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Date: Wed, 12 Aug 2015 16:14:54 -0400
From: Roy Pledge <Roy.Pledge@...escale.com>
To: <linuxppc-dev@...ts.ozlabs.org>, <scottwood@...escale.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [v2 08/11] soc/qman: Add debugfs support for the QMan driver
From: Geoff Thorpe <Geoff.Thorpe@...escale.com>
Add debugfs sypport for querying the state of hardware based
queues managed by the DPAA 1.0 Queue Manager.
Signed-off-by: Geoff Thorpe <Geoff.Thorpe@...escale.com>
Signed-off-by: Emil Medve <Emilian.Medve@...escale.com>
Signed-off-by: Madalin Bucur <madalin.bucur@...escale.com>
Signed-off-by: Roy Pledge <Roy.Pledge@...escale.com>
---
drivers/soc/fsl/qbman/Makefile | 1 +
drivers/soc/fsl/qbman/dpaa_sys.h | 2 +
drivers/soc/fsl/qbman/qman-debugfs.c | 1313 ++++++++++++++++++++++++++++++++++
drivers/soc/fsl/qbman/qman_api.c | 60 +-
drivers/soc/fsl/qbman/qman_priv.h | 8 +
5 files changed, 1382 insertions(+), 2 deletions(-)
create mode 100644 drivers/soc/fsl/qbman/qman-debugfs.c
diff --git a/drivers/soc/fsl/qbman/Makefile b/drivers/soc/fsl/qbman/Makefile
index 2b53fbc..cce1f70 100644
--- a/drivers/soc/fsl/qbman/Makefile
+++ b/drivers/soc/fsl/qbman/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_FSL_QMAN_TEST) += qman-test.o
qman-test-y = qman_test.o
qman-test-$(CONFIG_FSL_QMAN_TEST_API) += qman_test_api.o
qman-test-$(CONFIG_FSL_QMAN_TEST_STASH) += qman_test_stash.o
+obj-$(CONFIG_FSL_QMAN_DEBUGFS) += qman-debugfs.o
diff --git a/drivers/soc/fsl/qbman/dpaa_sys.h b/drivers/soc/fsl/qbman/dpaa_sys.h
index 3cf446a..0dd341c 100644
--- a/drivers/soc/fsl/qbman/dpaa_sys.h
+++ b/drivers/soc/fsl/qbman/dpaa_sys.h
@@ -38,7 +38,9 @@
#include <linux/of_irq.h>
#include <linux/of_reserved_mem.h>
#include <linux/kthread.h>
+#include <linux/uaccess.h>
#include <linux/debugfs.h>
+#include <linux/vmalloc.h>
#include <linux/platform_device.h>
#include <linux/ctype.h>
diff --git a/drivers/soc/fsl/qbman/qman-debugfs.c b/drivers/soc/fsl/qbman/qman-debugfs.c
new file mode 100644
index 0000000..57585e8
--- /dev/null
+++ b/drivers/soc/fsl/qbman/qman-debugfs.c
@@ -0,0 +1,1313 @@
+/* Copyright 2010 - 2015 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "qman_priv.h"
+
+#define MAX_FQID (0x00ffffff)
+#define QM_FQD_BLOCK_SIZE 64
+#define QM_FQD_AR (0xC10)
+
+static u32 fqid_max;
+static u64 qman_ccsr_start;
+static u64 qman_ccsr_size;
+
+static const char * const state_txt[] = {
+ "Out of Service",
+ "Retired",
+ "Tentatively Scheduled",
+ "Truly Scheduled",
+ "Parked",
+ "Active, Active Held or Held Suspended",
+ "Unknown State 6",
+ "Unknown State 7",
+ NULL,
+};
+
+static const u8 fqd_states[] = {
+ QM_MCR_NP_STATE_OOS, QM_MCR_NP_STATE_RETIRED, QM_MCR_NP_STATE_TEN_SCHED,
