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-rw-r--r--e100.c238
1 files changed, 238 insertions, 0 deletions
diff --git a/e100.c b/e100.c
new file mode 100644
index 0000000..fd4bd03
--- /dev/null
+++ b/e100.c
@@ -0,0 +1,238 @@
+/* Copyright (c) 2002 Intel Corporation */
+#include <stdio.h>
+#include "internal.h"
+
+#define D102_REV_ID 12
+
+#define MDI_MDIX_CONFIG_IS_OK 0x0010
+#define MDI_MDIX_STATUS 0x0020
+
+#define SOFT_INT 0x0200 /* Generate a S/W interrupt */
+
+/* Interrupt masks */
+#define ALL_INT_MASK 0x0100 /* Mask interrupts */
+#define FCP_INT_MASK 0x0400 /* Flow Control Pause */
+#define ER_INT_MASK 0x0800 /* Early Receive */
+#define RNR_INT_MASK 0x1000 /* RU Not Ready */
+#define CNA_INT_MASK 0x2000 /* CU Not Active */
+#define FR_INT_MASK 0x4000 /* Frame Received */
+#define CX_INT_MASK 0x8000 /* CU eXecution w/ I-bit done */
+
+/* Interrupts pending */
+#define FCP_INT_PENDING 0x0100 /* Flow Control Pause */
+#define ER_INT_PENDING 0x0200 /* Early Receive */
+#define SWI_INT_PENDING 0x0400 /* S/W generated interrupt */
+#define MDI_INT_PENDING 0x0800 /* MDI read or write done */
+#define RNR_INT_PENDING 0x1000 /* RU Became Not Ready */
+#define CNA_INT_PENDING 0x2000 /* CU Became Inactive (IDLE) */
+#define FR_INT_PENDING 0x4000 /* RU Received A Frame */
+#define CX_INT_PENDING 0x8000 /* CU Completed Action Cmd */
+
+/* Status */
+#define CU_STATUS 0x00C0
+#define RU_STATUS 0x003C
+
+/* Commands */
+#define CU_CMD 0x00F0
+#define RU_CMD 0x0007
+
+int e100_dump_regs(struct ethtool_drvinfo *info __maybe_unused,
+ struct ethtool_regs *regs)
+{
+ u32 *regs_buff = (u32 *)regs->data;
+ u8 version = (u8)(regs->version >> 24);
+ u8 rev_id = (u8)(regs->version);
+ u8 regs_len = regs->len / sizeof(u32);
+ u32 reg;
+ u16 scb_status, scb_cmd;
+
+ if (version != 1)
+ return -1;
+
+ reg = regs_buff[0];
+ scb_status = reg & 0x0000ffff;
+ scb_cmd = reg >> 16;
+ fprintf(stdout,
+ "SCB Status Word (Lower Word) 0x%04X\n",
+ scb_status);
+
+ switch ((scb_status & RU_STATUS) >> 2) {
+ case 0:
+ fprintf(stdout,
+ " RU Status: Idle\n");
+ break;
+ case 1:
+ fprintf(stdout,
+ " RU Status: Suspended\n");
+ break;
+ case 2:
+ fprintf(stdout,
+ " RU Status: No Resources\n");
+ break;
+ case 4:
+ fprintf(stdout,
+ " RU Status: Ready\n");
+ break;
+ case 9:
+ fprintf(stdout,
+ " RU Status: Suspended with no more RBDs\n");
+ break;
+ case 10:
+ fprintf(stdout,
+ " RU Status: No Resources due to no more RBDs\n");
+ break;
+ case 12:
+ fprintf(stdout,
+ " RU Status: Ready with no RBDs present\n");
+ break;
+ default:
+ fprintf(stdout,
+ " RU Status: Unknown State\n");
+ break;
+ }
+
+ switch ((scb_status & CU_STATUS) >> 6) {
+ case 0:
+ fprintf(stdout,
+ " CU Status: Idle\n");
+ break;
+ case 1:
+ fprintf(stdout,
+ " CU Status: Suspended\n");
+ break;
+ case 2:
+ fprintf(stdout,
+ " CU Status: Active\n");
+ break;
+ default:
+ fprintf(stdout,
