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[src/trunk]: src/sys/dev/pci - Add PCI-X capability stuff.
details: https://anonhg.NetBSD.org/src/rev/2b69f6330373
branches: trunk
changeset: 329592:2b69f6330373
user: msaitoh <msaitoh%NetBSD.org@localhost>
date: Fri May 30 03:42:38 2014 +0000
description:
- Add PCI-X capability stuff.
- remove extra ':' in pci_conf_print_pcie_cap()
- Add comments.
diffstat:
sys/dev/pci/pci_subr.c | 120 +++++++++++++++++++++++++++++++++++++++++++++---
sys/dev/pci/pcireg.h | 102 ++++++++++++++++++++++++++++++-----------
2 files changed, 187 insertions(+), 35 deletions(-)
diffs (truncated from 323 to 300 lines):
diff -r 2cf89fcc5cd3 -r 2b69f6330373 sys/dev/pci/pci_subr.c
--- a/sys/dev/pci/pci_subr.c Fri May 30 03:02:32 2014 +0000
+++ b/sys/dev/pci/pci_subr.c Fri May 30 03:42:38 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pci_subr.c,v 1.121 2014/05/27 16:50:31 msaitoh Exp $ */
+/* $NetBSD: pci_subr.c,v 1.122 2014/05/30 03:42:38 msaitoh Exp $ */
/*
* Copyright (c) 1997 Zubin D. Dittia. All rights reserved.
@@ -40,7 +40,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pci_subr.c,v 1.121 2014/05/27 16:50:31 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pci_subr.c,v 1.122 2014/05/30 03:42:38 msaitoh Exp $");
#ifdef _KERNEL_OPT
#include "opt_pci.h"
@@ -1117,7 +1117,109 @@
}
/* XXX pci_conf_print_cpci_hostwap_cap */
-/* XXX pci_conf_print_pcix_cap */
+
+/*
+ * For both command register and status register.
+ * The argument "idx" is index number (0 to 7).
+ */
+static int
+pcix_split_trans(unsigned int idx)
+{
+ static int table[8] = {
+ 1, 2, 3, 4, 8, 12, 16, 32
+ };
+
+ if (idx >= __arraycount(table))
+ return -1;
+ return table[idx];
+}
+
+static void
+pci_conf_print_pcix_cap(const pcireg_t *regs, int capoff)
+{
+ pcireg_t reg;
+ int isbridge;
+ int i;
+
+ isbridge = (PCI_HDRTYPE_TYPE(regs[o2i(PCI_BHLC_REG)])
+ & PCI_HDRTYPE_PPB) != 0 ? 1 : 0;
+ printf("\n PCI-X %s Capabilities Register\n",
+ isbridge ? "Bridge" : "Non-bridge");
+
+ reg = regs[o2i(capoff)];
+ if (isbridge != 0) {
+ printf(" Secondary status register: 0x%04x\n",
+ (reg & 0xffff0000) >> 16);
+ onoff("64bit device", reg, PCIX_STATUS_64BIT);
+ onoff("133MHz capable", reg, PCIX_STATUS_133);
+ onoff("Split completion discarded", reg, PCIX_STATUS_SPLDISC);
+ onoff("Unexpected split completion", reg, PCIX_STATUS_SPLUNEX);
+ onoff("Split completion overrun", reg, PCIX_BRIDGE_ST_SPLOVRN);
+ onoff("Split request delayed", reg, PCIX_BRIDGE_ST_SPLRQDL);
+ printf(" Secondary clock frequency: 0x%x\n",
+ (reg & PCIX_BRIDGE_2NDST_CLKF)
+ >> PCIX_BRIDGE_2NDST_CLKF_SHIFT);
+ printf(" Version: 0x%x\n",
+ (reg & PCIX_BRIDGE_2NDST_VER_MASK)
+ >> PCIX_BRIDGE_2NDST_VER_SHIFT);
+ onoff("266MHz capable", reg, PCIX_BRIDGE_ST_266);
+ onoff("533MHz capable", reg, PCIX_BRIDGE_ST_533);
+ } else {
+ printf(" Command register: 0x%04x\n",
+ (reg & 0xffff0000) >> 16);
+ onoff("Data Parity Error Recovery", reg,
+ PCIX_CMD_PERR_RECOVER);
+ onoff("Enable Relaxed Ordering", reg, PCIX_CMD_RELAXED_ORDER);
+ printf(" Maximum Burst Read Count: %u\n",
+ PCIX_CMD_BYTECNT(reg));
+ printf(" Maximum Split Transactions: %d\n",
+ pcix_split_trans((reg & PCIX_CMD_SPLTRANS_MASK)
+ >> PCIX_CMD_SPLTRANS_SHIFT));
+ }
+ reg = regs[o2i(capoff+PCIX_STATUS)]; /* Or PCIX_BRIDGE_PRI_STATUS */
+ printf(" %sStatus register: 0x%08x\n",
+ isbridge ? "Bridge " : "", reg);
+ printf(" Function: %d\n", PCIX_STATUS_FN(reg));
