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-rw-r--r--drivers/net/pfe_eth/Makefile1
-rw-r--r--drivers/net/pfe_eth/pfe_cmd.c497
2 files changed, 498 insertions, 0 deletions
diff --git a/drivers/net/pfe_eth/Makefile b/drivers/net/pfe_eth/Makefile
index e78f1bf..3e88e53 100644
--- a/drivers/net/pfe_eth/Makefile
+++ b/drivers/net/pfe_eth/Makefile
@@ -5,6 +5,7 @@
# Layerscape PFE driver
obj-y += pfe.o \
+ pfe_cmd.o \
pfe_driver.o \
pfe_eth.o \
pfe_firmware.o
diff --git a/drivers/net/pfe_eth/pfe_cmd.c b/drivers/net/pfe_eth/pfe_cmd.c
new file mode 100644
index 0000000..41c9c9b
--- /dev/null
+++ b/drivers/net/pfe_eth/pfe_cmd.c
@@ -0,0 +1,497 @@
+/*
+ * Copyright 2015-2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * @file
+ * @brief PFE utility commands
+ */
+
+#include <pfe_eth/pfe_eth.h>
+
+static inline void pfe_command_help(void)
+{
+ printf("Usage: pfe [pe | status | expt ] <options>\n");
+}
+
+static void pfe_command_pe(int argc, char * const argv[])
+{
+ if (argc >= 3 && strcmp(argv[2], "pmem") == 0) {
+ if (argc >= 4 && strcmp(argv[3], "read") == 0) {
+ int i;
+ int num;
+ int id;
+ u32 addr;
+ u32 size;
+ u32 val;
+
+ if (argc == 7) {
+ num = simple_strtoul(argv[6], NULL, 0);
+ } else if (argc == 6) {
+ num = 1;
+ } else {
+ printf("Usage: pfe pe pmem read <id> <addr> [<num>]\n");
+ return;
+ }
+
+ id = simple_strtoul(argv[4], NULL, 0);
+ addr = simple_strtoul(argv[5], NULL, 16);
+ size = 4;
+
+ for (i = 0; i < num; i++, addr += 4) {
+ val = pe_pmem_read(id, addr, size);
+ val = be32_to_cpu(val);
+ if (!(i & 3))
+ printf("%08x: ", addr);
+ printf("%08x%s", val, i == num - 1 || (i & 3)
+ == 3 ? "\n" : " ");
+ }
+
+ } else {
+ printf("Usage: pfe pe pmem read <parameters>\n");
+ }
+ } else if (argc >= 3 && strcmp(argv[2], "dmem") == 0) {
+ if (argc >= 4 && strcmp(argv[3], "read") == 0) {
+ int i;
+ int num;
+ int id;
+ u32 addr;
+ u32 size;
+ u32 val;
+
+ if (argc == 7) {
+ num = simple_strtoul(argv[6], NULL, 0);
+ } else if (argc == 6) {
+ num = 1;
+ } else {
+ printf("Usage: pfe pe dmem read <id> <addr> [<num>]\n");
+ return;
+ }
+
+ id = simple_strtoul(argv[4], NULL, 0);
+ addr = simple_strtoul(argv[5], NULL, 16);
+ size = 4;
+
+ for (i = 0; i < num; i++, addr += 4) {
+ val = pe_dmem_read(id, addr, size);
+ val = be32_to_cpu(val);
+ if (!(i & 3))
+ printf("%08x: ", addr);
+ printf("%08x%s", val, i == num - 1 || (i & 3)
+ == 3 ? "\n" : " ");
+ }
+
+ } else if (argc >= 4 && strcmp(argv[3], "write") == 0) {
+ int id;
+ u32 val;
+ u32 addr;
+ u32 size;
+
+ if (argc != 7) {
+ printf("Usage: pfe pe dmem write <id> <val> <addr>\n");
+ return;
+ }
+
+ id = simple_strtoul(argv[4], NULL, 0);
+ val = simple_strtoul(argv[5], NULL, 16);
+ val = cpu_to_be32(val);
