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scsi: elx: libefc: Register discovery objects with hardware
Add library interface definitions for: - Registrations for VFI, VPI and RPI. Link: https://lore.kernel.org/r/20210601235512.20104-17-jsmart2021@gmail.com Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart
Martin K. Petersen
parent
8f406ef728
commit
cdaf39bad5
777
drivers/scsi/elx/libefc/efc_cmds.c
Normal file
777
drivers/scsi/elx/libefc/efc_cmds.c
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@ -0,0 +1,777 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
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*/
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#include "efclib.h"
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#include "../libefc_sli/sli4.h"
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#include "efc_cmds.h"
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#include "efc_sm.h"
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static void
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efc_nport_free_resources(struct efc_nport *nport, int evt, void *data)
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{
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struct efc *efc = nport->efc;
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/* Clear the nport attached flag */
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nport->attached = false;
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/* Free the service parameters buffer */
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if (nport->dma.virt) {
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dma_free_coherent(&efc->pci->dev, nport->dma.size,
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nport->dma.virt, nport->dma.phys);
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memset(&nport->dma, 0, sizeof(struct efc_dma));
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}
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/* Free the SLI resources */
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sli_resource_free(efc->sli, SLI4_RSRC_VPI, nport->indicator);
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efc_nport_cb(efc, evt, nport);
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}
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static int
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efc_nport_get_mbox_status(struct efc_nport *nport, u8 *mqe, int status)
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{
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struct efc *efc = nport->efc;
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struct sli4_mbox_command_header *hdr =
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(struct sli4_mbox_command_header *)mqe;
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if (status || le16_to_cpu(hdr->status)) {
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efc_log_debug(efc, "bad status vpi=%#x st=%x hdr=%x\n",
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nport->indicator, status, le16_to_cpu(hdr->status));
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return -EIO;
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}
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return 0;
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}
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static int
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efc_nport_free_unreg_vpi_cb(struct efc *efc, int status, u8 *mqe, void *arg)
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{
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struct efc_nport *nport = arg;
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int evt = EFC_EVT_NPORT_FREE_OK;
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int rc;
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rc = efc_nport_get_mbox_status(nport, mqe, status);
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if (rc)
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evt = EFC_EVT_NPORT_FREE_FAIL;
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efc_nport_free_resources(nport, evt, mqe);
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return rc;
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}
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static void
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efc_nport_free_unreg_vpi(struct efc_nport *nport)
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{
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struct efc *efc = nport->efc;
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int rc;
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u8 data[SLI4_BMBX_SIZE];
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rc = sli_cmd_unreg_vpi(efc->sli, data, nport->indicator,
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SLI4_UNREG_TYPE_PORT);
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if (rc) {
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efc_log_err(efc, "UNREG_VPI format failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_FREE_FAIL, data);
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return;
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}
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rc = efc->tt.issue_mbox_rqst(efc->base, data,
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efc_nport_free_unreg_vpi_cb, nport);
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if (rc) {
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efc_log_err(efc, "UNREG_VPI command failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_FREE_FAIL, data);
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}
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}
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static void
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efc_nport_send_evt(struct efc_nport *nport, int evt, void *data)
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{
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struct efc *efc = nport->efc;
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/* Now inform the registered callbacks */
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efc_nport_cb(efc, evt, nport);
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/* Set the nport attached flag */
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if (evt == EFC_EVT_NPORT_ATTACH_OK)
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nport->attached = true;
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/* If there is a pending free request, then handle it now */
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if (nport->free_req_pending)
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efc_nport_free_unreg_vpi(nport);
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}
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static int
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efc_nport_alloc_init_vpi_cb(struct efc *efc, int status, u8 *mqe, void *arg)
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{
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struct efc_nport *nport = arg;