+ printf(" Device: %d\n", PCIX_STATUS_DEV(reg));
+ printf(" Bus: %d\n", PCIX_STATUS_BUS(reg));
+ onoff("64bit device", reg, PCIX_STATUS_64BIT);
+ onoff("133MHz capable", reg, PCIX_STATUS_133);
+ onoff("Split completion discarded", reg, PCIX_STATUS_SPLDISC);
+ onoff("Unexpected split completion", reg, PCIX_STATUS_SPLUNEX);
+ if (isbridge != 0) {
+ onoff("Split completion overrun", reg, PCIX_BRIDGE_ST_SPLOVRN);
+ onoff("Split request delayed", reg, PCIX_BRIDGE_ST_SPLRQDL);
+ } else {
+ onoff2("Device Complexity", reg, PCIX_STATUS_DEVCPLX,
+ "bridge device", "simple device");
+ printf(" Designed max memory read byte count: %d\n",
+ 512 << ((reg & PCIX_STATUS_MAXB_MASK)
+ >> PCIX_STATUS_MAXB_SHIFT));
+ printf(" Designed max outstanding split transaction: %d\n",
+ pcix_split_trans((reg & PCIX_STATUS_MAXST_MASK)
+ >> PCIX_STATUS_MAXST_SHIFT));
+ printf(" MAX cumulative Read Size: %u\n",
+ 8 << ((reg & 0x1c000000) >> PCIX_STATUS_MAXRS_SHIFT));
+ onoff("Received split completion error", reg,
+ PCIX_STATUS_SCERR);
+ }
+ onoff("266MHz capable", reg, PCIX_STATUS_266);
+ onoff("533MHz capable", reg, PCIX_STATUS_533);
+
+ if (isbridge == 0)
+ return;
+
+ /* Only for bridge */
+ for (i = 0; i < 2; i++) {
+ reg = regs[o2i(capoff+PCIX_BRIDGE_UP_STCR + (4 * i))];
+ printf(" %s split transaction control register: 0x%08x\n",
+ (i == 0) ? "Upstream" : "Downstream", reg);
+ printf(" Capacity: %d\n", reg & PCIX_BRIDGE_STCAP);
+ printf(" Commitment Limit: %d\n",
+ (reg & PCIX_BRIDGE_STCLIM) >> PCIX_BRIDGE_STCLIM_SHIFT);
+ }
+}
+
/* XXX pci_conf_print_ldt_cap */
/* XXX pci_conf_print_vendspec_cap */
@@ -1329,8 +1431,8 @@
pci_print_pcie_L0s_latency((reg & PCIE_DCAP_L0S_LATENCY) >> 6);
printf(" Endpoint L1 Acceptable Latency: ");
pci_print_pcie_L1_latency((reg & PCIE_DCAP_L1_LATENCY) >> 9);
- onoff("Attention Button Present:", reg, PCIE_DCAP_ATTN_BUTTON);
- onoff("Attention Indicator Present:", reg, PCIE_DCAP_ATTN_IND);
+ onoff("Attention Button Present", reg, PCIE_DCAP_ATTN_BUTTON);
+ onoff("Attention Indicator Present", reg, PCIE_DCAP_ATTN_IND);
onoff("Power Indicator Present", reg, PCIE_DCAP_PWR_IND);
onoff("Role-Based Error Report", reg, PCIE_DCAP_ROLE_ERR_RPT);
printf(" Captured Slot Power Limit Value: %d\n",
@@ -1745,8 +1847,8 @@
{
int off;
pcireg_t rval;
- int pcie_off = -1, pcipm_off = -1, msi_off = -1, vendspec_off = -1;
- int msix_off = -1;
+ int pcie_off = -1, pcipm_off = -1, msi_off = -1, pcix_off = -1;
+ int vendspec_off = -1, msix_off = -1;
int debugport_off = -1, subsystem_off = -1, pciaf_off = -1;
for (off = PCI_CAPLIST_PTR(regs[o2i(capoff)]);
@@ -1784,6 +1886,7 @@
printf("CompactPCI Hot-swapping");
break;
case PCI_CAP_PCIX:
+ pcix_off = off;
printf("PCI-X");
break;
case PCI_CAP_LDT:
@@ -1841,7 +1944,8 @@
if (msi_off != -1)
pci_conf_print_msi_cap(regs, msi_off);
/* XXX CPCI_HOTSWAP */
- /* XXX PCIX */
+ if (pcix_off != -1)
+ pci_conf_print_pcix_cap(regs, pcix_off);
/* XXX LDT */
if (vendspec_off != -1)
pci_conf_print_vendspec_cap(regs, vendspec_off);
diff -r 2cf89fcc5cd3 -r 2b69f6330373 sys/dev/pci/pcireg.h
--- a/sys/dev/pci/pcireg.h Fri May 30 03:02:32 2014 +0000
+++ b/sys/dev/pci/pcireg.h Fri May 30 03:42:38 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pcireg.h,v 1.93 2014/05/27 16:26:15 msaitoh Exp $ */
+/* $NetBSD: pcireg.h,v 1.94 2014/05/30 03:42:38 msaitoh Exp $ */
/*
* Copyright (c) 1995, 1996, 1999, 2000
@@ -640,8 +640,14 @@
/*
* Capability ID: 0x07
* PCI-X capability.
