/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term * * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.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. *
*******************************************************************/
/** * lpfc_mbox_rsrc_prep - Prepare a mailbox with DMA buffer memory. * @phba: pointer to lpfc hba data structure. * @mbox: pointer to the driver internal queue element for mailbox command. * * A mailbox command consists of the pool memory for the command, @mbox, and * one or more DMA buffers for the data transfer. This routine provides * a standard framework for allocating the dma buffer and assigning to the * @mbox. Callers should cleanup the mbox with a call to * lpfc_mbox_rsrc_cleanup. * * The lpfc_mbuf_alloc routine acquires the hbalock so the caller is * responsible to ensure the hbalock is released. Also note that the * driver design is a single dmabuf/mbuf per mbox in the ctx_buf. *
**/ int
lpfc_mbox_rsrc_prep(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{ struct lpfc_dmabuf *mp;
mp = kmalloc(sizeof(*mp), GFP_KERNEL); if (!mp) return -ENOMEM;
/* Initialization only. Driver does not use a list of dmabufs. */
INIT_LIST_HEAD(&mp->list);
mbox->ctx_buf = mp; return 0;
}
/** * lpfc_mbox_rsrc_cleanup - Free the mailbox DMA buffer and virtual memory. * @phba: pointer to lpfc hba data structure. * @mbox: pointer to the driver internal queue element for mailbox command. * @locked: value that indicates if the hbalock is held (1) or not (0). * * A mailbox command consists of the pool memory for the command, @mbox, and * possibly a DMA buffer for the data transfer. This routine provides * a standard framework for releasing any dma buffers and freeing all * memory resources in it as well as releasing the @mbox back to the @phba pool. * Callers should use this routine for cleanup for all mailboxes prepped with * lpfc_mbox_rsrc_prep. *
**/ void
lpfc_mbox_rsrc_cleanup(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox, enum lpfc_mbox_ctx locked)
{ struct lpfc_dmabuf *mp;
mp = mbox->ctx_buf;
mbox->ctx_buf = NULL;
/* Release the generic BPL buffer memory. */ if (mp) { if (locked == MBOX_THD_LOCKED)
__lpfc_mbuf_free(phba, mp->virt, mp->phys); else
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
mempool_free(mbox, phba->mbox_mem_pool);
}
/** * lpfc_dump_static_vport - Dump HBA's static vport information. * @phba: pointer to lpfc hba data structure. * @pmb: pointer to the driver internal queue element for mailbox command. * @offset: offset for dumping vport info. * * 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 list of static * vports to be created.
**/ int
lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
uint16_t offset)
{
MAILBOX_t *mb; struct lpfc_dmabuf *mp; int rc;
mb = &pmb->u.mb;
/* Setup to dump vport info region */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.entry_index = offset;
mb->un.varDmp.region_id = DMP_REGION_VPORT;
mb->mbxOwner = OWN_HOST;
/* For SLI3 HBAs data is embedded in mailbox */ if (phba->sli_rev != LPFC_SLI_REV4) {
mb->un.varDmp.cv = 1;
mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t); return 0;
}
/** * lpfc_down_link - Bring down HBAs link. * @phba: pointer to lpfc hba data structure. * @pmb: pointer to the driver internal queue element for mailbox command. * * This routine prepares a mailbox command to bring down HBA link.
**/ void
lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb = &pmb->u.mb;
mb->mbxCommand = MBX_DOWN_LINK;
mb->mbxOwner = OWN_HOST;
}
/** * lpfc_dump_mem - Prepare a mailbox command for reading a region. * @phba: pointer to lpfc hba data structure. * @pmb: pointer to the driver internal queue element for mailbox command. * @offset: offset into the region. * @region_id: config region id. * * 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's config region.
**/ void
lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset,
uint16_t region_id)
{
MAILBOX_t *mb;
/** * lpfc_dump_wakeup_param - Prepare mailbox command for retrieving wakeup params * @phba: pointer to lpfc hba data structure. * @pmb: pointer to the driver internal queue element for mailbox command. * * This function create a dump memory mailbox command to dump wake up * parameters.