+ addr = simple_strtoul(argv[6], NULL, 16);
+ size = 4;
+ pe_dmem_write(id, val, addr, size);
+ } else {
+ printf("Usage: pfe pe dmem [read | write] <parameters>\n");
+ }
+ } else if (argc >= 3 && strcmp(argv[2], "lmem") == 0) {
+ if (argc >= 4 && strcmp(argv[3], "read") == 0) {
+ int i;
+ int num;
+ u32 val;
+ u32 offset;
+
+ if (argc == 6) {
+ num = simple_strtoul(argv[5], NULL, 0);
+ } else if (argc == 5) {
+ num = 1;
+ } else {
+ printf("Usage: pfe pe lmem read <offset> [<num>]\n");
+ return;
+ }
+
+ offset = simple_strtoul(argv[4], NULL, 16);
+
+ for (i = 0; i < num; i++, offset += 4) {
+ pe_lmem_read(&val, 4, offset);
+ val = be32_to_cpu(val);
+ printf("%08x%s", val, i == num - 1 || (i & 7)
+ == 7 ? "\n" : " ");
+ }
+
+ } else if (argc >= 4 && strcmp(argv[3], "write") == 0) {
+ u32 val;
+ u32 offset;
+
+ if (argc != 6) {
+ printf("Usage: pfe pe lmem write <val> <offset>\n");
+ return;
+ }
+
+ val = simple_strtoul(argv[4], NULL, 16);
+ val = cpu_to_be32(val);
+ offset = simple_strtoul(argv[5], NULL, 16);
+ pe_lmem_write(&val, 4, offset);
+ } else {
+ printf("Usage: pfe pe lmem [read | write] <parameters>\n");
+ }
+ } else {
+ if (strcmp(argv[2], "help") != 0)
+ printf("Unknown option: %s\n", argv[2]);
+
+ printf("Usage: pfe pe <parameters>\n");
+ }
+}
+
+#define NUM_QUEUES 16
+
+/*
+ * qm_read_drop_stat
+ * This function is used to read the drop statistics from the TMU
+ * hw drop counter. Since the hw counter is always cleared afer
+ * reading, this function maintains the previous drop count, and
+ * adds the new value to it. That value can be retrieved by
+ * passing a pointer to it with the total_drops arg.
+ *
+ * @param tmu TMU number (0 - 3)
+ * @param queue queue number (0 - 15)
+ * @param total_drops pointer to location to store total drops (or NULL)
+ * @param do_reset if TRUE, clear total drops after updating
+ *
+ */
+u32 qm_read_drop_stat(u32 tmu, u32 queue, u32 *total_drops, int do_reset)
+{
+ static u32 qtotal[TMU_MAX_ID + 1][NUM_QUEUES];
+ u32 val;
+
+ writel((tmu << 8) | queue, TMU_TEQ_CTRL);
+ writel((tmu << 8) | queue, TMU_LLM_CTRL);
+ val = readl(TMU_TEQ_DROP_STAT);
+ qtotal[tmu][queue] += val;
+ if (total_drops)
+ *total_drops = qtotal[tmu][queue];
+ if (do_reset)
+ qtotal[tmu][queue] = 0;
+ return val;
+}
+
+static ssize_t tmu_queue_stats(char *buf, int tmu, int queue)
+{
+ ssize_t len = 0;
+ u32 drops;
+
+ printf("%d-%02d, ", tmu, queue);
+
+ drops = qm_read_drop_stat(tmu, queue, NULL, 0);
+
+ /* Select queue */
+ writel((tmu << 8) | queue, TMU_TEQ_CTRL);
+ writel((tmu << 8) | queue, TMU_LLM_CTRL);
+
+ printf("(teq) drop: %10u, tx: %10u (llm) head: %08x, tail: %08x, drop: %10u\n",
+ drops, readl(TMU_TEQ_TRANS_STAT),