+ " CU Status: Unknown State\n");
+ break;
+ }
+
+ fprintf(stdout,
+ " ---- Interrupts Pending ----\n"
+ " Flow Control Pause: %s\n"
+ " Early Receive: %s\n"
+ " Software Generated Interrupt: %s\n"
+ " MDI Done: %s\n"
+ " RU Not In Ready State: %s\n"
+ " CU Not in Active State: %s\n"
+ " RU Received Frame: %s\n"
+ " CU Completed Command: %s\n",
+ scb_status & FCP_INT_PENDING ? "yes" : "no",
+ scb_status & ER_INT_PENDING ? "yes" : "no",
+ scb_status & SWI_INT_PENDING ? "yes" : "no",
+ scb_status & MDI_INT_PENDING ? "yes" : "no",
+ scb_status & RNR_INT_PENDING ? "yes" : "no",
+ scb_status & CNA_INT_PENDING ? "yes" : "no",
+ scb_status & FR_INT_PENDING ? "yes" : "no",
+ scb_status & CX_INT_PENDING ? "yes" : "no");
+
+ fprintf(stdout,
+ "SCB Command Word (Upper Word) 0x%04X\n",
+ scb_cmd);
+
+ switch (scb_cmd & RU_CMD) {
+ case 0:
+ fprintf(stdout,
+ " RU Command: No Command\n");
+ break;
+ case 1:
+ fprintf(stdout,
+ " RU Command: RU Start\n");
+ break;
+ case 2:
+ fprintf(stdout,
+ " RU Command: RU Resume\n");
+ break;
+ case 4:
+ fprintf(stdout,
+ " RU Command: RU Abort\n");
+ break;
+ case 6:
+ fprintf(stdout,
+ " RU Command: Load RU Base\n");
+ break;
+ default:
+ fprintf(stdout,
+ " RU Command: Unknown\n");
+ break;
+ }
+
+ switch ((scb_cmd & CU_CMD) >> 4) {
+ case 0:
+ fprintf(stdout,
+ " CU Command: No Command\n");
+ break;
+ case 1:
+ fprintf(stdout,
+ " CU Command: CU Start\n");
+ break;
+ case 2:
+ fprintf(stdout,
+ " CU Command: CU Resume\n");
+ break;
+ case 4:
+ fprintf(stdout,
+ " CU Command: Load Dump Counters Address\n");
+ break;
+ case 5:
+ fprintf(stdout,
+ " CU Command: Dump Counters\n");
+ break;
+ case 6:
+ fprintf(stdout,
+ " CU Command: Load CU Base\n");
+ break;
+ case 7:
+ fprintf(stdout,
+ " CU Command: Dump & Reset Counters\n");
+ break;
+ default:
+ fprintf(stdout,
+ " CU Command: Unknown\n");
+ break;
+ }
+
+ fprintf(stdout,
+ " Software Generated Interrupt: %s\n",
+ scb_cmd & SOFT_INT ? "yes" : "no");
+
+ fprintf(stdout,
+ " ---- Interrupts Masked ----\n"
+ " ALL Interrupts: %s\n"
+ " Flow Control Pause: %s\n"
+ " Early Receive: %s\n"
+ " RU Not In Ready State: %s\n"
+ " CU Not in Active State: %s\n"
+ " RU Received Frame: %s\n"
+ " CU Completed Command: %s\n",
+ scb_cmd & ALL_INT_MASK ? "yes" : "no",
+ scb_cmd & FCP_INT_MASK ? "yes" : "no",
+ scb_cmd & ER_INT_MASK ? "yes" : "no",
+ scb_cmd & RNR_INT_MASK ? "yes" : "no",
+ scb_cmd & CNA_INT_MASK ? "yes" : "no",
+ scb_cmd & FR_INT_MASK ? "yes" : "no",
+ scb_cmd & CX_INT_MASK ? "yes" : "no");
+
+ if(regs_len > 1) {
+ fprintf(stdout, "MDI/MDI-X Status: ");
+ if(rev_id < D102_REV_ID)
+ fprintf(stdout, "MDI\n");
+ else {
+ u16 ctrl_reg = regs_buff[1];
+
+ if(ctrl_reg & MDI_MDIX_CONFIG_IS_OK) {
+ if(ctrl_reg & MDI_MDIX_STATUS)
+ fprintf(stdout, "MDI-X\n");
+ else
+ fprintf(stdout, "MDI\n");
+ } else
+ fprintf(stdout, "Unknown\n");
+ }
+ }
+
+ return 0;
+}
+