*/ void
lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
/** * 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;
/** * 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;
/** * 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;
/** * lpfc_read_topology - Prepare a mailbox command for reading HBA topology * @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 topology mailbox command is issued to read the link topology * information indicated by the HBA port when the Link Event bit of the Host * Attention (HSTATT) register is set to 1 (For SLI-3) or when an FC Link * Attention ACQE is received from the port (For SLI-4). 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 topology * 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_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, struct lpfc_dmabuf *mp)
{
MAILBOX_t *mb;
/* Save address for later completion and set the owner to host so that * the FW knows this mailbox is available for processing.
*/
pmb->ctx_buf = 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;
/** * 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->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/* * 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;
MAILBOX_t *mb;
/** * 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; int rc;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/* Get a buffer to hold the HBAs Service Parameters */
rc = lpfc_mbox_rsrc_prep(phba, pmb); if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, "0301 READ_SPARAM: no buffers\n"); return 1;
}
/** * 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;
/** * 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;
/** * 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;
/** * lpfc_reg_rpi - 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. * @rpi: the rpi to use in the registration (usually only used for SLI4. * * 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_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
uint8_t *param, LPFC_MBOXQ_t *pmb, uint16_t rpi)
{
MAILBOX_t *mb = &pmb->u.mb;
uint8_t *sparam; struct lpfc_dmabuf *mp; int rc;
/** * 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. * * For SLI4 ports, the rpi passed to this function must be the physical * rpi value, not the logical index.
**/ void
lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
/** * lpfc_sli4_unreg_all_rpis - unregister all RPIs for a vport on SLI4 HBA. * @vport: pointer to a vport object. * * This routine sends mailbox command to unregister all active RPIs for * a vport.
**/ void
lpfc_sli4_unreg_all_rpis(struct lpfc_vport *vport)
{ struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox; int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox) { /* * For SLI4 functions, the rpi field is overloaded for * the vport context unreg all. This routine passes * 0 for the rpi field in lpfc_unreg_login for compatibility * with SLI3 and then overrides the rpi field with the * expected value for SLI4.
*/
lpfc_unreg_login(phba, vport->vpi, phba->vpi_ids[vport->vpi],
mbox);
mbox->u.mb.un.varUnregLogin.rsvd1 = 0x4000;
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->ctx_ndlp = NULL;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED)
mempool_free(mbox, phba->mbox_mem_pool);
}
}
/** * lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier * @vport: pointer to a vport object. * @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_vport *vport, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb; struct lpfc_hba *phba = vport->phba;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); /* * Set the re-reg VPI bit for f/w to update the MAC address.
*/ if ((phba->sli_rev == LPFC_SLI_REV4) &&
!test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag))
mb->un.varRegVpi.upd = 1;
/** * 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->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/** * 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).
**/ staticvoid
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->sli3_ring[i];
pring->sli.sli3.sizeCiocb =
phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE :
SLI2_IOCB_CMD_SIZE;
pring->sli.sli3.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->sli.sli3.numCiocb == 0) ||
(pring->sli.sli3.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->sli.sli3.cmdringaddr = NULL;
pring->sli.sli3.rspringaddr = NULL; continue;
} /* Command ring setup for ring */
pring->sli.sli3.cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
pcbp->rdsc[i].cmdEntries = pring->sli.sli3.numCiocb;
/** * 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->u.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.
**/ staticvoid
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.
**/ staticvoid
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.
**/ staticvoid
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->u.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);
/* 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); elseif (hbq_desc->profile == 3)
lpfc_build_hbq_profile3(hbqmb, hbq_desc); elseif (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: ring number/index * @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->u.mb; struct lpfc_sli *psli; struct lpfc_sli_ring *pring;
/* 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_RCTL_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->u.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;
/* * 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.
