| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.emulex.com * |
| * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| * * |
| * This program is free software; you can redistribute it and/or * |
| * modify it under the terms of version 2 of the GNU General * |
| * Public License as published by the Free Software Foundation. * |
| * This program is distributed in the hope that it will be useful. * |
| * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| * more details, a copy of which can be found in the file COPYING * |
| * included with this package. * |
| *******************************************************************/ |
| |
| #include <linux/blkdev.h> |
| #include <linux/pci.h> |
| #include <linux/interrupt.h> |
| |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_transport_fc.h> |
| |
| #include <scsi/scsi.h> |
| |
| #include "lpfc_hw.h" |
| #include "lpfc_sli.h" |
| #include "lpfc_nl.h" |
| #include "lpfc_disc.h" |
| #include "lpfc_scsi.h" |
| #include "lpfc.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_compat.h" |
| |
| /** |
| * lpfc_dump_mem: Prepare a mailbox command for retrieving HBA's VPD memory. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * @offset: offset for dumping VPD memory mailbox command. |
| * |
| * The dump mailbox command provides a method for the device driver to obtain |
| * various types of information from the HBA device. |
| * |
| * This routine prepares the mailbox command for dumping HBA Vital Product |
| * Data (VPD) memory. This mailbox command is to be used for retrieving a |
| * portion (DMP_RSP_SIZE bytes) of a HBA's VPD from the HBA at an address |
| * offset specified by the offset parameter. |
| **/ |
| void |
| lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset) |
| { |
| MAILBOX_t *mb; |
| void *ctx; |
| |
| mb = &pmb->mb; |
| ctx = pmb->context2; |
| |
| /* Setup to dump VPD region */ |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| mb->mbxCommand = MBX_DUMP_MEMORY; |
| mb->un.varDmp.cv = 1; |
| mb->un.varDmp.type = DMP_NV_PARAMS; |
| mb->un.varDmp.entry_index = offset; |
| mb->un.varDmp.region_id = DMP_REGION_VPD; |
| mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t)); |
| mb->un.varDmp.co = 0; |
| mb->un.varDmp.resp_offset = 0; |
| pmb->context2 = ctx; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_read_nv: Prepare a mailbox command for reading HBA's NVRAM param. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The read NVRAM mailbox command returns the HBA's non-volatile parameters |
| * that are used as defaults when the Fibre Channel link is brought on-line. |
| * |
| * This routine prepares the mailbox command for reading information stored |
| * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN. |
| **/ |
| void |
| lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| mb->mbxCommand = MBX_READ_NV; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_config_async: Prepare a mailbox command for enabling HBA async event. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * @ring: ring number for the asynchronous event to be configured. |
| * |
| * The asynchronous event enable mailbox command is used to enable the |
| * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and |
| * specifies the default ring to which events are posted. |
| * |
| * This routine prepares the mailbox command for enabling HBA asynchronous |
| * event support on a IOCB ring. |
| **/ |
| void |
| lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, |
| uint32_t ring) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| mb->mbxCommand = MBX_ASYNCEVT_ENABLE; |
| mb->un.varCfgAsyncEvent.ring = ring; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_heart_beat: Prepare a mailbox command for heart beat. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The heart beat mailbox command is used to detect an unresponsive HBA, which |
| * is defined as any device where no error attention is sent and both mailbox |
| * and rings are not processed. |
| * |
| * This routine prepares the mailbox command for issuing a heart beat in the |
| * form of mailbox command to the HBA. The timely completion of the heart |
| * beat mailbox command indicates the health of the HBA. |
| **/ |
| void |
| lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| mb->mbxCommand = MBX_HEARTBEAT; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_read_la: Prepare a mailbox command for reading HBA link attention. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * @mp: DMA buffer memory for reading the link attention information into. |
| * |
| * The read link attention mailbox command is issued to read the Link Event |
| * Attention information indicated by the HBA port when the Link Event bit |
| * of the Host Attention (HSTATT) register is set to 1. A Link Event |
| * Attention occurs based on an exception detected at the Fibre Channel link |
| * interface. |
| * |
| * This routine prepares the mailbox command for reading HBA link attention |
| * information. A DMA memory has been set aside and address passed to the |
| * HBA through @mp for the HBA to DMA link attention information into the |
| * memory as part of the execution of the mailbox command. |
| * |
| * Return codes |
| * 0 - Success (currently always return 0) |
| **/ |
| int |
| lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp) |
| { |
| MAILBOX_t *mb; |
| struct lpfc_sli *psli; |
