lpfc: Correct RDP response sizing issue
Correct RDP response sizing issue
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 300131a..0d05e1a 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -4609,7 +4609,7 @@
return sentplogi;
}
-void
+uint32_t
lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
uint32_t word0)
{
@@ -4617,9 +4617,11 @@
desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
desc->payload.els_req = word0;
desc->length = cpu_to_be32(sizeof(desc->payload));
+
+ return sizeof(struct fc_rdp_link_service_desc);
}
-void
+uint32_t
lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
uint8_t *page_a0, uint8_t *page_a2)
{
@@ -4680,9 +4682,11 @@
desc->sfp_info.flags = cpu_to_be16(flag);
desc->length = cpu_to_be32(sizeof(desc->sfp_info));
+
+ return sizeof(struct fc_rdp_sfp_desc);
}
-void
+uint32_t
lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
READ_LNK_VAR *stat)
{
@@ -4707,9 +4711,11 @@
desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
desc->length = cpu_to_be32(sizeof(desc->info));
+
+ return sizeof(struct fc_rdp_link_error_status_desc);
}
-void
+uint32_t
lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
struct lpfc_vport *vport)
{
@@ -4727,9 +4733,11 @@
desc->bbc_info.rtt = 0;
desc->length = cpu_to_be32(sizeof(desc->bbc_info));
+
+ return sizeof(struct fc_rdp_bbc_desc);
}
-void
+uint32_t
lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
{
@@ -4757,9 +4765,10 @@
flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
+ return sizeof(struct fc_rdp_oed_sfp_desc);
}
-void
+uint32_t
lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
@@ -4788,9 +4797,10 @@
flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
+ return sizeof(struct fc_rdp_oed_sfp_desc);
}
-void
+uint32_t
lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
@@ -4819,9 +4829,10 @@
flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
+ return sizeof(struct fc_rdp_oed_sfp_desc);
}
-void
+uint32_t
lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
@@ -4850,10 +4861,11 @@
flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
+ return sizeof(struct fc_rdp_oed_sfp_desc);
}
-void
+uint32_t
lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
@@ -4882,9 +4894,10 @@
flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
+ return sizeof(struct fc_rdp_oed_sfp_desc);
}
-void
+uint32_t
lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
uint8_t *page_a0, struct lpfc_vport *vport)
{
@@ -4895,9 +4908,10 @@
memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 2);
memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
desc->length = cpu_to_be32(sizeof(desc->opd_info));
+ return sizeof(struct fc_rdp_opd_sfp_desc);
}
-int
+uint32_t
lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
{
if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
@@ -4914,7 +4928,7 @@
return sizeof(struct fc_fec_rdp_desc);
}
-void
+uint32_t
lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
{
uint16_t rdp_cap = 0;
@@ -4973,9 +4987,10 @@
desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
desc->length = cpu_to_be32(sizeof(desc->info));
+ return sizeof(struct fc_rdp_port_speed_desc);
}
-void
+uint32_t
lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
struct lpfc_hba *phba)
{
@@ -4989,9 +5004,10 @@
sizeof(desc->port_names.wwpn));
desc->length = cpu_to_be32(sizeof(desc->port_names));
+ return sizeof(struct fc_rdp_port_name_desc);
}
-void
+uint32_t
lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
@@ -5012,6 +5028,7 @@
}
desc->length = cpu_to_be32(sizeof(desc->port_names));
+ return sizeof(struct fc_rdp_port_name_desc);
}
void
@@ -5026,9 +5043,9 @@
uint8_t *pcmd;
struct ls_rjt *stat;
struct fc_rdp_res_frame *rdp_res;
- uint32_t cmdsize;
+ uint32_t cmdsize, len;
uint16_t *flag_ptr;
- int rc, fec_size;
+ int rc;
if (status != SUCCESS)
goto error;
@@ -5066,38 +5083,54 @@
phba->sfp_warning |= *flag_ptr;
/* For RDP payload */
- lpfc_rdp_res_link_service(&rdp_res->link_service_desc, ELS_CMD_RDP);
+ len = 8;
+ len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
+ (len + pcmd), ELS_CMD_RDP);
- lpfc_rdp_res_sfp_desc(&rdp_res->sfp_desc,
+ len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
rdp_context->page_a0, rdp_context->page_a2);
- lpfc_rdp_res_speed(&rdp_res->portspeed_desc, phba);
- lpfc_rdp_res_link_error(&rdp_res->link_error_desc,
- &rdp_context->link_stat);
- lpfc_rdp_res_diag_port_names(&rdp_res->diag_port_names_desc, phba);
- lpfc_rdp_res_attach_port_names(&rdp_res->attached_port_names_desc,
- vport, ndlp);
- lpfc_rdp_res_bbc_desc(&rdp_res->bbc_desc, &rdp_context->link_stat,
- vport);
- lpfc_rdp_res_oed_temp_desc(phba, &rdp_res->oed_temp_desc,
- rdp_context->page_a2);
- lpfc_rdp_res_oed_voltage_desc(phba, &rdp_res->oed_voltage_desc,
- rdp_context->page_a2);
- lpfc_rdp_res_oed_txbias_desc(phba, &rdp_res->oed_txbias_desc,
- rdp_context->page_a2);
- lpfc_rdp_res_oed_txpower_desc(phba, &rdp_res->oed_txpower_desc,
- rdp_context->page_a2);
- lpfc_rdp_res_oed_rxpower_desc(phba, &rdp_res->oed_rxpower_desc,
- rdp_context->page_a2);
- lpfc_rdp_res_opd_desc(&rdp_res->opd_desc, rdp_context->page_a0, vport);
- fec_size = lpfc_rdp_res_fec_desc(&rdp_res->fec_desc,
+ len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
+ phba);
+ len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
+ (len + pcmd), &rdp_context->link_stat);
+ len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
+ (len + pcmd), phba);
+ len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
+ (len + pcmd), vport, ndlp);
+ len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
&rdp_context->link_stat);
- rdp_res->length = cpu_to_be32(fec_size + RDP_DESC_PAYLOAD_SIZE);
+ /* Check if nport is logged, BZ190632 */
+ if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
+ goto lpfc_skip_descriptor;
+
+ len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
+ &rdp_context->link_stat, vport);
+ len += lpfc_rdp_res_oed_temp_desc(phba,
+ (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
+ rdp_context->page_a2);
+ len += lpfc_rdp_res_oed_voltage_desc(phba,
+ (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
+ rdp_context->page_a2);
+ len += lpfc_rdp_res_oed_txbias_desc(phba,
+ (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
+ rdp_context->page_a2);
+ len += lpfc_rdp_res_oed_txpower_desc(phba,
+ (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
+ rdp_context->page_a2);
+ len += lpfc_rdp_res_oed_rxpower_desc(phba,
+ (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
+ rdp_context->page_a2);
+ len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
+ rdp_context->page_a0, vport);
+
+lpfc_skip_descriptor:
+ rdp_res->length = cpu_to_be32(len - 8);
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
/* Now that we know the true size of the payload, update the BPL */
bpl = (struct ulp_bde64 *)
(((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
- bpl->tus.f.bdeSize = (fec_size + RDP_DESC_PAYLOAD_SIZE + 8);
+ bpl->tus.f.bdeSize = len;
bpl->tus.f.bdeFlags = 0;
bpl->tus.w = le32_to_cpu(bpl->tus.w);