*/
/* * 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 *
*/
/* 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->u.mb;
/** * 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 cmd into mailbox cmd 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 is the unlocked version of the routine. 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)
{
list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
}
/** * 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 is the locked version of the routine. 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)
{ unsignedlong iflag;
/* This function expects to be called from interrupt context */
spin_lock_irqsave(&phba->hbalock, iflag);
__lpfc_mbox_cmpl_put(phba, mbq);
spin_unlock_irqrestore(&phba->hbalock, iflag); return;
}
/** * lpfc_mbox_cmd_check - Check the validality of a mailbox command * @phba: pointer to lpfc hba data structure. * @mboxq: pointer to the driver internal queue element for mailbox command. * * This routine is to check whether a mailbox command is valid to be issued. * This check will be performed by both the mailbox issue API when a client * is to issue a mailbox command to the mailbox transport. * * Return 0 - pass the check, -ENODEV - fail the check
**/ int
lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{ /* Mailbox command that have a completion handler must also have a * vport specified.
*/ if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) { if (!mboxq->vport) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT, "1814 Mbox x%x failed, no vport\n",
mboxq->u.mb.mbxCommand);
dump_stack(); return -ENODEV;
}
} return 0;
}
/** * lpfc_mbox_dev_check - Check the device state for issuing a mailbox command * @phba: pointer to lpfc hba data structure. * * This routine is to check whether the HBA device is ready for posting a * mailbox command. It is used by the mailbox transport API at the time the * to post a mailbox command to the device. * * Return 0 - pass the check, -ENODEV - fail the check
**/ int
lpfc_mbox_dev_check(struct lpfc_hba *phba)
{ /* If the PCI channel is in offline state, do not issue mbox */ if (unlikely(pci_channel_offline(phba->pcidev))) return -ENODEV;
/* If the HBA is in error state, do not issue mbox */ if (phba->link_state == LPFC_HBA_ERROR) return -ENODEV;
return 0;
}
/** * lpfc_mbox_tmo_val - Retrieve mailbox command timeout value * @phba: pointer to lpfc hba data structure. * @mboxq: pointer to the driver internal queue element for mailbox command. * * 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, LPFC_MBOXQ_t *mboxq)
{
MAILBOX_t *mbox = &mboxq->u.mb;
uint8_t subsys, opcode;
switch (mbox->mbxCommand) { case MBX_WRITE_NV: /* 0x03 */ case MBX_DUMP_MEMORY: /* 0x17 */ case MBX_UPDATE_CFG: /* 0x1B */ case MBX_DOWN_LOAD: /* 0x1C */ case MBX_DEL_LD_ENTRY: /* 0x1D */ case MBX_WRITE_VPARMS: /* 0x32 */ case MBX_LOAD_AREA: /* 0x81 */ case MBX_WRITE_WWN: /* 0x98 */ case MBX_LOAD_EXP_ROM: /* 0x9C */ case MBX_ACCESS_VDATA: /* 0xA5 */ return LPFC_MBOX_TMO_FLASH_CMD; case MBX_SLI4_CONFIG: /* 0x9b */
subsys = lpfc_sli_config_mbox_subsys_get(phba, mboxq);
opcode = lpfc_sli_config_mbox_opcode_get(phba, mboxq); if (subsys == LPFC_MBOX_SUBSYSTEM_COMMON) { switch (opcode) { case LPFC_MBOX_OPCODE_READ_OBJECT: case LPFC_MBOX_OPCODE_WRITE_OBJECT: case LPFC_MBOX_OPCODE_READ_OBJECT_LIST: case LPFC_MBOX_OPCODE_DELETE_OBJECT: case LPFC_MBOX_OPCODE_GET_PROFILE_LIST: case LPFC_MBOX_OPCODE_SET_ACT_PROFILE: case LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG: case LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG: case LPFC_MBOX_OPCODE_GET_FACTORY_PROFILE_CONFIG: case LPFC_MBOX_OPCODE_GET_PROFILE_CAPACITIES: case LPFC_MBOX_OPCODE_SEND_ACTIVATION: case LPFC_MBOX_OPCODE_RESET_LICENSES: case LPFC_MBOX_OPCODE_SET_BOOT_CONFIG: case LPFC_MBOX_OPCODE_GET_VPD_DATA: case LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG: return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
}
} if (subsys == LPFC_MBOX_SUBSYSTEM_FCOE) { switch (opcode) { case LPFC_MBOX_OPCODE_FCOE_SET_FCLINK_SETTINGS: return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
}
} return LPFC_MBOX_SLI4_CONFIG_TMO;
} return LPFC_MBOX_TMO;
}
/** * lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command * @mbox: pointer to lpfc mbox command. * @sgentry: sge entry index. * @phyaddr: physical address for the sge * @length: Length of the sge. * * This routine sets up an entry in the non-embedded mailbox command at the sge * index location.