| |
| psli = &phba->sli; |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| INIT_LIST_HEAD(&mp->list); |
| mb->mbxCommand = MBX_READ_LA64; |
| mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128; |
| mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys); |
| mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys); |
| |
| /* Save address for later completion and set the owner to host so that |
| * the FW knows this mailbox is available for processing. |
| */ |
| pmb->context1 = (uint8_t *) mp; |
| mb->mbxOwner = OWN_HOST; |
| return (0); |
| } |
| |
| /** |
| * lpfc_clear_la: Prepare a mailbox command for clearing HBA link attention. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The clear link attention mailbox command is issued to clear the link event |
| * attention condition indicated by the Link Event bit of the Host Attention |
| * (HSTATT) register. The link event attention condition is cleared only if |
| * the event tag specified matches that of the current link event counter. |
| * The current event tag is read using the read link attention event mailbox |
| * command. |
| * |
| * This routine prepares the mailbox command for clearing HBA link attention |
| * information. |
| **/ |
| void |
| lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->un.varClearLA.eventTag = phba->fc_eventTag; |
| mb->mbxCommand = MBX_CLEAR_LA; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_config_link: Prepare a mailbox command for configuring link on a HBA. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The configure link mailbox command is used before the initialize link |
| * mailbox command to override default value and to configure link-oriented |
| * parameters such as DID address and various timers. Typically, this |
| * command would be used after an F_Port login to set the returned DID address |
| * and the fabric timeout values. This command is not valid before a configure |
| * port command has configured the HBA port. |
| * |
| * This routine prepares the mailbox command for configuring link on a HBA. |
| **/ |
| void |
| lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| MAILBOX_t *mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| /* NEW_FEATURE |
| * SLI-2, Coalescing Response Feature. |
| */ |
| if (phba->cfg_cr_delay) { |
| mb->un.varCfgLnk.cr = 1; |
| mb->un.varCfgLnk.ci = 1; |
| mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay; |
| mb->un.varCfgLnk.cr_count = phba->cfg_cr_count; |
| } |
| |
| mb->un.varCfgLnk.myId = vport->fc_myDID; |
| mb->un.varCfgLnk.edtov = phba->fc_edtov; |
| mb->un.varCfgLnk.arbtov = phba->fc_arbtov; |
| mb->un.varCfgLnk.ratov = phba->fc_ratov; |
| mb->un.varCfgLnk.rttov = phba->fc_rttov; |
| mb->un.varCfgLnk.altov = phba->fc_altov; |
| mb->un.varCfgLnk.crtov = phba->fc_crtov; |
| mb->un.varCfgLnk.citov = phba->fc_citov; |
| |
| if (phba->cfg_ack0) |
| mb->un.varCfgLnk.ack0_enable = 1; |
| |
| mb->mbxCommand = MBX_CONFIG_LINK; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_config_msi: Prepare a mailbox command for configuring msi-x. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The configure MSI-X mailbox command is used to configure the HBA's SLI-3 |
| * MSI-X multi-message interrupt vector association to interrupt attention |
| * conditions. |
| * |
| * Return codes |
| * 0 - Success |
| * -EINVAL - Failure |
| **/ |
| int |
| lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->mb; |
| uint32_t attentionConditions[2]; |
| |
| /* Sanity check */ |
| if (phba->cfg_use_msi != 2) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0475 Not configured for supporting MSI-X " |
| "cfg_use_msi: 0x%x\n", phba->cfg_use_msi); |
| return -EINVAL; |
| } |
| |
| if (phba->sli_rev < 3) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0476 HBA not supporting SLI-3 or later " |
| "SLI Revision: 0x%x\n", phba->sli_rev); |
| return -EINVAL; |
| } |
| |
| /* Clear mailbox command fields */ |
| memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); |
| |
| /* |
| * SLI-3, Message Signaled Interrupt Fearure. |
| */ |
| |
| /* Multi-message attention configuration */ |
| attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT | |
| HA_LATT | HA_MBATT); |
| attentionConditions[1] = 0; |
| |
| mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0]; |
| mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1]; |
| |
| /* |
| * Set up message number to HA bit association |
| */ |
| #ifdef __BIG_ENDIAN_BITFIELD |
| /* RA0 (FCP Ring) */ |
| mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1; |
| /* RA1 (Other Protocol Extra Ring) */ |
| mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1; |
| #else /* __LITTLE_ENDIAN_BITFIELD */ |
| /* RA0 (FCP Ring) */ |
| mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1; |
| /* RA1 (Other Protocol Extra Ring) */ |
| mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1; |
| #endif |
| /* Multi-message interrupt autoclear configuration*/ |
| mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0]; |
| mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1]; |
| |
| /* For now, HBA autoclear does not work reliably, disable it */ |
| mb->un.varCfgMSI.autoClearHA[0] = 0; |
| mb->un.varCfgMSI.autoClearHA[1] = 0; |
| |
| /* Set command and owner bit */ |
| mb->mbxCommand = MBX_CONFIG_MSI; |
