uint8_t lcb_frequency; /* LCB Payload Word 2, bit 16:23 */ + uint16_t lcb_duration; /* LCB Payload Word 2, bit 15:0 */ +}; + +/* + * Link Cable Beacon (LCB) ELS Response Frame + */ +struct fc_lcb_res_frame { + uint32_t lcb_ls_acc; /* Acceptance of LCB request (0x02) */ + uint8_t lcb_sub_command;/* LCB Payload Word 1, bit 24:31 */ + uint8_t reserved[3]; + uint8_t lcb_type; /* LCB Payload Word 2, bit 24:31 */ + uint8_t lcb_frequency; /* LCB Payload Word 2, bit 16:23 */ + uint16_t lcb_duration; /* LCB Payload Word 2, bit 15:0 */ +}; + /******** FDMI ********/ /* lpfc_sli_ct_request defines the CT_IU preamble for FDMI commands */ diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index 1813c45..9f2bfcc 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -914,6 +914,8 @@ struct mbox_header { #define LPFC_MBOX_OPCODE_FUNCTION_RESET 0x3D #define LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG 0x3E #define LPFC_MBOX_OPCODE_SET_BOOT_CONFIG 0x43 +#define LPFC_MBOX_OPCODE_SET_BEACON_CONFIG 0x45 +#define LPFC_MBOX_OPCODE_GET_BEACON_CONFIG 0x46 #define LPFC_MBOX_OPCODE_GET_PORT_NAME 0x4D #define LPFC_MBOX_OPCODE_MQ_CREATE_EXT 0x5A #define LPFC_MBOX_OPCODE_GET_VPD_DATA 0x5B @@ -1479,6 +1481,26 @@ struct lpfc_mbx_query_fw_config { } rsp; }; +struct lpfc_mbx_set_beacon_config { + struct mbox_header header; + uint32_t word4; +#define lpfc_mbx_set_beacon_port_num_SHIFT 0 +#define lpfc_mbx_set_beacon_port_num_MASK 0x0000003F +#define lpfc_mbx_set_beacon_port_num_WORD word4 +#define lpfc_mbx_set_beacon_port_type_SHIFT 6 +#define lpfc_mbx_set_beacon_port_type_MASK 0x00000003 +#define lpfc_mbx_set_beacon_port_type_WORD word4 +#define lpfc_mbx_set_beacon_state_SHIFT 8 +#define lpfc_mbx_set_beacon_state_MASK 0x000000FF +#define lpfc_mbx_set_beacon_state_WORD word4 +#define lpfc_mbx_set_beacon_duration_SHIFT 16 +#define lpfc_mbx_set_beacon_duration_MASK 0x000000FF +#define lpfc_mbx_set_beacon_duration_WORD word4 +#define lpfc_mbx_set_beacon_status_duration_SHIFT 24 +#define lpfc_mbx_set_beacon_status_duration_MASK 0x000000FF +#define lpfc_mbx_set_beacon_status_duration_WORD word4 +}; + struct lpfc_id_range { uint32_t word5; #define lpfc_mbx_rsrc_id_word4_0_SHIFT 0 @@ -3021,6 +3043,7 @@ struct lpfc_mqe { struct lpfc_mbx_request_features req_ftrs; struct lpfc_mbx_post_hdr_tmpl hdr_tmpl; struct lpfc_mbx_query_fw_config query_fw_cfg; + struct lpfc_mbx_set_beacon_config beacon_config; struct lpfc_mbx_supp_pages supp_pages; struct lpfc_mbx_pc_sli4_params sli4_params; struct lpfc_mbx_get_sli4_parameters get_sli4_parameters; @@ -3041,8 +3064,8 @@ struct lpfc_mcqe { #define lpfc_mcqe_status_MASK 0x0000FFFF #define lpfc_mcqe_status_WORD word0 #define lpfc_mcqe_ext_status_SHIFT 16 -#define lpfc_mcqe_ext_status_MASK 0x0000FFFF -#define lpfc_mcqe_ext_status_WORD word0 +#define lpfc_mcqe_ext_status_MASK 0x0000FFFF +#define lpfc_mcqe_ext_status_WORD word0 uint32_t mcqe_tag0; uint32_t mcqe_tag1; uint32_t trailer; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index e8c8c1e..15825f6 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -7500,6 +7500,8 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba) mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; + phba->sli4_hba.physical_port = + mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 6eca3b8..2ce6cb5 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -602,6 +602,7 @@ struct lpfc_sli4_hba { struct lpfc_iov iov; spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */ spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */ + uint32_t physical_port; /* CPU to vector mapping information */ struct lpfc_vector_map_info *cpu_map; @@ -651,6 +652,16 @@ struct lpfc_rsrc_blks { uint16_t rsrc_used; }; +struct lpfc_lcb_context { + uint8_t sub_command; + uint8_t type; + uint8_t frequency; + uint16_t ox_id; + uint16_t rx_id; + struct lpfc_nodelist *ndlp; +}; + + /* * SLI4 specific function prototypes */