netdev - qmgr for ixp4xx

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Date:	Tue, 2 Dec 2008 19:44:40 +0100
From:	"Miguel Ángel Álvarez" <gotzoncabanes@...il.com>
To:	netdev@...r.kernel.org, "Krzysztof Halasa" <khc@...waw.pl>
Subject: qmgr for ixp4xx

Hi

As I am trying to use my HSSs as 4E1, I find that the FIFOs for each
HDLC should be 1 word wide and not 4 words wide. I think that this
finally means that when accessing the queues, I have to do the
following modification.

diff -urN linux-2.6.26.7_hssorig/include/asm-arm/arch-ixp4xx/qmgr.h
linux-2.6.26.7/include/asm-arm/arch-ixp4xx/qmgr.h
--- linux-2.6.26.7_hssorig/include/asm-arm/arch-ixp4xx/qmgr.h	2008-10-22
23:46:18.000000000 +0200
+++ linux-2.6.26.7/include/asm-arm/arch-ixp4xx/qmgr.h	2008-12-02
10:47:23.000000000 +0100
@@ -67,16 +67,17 @@
 void qmgr_release_queue(unsigned int queue);


-static inline void qmgr_put_entry(unsigned int queue, u32 val)
+static inline void qmgr_put_entry(unsigned int queue, unsigned int pipe,
+                   u32 val)
 {
 	extern struct qmgr_regs __iomem *qmgr_regs;
-	__raw_writel(val, &qmgr_regs->acc[queue][0]);
+	__raw_writel(val, &qmgr_regs->acc[queue][pipe]);
 }

-static inline u32 qmgr_get_entry(unsigned int queue)
+static inline u32 qmgr_get_entry(unsigned int queue, unsigned int pipe)
 {
 	extern struct qmgr_regs __iomem *qmgr_regs;
-	return __raw_readl(&qmgr_regs->acc[queue][0]);
+	return __raw_readl(&qmgr_regs->acc[queue][pipe]);
 }

 static inline int qmgr_get_stat1(unsigned int queue)

Is it correct?

Thanks

Miguel Ángel Álvarez
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