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if (efc_nport_get_mbox_status(nport, mqe, status)) {
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, mqe);
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return -EIO;
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}
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efc_nport_send_evt(nport, EFC_EVT_NPORT_ALLOC_OK, mqe);
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return 0;
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}
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static void
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efc_nport_alloc_init_vpi(struct efc_nport *nport)
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{
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struct efc *efc = nport->efc;
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u8 data[SLI4_BMBX_SIZE];
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int rc;
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/* If there is a pending free request, then handle it now */
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if (nport->free_req_pending) {
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efc_nport_free_resources(nport, EFC_EVT_NPORT_FREE_OK, data);
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return;
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}
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rc = sli_cmd_init_vpi(efc->sli, data,
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nport->indicator, nport->domain->indicator);
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if (rc) {
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efc_log_err(efc, "INIT_VPI format failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
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return;
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}
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rc = efc->tt.issue_mbox_rqst(efc->base, data,
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efc_nport_alloc_init_vpi_cb, nport);
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if (rc) {
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efc_log_err(efc, "INIT_VPI command failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
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}
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}
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static int
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efc_nport_alloc_read_sparm64_cb(struct efc *efc, int status, u8 *mqe, void *arg)
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{
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struct efc_nport *nport = arg;
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u8 *payload = NULL;
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if (efc_nport_get_mbox_status(nport, mqe, status)) {
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, mqe);
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return -EIO;
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}
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payload = nport->dma.virt;
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memcpy(&nport->sli_wwpn, payload + SLI4_READ_SPARM64_WWPN_OFFSET,
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sizeof(nport->sli_wwpn));
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memcpy(&nport->sli_wwnn, payload + SLI4_READ_SPARM64_WWNN_OFFSET,
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sizeof(nport->sli_wwnn));
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dma_free_coherent(&efc->pci->dev, nport->dma.size, nport->dma.virt,
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nport->dma.phys);
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memset(&nport->dma, 0, sizeof(struct efc_dma));
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efc_nport_alloc_init_vpi(nport);
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return 0;
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}
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static void
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efc_nport_alloc_read_sparm64(struct efc *efc, struct efc_nport *nport)
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{
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u8 data[SLI4_BMBX_SIZE];
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int rc;
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/* Allocate memory for the service parameters */
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nport->dma.size = EFC_SPARAM_DMA_SZ;
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nport->dma.virt = dma_alloc_coherent(&efc->pci->dev,
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nport->dma.size, &nport->dma.phys,
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GFP_DMA);
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if (!nport->dma.virt) {
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efc_log_err(efc, "Failed to allocate DMA memory\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
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return;
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}
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rc = sli_cmd_read_sparm64(efc->sli, data,
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&nport->dma, nport->indicator);
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if (rc) {
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efc_log_err(efc, "READ_SPARM64 format failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
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return;
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}
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rc = efc->tt.issue_mbox_rqst(efc->base, data,
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efc_nport_alloc_read_sparm64_cb, nport);
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if (rc) {
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efc_log_err(efc, "READ_SPARM64 command failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
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}
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}
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int
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efc_cmd_nport_alloc(struct efc *efc, struct efc_nport *nport,
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struct efc_domain *domain, u8 *wwpn)
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{
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u32 index;
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nport->indicator = U32_MAX;
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nport->free_req_pending = false;
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if (wwpn)
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memcpy(&nport->sli_wwpn, wwpn, sizeof(nport->sli_wwpn));
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/*
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* allocate a VPI object for the port and stores it in the
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* indicator field of the port object.
