Date: Fri, 20 Aug 2010 10:40:22 -0700 From: Pyun YongHyeon <pyunyh@gmail.com> To: Nikola Kalpazanov <n.kalpazanov@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: P811B Quad Port NIC problem. Message-ID: <20100820174022.GA21062@michelle.cdnetworks.com> In-Reply-To: <AANLkTikSyTyzaP0zt6SaSsJDvbUGwj=neeObgq=_%2Bfp3@mail.gmail.com> References: <AANLkTikSyTyzaP0zt6SaSsJDvbUGwj=neeObgq=_%2Bfp3@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--x+6KMIRAuhnl3hBn
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
On Fri, Aug 20, 2010 at 01:44:20PM +0200, Nikola Kalpazanov wrote:
> Hi,
>
> First I want to start with the note that I know Realtek is no good,
> yet I will appreciate any assistance that you may provide.
>
> here are details of the problem:
>
> P811B is 4 port Ethernet card with built-in mini-PCI slot where I have
> attached Atheros 802.11a/b/g/n Wireless PCI Adapter (AR5416).
> That also requires to disable 4th port from the jumpers on the card.
>
> I have installed FreeBSD 8.1-RELEASE i386
>
> pciconf -vlb
>
> pcib6@pci0:5:0:0: class=0x060400 card=0x00000000 chip=0x814812d8
> rev=0x00 hdr=0x01
> vendor = 'Pericom Semiconductor'
> class = bridge
> subclass = PCI-PCI
> rl0@pci0:6:8:0: class=0x020000 card=0x813910ec chip=0x813910ec rev=0x10 hdr=0x00
> vendor = 'Realtek Semiconductor'
> device = 'Realtek RTL8139 Family PCI Fast Ethernet NIC
> (RTL-8139/8139C/8139D)'
> class = network
> subclass = ethernet
> bar [14] = type Memory, range 32, base 0xe0110200, size 256, enabled
> rl1@pci0:6:9:0: class=0x020000 card=0x813910ec chip=0x813910ec rev=0x10 hdr=0x00
> vendor = 'Realtek Semiconductor'
> device = 'Realtek RTL8139 Family PCI Fast Ethernet NIC
> (RTL-8139/8139C/8139D)'
> class = network
> subclass = ethernet
> bar [14] = type Memory, range 32, base 0xe0110100, size 256, enabled
> rl2@pci0:6:10:0: class=0x020000 card=0x813910ec chip=0x813910ec
> rev=0x10 hdr=0x00
> vendor = 'Realtek Semiconductor'
> device = 'Realtek RTL8139 Family PCI Fast Ethernet NIC
> (RTL-8139/8139C/8139D)'
> class = network
> subclass = ethernet
> bar [10] = type I/O Port, range 32, base 0x1000, size 256, enabled
> bar [14] = type Memory, range 32, base 0xe0110000, size 256, enabled
> ath0@pci0:6:11:0: class=0x028000 card=0x2071168c chip=0x0023168c
> rev=0x01 hdr=0x00
> vendor = 'Atheros Communications Inc.'
> device = '802.11a/b/g/n Wireless PCI Adapter (AR5416)'
> class = network
> bar [10] = type Memory, range 32, base 0xe0100000, size 65536, enabled
>
>
>
> dmesg
>
> rl0: <RealTek 8139 10/100BaseTX> port 0x1200-0x12ff mem
> 0xe0110200-0xe01102ff irq 21 at device 8.0 on pci6
> rl0: reset never completed!
> rl0: unknown device ID: ffff assuming 8139
> rl0: MII without any phy!
> device_attach: rl0 attach returned 6
> rl1: <RealTek 8139 10/100BaseTX> port 0x1100-0x11ff mem
> 0xe0110100-0xe01101ff irq 22 at device 9.0 on pci6
> rl1: reset never completed!
> rl1: unknown device ID: ffff assuming 8139
> rl1: MII without any phy!