+ *
+ * PCI-X capability register has two different layouts. One is for bridge
+ * function. Another is for non-bridge functions.
*/
+
+/* For non-bridge functions */
+
/*
* Command. 16 bits at offset 2 (e.g. upper 16 bits of the first 32-bit
* word at the capability; the lower 16 bits are the capability ID and
@@ -651,21 +657,24 @@
* as 32-bit values, offset and shifted appropriately. Make sure you perform
* the appropriate R/M/W cycles!
*/
-#define PCIX_CMD 0x00
+#define PCIX_CMD 0x00
#define PCIX_CMD_PERR_RECOVER 0x00010000
#define PCIX_CMD_RELAXED_ORDER 0x00020000
#define PCIX_CMD_BYTECNT_MASK 0x000c0000
#define PCIX_CMD_BYTECNT_SHIFT 18
-#define PCIX_CMD_BCNT_512 0x00000000
-#define PCIX_CMD_BCNT_1024 0x00040000
-#define PCIX_CMD_BCNT_2048 0x00080000
-#define PCIX_CMD_BCNT_4096 0x000c0000
+#define PCIX_CMD_BYTECNT(reg) \
+ (512 << (((reg) & PCIX_CMD_BYTECNT_MASK) >> PCIX_CMD_BYTECNT_SHIFT))
+#define PCIX_CMD_BCNT_512 0x00000000
+#define PCIX_CMD_BCNT_1024 0x00040000
+#define PCIX_CMD_BCNT_2048 0x00080000
+#define PCIX_CMD_BCNT_4096 0x000c0000
#define PCIX_CMD_SPLTRANS_MASK 0x00700000
-#define PCIX_CMD_SPLTRANS_1 0x00000000
-#define PCIX_CMD_SPLTRANS_2 0x00100000
-#define PCIX_CMD_SPLTRANS_3 0x00200000
-#define PCIX_CMD_SPLTRANS_4 0x00300000
-#define PCIX_CMD_SPLTRANS_8 0x00400000
+#define PCIX_CMD_SPLTRANS_SHIFT 20
+#define PCIX_CMD_SPLTRANS_1 0x00000000
+#define PCIX_CMD_SPLTRANS_2 0x00100000
+#define PCIX_CMD_SPLTRANS_3 0x00200000
+#define PCIX_CMD_SPLTRANS_4 0x00300000
+#define PCIX_CMD_SPLTRANS_8 0x00400000
#define PCIX_CMD_SPLTRANS_12 0x00500000
#define PCIX_CMD_SPLTRANS_16 0x00600000
#define PCIX_CMD_SPLTRANS_32 0x00700000
@@ -673,31 +682,40 @@
/*
* Status. 32 bits at offset 4.