| mb->mbxOwner = OWN_HOST; |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_init_link: Prepare a mailbox command for initialize link on a HBA. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * @topology: the link topology for the link to be initialized to. |
| * @linkspeed: the link speed for the link to be initialized to. |
| * |
| * The initialize link mailbox command is used to initialize the Fibre |
| * Channel link. This command must follow a configure port command that |
| * establishes the mode of operation. |
| * |
| * This routine prepares the mailbox command for initializing link on a HBA |
| * with the specified link topology and speed. |
| **/ |
| void |
| lpfc_init_link(struct lpfc_hba * phba, |
| LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed) |
| { |
| lpfc_vpd_t *vpd; |
| struct lpfc_sli *psli; |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| psli = &phba->sli; |
| switch (topology) { |
| case FLAGS_TOPOLOGY_MODE_LOOP_PT: |
| mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; |
| mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; |
| break; |
| case FLAGS_TOPOLOGY_MODE_PT_PT: |
| mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; |
| break; |
| case FLAGS_TOPOLOGY_MODE_LOOP: |
| mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; |
| break; |
| case FLAGS_TOPOLOGY_MODE_PT_LOOP: |
| mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; |
| mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; |
| break; |
| case FLAGS_LOCAL_LB: |
| mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB; |
| break; |
| } |
| |
| /* Enable asynchronous ABTS responses from firmware */ |
| mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT; |
| |
| /* NEW_FEATURE |
| * Setting up the link speed |
| */ |
| vpd = &phba->vpd; |
| if (vpd->rev.feaLevelHigh >= 0x02){ |
| switch(linkspeed){ |
| case LINK_SPEED_1G: |
| case LINK_SPEED_2G: |
| case LINK_SPEED_4G: |
| case LINK_SPEED_8G: |
| mb->un.varInitLnk.link_flags |= |
| FLAGS_LINK_SPEED; |
| mb->un.varInitLnk.link_speed = linkspeed; |
| break; |
| case LINK_SPEED_AUTO: |
| default: |
| mb->un.varInitLnk.link_speed = |
| LINK_SPEED_AUTO; |
| break; |
| } |
| |
| } |
| else |
| mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO; |
| |
| mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK; |
| mb->mbxOwner = OWN_HOST; |
| mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA; |
| return; |
| } |
| |
| /** |
| * lpfc_read_sparam: Prepare a mailbox command for reading HBA parameters. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * @vpi: virtual N_Port identifier. |
| * |
| * The read service parameter mailbox command is used to read the HBA port |
| * service parameters. The service parameters are read into the buffer |
| * specified directly by a BDE in the mailbox command. These service |
| * parameters may then be used to build the payload of an N_Port/F_POrt |
| * login request and reply (LOGI/ACC). |
| * |
| * This routine prepares the mailbox command for reading HBA port service |
| * parameters. The DMA memory is allocated in this function and the addresses |
| * are populated into the mailbox command for the HBA to DMA the service |
| * parameters into. |
| * |
| * Return codes |
| * 0 - Success |
| * 1 - DMA memory allocation failed |
| **/ |
| int |
| lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi) |
| { |
| struct lpfc_dmabuf *mp; |
| MAILBOX_t *mb; |
| struct lpfc_sli *psli; |
| |
| psli = &phba->sli; |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->mbxOwner = OWN_HOST; |
| |
| /* Get a buffer to hold the HBAs Service Parameters */ |
| |
| mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); |
| if (mp) |
| mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); |
| if (!mp || !mp->virt) { |
| kfree(mp); |
| mb->mbxCommand = MBX_READ_SPARM64; |
| /* READ_SPARAM: no buffers */ |
| lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| "0301 READ_SPARAM: no buffers\n"); |
| return (1); |
| } |
| INIT_LIST_HEAD(&mp->list); |
| mb->mbxCommand = MBX_READ_SPARM64; |
| mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); |
| mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys); |
| mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys); |
| mb->un.varRdSparm.vpi = vpi; |
| |
| /* save address for completion */ |
| pmb->context1 = mp; |
| |
| return (0); |
| } |
| |
| /** |
| * lpfc_unreg_did: Prepare a mailbox command for unregistering DID. |
| * @phba: pointer to lpfc hba data structure. |
| * @vpi: virtual N_Port identifier. |
| * @did: remote port identifier. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The unregister DID mailbox command is used to unregister an N_Port/F_Port |
| * login for an unknown RPI by specifying the DID of a remote port. This |
| * command frees an RPI context in the HBA port. This has the effect of |
| * performing an implicit N_Port/F_Port logout. |
| * |
| * This routine prepares the mailbox command for unregistering a remote |
| * N_Port/F_Port (DID) login. |
| **/ |
| void |
| lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did, |
| LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->un.varUnregDID.did = did; |
| mb->un.varUnregDID.vpi = vpi; |
| |
| mb->mbxCommand = MBX_UNREG_D_ID; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_read_config: Prepare a mailbox command for reading HBA configuration. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The read configuration mailbox command is used to read the HBA port |
