From: "tip-bot2 for Nitesh Narayan Lal" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Nitesh Narayan Lal <nitesh@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
James Smart <jsmart2021@gmail.com>,
x86@kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org
Subject: [tip: irq/core] scsi: lpfc: Use irq_set_affinity()
Date: Fri, 10 Dec 2021 19:54:03 -0000 [thread overview]
Message-ID: <163916604383.23020.16524606796134796447.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20210903152430.244937-12-nitesh@redhat.com>
The following commit has been merged into the irq/core branch of tip:
Commit-ID: ce5a58a96ccc241c6e5cbb3360494ddfaf118afe
Gitweb: https://git.kernel.org/tip/ce5a58a96ccc241c6e5cbb3360494ddfaf118afe
Author: Nitesh Narayan Lal <nitesh@redhat.com>
AuthorDate: Fri, 03 Sep 2021 11:24:27 -04:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Fri, 10 Dec 2021 20:47:39 +01:00
scsi: lpfc: Use irq_set_affinity()
The driver uses irq_set_affinity_hint to set the affinity for the lpfc
interrupts to a mask corresponding to the local NUMA node to avoid
performance overhead on AMD architectures.
However, irq_set_affinity_hint() setting the affinity is an undocumented
side effect that this function also sets the affinity under the hood.
To remove this side effect irq_set_affinity_hint() has been marked as
deprecated and new interfaces have been introduced.
Also, as per the commit dcaa21367938 ("scsi: lpfc: Change default IRQ model
on AMD architectures"):
"On AMD architecture, revert the irq allocation to the normal style
(non-managed) and then use irq_set_affinity_hint() to set the cpu affinity
and disable user-space rebalancing."
we don't really need to set the affinity_hint as user-space rebalancing for
the lpfc interrupts is not desired.
Hence, replace the irq_set_affinity_hint() with irq_set_affinity() which
only applies the affinity for the interrupts.
Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Link: https://lore.kernel.org/r/20210903152430.244937-12-nitesh@redhat.com
---
drivers/scsi/lpfc/lpfc_init.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index ba17a8f..9457552 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -12709,7 +12709,7 @@ lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
cpumask_clear(&eqhdl->aff_mask);
cpumask_set_cpu(cpu, &eqhdl->aff_mask);
irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
- irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
+ irq_set_affinity(eqhdl->irq, &eqhdl->aff_mask);
}
/**
@@ -12998,7 +12998,6 @@ cfg_fail_out:
for (--index; index >= 0; index--) {
eqhdl = lpfc_get_eq_hdl(index);
lpfc_irq_clear_aff(eqhdl);
- irq_set_affinity_hint(eqhdl->irq, NULL);
free_irq(eqhdl->irq, eqhdl);
}
@@ -13159,7 +13158,6 @@ lpfc_sli4_disable_intr(struct lpfc_hba *phba)
for (index = 0; index < phba->cfg_irq_chann; index++) {
eqhdl = lpfc_get_eq_hdl(index);
lpfc_irq_clear_aff(eqhdl);
- irq_set_affinity_hint(eqhdl->irq, NULL);
free_irq(eqhdl->irq, eqhdl);
}
} else {
next prev parent reply other threads:[~2021-12-10 19:54 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-03 15:24 [PATCH v6 00/14] genirq: Cleanup the abuse of irq_set_affinity_hint() Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 01/14] genirq: Provide new interfaces for affinity hints Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 02/14] iavf: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] iavf: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 03/14] i40e: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] i40e: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 04/14] scsi: megaraid_sas: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] scsi: megaraid_sas: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 05/14] scsi: mpt3sas: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] scsi: mpt3sas: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 06/14] RDMA/irdma: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] RDMA/irdma: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 07/14] enic: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] enic: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 08/14] be2net: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] be2net: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 09/14] ixgbe: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] ixgbe: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 10/14] mailbox: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] mailbox: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 11/14] scsi: lpfc: Use irq_set_affinity Nitesh Narayan Lal
2021-12-10 19:54 ` tip-bot2 for Nitesh Narayan Lal [this message]
2021-09-03 15:24 ` [PATCH v6 12/14] hinic: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] hinic: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 13/14] net/mlx5: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] net/mlx5: Use irq_set_affinity_and_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-03 15:24 ` [PATCH v6 14/14] net/mlx4: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-12-10 19:54 ` [tip: irq/core] net/mlx4: Use irq_update_affinity_hint() tip-bot2 for Nitesh Narayan Lal
2021-09-13 14:34 ` [PATCH v6 00/14] genirq: Cleanup the abuse of irq_set_affinity_hint() Nitesh Lal
2021-11-24 19:30 ` Thomas Gleixner
2021-11-24 22:16 ` Nitesh Lal
2021-12-10 13:51 ` Nitesh Lal
2021-12-10 18:44 ` Thomas Gleixner
2021-12-10 18:54 ` Nitesh Lal
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