*/
-#define PCIX_STATUS 0x04
-#define PCIX_STATUS_FN_MASK 0x00000007
+#define PCIX_STATUS 0x04
+#define PCIX_STATUS_FN_MASK 0x00000007
#define PCIX_STATUS_DEV_MASK 0x000000f8
+#define PCIX_STATUS_DEV_SHIFT 3
#define PCIX_STATUS_BUS_MASK 0x0000ff00
-#define PCIX_STATUS_64BIT 0x00010000
-#define PCIX_STATUS_133 0x00020000
-#define PCIX_STATUS_SPLDISC 0x00040000
-#define PCIX_STATUS_SPLUNEX 0x00080000
-#define PCIX_STATUS_DEVCPLX 0x00100000
-#define PCIX_STATUS_MAXB_MASK 0x00600000
+#define PCIX_STATUS_BUS_SHIFT 8
+#define PCIX_STATUS_FN(val) ((val) & PCIX_STATUS_FN_MASK)
+#define PCIX_STATUS_DEV(val) \
+ (((val) & PCIX_STATUS_DEV_MASK) >> PCIX_STATUS_DEV_SHIFT)
+#define PCIX_STATUS_BUS(val) \
+ (((val) & PCIX_STATUS_BUS_MASK) >> PCIX_STATUS_BUS_SHIFT)
+#define PCIX_STATUS_64BIT 0x00010000 /* 64bit device */
+#define PCIX_STATUS_133 0x00020000 /* 133MHz capable */
+#define PCIX_STATUS_SPLDISC 0x00040000 /* Split completion discarded*/
+#define PCIX_STATUS_SPLUNEX 0x00080000 /* Unexpected split complet. */
+#define PCIX_STATUS_DEVCPLX 0x00100000 /* Device Complexity */
+#define PCIX_STATUS_MAXB_MASK 0x00600000 /* MAX memory read Byte count*/
#define PCIX_STATUS_MAXB_SHIFT 21
#define PCIX_STATUS_MAXB_512 0x00000000
#define PCIX_STATUS_MAXB_1024 0x00200000
#define PCIX_STATUS_MAXB_2048 0x00400000
#define PCIX_STATUS_MAXB_4096 0x00600000
-#define PCIX_STATUS_MAXST_MASK 0x03800000
-#define PCIX_STATUS_MAXST_1 0x00000000
-#define PCIX_STATUS_MAXST_2 0x00800000
-#define PCIX_STATUS_MAXST_3 0x01000000
-#define PCIX_STATUS_MAXST_4 0x01800000
-#define PCIX_STATUS_MAXST_8 0x02000000
+#define PCIX_STATUS_MAXST_MASK 0x03800000 /* MAX outstand. Split Trans.*/
+#define PCIX_STATUS_MAXST_SHIFT 23
+#define PCIX_STATUS_MAXST_1 0x00000000
+#define PCIX_STATUS_MAXST_2 0x00800000
+#define PCIX_STATUS_MAXST_3 0x01000000
+#define PCIX_STATUS_MAXST_4 0x01800000
+#define PCIX_STATUS_MAXST_8 0x02000000
#define PCIX_STATUS_MAXST_12 0x02800000
#define PCIX_STATUS_MAXST_16 0x03000000
#define PCIX_STATUS_MAXST_32 0x03800000
-#define PCIX_STATUS_MAXRS_MASK 0x1c000000
+#define PCIX_STATUS_MAXRS_MASK 0x1c000000 /* MAX cumulative Read Size */
+#define PCIX_STATUS_MAXRS_SHIFT 26
#define PCIX_STATUS_MAXRS_1K 0x00000000
#define PCIX_STATUS_MAXRS_2K 0x04000000
#define PCIX_STATUS_MAXRS_4K 0x08000000
@@ -706,7 +724,37 @@
#define PCIX_STATUS_MAXRS_32K 0x14000000
#define PCIX_STATUS_MAXRS_64K 0x18000000
#define PCIX_STATUS_MAXRS_128K 0x1c000000
-#define PCIX_STATUS_SCERR 0x20000000
+#define PCIX_STATUS_SCERR 0x20000000 /* rcv. Split Completion ERR.*/
+#define PCIX_STATUS_266 0x40000000 /* 266MHz capable */
+#define PCIX_STATUS_533 0x80000000 /* 533MHz capable */
+
+/* For bridge function */
+
+#define PCIX_BRIDGE_2ND_STATUS 0x00
+#define PCIX_BRIDGE_ST_64BIT 0x00010000 /* Same as PCIX_STATUS (nonb)*/
+#define PCIX_BRIDGE_ST_133 0x00020000 /* Same as PCIX_STATUS (nonb)*/
+#define PCIX_BRIDGE_ST_SPLDISC 0x00040000 /* Same as PCIX_STATUS (nonb)*/
+#define PCIX_BRIDGE_ST_SPLUNEX 0x00080000 /* Same as PCIX_STATUS (nonb)*/
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