**/ void
lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
dma_addr_t phyaddr, uint32_t length)
{ struct lpfc_mbx_nembed_cmd *nembed_sge;
/** * lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command * @phba: pointer to lpfc hba data structure. * @mbox: pointer to lpfc mbox command. * * This routine cleans up and releases an SLI4 mailbox command that was * configured using lpfc_sli4_config. It accounts for the embedded and * non-embedded config types.
**/ void
lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{ struct lpfc_mbx_sli4_config *sli4_cfg; struct lpfc_mbx_sge sge;
dma_addr_t phyaddr;
uint32_t sgecount, sgentry;
sli4_cfg = &mbox->u.mqe.un.sli4_config;
/* For embedded mbox command, just free the mbox command */ if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
mempool_free(mbox, phba->mbox_mem_pool); return;
}
/* For non-embedded mbox command, we need to free the pages first */
sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr); /* There is nothing we can do if there is no sge address array */ if (unlikely(!mbox->sge_array)) {
mempool_free(mbox, phba->mbox_mem_pool); return;
} /* Each non-embedded DMA memory was allocated in the length of a page */ for (sgentry = 0; sgentry < sgecount; sgentry++) {
lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge);
phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
mbox->sge_array->addr[sgentry], phyaddr);
} /* Reinitialize the context pointers to avoid stale usage. */
mbox->ctx_buf = NULL;
memset(&mbox->ctx_u, 0, sizeof(mbox->ctx_u));
kfree(mbox->sge_array); /* Finally, free the mailbox command itself */
mempool_free(mbox, phba->mbox_mem_pool);
}
/** * lpfc_sli4_config - Initialize the SLI4 Config Mailbox command * @phba: pointer to lpfc hba data structure. * @mbox: pointer to lpfc mbox command. * @subsystem: The sli4 config sub mailbox subsystem. * @opcode: The sli4 config sub mailbox command opcode. * @length: Length of the sli4 config mailbox command (including sub-header). * @emb: True if embedded mbox command should be setup. * * This routine sets up the header fields of SLI4 specific mailbox command * for sending IOCTL command. * * Return: the actual length of the mbox command allocated (mostly useful * for none embedded mailbox command).
**/ int
lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
{ struct lpfc_mbx_sli4_config *sli4_config; union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
uint32_t alloc_len;
uint32_t resid_len;
uint32_t pagen, pcount; void *viraddr;
dma_addr_t phyaddr;
/* Set up SLI4 mailbox command header fields */
memset(mbox, 0, sizeof(*mbox));
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);
/* Set up SLI4 ioctl command header fields */
sli4_config = &mbox->u.mqe.un.sli4_config;
/* Setup for the embedded mbox command */ if (emb) { /* Set up main header fields */
bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
sli4_config->header.cfg_mhdr.payload_length = length; /* Set up sub-header fields following main header */
bf_set(lpfc_mbox_hdr_opcode,
&sli4_config->header.cfg_shdr.request, opcode);
bf_set(lpfc_mbox_hdr_subsystem,
&sli4_config->header.cfg_shdr.request, subsystem);
sli4_config->header.cfg_shdr.request.request_length =
length - LPFC_MBX_CMD_HDR_LENGTH; return length;
}
/* Setup for the non-embedded mbox command */
pcount = (SLI4_PAGE_ALIGN(length))/SLI4_PAGE_SIZE;
pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount; /* Allocate record for keeping SGE virtual addresses */
mbox->sge_array = kzalloc(sizeof(struct lpfc_mbx_nembed_sge_virt),
GFP_KERNEL); if (!mbox->sge_array) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, "2527 Failed to allocate non-embedded SGE " "array.\n"); return 0;
} for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) { /* The DMA memory is always allocated in the length of a * page even though the last SGE might not fill up to a * page, this is used as a priori size of SLI4_PAGE_SIZE for * the later DMA memory free.