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*/
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if (sli_resource_alloc(efc->sli, SLI4_RSRC_VPI,
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&nport->indicator, &index)) {
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efc_log_err(efc, "VPI allocation failure\n");
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return -EIO;
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}
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if (domain) {
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/*
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* If the WWPN is NULL, fetch the default
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* WWPN and WWNN before initializing the VPI
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*/
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if (!wwpn)
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efc_nport_alloc_read_sparm64(efc, nport);
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else
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efc_nport_alloc_init_vpi(nport);
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} else if (!wwpn) {
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/* domain NULL and wwpn non-NULL */
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efc_log_err(efc, "need WWN for physical port\n");
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sli_resource_free(efc->sli, SLI4_RSRC_VPI, nport->indicator);
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return -EIO;
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}
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return 0;
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}
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static int
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efc_nport_attach_reg_vpi_cb(struct efc *efc, int status, u8 *mqe,
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void *arg)
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{
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struct efc_nport *nport = arg;
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if (efc_nport_get_mbox_status(nport, mqe, status)) {
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ATTACH_FAIL, mqe);
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return -EIO;
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}
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efc_nport_send_evt(nport, EFC_EVT_NPORT_ATTACH_OK, mqe);
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return 0;
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}
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int
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efc_cmd_nport_attach(struct efc *efc, struct efc_nport *nport, u32 fc_id)
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{
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u8 buf[SLI4_BMBX_SIZE];
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int rc = 0;
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if (!nport) {
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efc_log_err(efc, "bad param(s) nport=%p\n", nport);
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return -EIO;
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}
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nport->fc_id = fc_id;
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/* register previously-allocated VPI with the device */
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rc = sli_cmd_reg_vpi(efc->sli, buf, nport->fc_id,
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nport->sli_wwpn, nport->indicator,
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nport->domain->indicator, false);
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if (rc) {
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efc_log_err(efc, "REG_VPI format failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ATTACH_FAIL, buf);
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return rc;
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}
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rc = efc->tt.issue_mbox_rqst(efc->base, buf,
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efc_nport_attach_reg_vpi_cb, nport);
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if (rc) {
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efc_log_err(efc, "REG_VPI command failure\n");
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efc_nport_free_resources(nport, EFC_EVT_NPORT_ATTACH_FAIL, buf);
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}
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return rc;
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}
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int
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efc_cmd_nport_free(struct efc *efc, struct efc_nport *nport)
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{