+ QM_MCR_NP_STATE_TRU_SCHED, QM_MCR_NP_STATE_PARKED,
+ QM_MCR_NP_STATE_ACTIVE};
+
+struct mask_to_text {
+ u16 mask;
+ const char *txt;
+};
+
+struct mask_filter_s {
+ u16 mask;
+ u8 filter;
+};
+
+static const struct mask_filter_s mask_filter[] = {
+ {QM_FQCTRL_PREFERINCACHE, 0},
+ {QM_FQCTRL_PREFERINCACHE, 1},
+ {QM_FQCTRL_HOLDACTIVE, 0},
+ {QM_FQCTRL_HOLDACTIVE, 1},
+ {QM_FQCTRL_AVOIDBLOCK, 0},
+ {QM_FQCTRL_AVOIDBLOCK, 1},
+ {QM_FQCTRL_FORCESFDR, 0},
+ {QM_FQCTRL_FORCESFDR, 1},
+ {QM_FQCTRL_CPCSTASH, 0},
+ {QM_FQCTRL_CPCSTASH, 1},
+ {QM_FQCTRL_CTXASTASHING, 0},
+ {QM_FQCTRL_CTXASTASHING, 1},
+ {QM_FQCTRL_ORP, 0},
+ {QM_FQCTRL_ORP, 1},
+ {QM_FQCTRL_TDE, 0},
+ {QM_FQCTRL_TDE, 1},
+ {QM_FQCTRL_CGE, 0},
+ {QM_FQCTRL_CGE, 1}
+};
+
+static const struct mask_to_text fq_ctrl_text_list[] = {
+ {
+ .mask = QM_FQCTRL_PREFERINCACHE,
+ .txt = "Prefer in cache",
+ },
+ {
+ .mask = QM_FQCTRL_HOLDACTIVE,
+ .txt = "Hold active in portal",
+ },
+ {
+ .mask = QM_FQCTRL_AVOIDBLOCK,
+ .txt = "Avoid Blocking",
+ },
+ {
+ .mask = QM_FQCTRL_FORCESFDR,
+ .txt = "High-priority SFDRs",
+ },
+ {
+ .mask = QM_FQCTRL_CPCSTASH,
+ .txt = "CPC Stash Enable",
+ },
+ {
+ .mask = QM_FQCTRL_CTXASTASHING,
+ .txt = "Context-A stashing",
+ },
+ {
+ .mask = QM_FQCTRL_ORP,
+ .txt = "ORP Enable",
+ },
+ {
+ .mask = QM_FQCTRL_TDE,
+ .txt = "Tail-Drop Enable",
+ },
+ {
+ .mask = QM_FQCTRL_CGE,
+ .txt = "Congestion Group Enable",
+ },
+ {
+ .mask = 0,
+ .txt = NULL,
+ }
+};
+
+static const char *get_fqd_ctrl_text(u16 mask)
+{
+ int i = 0;
+
+ while (fq_ctrl_text_list[i].txt != NULL) {
+ if (fq_ctrl_text_list[i].mask == mask)
+ return fq_ctrl_text_list[i].txt;
+ i++;
+ }
+ return NULL;
+}
+
+static const struct mask_to_text stashing_text_list[] = {
+ {
+ .mask = QM_STASHING_EXCL_CTX,
+ .txt = "FQ Ctx Stash"
+ },
+ {
+ .mask = QM_STASHING_EXCL_DATA,
+ .txt = "Frame Data Stash",
+ },
+ {
+ .mask = QM_STASHING_EXCL_ANNOTATION,
+ .txt = "Frame Annotation Stash",
+ },
+ {
+ .mask = 0,
+ .txt = NULL,
+ },
+};
+
+static int user_input_convert(const char __user *user_buf, size_t count,
+ unsigned long *val)
+{
+ char buf[12];
+
+ if (count > sizeof(buf) - 1)
+ return -EINVAL;
+ if (copy_from_user(buf, user_buf, count))
+ return -EFAULT;
+ buf[count] = '\0';
+ if (kstrtoul(buf, 0, val))
+ return -EINVAL;
+ return 0;
+}
+
+struct line_buffer_fq {
+ u32 buf[8];
+ u32 buf_cnt;
+ int line_cnt;
+};
+
+static void add_to_line_buffer(struct line_buffer_fq *line_buf, u32 fqid,
+ struct seq_file *file)
+{
+ line_buf->buf[line_buf->buf_cnt] = fqid;
+ line_buf->buf_cnt++;
+ if (line_buf->buf_cnt == 8) {
+ /* Buffer is full, flush it */
+ if (line_buf->line_cnt != 0)
+ seq_puts(file, ",\n");
+ seq_printf(file, "0x%06x,0x%06x,0x%06x,0x%06x,0x%06x,"
+ "0x%06x,0x%06x,0x%06x",
