diff options
Diffstat (limited to 'drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c | 407 |
1 files changed, 407 insertions, 0 deletions
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c b/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c index b7238dd967fe..6edfa0aa69f1 100644 --- a/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c +++ b/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c @@ -7,9 +7,12 @@ #include <linux/seq_file.h> #include "fbnic.h" +#include "fbnic_txrx.h" static struct dentry *fbnic_dbg_root; +/* Descriptor Seq Functions */ + static void fbnic_dbg_desc_break(struct seq_file *s, int i) { while (i--) @@ -18,6 +21,362 @@ static void fbnic_dbg_desc_break(struct seq_file *s, int i) seq_putc(s, '\n'); } +static void fbnic_dbg_ring_show(struct seq_file *s) +{ + struct fbnic_ring *ring = s->private; + unsigned long doorbell_offset; + u32 head = 0, tail = 0; + u32 __iomem *csr_base; + + csr_base = fbnic_ring_csr_base(ring); + doorbell_offset = ring->doorbell - csr_base; + + seq_printf(s, "doorbell CSR: %#05lx q_idx: %d\n", + doorbell_offset, ring->q_idx); + seq_printf(s, "size_mask: %#06x size: %zu flags: 0x%02x\n", + ring->size_mask, ring->size, ring->flags); + seq_printf(s, "SW: head: %#06x tail: %#06x\n", + ring->head, ring->tail); + + switch (doorbell_offset) { + case FBNIC_QUEUE_TWQ0_TAIL: + tail = readl(csr_base + FBNIC_QUEUE_TWQ0_PTRS); + head = FIELD_GET(FBNIC_QUEUE_TWQ_PTRS_HEAD_MASK, tail); + break; + case FBNIC_QUEUE_TWQ1_TAIL: + tail = readl(csr_base + FBNIC_QUEUE_TWQ1_PTRS); + head = FIELD_GET(FBNIC_QUEUE_TWQ_PTRS_HEAD_MASK, tail); + break; + case FBNIC_QUEUE_TCQ_HEAD: + head = readl(csr_base + FBNIC_QUEUE_TCQ_PTRS); + tail = FIELD_GET(FBNIC_QUEUE_TCQ_PTRS_TAIL_MASK, head); + break; + case FBNIC_QUEUE_BDQ_HPQ_TAIL: + tail = readl(csr_base + FBNIC_QUEUE_BDQ_HPQ_PTRS); + head = FIELD_GET(FBNIC_QUEUE_BDQ_PTRS_HEAD_MASK, tail); + break; + case FBNIC_QUEUE_BDQ_PPQ_TAIL: + tail = readl(csr_base + FBNIC_QUEUE_BDQ_PPQ_PTRS); + head = FIELD_GET(FBNIC_QUEUE_BDQ_PTRS_HEAD_MASK, tail); + break; + case FBNIC_QUEUE_RCQ_HEAD: + head = readl(csr_base + FBNIC_QUEUE_RCQ_PTRS); + tail = FIELD_GET(FBNIC_QUEUE_RCQ_PTRS_TAIL_MASK, head); + break; + } + + tail &= FBNIC_QUEUE_BDQ_PTRS_TAIL_MASK; + head &= FBNIC_QUEUE_RCQ_PTRS_HEAD_MASK; + + seq_printf(s, "HW: head: %#06x tail: %#06x\n", head, tail); + + seq_puts(s, "\n"); +} + +static void fbnic_dbg_twd_desc_seq_show(struct seq_file *s, int i) +{ + struct fbnic_ring *ring = s->private; + u64 twd = le64_to_cpu(ring->desc[i]); + + switch (FIELD_GET(FBNIC_TWD_TYPE_MASK, twd)) { + case