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if (!nport) {
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efc_log_err(efc, "bad parameter(s) nport=%p\n", nport);
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return -EIO;
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}
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/* Issue the UNREG_VPI command to free the assigned VPI context */
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if (nport->attached)
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efc_nport_free_unreg_vpi(nport);
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else
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nport->free_req_pending = true;
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return 0;
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}
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static int
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efc_domain_get_mbox_status(struct efc_domain *domain, u8 *mqe, int status)
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{
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struct efc *efc = domain->efc;
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struct sli4_mbox_command_header *hdr =
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(struct sli4_mbox_command_header *)mqe;
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if (status || le16_to_cpu(hdr->status)) {
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efc_log_debug(efc, "bad status vfi=%#x st=%x hdr=%x\n",
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domain->indicator, status,
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le16_to_cpu(hdr->status));
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return -EIO;
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}
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return 0;
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}
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static void
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efc_domain_free_resources(struct efc_domain *domain, int evt, void *data)
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{
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struct efc *efc = domain->efc;
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/* Free the service parameters buffer */
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if (domain->dma.virt) {
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dma_free_coherent(&efc->pci->dev,
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domain->dma.size, domain->dma.virt,
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domain->dma.phys);
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memset(&domain->dma, 0, sizeof(struct efc_dma));
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}
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/* Free the SLI resources */
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sli_resource_free(efc->sli, SLI4_RSRC_VFI, domain->indicator);
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efc_domain_cb(efc, evt, domain);
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}
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static void
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efc_domain_send_nport_evt(struct efc_domain *domain,
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int port_evt, int domain_evt, void *data)
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{
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struct efc *efc = domain->efc;
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/* Send alloc/attach ok to the physical nport */
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efc_nport_send_evt(domain->nport, port_evt, NULL);
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/* Now inform the registered callbacks */
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efc_domain_cb(efc, domain_evt, domain);
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}
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static int
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efc_domain_alloc_read_sparm64_cb(struct efc *efc, int status, u8 *mqe,
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void *arg)
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{
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struct efc_domain *domain = arg;
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if (efc_domain_get_mbox_status(domain, mqe, status)) {
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efc_domain_free_resources(domain,
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EFC_HW_DOMAIN_ALLOC_FAIL, mqe);
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return -EIO;
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}
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efc_domain_send_nport_evt(domain, EFC_EVT_NPORT_ALLOC_OK,
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EFC_HW_DOMAIN_ALLOC_OK, mqe);