+ readl(TMU_LLM_QUE_HEADPTR), readl(TMU_LLM_QUE_TAILPTR),
+ readl(TMU_LLM_QUE_DROPCNT));
+
+ return len;
+}
+
+static ssize_t tmu_queues(char *buf, int tmu)
+{
+ ssize_t len = 0;
+ int queue;
+
+ for (queue = 0; queue < 16; queue++)
+ len += tmu_queue_stats(buf + len, tmu, queue);
+
+ return len;
+}
+
+static inline void hif_status(void)
+{
+ printf("hif:\n");
+
+ printf(" tx curr bd: %x\n", readl(HIF_TX_CURR_BD_ADDR));
+ printf(" tx status: %x\n", readl(HIF_TX_STATUS));
+ printf(" tx dma status: %x\n", readl(HIF_TX_DMA_STATUS));
+
+ printf(" rx curr bd: %x\n", readl(HIF_RX_CURR_BD_ADDR));
+ printf(" rx status: %x\n", readl(HIF_RX_STATUS));
+ printf(" rx dma status: %x\n", readl(HIF_RX_DMA_STATUS));
+
+ printf("hif nocopy:\n");
+
+ printf(" tx curr bd: %x\n", readl(HIF_NOCPY_TX_CURR_BD_ADDR));
+ printf(" tx status: %x\n", readl(HIF_NOCPY_TX_STATUS));
+ printf(" tx dma status: %x\n", readl(HIF_NOCPY_TX_DMA_STATUS));
+
+ printf(" rx curr bd: %x\n", readl(HIF_NOCPY_RX_CURR_BD_ADDR));
+ printf(" rx status: %x\n", readl(HIF_NOCPY_RX_STATUS));
+ printf(" rx dma status: %x\n", readl(HIF_NOCPY_RX_DMA_STATUS));
+}
+
+static void gpi(int id, void *base)
+{
+ u32 val;
+
+ printf("%s%d:\n", __func__, id);
+
+ printf(" tx under stick: %x\n", readl(base + GPI_FIFO_STATUS));
+ val = readl(base + GPI_FIFO_DEBUG);
+ printf(" tx pkts: %x\n", (val >> 23) & 0x3f);
+ printf(" rx pkts: %x\n", (val >> 18) & 0x3f);
+ printf(" tx bytes: %x\n", (val >> 9) & 0x1ff);
+ printf(" rx bytes: %x\n", (val >> 0) & 0x1ff);
+ printf(" overrun: %x\n", readl(base + GPI_OVERRUN_DROPCNT));
+}
+
+static void bmu(int id, void *base)
+{
+ printf("%s%d:\n", __func__, id);
+
+ printf(" buf size: %x\n", (1 << readl(base + BMU_BUF_SIZE)));
+ printf(" buf count: %x\n", readl(base + BMU_BUF_CNT));
+ printf(" buf rem: %x\n", readl(base + BMU_REM_BUF_CNT));
+ printf(" buf curr: %x\n", readl(base + BMU_CURR_BUF_CNT));
+ printf(" free err: %x\n", readl(base + BMU_FREE_ERR_ADDR));
+}
+
+#define PESTATUS_ADDR_CLASS 0x800
+#define PEMBOX_ADDR_CLASS 0x890
+#define PESTATUS_ADDR_TMU 0x80
+#define PEMBOX_ADDR_TMU 0x290
+#define PESTATUS_ADDR_UTIL 0x0
+
+static void pfe_pe_status(int argc, char * const argv[])
+{
+ int do_clear = 0;
+ u32 id;
+ u32 dmem_addr;
+ u32 cpu_state;
+ u32 activity_counter;
+ u32 rx;
+ u32 tx;
+ u32 drop;
+ char statebuf[5];
+ u32 class_debug_reg = 0;
+
+ if (argc == 4 && strcmp(argv[3], "clear") == 0)
+ do_clear = 1;
+
+ for (id = CLASS0_ID; id < MAX_PE; id++) {
+ if (id >= TMU0_ID) {
+ if (id == TMU2_ID)
+ continue;
+ if (id == TMU0_ID)
+ printf("tmu:\n");
+ dmem_addr = PESTATUS_ADDR_TMU;
+ } else {
+ if (id == CLASS0_ID)
+ printf("class:\n");
+ dmem_addr = PESTATUS_ADDR_CLASS;
