Expand I/O channel support for large systems
Signed-off-by: James Smart <james.sm...@emulex.com>
---
lpfc_init.c | 40 +++++++++++++++++++++-------------------
lpfc_sli4.h | 4 +---
2 files changed, 22 insertions(+), 22 deletions(-)
diff -upNr a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
--- a/drivers/scsi/lpfc/lpfc_init.c 2012-09-26 20:19:47.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc_init.c 2012-09-26 21:11:36.039153900 -0400
@@ -4947,7 +4947,7 @@ lpfc_sli4_driver_resource_setup(struct l
}
phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
- phba->sli4_hba.cfg_eqn), GFP_KERNEL);
+ phba->cfg_fcp_io_channel), GFP_KERNEL);
if (!phba->sli4_hba.msix_entries) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2573 Failed allocate memory for msi-x "
@@ -6559,7 +6559,8 @@ lpfc_sli4_queue_verify(struct lpfc_hba *
i++;
}
if (i < cfg_fcp_io_channel) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ lpfc_printf_log(phba,
+ KERN_ERR, LOG_INIT,
"3188 Reducing IO channels to match number of "
"CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
cfg_fcp_io_channel = i;
@@ -6567,8 +6568,8 @@ lpfc_sli4_queue_verify(struct lpfc_hba *
if (cfg_fcp_io_channel >
phba->sli4_hba.max_cfg_param.max_eq) {
- cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
- if (cfg_fcp_io_channel < LPFC_FCP_IO_CHAN_MIN) {
+ if (phba->sli4_hba.max_cfg_param.max_eq <
+ LPFC_FCP_IO_CHAN_MIN) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2574 Not enough EQs (%d) from the "
"pci function for supporting FCP "
@@ -6577,13 +6578,12 @@ lpfc_sli4_queue_verify(struct lpfc_hba *
phba->cfg_fcp_io_channel);
goto out_error;
}
- lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
- "2575 Not enough EQs (%d) from the pci "
- "function for supporting the requested "
- "FCP EQs (%d), the actual FCP EQs can "
- "be supported: %d\n",
- phba->sli4_hba.max_cfg_param.max_eq,
- phba->cfg_fcp_io_channel, cfg_fcp_io_channel);
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2575 Reducing IO channels to match number of "
+ "available EQs: from %d to %d\n",
+ cfg_fcp_io_channel,
+ phba->sli4_hba.max_cfg_param.max_eq);
+ cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
}
/* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
@@ -6592,7 +6592,6 @@ lpfc_sli4_queue_verify(struct lpfc_hba *
phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
- phba->sli4_hba.cfg_eqn = cfg_fcp_io_channel;
/* Get EQ depth from module parameter, fake the default for now */
phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
@@ -8095,11 +8094,11 @@ lpfc_sli4_enable_msix(struct lpfc_hba *p
int vectors, rc, index;
/* Set up MSI-X multi-message vectors */
- for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
+ for (index = 0; index < phba->cfg_fcp_io_channel; index++)
phba->sli4_hba.msix_entries[index].entry = index;
/* Configure MSI-X capability structure */
- vectors = phba->sli4_hba.cfg_eqn;
+ vectors = phba->cfg_fcp_io_channel;
enable_msix_vectors:
rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
vectors);
@@ -8142,8 +8141,14 @@ enable_msix_vectors:
goto cfg_fail_out;
}
}
- phba->sli4_hba.msix_vec_nr = vectors;
+ if (vectors != phba->cfg_fcp_io_channel) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "3238 Reducing IO channels to match number of "
+ "MSI-X vectors, requested %d got %d\n",
+ phba->cfg_fcp_io_channel, vectors);
+ phba->cfg_fcp_io_channel = vectors;
+ }
return rc;
cfg_fail_out:
@@ -8171,7 +8176,7 @@ lpfc_sli4_disable_msix(struct lpfc_hba *
int index;
/* Free up MSI-X multi-message vectors */
- for (index = 0; index < phba->sli4_hba.msix_vec_nr; index++)
+ for (index = 0; index < phba->cfg_fcp_io_channel; index++)
free_irq(phba->sli4_hba.msix_entries[index].vector,
&phba->sli4_hba.fcp_eq_hdl[index]);
@@ -9525,9 +9530,6 @@ lpfc_pci_probe_one_s4(struct pci_dev *pd
/* Default to single EQ for non-MSI-X */
if (phba->intr_type != MSIX)
adjusted_fcp_io_channel = 1;
- else if (phba->sli4_hba.msix_vec_nr <
- phba->cfg_fcp_io_channel)
- adjusted_fcp_io_channel = phba->sli4_hba.msix_vec_nr;
else
adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
diff -upNr a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
--- a/drivers/scsi/lpfc/lpfc_sli4.h 2012-09-26 21:11:18.456153500 -0400
+++ b/drivers/scsi/lpfc/lpfc_sli4.h 2012-09-26 21:11:36.040153900 -0400
@@ -37,7 +37,7 @@
/* Multi-queue arrangement for FCP EQ/CQ/WQ tuples */
#define LPFC_FCP_IO_CHAN_DEF 4
#define LPFC_FCP_IO_CHAN_MIN 1
-#define LPFC_FCP_IO_CHAN_MAX 8
+#define LPFC_FCP_IO_CHAN_MAX 16
/*
* Provide the default FCF Record attributes used by the driver
@@ -490,8 +490,6 @@ struct lpfc_sli4_hba {
struct lpfc_pc_sli4_params pc_sli4_params;
struct msix_entry *msix_entries;
uint8_t handler_name[LPFC_FCP_IO_CHAN_MAX][LPFC_SLI4_HANDLER_NAME_SZ];
- uint32_t cfg_eqn;
- uint32_t msix_vec_nr;
struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
/* Pointers to the constructed SLI4 queues */
--
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