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return 0;
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}
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static void
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efc_domain_alloc_read_sparm64(struct efc_domain *domain)
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{
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struct efc *efc = domain->efc;
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u8 data[SLI4_BMBX_SIZE];
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int rc;
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rc = sli_cmd_read_sparm64(efc->sli, data, &domain->dma, 0);
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if (rc) {
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efc_log_err(efc, "READ_SPARM64 format failure\n");
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efc_domain_free_resources(domain,
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EFC_HW_DOMAIN_ALLOC_FAIL, data);
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return;
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}
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rc = efc->tt.issue_mbox_rqst(efc->base, data,
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efc_domain_alloc_read_sparm64_cb, domain);
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if (rc) {
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efc_log_err(efc, "READ_SPARM64 command failure\n");
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efc_domain_free_resources(domain,
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EFC_HW_DOMAIN_ALLOC_FAIL, data);
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}
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}
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static int
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efc_domain_alloc_init_vfi_cb(struct efc *efc, int status, u8 *mqe,
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void *arg)
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{
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struct efc_domain *domain = arg;
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if (efc_domain_get_mbox_status(domain, mqe, status)) {
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efc_domain_free_resources(domain,
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EFC_HW_DOMAIN_ALLOC_FAIL, mqe);
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return -EIO;
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}
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efc_domain_alloc_read_sparm64(domain);
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return 0;
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}
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static void
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efc_domain_alloc_init_vfi(struct efc_domain *domain)
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{
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struct efc *efc = domain->efc;
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struct efc_nport *nport = domain->nport;
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u8 data[SLI4_BMBX_SIZE];
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int rc;
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/*
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* For FC, the HW alread registered an FCFI.
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* Copy FCF information into the domain and jump to INIT_VFI.
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*/
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domain->fcf_indicator = efc->fcfi;
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rc = sli_cmd_init_vfi(efc->sli, data, domain->indicator,
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domain->fcf_indicator, nport->indicator);
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if (rc) {
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efc_log_err(efc, "INIT_VFI format failure\n");
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efc_domain_free_resources(domain,
|
||||
EFC_HW_DOMAIN_ALLOC_FAIL, data);
|
||||
return;
|
||||
}
|
||||
|
||||
efc_log_err(efc, "%s issue mbox\n", __func__);
|
||||
rc = efc->tt.issue_mbox_rqst(efc->base, data,
|
||||
efc_domain_alloc_init_vfi_cb, domain);
|
||||
if (rc) {
|
||||
efc_log_err(efc, "INIT_VFI command failure\n");
|
||||
efc_domain_free_resources(domain,
|
||||
EFC_HW_DOMAIN_ALLOC_FAIL, data);
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
efc_cmd_domain_alloc(struct efc *efc, struct efc_domain *domain, u32 fcf)
|
||||
{
|
||||
u32 index;
|
||||
|
||||
if (!domain || !domain->nport) {
|
||||
efc_log_err(efc, "bad parameter(s) domain=%p nport=%p\n",
|
||||
domain, domain ? domain->nport : NULL);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* allocate memory for the service parameters */
|
||||
domain->dma.size = EFC_SPARAM_DMA_SZ;
|
||||