+ class_debug_reg = readl(CLASS_PE0_DEBUG + id * 4);
+ }
+
+ cpu_state = pe_dmem_read(id, dmem_addr, 4);
+ dmem_addr += 4;
+ memcpy(statebuf, (char *)&cpu_state, 4);
+ statebuf[4] = '\0';
+ activity_counter = pe_dmem_read(id, dmem_addr, 4);
+ dmem_addr += 4;
+ rx = pe_dmem_read(id, dmem_addr, 4);
+ if (do_clear)
+ pe_dmem_write(id, 0, dmem_addr, 4);
+ dmem_addr += 4;
+ tx = pe_dmem_read(id, dmem_addr, 4);
+ if (do_clear)
+ pe_dmem_write(id, 0, dmem_addr, 4);
+ dmem_addr += 4;
+ drop = pe_dmem_read(id, dmem_addr, 4);
+ if (do_clear)
+ pe_dmem_write(id, 0, dmem_addr, 4);
+ dmem_addr += 4;
+
+ if (id >= TMU0_ID) {
+ printf("%d: state=%4s ctr=%08x rx=%x qstatus=%x\n",
+ id - TMU0_ID, statebuf,
+ cpu_to_be32(activity_counter),
+ cpu_to_be32(rx), cpu_to_be32(tx));
+ } else {
+ printf("%d: pc=1%04x ldst=%04x state=%4s ctr=%08x rx=%x tx=%x drop=%x\n",
+ id - CLASS0_ID, class_debug_reg & 0xFFFF,
+ class_debug_reg >> 16,
+ statebuf, cpu_to_be32(activity_counter),
+ cpu_to_be32(rx), cpu_to_be32(tx),
+ cpu_to_be32(drop));
+ }
+ }
+}
+
+static void pfe_command_status(int argc, char * const argv[])
+{
+ if (argc >= 3 && strcmp(argv[2], "pe") == 0) {
+ pfe_pe_status(argc, argv);
+ } else if (argc == 3 && strcmp(argv[2], "bmu") == 0) {
+ bmu(1, BMU1_BASE_ADDR);
+ bmu(2, BMU2_BASE_ADDR);
+ } else if (argc == 3 && strcmp(argv[2], "hif") == 0) {
+ hif_status();
+ } else if (argc == 3 && strcmp(argv[2], "gpi") == 0) {
+ gpi(0, EGPI1_BASE_ADDR);
+ gpi(1, EGPI2_BASE_ADDR);
+ gpi(3, HGPI_BASE_ADDR);
+ } else if (argc == 3 && strcmp(argv[2], "tmu0_queues") == 0) {
+ tmu_queues(NULL, 0);
+ } else if (argc == 3 && strcmp(argv[2], "tmu1_queues") == 0) {
+ tmu_queues(NULL, 1);
+ } else if (argc == 3 && strcmp(argv[2], "tmu3_queues") == 0) {
+ tmu_queues(NULL, 3);
+ } else {
+ printf("Usage: pfe status [pe <clear> | bmu | gpi | hif | tmuX_queues ]\n");
+ }
+}
+
+#define EXPT_DUMP_ADDR 0x1fa8
+#define EXPT_REG_COUNT 20
+static const char *register_names[EXPT_REG_COUNT] = {
+ " pc", "ECAS", " EID", " ED",
+ " sp", " r1", " r2", " r3",
+ " r4", " r5", " r6", " r7",
+ " r8", " r9", " r10", " r11",
+ " r12", " r13", " r14", " r15"
+};
+
+static void pfe_command_expt(int argc, char * const argv[])
+{
+ unsigned int id, i, val, addr;
+
+ if (argc == 3) {
+ id = simple_strtoul(argv[2], NULL, 0);
+ addr = EXPT_DUMP_ADDR;
+ printf("Exception information for PE %d:\n", id);
+ for (i = 0; i < EXPT_REG_COUNT; i++) {
+ val = pe_dmem_read(id, addr, 4);
+ val = be32_to_cpu(val);
+ printf("%s:%08x%s", register_names[i], val,
+ (i & 3) == 3 ? "\n" : " ");
+ addr += 4;
+ }
+ } else {
+ printf("Usage: pfe expt <id>\n");
+ }
+}
+
+#ifdef PFE_RESET_WA
+/*This function sends a dummy packet to HIF through TMU3 */
