linux-kernel - [PATCH 3/7] x86, irq: Let msi-x to shown as MSI-X in /proc/interrupt

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Date:	Thu, 26 Jan 2012 23:25:49 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>,
	Suresh Siddha <suresh.b.siddha@...el.com>
Subject: [PATCH 3/7] x86, irq: Let msi-x to shown as MSI-X in /proc/interrupt

Use new added irq_print_chip() to append -X after MSI for msi-x.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
Cc: Suresh Siddha <suresh.b.siddha@...el.com>
---
 arch/x86/kernel/apic/io_apic.c |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index f5c77ff..52618ad 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2628,7 +2628,10 @@ static void ir_ack_apic_level(struct irq_data *data)
 
 static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
 {
-	seq_printf(p, " IR-%s", data->chip->name);
+	seq_printf(p, " IR-%s%s", data->chip->name,
+			data->msi_desc ?
+			 (data->msi_desc->msi_attrib.is_msix ? "-X" : "")
+			 : "");
 }
 
 static void irq_remap_modify_chip_defaults(struct irq_chip *chip)
@@ -3214,6 +3217,14 @@ msi_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
 }
 #endif /* CONFIG_SMP */
 
+static void msi_irq_print_chip(struct irq_data *data, struct seq_file *p)
+{
+	seq_printf(p, " %s%s", data->chip->name,
+			data->msi_desc ?
+			 (data->msi_desc->msi_attrib.is_msix ? "-X" : "")
+			 : "");
+}
+
 /*
  * IRQ Chip for MSI PCI/PCI-X/PCI-Express Devices,
  * which implement the MSI or MSI-X Capability Structure.
@@ -3227,6 +3238,7 @@ static struct irq_chip msi_chip = {
 	.irq_set_affinity	= msi_set_affinity,
 #endif
 	.irq_retrigger		= ioapic_retrigger_irq,
+	.irq_print_chip		= msi_irq_print_chip,
 };
 
 /*
-- 
1.7.7

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