*/
viraddr = dma_alloc_coherent(&phba->pcidev->dev,
SLI4_PAGE_SIZE, &phyaddr,
GFP_KERNEL); /* In case of malloc fails, proceed with whatever we have */ if (!viraddr) break;
mbox->sge_array->addr[pagen] = viraddr; /* Keep the first page for later sub-header construction */ if (pagen == 0)
cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
resid_len = length - alloc_len; if (resid_len > SLI4_PAGE_SIZE) {
lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
SLI4_PAGE_SIZE);
alloc_len += SLI4_PAGE_SIZE;
} else {
lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
resid_len);
alloc_len = length;
}
}
/* Set up main header fields in mailbox command */
sli4_config->header.cfg_mhdr.payload_length = alloc_len;
bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);
/* Set up sub-header fields into the first page */ if (pagen > 0) {
bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
cfg_shdr->request.request_length =
alloc_len - sizeof(union lpfc_sli4_cfg_shdr);
} /* The sub-header is in DMA memory, which needs endian converstion */ if (cfg_shdr)
lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr, sizeof(union lpfc_sli4_cfg_shdr)); return alloc_len;
}
/** * lpfc_sli4_mbox_rsrc_extent - Initialize the opcode resource extent. * @phba: pointer to lpfc hba data structure. * @mbox: pointer to an allocated lpfc mbox resource. * @exts_count: the number of extents, if required, to allocate. * @rsrc_type: the resource extent type. * @emb: true if LPFC_SLI4_MBX_EMBED. false if LPFC_SLI4_MBX_NEMBED. * * This routine completes the subcommand header for SLI4 resource extent * mailbox commands. It is called after lpfc_sli4_config. The caller must * pass an allocated mailbox and the attributes required to initialize the * mailbox correctly. * * Return: the actual length of the mbox command allocated.
**/ int
lpfc_sli4_mbox_rsrc_extent(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
uint16_t exts_count, uint16_t rsrc_type, bool emb)
{
uint8_t opcode = 0; struct lpfc_mbx_nembed_rsrc_extent *n_rsrc_extnt = NULL; void *virtaddr = NULL;
/* Set up SLI4 ioctl command header fields */ if (emb == LPFC_SLI4_MBX_NEMBED) { /* Get the first SGE entry from the non-embedded DMA memory */
virtaddr = mbox->sge_array->addr[0]; if (virtaddr == NULL) return 1;
n_rsrc_extnt = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
}
/* * The resource type is common to all extent Opcodes and resides in the * same position.
*/ if (emb == LPFC_SLI4_MBX_EMBED)
bf_set(lpfc_mbx_alloc_rsrc_extents_type,
&mbox->u.mqe.un.alloc_rsrc_extents.u.req,
rsrc_type); else { /* This is DMA data. Byteswap is required. */
bf_set(lpfc_mbx_alloc_rsrc_extents_type,
n_rsrc_extnt, rsrc_type);
lpfc_sli_pcimem_bcopy(&n_rsrc_extnt->word4,
&n_rsrc_extnt->word4,
--> --------------------
--> maximum size reached
--> --------------------
Messung V0.5
¤ Dauer der Verarbeitung: 0.23 Sekunden
(vorverarbeitet)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.