| * configuration parameters. This mailbox command provides a method for |
| * seeing any parameters that may have changed via various configuration |
| * mailbox commands. |
| * |
| * This routine prepares the mailbox command for reading out HBA configuration |
| * parameters. |
| **/ |
| void |
| lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->mbxCommand = MBX_READ_CONFIG; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_read_lnk_stat: Prepare a mailbox command for reading HBA link stats. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The read link status mailbox command is used to read the link status from |
| * the HBA. Link status includes all link-related error counters. These |
| * counters are maintained by the HBA and originated in the link hardware |
| * unit. Note that all of these counters wrap. |
| * |
| * This routine prepares the mailbox command for reading out HBA link status. |
| **/ |
| void |
| lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->mbxCommand = MBX_READ_LNK_STAT; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_reg_login: Prepare a mailbox command for registering remote login. |
| * @phba: pointer to lpfc hba data structure. |
| * @vpi: virtual N_Port identifier. |
| * @did: remote port identifier. |
| * @param: pointer to memory holding the server parameters. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * @flag: action flag to be passed back for the complete function. |
| * |
| * The registration login mailbox command is used to register an N_Port or |
| * F_Port login. This registration allows the HBA to cache the remote N_Port |
| * service parameters internally and thereby make the appropriate FC-2 |
| * decisions. The remote port service parameters are handed off by the driver |
| * to the HBA using a descriptor entry that directly identifies a buffer in |
| * host memory. In exchange, the HBA returns an RPI identifier. |
| * |
| * This routine prepares the mailbox command for registering remote port login. |
| * The function allocates DMA buffer for passing the service parameters to the |
| * HBA with the mailbox command. |
| * |
| * Return codes |
| * 0 - Success |
| * 1 - DMA memory allocation failed |
| **/ |
| int |
| lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did, |
| uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag) |
| { |
| MAILBOX_t *mb = &pmb->mb; |
| uint8_t *sparam; |
| struct lpfc_dmabuf *mp; |
| |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->un.varRegLogin.rpi = 0; |
| mb->un.varRegLogin.vpi = vpi; |
| mb->un.varRegLogin.did = did; |
| mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */ |
| |
| mb->mbxOwner = OWN_HOST; |
| |
| /* Get a buffer to hold NPorts Service Parameters */ |
| mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); |
| if (mp) |
| mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); |
| if (!mp || !mp->virt) { |
| kfree(mp); |
| mb->mbxCommand = MBX_REG_LOGIN64; |
| /* REG_LOGIN: no buffers */ |
| lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| "0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, " |
| "flag x%x\n", vpi, did, flag); |
| return (1); |
| } |
| INIT_LIST_HEAD(&mp->list); |
| sparam = mp->virt; |
| |
| /* Copy param's into a new buffer */ |
| memcpy(sparam, param, sizeof (struct serv_parm)); |
| |
| /* save address for completion */ |
| pmb->context1 = (uint8_t *) mp; |
| |
| mb->mbxCommand = MBX_REG_LOGIN64; |
| mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); |
| mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys); |
| mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys); |
| |
| return (0); |
| } |
| |
| /** |
| * lpfc_unreg_login: Prepare a mailbox command for unregistering remote login. |
| * @phba: pointer to lpfc hba data structure. |
| * @vpi: virtual N_Port identifier. |
| * @rpi: remote port identifier |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The unregistration login mailbox command is used to unregister an N_Port |
| * or F_Port login. This command frees an RPI context in the HBA. It has the |
| * effect of performing an implicit N_Port/F_Port logout. |
| * |
| * This routine prepares the mailbox command for unregistering remote port |
| * login. |
| **/ |
| void |
| lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi, |
| LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb; |
| |
| mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->un.varUnregLogin.rpi = (uint16_t) rpi; |
| mb->un.varUnregLogin.rsvd1 = 0; |
| mb->un.varUnregLogin.vpi = vpi; |
| |
| mb->mbxCommand = MBX_UNREG_LOGIN; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_reg_vpi: Prepare a mailbox command for registering vport identifier. |
| * @phba: pointer to lpfc hba data structure. |
| * @vpi: virtual N_Port identifier. |
| * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port). |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The registration vport identifier mailbox command is used to activate a |
| * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the |
| * N_Port_ID against the information in the selected virtual N_Port context |
| * block and marks it active to allow normal processing of IOCB commands and |
| * received unsolicited exchanges. |
| * |
| * This routine prepares the mailbox command for registering a virtual N_Port. |
| **/ |
| void |
| lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid, |
| LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->mb; |
| |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->un.varRegVpi.vpi = vpi; |
| mb->un.varRegVpi.sid = sid; |
| |
| mb->mbxCommand = MBX_REG_VPI; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| |
| } |
| |
| /** |
| * lpfc_unreg_vpi: Prepare a mailbox command for unregistering vport id. |
| * @phba: pointer to lpfc hba data structure. |
| * @vpi: virtual N_Port identifier. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The unregistration vport identifier mailbox command is used to inactivate |
| * a virtual N_Port. The driver must have logged out and unregistered all |
| * remote N_Ports to abort any activity on the virtual N_Port. The HBA will |
| * unregisters any default RPIs associated with the specified vpi, aborting |
| * any active exchanges. The HBA will post the mailbox response after making |
| * the virtual N_Port inactive. |
| * |
| * This routine prepares the mailbox command for unregistering a virtual |
| * N_Port. |
| **/ |
| void |
| lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->un.varUnregVpi.vpi = vpi; |
| |
| mb->mbxCommand = MBX_UNREG_VPI; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| |
| } |
| |
| /** |
| * lpfc_config_pcb_setup: Set up IOCB rings in the Port Control Block (PCB) |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine sets up and initializes the IOCB rings in the Port Control |
| * Block (PCB). |
| **/ |
| static void |
| lpfc_config_pcb_setup(struct lpfc_hba * phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| PCB_t *pcbp = phba->pcb; |
| dma_addr_t pdma_addr; |
| uint32_t offset; |
| uint32_t iocbCnt = 0; |
| int i; |
| |
| pcbp->maxRing = (psli->num_rings - 1); |
| |
| for (i = 0; i < psli->num_rings; i++) { |
| pring = &psli->ring[i]; |
| |
| pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE: |
| SLI2_IOCB_CMD_SIZE; |
| pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE: |
| SLI2_IOCB_RSP_SIZE; |
| /* A ring MUST have both cmd and rsp entries defined to be |
| valid */ |
| if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) { |
| pcbp->rdsc[i].cmdEntries = 0; |
| pcbp->rdsc[i].rspEntries = 0; |
| pcbp->rdsc[i].cmdAddrHigh = 0; |
| pcbp->rdsc[i].rspAddrHigh = 0; |
| pcbp->rdsc[i].cmdAddrLow = 0; |
| pcbp->rdsc[i].rspAddrLow = 0; |
| pring->cmdringaddr = NULL; |
| pring->rspringaddr = NULL; |
| continue; |
| } |
| /* Command ring setup for ring */ |
| pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt]; |
| pcbp->rdsc[i].cmdEntries = pring->numCiocb; |
| |
| offset = (uint8_t *) &phba->IOCBs[iocbCnt] - |
| (uint8_t *) phba->slim2p.virt; |
| pdma_addr = phba->slim2p.phys + offset; |
| pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr); |
| pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr); |
| iocbCnt += pring->numCiocb; |
| |
| /* Response ring setup for ring */ |
| pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt]; |
| |
| pcbp->rdsc[i].rspEntries = pring->numRiocb; |
| offset = (uint8_t *)&phba->IOCBs[iocbCnt] - |
| (uint8_t *)phba->slim2p.virt; |
| pdma_addr = phba->slim2p.phys + offset; |
| pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr); |
| pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr); |
| iocbCnt += pring->numRiocb; |
| } |
| } |
| |
| /** |
| * lpfc_read_rev: Prepare a mailbox command for reading HBA revision. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The read revision mailbox command is used to read the revision levels of |
| * the HBA components. These components include hardware units, resident |
| * firmware, and available firmware. HBAs that supports SLI-3 mode of |
| * operation provide different response information depending on the version |
| * requested by the driver. |
| * |
| * This routine prepares the mailbox command for reading HBA revision |
| * information. |
| **/ |
| void |
| lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb = &pmb->mb; |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| mb->un.varRdRev.cv = 1; |
| mb->un.varRdRev.v3req = 1; /* Request SLI3 info */ |
| mb->mbxCommand = MBX_READ_REV; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_build_hbq_profile2: Set up the HBQ Selection Profile 2. |
| * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. |
| * @hbq_desc: pointer to the HBQ selection profile descriptor. |
| * |
| * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA |
| * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs |
| * the Sequence Length Test using the fields in the Selection Profile 2 |
| * extension in words 20:31. |
| **/ |
| static void |
| lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb, |
| struct lpfc_hbq_init *hbq_desc) |
| { |
| hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt; |
| hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen; |
| hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff; |
| } |
| |
| /** |
| * lpfc_build_hbq_profile3: Set up the HBQ Selection Profile 3. |
| * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. |
| * @hbq_desc: pointer to the HBQ selection profile descriptor. |
| * |
| * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA |
| * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs |
| * the Sequence Length Test and Byte Field Test using the fields in the |
| * Selection Profile 3 extension in words 20:31. |
| **/ |
| static void |
| lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb, |
| struct lpfc_hbq_init *hbq_desc) |
| { |
| hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt; |
| hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen; |
| hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff; |
| hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff; |
| memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch, |
| sizeof(hbqmb->profiles.profile3.cmdmatch)); |
| } |
| |
| /** |
| * lpfc_build_hbq_profile5: Set up the HBQ Selection Profile 5. |
| * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. |
| * @hbq_desc: pointer to the HBQ selection profile descriptor. |
| * |
| * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The |
| * HBA tests the initial frame of an incoming sequence using the frame's |
| * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test |
| * and Byte Field Test using the fields in the Selection Profile 5 extension |
| * words 20:31. |
| **/ |
| static void |
| lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb, |
| struct lpfc_hbq_init *hbq_desc) |
| { |
| hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt; |
| hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen; |
| hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff; |
| hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff; |
| memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch, |
| sizeof(hbqmb->profiles.profile5.cmdmatch)); |
| } |
| |
| /** |
| * lpfc_config_hbq: Prepare a mailbox command for configuring an HBQ. |
| * @phba: pointer to lpfc hba data structure. |
| * @id: HBQ identifier. |
| * @hbq_desc: pointer to the HBA descriptor data structure. |
| * @hbq_entry_index: index of the HBQ entry data structures. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The configure HBQ (Host Buffer Queue) mailbox command is used to configure |
| * an HBQ. The configuration binds events that require buffers to a particular |
| * ring and HBQ based on a selection profile. |
| * |
| * This routine prepares the mailbox command for configuring an HBQ. |
| **/ |
| void |
| lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id, |
| struct lpfc_hbq_init *hbq_desc, |
| uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb) |
| { |
| int i; |
| MAILBOX_t *mb = &pmb->mb; |
| struct config_hbq_var *hbqmb = &mb->un.varCfgHbq; |
| |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| hbqmb->hbqId = id; |
| hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */ |
| hbqmb->recvNotify = hbq_desc->rn; /* Receive |
| * Notification */ |
| hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks |
| * # in words 0-19 */ |
| hbqmb->profile = hbq_desc->profile; /* Selection profile: |
| * 0 = all, |
| * 7 = logentry */ |
| hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring |
| * e.g. Ring0=b0001, |
| * ring2=b0100 */ |
| hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4 |
| * or 5 */ |
| hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this |
| * HBQ will be used |
| * for LogEntry |
| * buffers */ |
| hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) + |
| hbq_entry_index * sizeof(struct lpfc_hbq_entry); |
| hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys); |
| |
| mb->mbxCommand = MBX_CONFIG_HBQ; |
| mb->mbxOwner = OWN_HOST; |
| |
| /* Copy info for profiles 2,3,5. Other |
| * profiles this area is reserved |
| */ |
| if (hbq_desc->profile == 2) |
| lpfc_build_hbq_profile2(hbqmb, hbq_desc); |
| else if (hbq_desc->profile == 3) |
| lpfc_build_hbq_profile3(hbqmb, hbq_desc); |
| else if (hbq_desc->profile == 5) |
| lpfc_build_hbq_profile5(hbqmb, hbq_desc); |
| |
| /* Return if no rctl / type masks for this HBQ */ |
| if (!hbq_desc->mask_count) |
| return; |
| |
| /* Otherwise we setup specific rctl / type masks for this HBQ */ |
| for (i = 0; i < hbq_desc->mask_count; i++) { |
| hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch; |
| hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask; |
| hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch; |
| hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask; |
| } |
| |
| return; |
| } |
| |
| /** |
| * lpfc_config_ring: Prepare a mailbox command for configuring an IOCB ring. |
| * @phba: pointer to lpfc hba data structure. |
| * @ring: |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The configure ring mailbox command is used to configure an IOCB ring. This |
| * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the |
| * ring. This is used to map incoming sequences to a particular ring whose |
| * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not |
| * attempt to configure a ring whose number is greater than the number |
| * specified in the Port Control Block (PCB). It is an error to issue the |
| * configure ring command more than once with the same ring number. The HBA |
| * returns an error if the driver attempts this. |
| * |
| * This routine prepares the mailbox command for configuring IOCB ring. |
| **/ |
| void |
| lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb) |
| { |
| int i; |
| MAILBOX_t *mb = &pmb->mb; |
| struct lpfc_sli *psli; |
| struct lpfc_sli_ring *pring; |
| |
| memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| mb->un.varCfgRing.ring = ring; |
| mb->un.varCfgRing.maxOrigXchg = 0; |
| mb->un.varCfgRing.maxRespXchg = 0; |
| mb->un.varCfgRing.recvNotify = 1; |
| |
| psli = &phba->sli; |
| pring = &psli->ring[ring]; |