domain->dma.virt = dma_alloc_coherent(&efc->pci->dev,
|
||||
domain->dma.size,
|
||||
&domain->dma.phys, GFP_DMA);
|
||||
if (!domain->dma.virt) {
|
||||
efc_log_err(efc, "Failed to allocate DMA memory\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
domain->fcf = fcf;
|
||||
domain->fcf_indicator = U32_MAX;
|
||||
domain->indicator = U32_MAX;
|
||||
|
||||
if (sli_resource_alloc(efc->sli, SLI4_RSRC_VFI, &domain->indicator,
|
||||
&index)) {
|
||||
efc_log_err(efc, "VFI allocation failure\n");
|
||||
|
||||
dma_free_coherent(&efc->pci->dev,
|
||||
domain->dma.size, domain->dma.virt,
|
||||
domain->dma.phys);
|
||||
memset(&domain->dma, 0, sizeof(struct efc_dma));
|
||||
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
efc_domain_alloc_init_vfi(domain);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
efc_domain_attach_reg_vfi_cb(struct efc *efc, int status, u8 *mqe,
|
||||
void *arg)
|
||||
{
|
||||
struct efc_domain *domain = arg;
|
||||
|
||||
if (efc_domain_get_mbox_status(domain, mqe, status)) {
|
||||
efc_domain_free_resources(domain,
|
||||
EFC_HW_DOMAIN_ATTACH_FAIL, mqe);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
efc_domain_send_nport_evt(domain, EFC_EVT_NPORT_ATTACH_OK,
|
||||
EFC_HW_DOMAIN_ATTACH_OK, mqe);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
efc_cmd_domain_attach(struct efc *efc, struct efc_domain *domain, u32 fc_id)
|
||||
{
|
||||
u8 buf[SLI4_BMBX_SIZE];
|
||||
int rc = 0;
|
||||
|
||||
if (!domain) {
|
||||
efc_log_err(efc, "bad param(s) domain=%p\n", domain);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
domain->nport->fc_id = fc_id;
|
||||
|
||||
rc = sli_cmd_reg_vfi(efc->sli, buf, SLI4_BMBX_SIZE, domain->indicator,
|
||||
domain->fcf_indicator, domain->dma,
|
||||
domain->nport->indicator, domain->nport->sli_wwpn,
|
||||
domain->nport->fc_id);
|
||||
if (rc) {
|
||||
efc_log_err(efc, "REG_VFI format failure\n");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
rc = efc->tt.issue_mbox_rqst(efc->base, buf,
|
||||
efc_domain_attach_reg_vfi_cb, domain);
|
||||
if (rc) {
|
||||
efc_log_err(efc, "REG_VFI command failure\n");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
return rc;
|
||||
|
||||
cleanup:
|
||||
efc_domain_free_resources(domain, EFC_HW_DOMAIN_ATTACH_FAIL, buf);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int
|
||||
efc_domain_free_unreg_vfi_cb(struct efc *efc, int status, u8 *mqe, void *arg)
|
||||
{
|
||||
struct efc_domain *domain = arg;
|
||||
int evt = EFC_HW_DOMAIN_FREE_OK;
|
||||
int rc;
|
||||
|
||||
rc = efc_domain_get_mbox_status(domain, mqe, status);
|
||||
if (rc) {
|
||||
evt = EFC_HW_DOMAIN_FREE_FAIL;
|
||||
rc = -EIO;
|
||||
}
|
||||
|
||||
efc_domain_free_resources(domain, evt, mqe);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void
|
||||
efc_domain_free_unreg_vfi(struct efc_domain *domain)
|
||||
{
|
||||
struct efc *efc = domain->efc;
|
||||
int rc;
|
||||
u8 data[SLI4_BMBX_SIZE];
|
||||
|
||||
rc = sli_cmd_unreg_vfi(efc->sli, data, domain->indicator,
|
||||
SLI4_UNREG_TYPE_DOMAIN);
|
||||
if (rc) {
|
||||
efc_log_err(efc, "UNREG_VFI format failure\n");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
rc = efc->tt.issue_mbox_rqst(efc->base, data,
|
||||
efc_domain_free_unreg_vfi_cb, domain);
|
||||
if (rc) {
|
||||
efc_log_err(efc, "UNREG_VFI command failure\n");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
return;
|
||||
|
||||
cleanup:
|
||||
efc_domain_free_resources(domain, EFC_HW_DOMAIN_FREE_FAIL, data);
|
||||
}
|
||||
|
||||
int
|
||||
efc_cmd_domain_free(struct efc *efc, struct efc_domain *domain)
|
||||
{
|
||||
if (!domain) {
|
||||
efc_log_err(efc, "bad parameter(s) domain=%p\n", domain);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
efc_domain_free_unreg_vfi(domain);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
efc_cmd_node_alloc(struct efc *efc, struct efc_remote_node *rnode, u32 fc_addr,
|
||||
struct efc_nport *nport)
|
||||
{
|
||||
/* Check for invalid indicator */
|
||||
if (rnode->indicator != U32_MAX) {
|
||||
efc_log_err(efc,
|
||||
"RPI allocation failure addr=%#x rpi=%#x\n",
|
||||
fc_addr, rnode->indicator);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* NULL SLI port indicates an unallocated remote node */
|
||||
rnode->nport = NULL;
|
||||
|
||||
if (sli_resource_alloc(efc->sli, SLI4_RSRC_RPI,
|
||||
&rnode->indicator, &rnode->index)) {
|
||||
efc_log_err(efc, "RPI allocation failure addr=%#x\n",
|
||||
fc_addr);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
rnode->fc_id = fc_addr;
|
||||
rnode->nport = nport;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
efc_cmd_node_attach_cb(struct efc *efc, int status, u8 *mqe, void *arg)
|
||||
{
|
||||
struct efc_remote_node *rnode = arg;
|
||||
struct sli4_mbox_command_header *hdr =
|
||||
(struct sli4_mbox_command_header *)mqe;
|
||||
int evt = 0;
|
||||
|
||||
if (status || le16_to_cpu(hdr->status)) {
|
||||
efc_log_debug(efc, "bad status cqe=%#x mqe=%#x\n", status,
|
||||
le16_to_cpu(hdr->status));
|
||||
rnode->attached = false;
|
||||
