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[174.67.196.173]) by smtp.gmail.com with ESMTPSA id i17sm8153163pfd.84.2021.04.11.18.32.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Apr 2021 18:32:05 -0700 (PDT) From: James Smart To: linux-scsi@vger.kernel.org Cc: James Smart , Justin Tee Subject: [PATCH v2 10/16] lpfc: Fix lpfc_hdw_queue attribute being ignored Date: Sun, 11 Apr 2021 18:31:21 -0700 Message-Id: <20210412013127.2387-11-jsmart2021@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210412013127.2387-1-jsmart2021@gmail.com> References: <20210412013127.2387-1-jsmart2021@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The lpfc_hdw_queue attribute is to set the number of hardware queues to be created on the adapter. Normally, the value is set to a default, which allows the hw queue count to be sized dynamically based on adapter capabilities, cpu/platform architecture, or cpu type. Currently, when lpfc_hdw_queue is set to a specific value, is has no effect and the dynamic sizing occurs. The routine checking whether parameters are default or not ignores the lpfc_hdw_queue setting and invokes the dynamic logic. Fix the routine to additionally check the lpfc_hdw_queue attribute value before using dynamic scaling. Additionally, SLI-3 supports only a small number of queues with dedicated functions, thus it needs to be exempted from the variable scaling and set to the expected values. Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_attr.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index b253be355b4f..b703fe3b606e 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -5815,7 +5815,9 @@ lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) } /* Check if default setting was passed */ - if (val == LPFC_IRQ_CHANN_DEF) + if (val == LPFC_IRQ_CHANN_DEF && + phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && + phba->sli_rev == LPFC_SLI_REV4) lpfc_assign_default_irq_chann(phba); if (phba->irq_chann_mode != NORMAL_MODE) { @@ -5854,7 +5856,12 @@ lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; return -EINVAL; } - phba->cfg_irq_chann = val; + if (phba->sli_rev == LPFC_SLI_REV4) { + phba->cfg_irq_chann = val; + } else { + phba->cfg_irq_chann = 2; + phba->cfg_hdw_queue = 1; + } } return 0; @@ -7411,7 +7418,8 @@ lpfc_get_cfgparam(struct lpfc_hba *phba) phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; if (phba->cfg_irq_chann == 0) phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; - if (phba->cfg_irq_chann > phba->cfg_hdw_queue) + if (phba->cfg_irq_chann > phba->cfg_hdw_queue && + phba->sli_rev == LPFC_SLI_REV4) phba->cfg_irq_chann = phba->cfg_hdw_queue; phba->cfg_soft_wwnn = 0L;