diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_mbox.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_mbox.c | 624 |
1 files changed, 520 insertions, 104 deletions
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index 7a9be4c5b7c..7465fe746fe 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2007 Emulex. All rights reserved. * + * 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 * @@ -30,6 +30,7 @@ #include "lpfc_hw.h" #include "lpfc_sli.h" +#include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" @@ -37,10 +38,20 @@ #include "lpfc_crtn.h" #include "lpfc_compat.h" -/**********************************************/ - -/* mailbox command */ -/**********************************************/ +/** + * 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) { @@ -65,10 +76,17 @@ lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset) return; } -/**********************************************/ -/* lpfc_read_nv Issue a READ NVPARAM */ -/* mailbox command */ -/**********************************************/ +/** + * 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) { @@ -81,10 +99,19 @@ lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) return; } -/**********************************************/ -/* lpfc_config_async Issue a */ -/* MBX_ASYNC_EVT_ENABLE mailbox command */ -/**********************************************/ +/** + * 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) @@ -99,10 +126,19 @@ lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, return; } -/**********************************************/ -/* lpfc_heart_beat Issue a HEART_BEAT */ -/* mailbox command */ -/**********************************************/ +/** + * 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) { @@ -115,10 +151,26 @@ lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) return; } -/**********************************************/ -/* lpfc_read_la Issue a READ LA */ -/* mailbox command */ -/**********************************************/ +/** + * 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) { @@ -143,10 +195,21 @@ lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp) return (0); } -/**********************************************/ -/* lpfc_clear_la Issue a CLEAR LA */ -/* mailbox command */ -/**********************************************/ +/** + * 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) { @@ -161,10 +224,20 @@ lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) return; } -/**************************************************/ -/* lpfc_config_link Issue a CONFIG LINK */ -/* mailbox command */ -/**************************************************/ +/** + * 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) { @@ -199,10 +272,98 @@ lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) return; } -/**********************************************/ -/* lpfc_init_link Issue an INIT LINK */ -/* mailbox command */ -/**********************************************/ +/** + * 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) @@ -269,10 +430,27 @@ lpfc_init_link(struct lpfc_hba * phba, return; } -/**********************************************/ -/* lpfc_read_sparam Issue a READ SPARAM */ -/* mailbox command */ -/**********************************************/ +/** + * 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) { @@ -312,10 +490,21 @@ lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi) return (0); } -/********************************************/ -/* lpfc_unreg_did Issue a UNREG_DID */ -/* mailbox command */ -/********************************************/ +/** + * 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) @@ -333,10 +522,19 @@ lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did, return; } -/**********************************************/ -/* lpfc_read_nv Issue a READ CONFIG */ -/* mailbox command */ -/**********************************************/ +/** + * 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) { @@ -350,10 +548,18 @@ lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) return; } -/*************************************************/ -/* lpfc_read_lnk_stat Issue a READ LINK STATUS */ -/* mailbox command */ -/*************************************************/ +/** + * 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) { @@ -367,10 +573,30 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) return; } -/********************************************/ -/* lpfc_reg_login Issue a REG_LOGIN */ -/* mailbox command */ -/********************************************/ +/** + * 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) @@ -418,10 +644,20 @@ lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did, return (0); } -/**********************************************/ -/* lpfc_unreg_login Issue a UNREG_LOGIN */ -/* mailbox command */ -/**********************************************/ +/** + * 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) @@ -440,10 +676,21 @@ lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi, return; } -/**************************************************/ -/* lpfc_reg_vpi Issue a REG_VPI */ -/* mailbox command */ -/**************************************************/ +/** + * 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) @@ -461,10 +708,22 @@ lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid, } -/**************************************************/ -/* lpfc_unreg_vpi Issue a UNREG_VNPI */ -/* mailbox command */ -/**************************************************/ +/** + * 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) { @@ -479,12 +738,19 @@ lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb) } +/** + * 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->slim2p->pcb; + PCB_t *pcbp = phba->pcb; dma_addr_t pdma_addr; uint32_t offset; uint32_t iocbCnt = 0; @@ -513,29 +779,43 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba) continue; } /* Command ring setup for ring */ - pring->cmdringaddr = (void *) &phba->slim2p->IOCBs[iocbCnt]; + pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt]; pcbp->rdsc[i].cmdEntries = pring->numCiocb; - offset = (uint8_t *) &phba->slim2p->IOCBs[iocbCnt] - - (uint8_t *) phba->slim2p; - pdma_addr = phba->slim2p_mapping + offset; + 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->slim2p->IOCBs[iocbCnt]; + pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt]; pcbp->rdsc[i].rspEntries = pring->numRiocb; - offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] - - (uint8_t *)phba->slim2p; - pdma_addr = phba->slim2p_mapping + offset; + 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) { @@ -548,6 +828,16 @@ lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 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) @@ -557,6 +847,16 @@ lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb, 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) @@ -569,6 +869,17 @@ lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb, 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) @@ -581,6 +892,20 @@ lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb, 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, @@ -641,8 +966,23 @@ lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id, 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) { @@ -684,6 +1024,20 @@ lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb) 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) { @@ -702,8 +1056,8 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) mb->un.varCfgPort.pcbLen = sizeof(PCB_t); - offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p; - pdma_addr = phba->slim2p_mapping + offset; + 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); @@ -711,12 +1065,13 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 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; - phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; } else mb->un.varCfgPort.max_vpi = phba->max_vpi = 0; } else @@ -724,16 +1079,15 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) mb->un.varCfgPort.sli_mode = phba->sli_rev; /* Now setup pcb */ - phba->slim2p->pcb.type = TYPE_NATIVE_SLI2; - phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2; + phba->pcb->type = TYPE_NATIVE_SLI2; + phba->pcb->feature = FEATURE_INITIAL_SLI2; /* Setup Mailbox pointers */ - phba->slim2p->pcb.mailBoxSize = offsetof(MAILBOX_t, us) + - sizeof(struct sli2_desc); - offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p; - pdma_addr = phba->slim2p_mapping + offset; - phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr); - phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr); + 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. @@ -794,13 +1148,13 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) } /* mask off BAR0's flag bits 0 - 3 */ - phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) + - (void __iomem *) phba->host_gp - + 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->slim2p->pcb.hgpAddrHigh = bar_high; + phba->pcb->hgpAddrHigh = bar_high; else - phba->slim2p->pcb.hgpAddrHigh = 0; + phba->pcb->hgpAddrHigh = 0; /* write HGP data to SLIM at the required longword offset */ memset(&hgp, 0, sizeof(struct lpfc_hgp)); @@ -810,17 +1164,19 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) } /* Setup Port Group ring pointer */ - if (phba->sli_rev == 3) - pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s3_pgp.port - - (uint8_t *)phba->slim2p; - else - pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port - - (uint8_t *)phba->slim2p; - - pdma_addr = phba->slim2p_mapping + pgp_offset; - phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr); - phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr); - phba->hbq_get = &phba->slim2p->mbx.us.s3_pgp.hbq_get[0]; + 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); @@ -835,10 +1191,24 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) } /* Swap PCB if needed */ - lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb, - sizeof(PCB_t)); + 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) { @@ -850,6 +1220,16 @@ lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 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) { @@ -864,6 +1244,20 @@ lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) 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) { @@ -877,6 +1271,17 @@ lpfc_mbox_get(struct lpfc_hba * phba) 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) { @@ -887,6 +1292,17 @@ lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) 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) { |