evt = EFC_EVT_NODE_ATTACH_FAIL;
|
||||
} else {
|
||||
rnode->attached = true;
|
||||
evt = EFC_EVT_NODE_ATTACH_OK;
|
||||
}
|
||||
|
||||
efc_remote_node_cb(efc, evt, rnode);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
efc_cmd_node_attach(struct efc *efc, struct efc_remote_node *rnode,
|
||||
struct efc_dma *sparms)
|
||||
{
|
||||
int rc = -EIO;
|
||||
u8 buf[SLI4_BMBX_SIZE];
|
||||
|
||||
if (!rnode || !sparms) {
|
||||
efc_log_err(efc, "bad parameter(s) rnode=%p sparms=%p\n",
|
||||
rnode, sparms);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/*
|
||||
* If the attach count is non-zero, this RPI has already been reg'd.
|
||||
* Otherwise, register the RPI
|
||||
*/
|
||||
if (rnode->index == U32_MAX) {
|
||||
efc_log_err(efc, "bad parameter rnode->index invalid\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* Update a remote node object with the remote port's service params */
|
||||
if (!sli_cmd_reg_rpi(efc->sli, buf, rnode->indicator,
|
||||
rnode->nport->indicator, rnode->fc_id, sparms, 0, 0))
|
||||
rc = efc->tt.issue_mbox_rqst(efc->base, buf,
|
||||
efc_cmd_node_attach_cb, rnode);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
int
|
||||
efc_node_free_resources(struct efc *efc, struct efc_remote_node *rnode)
|
||||
{
|
||||
int rc = 0;
|
||||
|
||||
if (!rnode) {
|
||||
efc_log_err(efc, "bad parameter rnode=%p\n", rnode);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (rnode->nport) {
|
||||
if (rnode->attached) {
|
||||
efc_log_err(efc, "rnode is still attached\n");
|
||||
return -EIO;
|
||||
}
|
||||
if (rnode->indicator != U32_MAX) {
|
||||
if (sli_resource_free(efc->sli, SLI4_RSRC_RPI,
|
||||
rnode->indicator)) {
|
||||
efc_log_err(efc,
|
||||
"RPI free fail RPI %d addr=%#x\n",
|
||||
rnode->indicator, rnode->fc_id);
|
||||
rc = -EIO;
|
||||
} else {
|
||||
rnode->indicator = U32_MAX;
|
||||
rnode->index = U32_MAX;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int
|
||||
efc_cmd_node_free_cb(struct efc *efc, int status, u8 *mqe, void *arg)
|
||||
{
|
||||
struct efc_remote_node *rnode = arg;
|
||||
struct sli4_mbox_command_header *hdr =
|
||||
(struct sli4_mbox_command_header *)mqe;
|
||||
int evt = EFC_EVT_NODE_FREE_FAIL;
|
||||
int rc = 0;
|
||||
|
||||
if (status || le16_to_cpu(hdr->status)) {
|
||||
efc_log_debug(efc, "bad status cqe=%#x mqe=%#x\n", status,
|
||||
le16_to_cpu(hdr->status));
|
||||
|
||||
/*
|
||||
* In certain cases, a non-zero MQE status is OK (all must be
|
||||
* true):
|
||||
* - node is attached
|
||||
* - status is 0x1400
|
||||
*/
|
||||
if (!rnode->attached ||
|
||||
(le16_to_cpu(hdr->status) != SLI4_MBX_STATUS_RPI_NOT_REG))
|
||||
rc = -EIO;
|
||||
}
|
||||
|
||||
if (!rc) {
|
||||
rnode->attached = false;
|
||||
evt = EFC_EVT_NODE_FREE_OK;
|
||||
}
|
||||
|
||||
efc_remote_node_cb(efc, evt, rnode);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
int
|
||||
efc_cmd_node_detach(struct efc *efc, struct efc_remote_node *rnode)
|
||||
{
|
||||
u8 buf[SLI4_BMBX_SIZE];
|
||||
int rc = -EIO;
|
||||
|
||||
if (!rnode) {
|
||||
efc_log_err(efc, "bad parameter rnode=%p\n", rnode);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (rnode->nport) {
|
||||
if (!rnode->attached)
|
||||
return -EIO;
|
||||
|
||||
rc = -EIO;
|
||||
|
||||
if (!sli_cmd_unreg_rpi(efc->sli, buf, rnode->indicator,
|
||||
SLI4_RSRC_RPI, U32_MAX))
|
||||
rc = efc->tt.issue_mbox_rqst(efc->base, buf,
|
||||
efc_cmd_node_free_cb, rnode);
|
||||
|
||||
if (rc != 0) {
|
||||
efc_log_err(efc, "UNREG_RPI failed\n");
|
||||
rc = -EIO;
|
||||
}
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
35
drivers/scsi/elx/libefc/efc_cmds.h
Normal file
35
drivers/scsi/elx/libefc/efc_cmds.h
Normal file
@ -0,0 +1,35 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
|
||||
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
|
||||
*/
|
||||
|
||||
#ifndef __EFC_CMDS_H__
|
||||
#define __EFC_CMDS_H__
|
||||
|
||||
#define EFC_SPARAM_DMA_SZ 112
|
||||
int
|
||||
efc_cmd_nport_alloc(struct efc *efc, struct efc_nport *nport,
|
||||
struct efc_domain *domain, u8 *wwpn);
|
||||
int
|
||||
efc_cmd_nport_attach(struct efc *efc, struct efc_nport *nport, u32 fc_id);
|
||||
int
|
||||
efc_cmd_nport_free(struct efc *efc, struct efc_nport *nport);
|
||||
int
|
||||
efc_cmd_domain_alloc(struct efc *efc, struct efc_domain *domain, u32 fcf);
|
||||
int
|
||||
efc_cmd_domain_attach(struct efc *efc, struct efc_domain *domain, u32 fc_id);
|
||||
int
|
||||
efc_cmd_domain_free(struct efc *efc, struct efc_domain *domain);
|
||||
int
|
||||
efc_cmd_node_detach(struct efc *efc, struct efc_remote_node *rnode);
|
||||
int
|
||||
efc_node_free_resources(struct efc *efc, struct efc_remote_node *rnode);
|
||||
int
|
||||
efc_cmd_node_attach(struct efc *efc, struct efc_remote_node *rnode,
|
||||
struct efc_dma *sparms);
|
||||
int
|
||||
efc_cmd_node_alloc(struct efc *efc, struct efc_remote_node *rnode, u32 fc_addr,
|
||||
struct efc_nport *nport);
|
||||
|
||||
#endif /* __EFC_CMDS_H */
|
||||
Loading…
Reference in New Issue
Block a user