FBNIC_TWD_TYPE_META: + seq_printf(s, "%04x %#06llx %llx %llx %llx %llx %llx %#llx %#llx %llx %#04llx %#04llx %llx %#04llx\n", + i, FIELD_GET(FBNIC_TWD_LEN_MASK, twd), + FIELD_GET(FBNIC_TWD_TYPE_MASK, twd), + FIELD_GET(FBNIC_TWD_FLAG_REQ_COMPLETION, twd), + FIELD_GET(FBNIC_TWD_FLAG_REQ_CSO, twd), + FIELD_GET(FBNIC_TWD_FLAG_REQ_LSO, twd), + FIELD_GET(FBNIC_TWD_FLAG_REQ_TS, twd), + FIELD_GET(FBNIC_TWD_L4_HLEN_MASK, twd), + FIELD_GET(FBNIC_TWD_CSUM_OFFSET_MASK, twd), + FIELD_GET(FBNIC_TWD_L4_TYPE_MASK, twd), + FIELD_GET(FBNIC_TWD_L3_IHLEN_MASK, twd), + FIELD_GET(FBNIC_TWD_L3_OHLEN_MASK, twd), + FIELD_GET(FBNIC_TWD_L3_TYPE_MASK, twd), + FIELD_GET(FBNIC_TWD_L2_HLEN_MASK, twd)); + break; + default: + seq_printf(s, "%04x %#06llx %llx %#014llx\n", i, + FIELD_GET(FBNIC_TWD_LEN_MASK, twd), + FIELD_GET(FBNIC_TWD_TYPE_MASK, twd), + FIELD_GET(FBNIC_TWD_ADDR_MASK, twd)); + break; + } +} + +static int fbnic_dbg_twq_desc_seq_show(struct seq_file *s, void *v) +{ + struct fbnic_ring *ring = s->private; + char hdr[80]; + int i; + + /* Generate header on first entry */ + fbnic_dbg_ring_show(s); + snprintf(hdr, sizeof(hdr), "%4s %5s %s %s\n", + "DESC", "LEN/MSS", "T", "METADATA/TIMESTAMP/BUFFER_ADDR"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + /* Display descriptor */ + if (!ring->desc) { + seq_puts(s, "Descriptor ring not allocated.\n"); + return 0; + } + + for (i = 0; i <= ring->size_mask; i++) + fbnic_dbg_twd_desc_seq_show(s, i); + + return 0; +} + +static int fbnic_dbg_tcq_desc_seq_show(struct seq_file *s, void *v) +{ + struct fbnic_ring *ring = s->private; + char hdr[80]; + int i; + + /* Generate header on first entry */ + fbnic_dbg_ring_show(s); + snprintf(hdr, sizeof(hdr), "%4s %s %s %s %5s %-16s %-6s %-6s\n", + "DESC", "D", "T", "Q", "STATUS", "TIMESTAMP", "HEAD1", "HEAD0"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + /* Display descriptor */ + if (!ring->desc) { + seq_puts(s, "Descriptor ring not allocated.\n"); + return 0; + } + + for (i = 0; i <= ring->size_mask; i++) { + u64 tcd = le64_to_cpu(ring->desc[i]); + + switch (FIELD_GET(FBNIC_TCD_TYPE_MASK, tcd)) { + case FBNIC_TCD_TYPE_0: + seq_printf(s, "%04x %llx %llx %llx %#05llx %-17s %#06llx %#06llx\n", + i, FIELD_GET(FBNIC_TCD_DONE, tcd), + FIELD_GET(FBNIC_TCD_TYPE_MASK, tcd), + FIELD_GET(FBNIC_TCD_TWQ1, tcd), + FIELD_GET(FBNIC_TCD_STATUS_MASK, tcd), + "", + FIELD_GET(FBNIC_TCD_TYPE0_HEAD1_MASK, tcd), + FIELD_GET(FBNIC_TCD_TYPE0_HEAD0_MASK, tcd)); + break; + case FBNIC_TCD_TYPE_1: + seq_printf(s, "%04x %llx %llx %llx %#05llx %#012llx\n", + i, FIELD_GET(FBNIC_TCD_DONE, tcd), + FIELD_GET(FBNIC_TCD_TYPE_MASK, tcd), + FIELD_GET(FBNIC_TCD_TWQ1, tcd), + FIELD_GET(FBNIC_TCD_STATUS_MASK, tcd), + FIELD_GET(FBNIC_TCD_TYPE1_TS_MASK, tcd)); + break; + default: + break; + } + } + + return 0; +} + +static int fbnic_dbg_bdq_desc_seq_show(struct seq_file *s, void *v) +{ + struct fbnic_ring *ring = s->private; + char hdr[80]; + int i; + + /* Generate header on first entry */ + fbnic_dbg_ring_show(s); + snprintf(hdr, sizeof(hdr), "%4s %-4s %s\n", + "DESC", "ID", "BUFFER_ADDR"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + /* Display descriptor */ + if (!ring->desc) { + seq_puts(s, "Descriptor ring not allocated.\n"); + return 0; + } + + for (i = 0; i < (ring->size_mask + 1) * FBNIC_BD_FRAG_COUNT; i++) { + u64 bd = le64_to_cpu(ring->desc[i]); + + seq_printf(s, "%04x %#04llx %#014llx\n", i, + FIELD_GET(FBNIC_BD_DESC_ID_MASK, bd), + FIELD_GET(FBNIC_BD_DESC_ADDR_MASK, bd)); + } + + return 0; +} + +static void fbnic_dbg_rcd_desc_seq_show(struct seq_file *s, int i) +{ + struct fbnic_ring *ring = s->private; + u64 rcd = le64_to_cpu(ring->desc[i]); + + switch (FIELD_GET(FBNIC_RCD_TYPE_MASK, rcd)) { + case FBNIC_RCD_TYPE_HDR_AL: + case FBNIC_RCD_TYPE_PAY_AL: + seq_printf(s, "%04x %llx %llx %llx %#06llx %#06llx %#06llx\n", + i, FIELD_GET(FBNIC_RCD_DONE, rcd), + FIELD_GET(FBNIC_RCD_TYPE_MASK, rcd), + FIELD_GET(FBNIC_RCD_AL_PAGE_FIN, rcd), + FIELD_GET(FBNIC_RCD_AL_BUFF_OFF_MASK, rcd), + FIELD_GET(FBNIC_RCD_AL_BUFF_LEN_MASK, rcd), + FIELD_GET(FBNIC_RCD_AL_BUFF_ID_MASK, rcd)); + break; + case FBNIC_RCD_TYPE_OPT_META: + seq_printf(s, "%04x %llx %llx %llx %llx %llx %#06llx %#012llx\n", + i, FIELD_GET(FBNIC_RCD_DONE, rcd), + FIELD_GET(FBNIC_RCD_TYPE_MASK, rcd), + FIELD_GET(FBNIC_RCD_OPT_META_TYPE_MASK, rcd), + FIELD_GET(FBNIC_RCD_OPT_META_TS, rcd), + FIELD_GET(FBNIC_RCD_OPT_META_ACTION, rcd), + FIELD_GET(FBNIC_RCD_OPT_META_ACTION_MASK, rcd), + FIELD_GET(FBNIC_RCD_OPT_META_TS_MASK, rcd)); + break; + case FBNIC_RCD_TYPE_META: + seq_printf(s, "%04x %llx %llx %llx %llx %llx %llx %llx %llx %llx %#06llx %#010llx\n", + i, FIELD_GET(FBNIC_RCD_DONE, rcd), + FIELD_GET(FBNIC_RCD_TYPE_MASK, rcd), + FIELD_GET(FBNIC_RCD_META_ECN, rcd), + FIELD_GET(FBNIC_RCD_META_L4_CSUM_UNNECESSARY, rcd), + FIELD_GET(FBNIC_RCD_META_ERR_MAC_EOP, rcd), + FIELD_GET(FBNIC_RCD_META_ERR_TRUNCATED_FRAME, rcd), + FIELD_GET(FBNIC_RCD_META_ERR_PARSER, rcd), + FIELD_GET(FBNIC_RCD_META_L4_TYPE_MASK, rcd), + FIELD_GET(FBNIC_RCD_META_L3_TYPE_MASK, rcd), + FIELD_GET(FBNIC_RCD_META_L2_CSUM_MASK, rcd), + FIELD_GET(FBNIC_RCD_META_RSS_HASH_MASK, rcd)); + break; + } +} + +static int fbnic_dbg_rcq_desc_seq_show(struct seq_file *s, void *v) +{ + struct fbnic_ring *ring = s->private; + char hdr[80]; + int i; + + /* Generate header on first entry */ + fbnic_dbg_ring_show(s); + snprintf(hdr, sizeof(hdr), + "%18s %s %s\n", "OFFSET/", "L", "L"); + seq_puts(s, hdr); + snprintf(hdr, sizeof(hdr), + "%4s %s %s %s %s %s %s %s %s %s %-8s %s\n", + "DESC", "D", "T", "F", "C", "M", "T", "P", "4", "3", "LEN/CSUM", "ID/TS/RSS"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + /* Display descriptor */ + if (!ring->desc) { + seq_puts(s, "Descriptor ring not allocated.\n"); + return 0; + } + + for (i = 0; i <= ring->size_mask; i++) + fbnic_dbg_rcd_desc_seq_show(s, i); + + return 0; +} + +static int fbnic_dbg_desc_open(struct inode *inode, struct file *file) +{ + struct fbnic_ring *ring = inode->i_private; + int (*show)(struct seq_file *s, void *v); + + switch (ring->doorbell - fbnic_ring_csr_base(ring)) { + case FBNIC_QUEUE_TWQ0_TAIL: + case FBNIC_QUEUE_TWQ1_TAIL: + show = fbnic_dbg_twq_desc_seq_show; + break; + case FBNIC_QUEUE_TCQ_HEAD: + show = fbnic_dbg_tcq_desc_seq_show; + break; + case FBNIC_QUEUE_BDQ_HPQ_TAIL: + case FBNIC_QUEUE_BDQ_PPQ_TAIL: + show = fbnic_dbg_bdq_desc_seq_show; + break; + case FBNIC_QUEUE_RCQ_HEAD: + show = fbnic_dbg_rcq_desc_seq_show; + break; + default: + return -EINVAL; + } + + return single_open(file, show, ring); +} + +static const struct file_operations fbnic_dbg_desc_fops = { + .owner = THIS_MODULE, + .open = fbnic_dbg_desc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +void fbnic_dbg_nv_init(struct fbnic_napi_vector *nv) +{ + struct fbnic_dev *fbd = nv->fbd; + char name[16]; + int i, j; + + /* Generate a folder for each napi vector */ + snprintf(name, sizeof(name), "nv.%03d", nv->v_idx); + + nv->dbg_nv = debugfs_create_dir(name, fbd->dbg_fbd); + + /* Generate a file for each Tx ring in the napi vector */ + for (i = 0; i < nv->txt_count; i++) { + struct fbnic_q_triad *qt = &nv->qt[i]; + unsigned int hw_idx; + + hw_idx = fbnic_ring_csr_base(&qt->cmpl) - + &fbd->uc_addr0[FBNIC_QUEUE(0)]; + hw_idx /= FBNIC_QUEUE_STRIDE; + + snprintf(name, sizeof(name), "twq0.%03d", hw_idx); + debugfs_create_file(name, 0400, nv->dbg_nv, &qt->sub0, + &fbnic_dbg_desc_fops); + + snprintf(name, sizeof(name), "twq1.%03d", hw_idx); + debugfs_create_file(name, 0400, nv->dbg_nv, &qt->sub1, + &fbnic_dbg_desc_fops); + + snprintf(name, sizeof(name), "tcq.%03d", hw_idx); + debugfs_create_file(name, 0400, nv->dbg_nv, &qt->cmpl, + &fbnic_dbg_desc_fops); + } + + /* Generate a file for each Rx ring in the napi vector */ + for (j = 0; j < nv->rxt_count; j++, i++) { + struct fbnic_q_triad *qt = &nv->qt[i]; + unsigned int hw_idx; + + hw_idx = fbnic_ring_csr_base(&qt->cmpl) - + &fbd->uc_addr0[FBNIC_QUEUE(0)]; + hw_idx /= FBNIC_QUEUE_STRIDE; + + snprintf(name, sizeof(name), "hpq.