+static void send_dummy_pkt_to_hif(void)
+{
+ u32 buf;
+ static u32 dummy_pkt[] = {
+ 0x4200800a, 0x01000003, 0x00018100, 0x00000000,
+ 0x33221100, 0x2b785544, 0xd73093cb, 0x01000608,
+ 0x04060008, 0x2b780200, 0xd73093cb, 0x0a01a8c0,
+ 0x33221100, 0xa8c05544, 0x00000301, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0xbe86c51f };
+
+ /*Allocate BMU2 buffer */
+ buf = readl(BMU2_BASE_ADDR + BMU_ALLOC_CTRL);
+
+ debug("Sending a dummy pkt to HIF %x\n", buf);
+ buf += 0x80;
+ memcpy((void *)DDR_PFE_TO_VIRT(buf), dummy_pkt, sizeof(dummy_pkt));
+
+ /*Write length and pkt to TMU*/
+ writel(0x03000042, TMU_PHY_INQ_PKTPTR);
+ writel(buf, TMU_PHY_INQ_PKTINFO);
+}
+
+static void pfe_command_stop(int argc, char * const argv[])
+{
+ int pfe_pe_id, hif_stop_loop = 10;
+ u32 rx_status;
+
+ printf("Stopping PFE...\n");
+
+ /*Mark all descriptors as LAST_BD */
+ hif_rx_desc_disable();
+
+ /*If HIF Rx BDP is busy send a dummy packet */
+ do {
+ rx_status = readl(HIF_RX_STATUS);
+ if (rx_status & BDP_CSR_RX_DMA_ACTV)
+ send_dummy_pkt_to_hif();
+ udelay(10);
+ } while (hif_stop_loop--);
+
+ if (readl(HIF_RX_STATUS) & BDP_CSR_RX_DMA_ACTV)
+ printf("Unable to stop HIF\n");
+
+ /*Disable Class PEs */
+ for (pfe_pe_id = CLASS0_ID; pfe_pe_id <= CLASS_MAX_ID; pfe_pe_id++) {
+ /*Inform PE to stop */
+ pe_dmem_write(pfe_pe_id, cpu_to_be32(1), PEMBOX_ADDR_CLASS, 4);
+ udelay(10);
+
+ /*Read status */
+ if (!pe_dmem_read(pfe_pe_id, PEMBOX_ADDR_CLASS + 4, 4))
+ printf("Failed to stop PE%d\n", pfe_pe_id);
+ }
+
+ /*Disable TMU PEs */
+ for (pfe_pe_id = TMU0_ID; pfe_pe_id <= TMU_MAX_ID; pfe_pe_id++) {
+ if (pfe_pe_id == TMU2_ID)
+ continue;
+
+ /*Inform PE to stop */
+ pe_dmem_write(pfe_pe_id, 1, PEMBOX_ADDR_TMU, 4);
+ udelay(10);
+
+ /*Read status */
+ if (!pe_dmem_read(pfe_pe_id, PEMBOX_ADDR_TMU + 4, 4))
+ printf("Failed to stop PE%d\n", pfe_pe_id);
+ }
+}
+#endif
+
+static int pfe_command(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ if (argc == 1 || strcmp(argv[1], "help") == 0) {
+ pfe_command_help();
+ return CMD_RET_SUCCESS;
+ }
+
+ if (strcmp(argv[1], "pe") == 0) {
+ pfe_command_pe(argc, argv);
+ } else if (strcmp(argv[1], "status") == 0) {
+ pfe_command_status(argc, argv);
+ } else if (strcmp(argv[1], "expt") == 0) {
+ pfe_command_expt(argc, argv);
+#ifdef PFE_RESET_WA
+ } else if (strcmp(argv[1], "stop") == 0) {
+ pfe_command_stop(argc, argv);
+#endif
+ } else {
+ printf("Unknown option: %s\n", argv[1]);
+ pfe_command_help();
+ return CMD_RET_FAILURE;
+ }
+ return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(
+ pfe, 7, 1, pfe_command,
+ "Performs PFE lib utility functions",
+ "Usage:\n"
+ "pfe <options>"
+);
generated by cgit v0.10.2 at 2024-11-13 07:50:58 (GMT)