Date: Mon, 28 Dec 2009 16:37:35 -0800 From: Pyun YongHyeon <pyunyh@gmail.com> To: Olivier Cochard-Labb? <olivier@cochard.me> Cc: stable@freebsd.org Subject: Re: FreeBSD 8.0: can't PXE Boot using nvidia nForce4 network card Message-ID: <20091229003735.GD1166@michelle.cdnetworks.com> In-Reply-To: <3131aa530912281622v3a4a15c5r38766eed989ff30e@mail.gmail.com> References: <3131aa530912230507q5abd0a9eh1f22ac858518268f@mail.gmail.com> <20091224193320.GD8146@michelle.cdnetworks.com> <3131aa530912281330t34032ad5he5fe7720b4d2744a@mail.gmail.com> <20091228222140.GC1166@michelle.cdnetworks.com> <3131aa530912281622v3a4a15c5r38766eed989ff30e@mail.gmail.com>
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On Tue, Dec 29, 2009 at 01:22:40AM +0100, Olivier Cochard-Labb? wrote:
> On Mon, Dec 28, 2009 at 11:21 PM, Pyun YongHyeon <pyunyh@gmail.com> wrote:
>
> > Ok, it seems Linux forcedeth driver seems to poke NFE_STATUS
> > register before accessing PHY. I'm not sure whether this code could
> > be related with the issue but would you try attached patch?
> >
>
> Allready a patch to try! Thanks for your reactivity!
>
> The patch was applyed successfully and new kernel compiled/installed
> without problem but same error message:
>
> FreeBSD 8.0-STABLE #4: Mon Dec 28 23:48:36 CET 2009
> root@debugger.bsdrp.net:/usr/obj/usr/src/sys/GENERIC i386
> (...)
> nfe0: <NVIDIA nForce4 CK804 MCP8 Networking Adapter> irq 21 at device
> 10.0 on pci0
> nfe0: Lazy allocation of 0x1000000 bytes rid 0x10 type 3 at 0x81000000
> nfe0: Reserved 0x1000000 bytes for rid 0x10 type 3 at 0x81000000
> nfe0: MII without any phy!
> device_attach: nfe0 attach returned 6
> (...)
> Trying to mount root from nfs:10.0.0.1:/usr/tftpboot
> nfs_diskless: no interface
> ROOT MOUNT ERROR:
> (...)
>
:-(
How about this one? Sorry, I'm just guessing(no hardware, no
documentation).
> Regards,
>
> Olivier
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Index: sys/dev/nfe/if_nfe.c
===================================================================
--- sys/dev/nfe/if_nfe.c (revision 201135)
+++ sys/dev/nfe/if_nfe.c (working copy)
@@ -340,6 +340,7 @@
struct nfe_softc *sc;
struct ifnet *ifp;
bus_addr_t dma_addr_max;
+ uint32_t phystat, phyrestore;
int error = 0, i, msic, reg, rid;
sc = device_get_softc(dev);
@@ -349,6 +350,7 @@
MTX_DEF);
callout_init_mtx(&sc->nfe_stat_ch, &sc->nfe_mtx, 0);
TASK_INIT(&sc->nfe_link_task, 0, nfe_link_task, sc);
+ phyrestore = 0;
pci_enable_busmaster(dev);
@@ -513,6 +515,8 @@
break;
}
+ NFE_READ(sc, NFE_WOL_CTL);
+ NFE_WRITE(sc, NFE_WOL_CTL, 0);
nfe_power(sc);
/* Check for reversed ethernet address */
if ((NFE_READ(sc, NFE_TX_UNK) & NFE_MAC_ADDR_INORDER) != 0)
@@ -599,6 +603,14 @@
ifp->if_capabilities |= IFCAP_POLLING;
#endif
+ phystat = NFE_READ(sc, NFE_STATUS) & NFE_STATUS_RUNNING;
+ if ((phystat & NFE_STATUS_RUNNING) != 0) {
+ phystat &= ~NFE_STATUS_RUNNING;
+ NFE_WRITE(sc, NFE_STATUS, phystat);
+ phyrestore = 1;
+ }
+ NFE_WRITE(sc, NFE_PHY_STATUS, 0xf);
+
/* Do MII setup */
if (mii_phy_probe(dev, &sc->nfe_miibus, nfe_ifmedia_upd,
nfe_ifmedia_sts)) {
@@ -636,8 +648,11 @@
}
fail:
- if (error)
+ if (error) {
+ if (phyrestore != 0)
+ NFE_WRITE(sc, NFE_STATUS, phystat | NFE_STATUS_RUNNING);
nfe_detach(dev);
+ }
return (error);
}
@@ -2744,7 +2759,8 @@
NFE_WRITE(sc, NFE_SETUP_R6, NFE_R6_MAGIC);
/* update MAC knowledge of PHY; generates a NFE_IRQ_LINK interrupt */
- NFE_WRITE(sc, NFE_STATUS, sc->mii_phyaddr << 24 | NFE_STATUS_MAGIC);
+ NFE_WRITE(sc, NFE_STATUS, sc->mii_phyaddr << NFE_STATUS_PHYSHIFT |
+ NFE_STATUS_PHYVALID | NFE_STATUS_RUNNING);
NFE_WRITE(sc, NFE_SETUP_R4, NFE_R4_MAGIC);
NFE_WRITE(sc, NFE_WOL_CTL, NFE_WOL_MAGIC);
Index: sys/dev/nfe/if_nfereg.h
===================================================================
--- sys/dev/nfe/if_nfereg.h (revision 201135)
+++ sys/dev/nfe/if_nfereg.h (working copy)
@@ -137,7 +137,11 @@
#define NFE_PHY_BUSY 0x08000
#define NFE_PHYADD_SHIFT 5
-#define NFE_STATUS_MAGIC 0x140000
+#define NFE_STATUS_START 0x00000002
+#define NFE_STATUS_LINKUP 0x00000004
+#define NFE_STATUS_PHYVALID 0x00040000
+#define NFE_STATUS_RUNNING 0x00100000
+#define NFE_STATUS_PHYSHIFT 24
#define NFE_R1_MAGIC_1000 0x14050f
#define NFE_R1_MAGIC_10_100 0x16070f
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