%03d", hw_idx); + debugfs_create_file(name, 0400, nv->dbg_nv, &qt->sub0, + &fbnic_dbg_desc_fops); + + snprintf(name, sizeof(name), "ppq.%03d", hw_idx); + debugfs_create_file(name, 0400, nv->dbg_nv, &qt->sub1, + &fbnic_dbg_desc_fops); + + snprintf(name, sizeof(name), "rcq.%03d", hw_idx); + debugfs_create_file(name, 0400, nv->dbg_nv, &qt->cmpl, + &fbnic_dbg_desc_fops); + } +} + +void fbnic_dbg_nv_exit(struct fbnic_napi_vector *nv) +{ + debugfs_remove_recursive(nv->dbg_nv); + nv->dbg_nv = NULL; +} + static int fbnic_dbg_mac_addr_show(struct seq_file *s, void *v) { struct fbnic_dev *fbd = s->private; @@ -170,6 +529,52 @@ static int fbnic_dbg_ipo_dst_show(struct seq_file *s, void *v) } DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ipo_dst); +static void fbnic_dbg_fw_mbx_display(struct seq_file *s, + struct fbnic_dev *fbd, int mbx_idx) +{ + struct fbnic_fw_mbx *mbx = &fbd->mbx[mbx_idx]; + char hdr[80]; + int i; + + /* Generate header */ + seq_puts(s, mbx_idx == FBNIC_IPC_MBX_RX_IDX ? "Rx\n" : "Tx\n"); + + seq_printf(s, "Rdy: %d Head: %d Tail: %d resp_error: %llu\n", + mbx->ready, mbx->head, mbx->tail, mbx->resp_error); + + snprintf(hdr, sizeof(hdr), "%3s %-4s %s %-12s %s %-3s %-16s\n", + "Idx", "Len", "E", "Addr", "F", "H", "Raw"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + for (i = 0; i < FBNIC_IPC_MBX_DESC_LEN; i++) { + u64 desc = __fbnic_mbx_rd_desc(fbd, mbx_idx, i); + + seq_printf(s, "%-3.2d %04lld %d %012llx %d %-3d %016llx\n", + i, FIELD_GET(FBNIC_IPC_MBX_DESC_LEN_MASK, desc), + !!(desc & FBNIC_IPC_MBX_DESC_EOM), + desc & FBNIC_IPC_MBX_DESC_ADDR_MASK, + !!(desc & FBNIC_IPC_MBX_DESC_FW_CMPL), + !!(desc & FBNIC_IPC_MBX_DESC_HOST_CMPL), + desc); + } +} + +static int fbnic_dbg_fw_mbx_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + + fbnic_dbg_fw_mbx_display(s, fbd, FBNIC_IPC_MBX_RX_IDX); + + /* Add blank line between Rx and Tx */ + seq_puts(s, "\n"); + + fbnic_dbg_fw_mbx_display(s, fbd, FBNIC_IPC_MBX_TX_IDX); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_fw_mbx); + static int fbnic_dbg_fw_log_show(struct seq_file *s, void *v) { struct fbnic_dev *fbd = s->private; @@ -249,6 +654,8 @@ void fbnic_dbg_fbd_init(struct fbnic_dev *fbd) &fbnic_dbg_ipo_src_fops); debugfs_create_file("ipo_dst", 0400, fbd->dbg_fbd, fbd, &fbnic_dbg_ipo_dst_fops); + debugfs_create_file("fw_mbx", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_fw_mbx_fops); debugfs_create_file("fw_log", 0400, fbd->dbg_fbd, fbd, &fbnic_dbg_fw_log_fops); } |