| mb->un.varCfgRing.numMask = pring->num_mask; |
| mb->mbxCommand = MBX_CONFIG_RING; |
| mb->mbxOwner = OWN_HOST; |
| |
| /* Is this ring configured for a specific profile */ |
| if (pring->prt[0].profile) { |
| mb->un.varCfgRing.profile = pring->prt[0].profile; |
| return; |
| } |
| |
| /* Otherwise we setup specific rctl / type masks for this ring */ |
| for (i = 0; i < pring->num_mask; i++) { |
| mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl; |
| if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ) |
| mb->un.varCfgRing.rrRegs[i].rmask = 0xff; |
| else |
| mb->un.varCfgRing.rrRegs[i].rmask = 0xfe; |
| mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type; |
| mb->un.varCfgRing.rrRegs[i].tmask = 0xff; |
| } |
| |
| return; |
| } |
| |
| /** |
| * lpfc_config_port: Prepare a mailbox command for configuring port. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The configure port mailbox command is used to identify the Port Control |
| * Block (PCB) in the driver memory. After this command is issued, the |
| * driver must not access the mailbox in the HBA without first resetting |
| * the HBA. The HBA may copy the PCB information to internal storage for |
| * subsequent use; the driver can not change the PCB information unless it |
| * resets the HBA. |
| * |
| * This routine prepares the mailbox command for configuring port. |
| **/ |
| void |
| lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr; |
| MAILBOX_t *mb = &pmb->mb; |
| dma_addr_t pdma_addr; |
| uint32_t bar_low, bar_high; |
| size_t offset; |
| struct lpfc_hgp hgp; |
| int i; |
| uint32_t pgp_offset; |
| |
| memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); |
| mb->mbxCommand = MBX_CONFIG_PORT; |
| mb->mbxOwner = OWN_HOST; |
| |
| mb->un.varCfgPort.pcbLen = sizeof(PCB_t); |
| |
| offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt; |
| pdma_addr = phba->slim2p.phys + offset; |
| mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr); |
| mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr); |
| |
| /* If HBA supports SLI=3 ask for it */ |
| |
| if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) { |
| mb->un.varCfgPort.cerbm = 1; /* Request HBQs */ |
| mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */ |
| mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */ |
| mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count(); |
| if (phba->max_vpi && phba->cfg_enable_npiv && |
| phba->vpd.sli3Feat.cmv) { |
| mb->un.varCfgPort.max_vpi = phba->max_vpi; |
| mb->un.varCfgPort.cmv = 1; |
| } else |
| mb->un.varCfgPort.max_vpi = phba->max_vpi = 0; |
| } else |
| phba->sli_rev = 2; |
| mb->un.varCfgPort.sli_mode = phba->sli_rev; |
| |
| /* Now setup pcb */ |
| phba->pcb->type = TYPE_NATIVE_SLI2; |
| phba->pcb->feature = FEATURE_INITIAL_SLI2; |
| |
| /* Setup Mailbox pointers */ |
| phba->pcb->mailBoxSize = sizeof(MAILBOX_t); |
| offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt; |
| pdma_addr = phba->slim2p.phys + offset; |
| phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr); |
| phba->pcb->mbAddrLow = putPaddrLow(pdma_addr); |
| |
| /* |
| * Setup Host Group ring pointer. |
| * |
| * For efficiency reasons, the ring get/put pointers can be |
| * placed in adapter memory (SLIM) rather than in host memory. |
| * This allows firmware to avoid PCI reads/writes when updating |
| * and checking pointers. |
| * |
| * The firmware recognizes the use of SLIM memory by comparing |
| * the address of the get/put pointers structure with that of |
| * the SLIM BAR (BAR0). |
| * |
| * Caution: be sure to use the PCI config space value of BAR0/BAR1 |
| * (the hardware's view of the base address), not the OS's |
| * value of pci_resource_start() as the OS value may be a cookie |
| * for ioremap/iomap. |
| */ |
| |
| |
| pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low); |
| pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high); |
| |
| /* |
| * Set up HGP - Port Memory |
| * |
| * The port expects the host get/put pointers to reside in memory |
| * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes) |
| * area of SLIM. In SLI-2 mode, there's an additional 16 reserved |
| * words (0x40 bytes). This area is not reserved if HBQs are |
| * configured in SLI-3. |
| * |
| * CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80 |
| * RR0Get 0xc4 0x84 |
| * CR1Put 0xc8 0x88 |
| * RR1Get 0xcc 0x8c |
| * CR2Put 0xd0 0x90 |
| * RR2Get 0xd4 0x94 |
| * CR3Put 0xd8 0x98 |
| * RR3Get 0xdc 0x9c |
| * |
| * Reserved 0xa0-0xbf |
| * If HBQs configured: |
| * HBQ 0 Put ptr 0xc0 |
| * HBQ 1 Put ptr 0xc4 |
| * HBQ 2 Put ptr 0xc8 |
| * ...... |
| * HBQ(M-1)Put Pointer 0xc0+(M-1)*4 |
| * |
| */ |
| |
| if (phba->sli_rev == 3) { |
| phba->host_gp = &mb_slim->us.s3.host[0]; |
| phba->hbq_put = &mb_slim->us.s3.hbq_put[0]; |
| } else { |
| phba->host_gp = &mb_slim->us.s2.host[0]; |
| phba->hbq_put = NULL; |
| } |
| |
| /* mask off BAR0's flag bits 0 - 3 */ |
| phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) + |
| (void __iomem *)phba->host_gp - |
| (void __iomem *)phba->MBslimaddr; |
| if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64) |
| phba->pcb->hgpAddrHigh = bar_high; |
| else |
| phba->pcb->hgpAddrHigh = 0; |
| /* write HGP data to SLIM at the required longword offset */ |
| memset(&hgp, 0, sizeof(struct lpfc_hgp)); |
| |
| for (i=0; i < phba->sli.num_rings; i++) { |