> device_attach: rl1 attach returned 6
> rl2: <RealTek 8139 10/100BaseTX> port 0x1000-0x10ff mem
> 0xe0110000-0xe01100ff irq 23 at device 10.0 on pci6
> miibus1: <MII bus> on rl2
> rlphy0: <RealTek internal media interface> PHY 0 on miibus1
> rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> rl2: Ethernet address: 00:06:4f:67:08:f5
> rl2: [ITHREAD]
> rl2: link state changed to DOWN
>
>
> ath0 works fine
> rl2 works fine
>
> rl0 and rl1 don't and of course as you may suspect they are missing
> from ifconfig -a
>
> if I remove the miniPCI Atheros and enable 4th port it is the same
> picture but this time 4th port rl3 works fine and rl0, rl1, and rl2
> don't in the same way.
>
> Any suggestions will be much appreciated.
What makes me wonder is that both pci0:6:8:0 and pci0:6:9:0 has no
I/O BAR. I never saw these kind of thing on rl(4) controllers.
And I can't explain how rl(4) could successfully map the I/O with
non-existing I/O BAR.
Anyway would you try attached patch and let me know whether it
makes any difference? Also add the following line to
/boot/device.hints to have rl(4) use memory mapped mapping.
hint.rl.0.prefer_iomap="0"
--x+6KMIRAuhnl3hBn
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment; filename="rl.map.diff"
Index: sys/pci/if_rl.c
===================================================================
--- sys/pci/if_rl.c (revision 211528)
+++ sys/pci/if_rl.c (working copy)
@@ -225,14 +225,6 @@
static void rl_setwol(struct rl_softc *);
static void rl_clrwol(struct rl_softc *);
-#ifdef RL_USEIOSPACE
-#define RL_RES SYS_RES_IOPORT
-#define RL_RID RL_PCI_LOIO
-#else
-#define RL_RES SYS_RES_MEMORY
-#define RL_RID RL_PCI_LOMEM
-#endif
-
static device_method_t rl_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, rl_probe),
@@ -806,7 +798,7 @@
struct sysctl_ctx_list *ctx;
struct sysctl_oid_list *children;
int error = 0, hwrev, i, pmc, rid;
- int unit;
+ int prefer_iomap, unit;
uint16_t rl_did = 0;
char tn[32];
@@ -828,10 +820,31 @@
pci_enable_busmaster(dev);
- /* Map control/status registers. */
- rid = RL_RID;
- sc->rl_res = bus_alloc_resource_any(dev, RL_RES, &rid, RF_ACTIVE);
+ /*
+ * Map control/status registers.
+ * Default to using PIO access for this driver. On SMP systems,
+ * there appear to be problems with memory mapped mode: it looks
+ * like doing too many memory mapped access back to back in rapid
+ * succession can hang the bus. I'm inclined to blame this on
+ * crummy design/construction on the part of RealTek. Memory
+ * mapped mode does appear to work on uniprocessor systems though.
+ */
+ prefer_iomap = 1;
+ resource_int_value(device_get_name(sc->rl_dev),
+ device_get_unit(sc->rl_dev), "prefer_iomap", &prefer_iomap);
+ if (prefer_iomap) {
+ sc->rl_res_id = PCIR_BAR(0);
+ sc->rl_res_type = SYS_RES_IOPORT;
+ sc->rl_res = bus_alloc_resource_any(dev, sc->rl_res_type,
+ &sc->rl_res_id, RF_ACTIVE);
+ }
+ if (prefer_iomap == 0 || sc->rl_res == NULL) {
+ sc->rl_res_id = PCIR_BAR(1);
+ sc->rl_res_type = SYS_RES_MEMORY;
+ sc->rl_res = bus_alloc_resource_any(dev, sc->rl_res_type,
+ &sc->rl_res_id, RF_ACTIVE);
+ }
if (sc->rl_res == NULL) {
device_printf(dev, "couldn't map ports/memory\n");
error = ENXIO;
@@ -1029,7 +1042,8 @@
if (sc->rl_irq[0])
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->rl_irq[0]);
if (sc->rl_res)
- bus_release_resource(dev, RL_RES, RL_RID, sc->rl_res);
+ bus_release_resource(dev, sc->rl_res_type, sc->rl_res_id,
+ sc->rl_res);
if (ifp)
if_free(ifp);
--x+6KMIRAuhnl3hBn--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20100820174022.GA21062>