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Message-ID: <20150805150153.10f054ed@fr-ThinkPad-W520>
Date: Wed, 5 Aug 2015 15:01:53 +0400
From: Ivan Mikhaylov <ivan@...ibm.com>
To: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
"David S. Miller" <davem@...emloft.net>,
Ben Hutchings <ben@...adent.org.uk>
Subject: [PATCH v2 1/2] ethtool: changes of emac_regs structure accordingly
within driver emac_regs structure.
* do the redefinition of emac_regs struct from driver structure perspective
and passing size from actual struct size, not from memory area variable
which set in dts file.
* passing variable from dts option may cause a problem with output below
MII's section which we're fixing with this and 5369c71 commit in kernel.
Signed-off-by: Ivan Mikhaylov <ivan@...ibm.com>
---
ibm_emac.c | 101 +++++++++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 73 insertions(+), 28 deletions(-)
diff --git a/ibm_emac.c b/ibm_emac.c
index e128e48..da6c28e 100644
--- a/ibm_emac.c
+++ b/ibm_emac.c
@@ -32,35 +32,78 @@ struct emac_ethtool_regs_subhdr {
};
struct emac_regs {
- u32 mr0;
- u32 mr1;
- u32 tmr0;
- u32 tmr1;
- u32 rmr;
- u32 isr;
- u32 iser;
- u32 iahr;
- u32 ialr;
- u32 vtpid;
- u32 vtci;
- u32 ptr;
- u32 iaht1;
- u32 iaht2;
- u32 iaht3;
- u32 iaht4;
- u32 gaht1;
- u32 gaht2;
- u32 gaht3;
- u32 gaht4;
+ /* Common registers across all EMAC implementations. */
+ u32 mr0; /* Special */
+ u32 mr1; /* Reset */
+ u32 tmr0; /* Special */
+ u32 tmr1; /* Special */
+ u32 rmr; /* Reset */
+ u32 isr; /* Always */
+ u32 iser; /* Reset */
+ u32 iahr; /* Reset, R, T */
+ u32 ialr; /* Reset, R, T */
+ u32 vtpid; /* Reset, R, T */
+ u32 vtci; /* Reset, R, T */
+ u32 ptr; /* Reset, T */
+ union {
+ /* Registers unique to EMAC4 implementations */
+ struct {
+ u32 iaht1; /* Reset, R */
+ u32 iaht2; /* Reset, R */
+ u32 iaht3; /* Reset, R */
+ u32 iaht4; /* Reset, R */
+ u32 gaht1; /* Reset, R */
+ u32 gaht2; /* Reset, R */
+ u32 gaht3; /* Reset, R */
+ u32 gaht4; /* Reset, R */
+ } emac4;
+ /* Registers unique to EMAC4SYNC implementations */
+ struct {
+ u32 mahr; /* Reset, R, T */
+ u32 malr; /* Reset, R, T */
+ u32 mmahr; /* Reset, R, T */
+ u32 mmalr; /* Reset, R, T */
+ u32 rsvd0[4];
+ } emac4sync;
+ } u0;
+ /* Common registers across all EMAC implementations. */
u32 lsah;
u32 lsal;
- u32 ipgvr;
- u32 stacr;
- u32 trtr;
- u32 rwmr;
+ u32 ipgvr; /* Reset, T */
+ u32 stacr; /* Special */
+ u32 trtr; /* Special */
+ u32 rwmr; /* Reset */
u32 octx;
u32 ocrx;
- u32 ipcr;
+ union {
+ /* Registers unique to EMAC4 implementations */
+ struct {
+ u32 ipcr;
+ } emac4;
+ /* Registers unique to EMAC4SYNC implementations */
+ struct {
+ u32 rsvd1;
+ u32 revid;
+ u32 rsvd2[2];
+ u32 iaht1; /* Reset, R */
+ u32 iaht2; /* Reset, R */
+ u32 iaht3; /* Reset, R */
+ u32 iaht4; /* Reset, R */
+ u32 iaht5; /* Reset, R */
+ u32 iaht6; /* Reset, R */
+ u32 iaht7; /* Reset, R */
+ u32 iaht8; /* Reset, R */
+ u32 gaht1; /* Reset, R */
+ u32 gaht2; /* Reset, R */
+ u32 gaht3; /* Reset, R */
+ u32 gaht4; /* Reset, R */
+ u32 gaht5; /* Reset, R */
+ u32 gaht6; /* Reset, R */
+ u32 gaht7; /* Reset, R */
+ u32 gaht8; /* Reset, R */
+ u32 tpc; /* Reset, T */
+ } emac4sync;
+ } u1;
};
struct mal_regs {
@@ -132,12 +175,14 @@ static void *print_emac_regs(void *buf)
p->trtr, p->rwmr,
p->iahr, p->ialr,
p->lsah, p->lsal,
- p->iaht1, p->iaht2, p->iaht3, p->iaht4,
- p->gaht1, p->gaht2, p->gaht3, p->gaht4,
+ p->u0.emac4.iaht1, p->u0.emac4.iaht2, p->u0.emac4.iaht3,
+ p->u0.emac4.iaht4,
+ p->u0.emac4.gaht1, p->u0.emac4.gaht2, p->u0.emac4.gaht3,
+ p->u0.emac4.gaht4,
p->vtpid, p->vtci, p->ipgvr, p->stacr, p->octx, p->ocrx);
if (hdr->version)
- printf(" IPCR = 0x%08x\n\n", p->ipcr);
+ printf(" IPCR = 0x%08x\n\n", p->u1.emac4.ipcr);
else {
printf("\n\n");
res -= sizeof(u32);
--
1.7.9.5
--
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