| lpfc_memcpy_to_slim(phba->host_gp + i, &hgp, |
| sizeof(*phba->host_gp)); |
| } |
| |
| /* Setup Port Group ring pointer */ |
| if (phba->sli3_options & LPFC_SLI3_INB_ENABLED) { |
| pgp_offset = offsetof(struct lpfc_sli2_slim, |
| mbx.us.s3_inb_pgp.port); |
| phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; |
| } else if (phba->sli_rev == 3) { |
| pgp_offset = offsetof(struct lpfc_sli2_slim, |
| mbx.us.s3_pgp.port); |
| phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; |
| } else |
| pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port); |
| pdma_addr = phba->slim2p.phys + pgp_offset; |
| phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr); |
| phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr); |
| |
| /* Use callback routine to setp rings in the pcb */ |
| lpfc_config_pcb_setup(phba); |
| |
| /* special handling for LC HBAs */ |
| if (lpfc_is_LC_HBA(phba->pcidev->device)) { |
| uint32_t hbainit[5]; |
| |
| lpfc_hba_init(phba, hbainit); |
| |
| memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20); |
| } |
| |
| /* Swap PCB if needed */ |
| lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t)); |
| } |
| |
| /** |
| * lpfc_kill_board: Prepare a mailbox command for killing board. |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * The kill board mailbox command is used to tell firmware to perform a |
| * graceful shutdown of a channel on a specified board to prepare for reset. |
| * When the kill board mailbox command is received, the ER3 bit is set to 1 |
| * in the Host Status register and the ER Attention bit is set to 1 in the |
| * Host Attention register of the HBA function that received the kill board |
| * command. |
| * |
| * This routine prepares the mailbox command for killing the board in |
| * preparation for a graceful shutdown. |
| **/ |
| void |
| lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| { |
| MAILBOX_t *mb = &pmb->mb; |
| |
| memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); |
| mb->mbxCommand = MBX_KILL_BOARD; |
| mb->mbxOwner = OWN_HOST; |
| return; |
| } |
| |
| /** |
| * lpfc_mbox_put: Put a mailbox cmd into the tail of driver's mailbox queue. |
| * @phba: pointer to lpfc hba data structure. |
| * @mbq: pointer to the driver internal queue element for mailbox command. |
| * |
| * Driver maintains a internal mailbox command queue implemented as a linked |
| * list. When a mailbox command is issued, it shall be put into the mailbox |
| * command queue such that they shall be processed orderly as HBA can process |
| * one mailbox command at a time. |
| **/ |
| void |
| lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) |
| { |
| struct lpfc_sli *psli; |
| |
| psli = &phba->sli; |
| |
| list_add_tail(&mbq->list, &psli->mboxq); |
| |
| psli->mboxq_cnt++; |
| |
| return; |
| } |
| |
| /** |
| * lpfc_mbox_get: Remove a mailbox cmd from the head of driver's mailbox queue. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * Driver maintains a internal mailbox command queue implemented as a linked |
| * list. When a mailbox command is issued, it shall be put into the mailbox |
| * command queue such that they shall be processed orderly as HBA can process |
| * one mailbox command at a time. After HBA finished processing a mailbox |
| * command, the driver will remove a pending mailbox command from the head of |
| * the mailbox command queue and send to the HBA for processing. |
| * |
| * Return codes |
| * pointer to the driver internal queue element for mailbox command. |
| **/ |
| LPFC_MBOXQ_t * |
| lpfc_mbox_get(struct lpfc_hba * phba) |
| { |
| LPFC_MBOXQ_t *mbq = NULL; |
| struct lpfc_sli *psli = &phba->sli; |
| |
| list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list); |
| if (mbq) |
| psli->mboxq_cnt--; |
| |
| return mbq; |
| } |
| |
| /** |
| * lpfc_mbox_cmpl_put: Put mailbox command into mailbox command complete list. |
| * @phba: pointer to lpfc hba data structure. |
| * @mbq: pointer to the driver internal queue element for mailbox command. |
| * |
| * This routine put the completed mailbox command into the mailbox command |
| * complete list. This routine is called from driver interrupt handler |
| * context.The mailbox complete list is used by the driver worker thread |
| * to process mailbox complete callback functions outside the driver interrupt |
| * handler. |
| **/ |
| void |
| lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) |
| { |
| /* This function expects to be called from interrupt context */ |
| spin_lock(&phba->hbalock); |
| list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl); |
| spin_unlock(&phba->hbalock); |
| return; |
| } |
| |
| /** |
| * lpfc_mbox_tmo_val: Retrieve mailbox command timeout value. |
| * @phba: pointer to lpfc hba data structure. |
| * @cmd: mailbox command code. |
| * |
| * This routine retrieves the proper timeout value according to the mailbox |
| * command code. |
| * |
| * Return codes |
| * Timeout value to be used for the given mailbox command |
| **/ |
| int |
| lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd) |
| { |
| switch (cmd) { |
| case MBX_WRITE_NV: /* 0x03 */ |
| case MBX_UPDATE_CFG: /* 0x1B */ |
| case MBX_DOWN_LOAD: /* 0x1C */ |
| case MBX_DEL_LD_ENTRY: /* 0x1D */ |
| case MBX_LOAD_AREA: /* 0x81 */ |
| case MBX_WRITE_WWN: /* 0x98 */ |
| case MBX_LOAD_EXP_ROM: /* 0x9C */ |
| return LPFC_MBOX_TMO_FLASH_CMD; |
| } |
| return LPFC_MBOX_TMO; |
| } |