+ line_buf->buf[0], line_buf->buf[1], line_buf->buf[2],
+ line_buf->buf[3], line_buf->buf[4], line_buf->buf[5],
+ line_buf->buf[6], line_buf->buf[7]);
+ line_buf->buf_cnt = 0;
+ line_buf->line_cnt++;
+ }
+}
+
+static void flush_line_buffer(struct line_buffer_fq *line_buf,
+ struct seq_file *file)
+{
+ if (line_buf->buf_cnt) {
+ int y = 0;
+
+ if (line_buf->line_cnt != 0)
+ seq_puts(file, ",\n");
+ while (y != line_buf->buf_cnt) {
+ if (y+1 == line_buf->buf_cnt)
+ seq_printf(file, "0x%06x", line_buf->buf[y]);
+ else
+ seq_printf(file, "0x%06x,", line_buf->buf[y]);
+ y++;
+ }
+ line_buf->line_cnt++;
+ }
+ if (line_buf->line_cnt)
+ seq_putc(file, '\n');
+}
+
+static struct dentry *dfs_root; /* debugfs root directory */
+
+/* Query Frame Queue Non Programmable Fields */
+
+struct query_fq_np_fields_data_s {
+ u32 fqid;
+};
+static struct query_fq_np_fields_data_s query_fq_np_fields_data = {
+ .fqid = 1,
+};
+
+static int query_fq_np_fields_show(struct seq_file *file, void *offset)
+{
+ int ret;
+ struct qm_mcr_queryfq_np np;
+ struct qman_fq fq;
+
+ fq.fqid = query_fq_np_fields_data.fqid;
+ ret = qman_query_fq_np(&fq, &np);
+ if (ret)
+ return ret;
+ /* Print state */
+ seq_printf(file, "Query FQ Non Programmable Fields Result fqid 0x%x\n",
+ fq.fqid);
+ seq_printf(file, " force eligible pending: %s\n",
+ (np.state & QM_MCR_NP_STATE_FE) ? "yes" : "no");
+ seq_printf(file, " retirement pending: %s\n",
+ (np.state & QM_MCR_NP_STATE_R) ? "yes" : "no");
+ seq_printf(file, " state: %s\n",
+ state_txt[np.state & QM_MCR_NP_STATE_MASK]);
+ seq_printf(file, " fq_link: 0x%x\n", np.fqd_link);
+ seq_printf(file, " odp_seq: %u\n", np.odp_seq);
+ seq_printf(file, " orp_nesn: %u\n", np.orp_nesn);
+ seq_printf(file, " orp_ea_hseq: %u\n", np.orp_ea_hseq);
+ seq_printf(file, " orp_ea_tseq: %u\n", np.orp_ea_tseq);
+ seq_printf(file, " orp_ea_hptr: 0x%x\n", np.orp_ea_hptr);
+ seq_printf(file, " orp_ea_tptr: 0x%x\n", np.orp_ea_tptr);
+ seq_printf(file, " pfdr_hptr: 0x%x\n", np.pfdr_hptr);
+ seq_printf(file, " pfdr_tptr: 0x%x\n", np.pfdr_tptr);
+ seq_printf(file, " is: ics_surp contains a %s\n",
+ (np.is) ? "deficit" : "surplus");
+ seq_printf(file, " ics_surp: %u\n", np.ics_surp);
+ seq_printf(file, " byte_cnt: %u\n", np.byte_cnt);
+ seq_printf(file, " frm_cnt: %u\n", np.frm_cnt);
+ seq_printf(file, " ra1_sfdr: 0x%x\n", np.ra1_sfdr);
+ seq_printf(file, " ra2_sfdr: 0x%x\n", np.ra2_sfdr);
+ seq_printf(file, " od1_sfdr: 0x%x\n", np.od1_sfdr);
+ seq_printf(file, " od2_sfdr: 0x%x\n", np.od2_sfdr);
+ seq_printf(file, " od3_sfdr: 0x%x\n", np.od3_sfdr);
+ return 0;
+}
+
+static int query_fq_np_fields_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, query_fq_np_fields_show, NULL);
+}
+
+static ssize_t query_fq_np_fields_write(struct file *f,
+ const char __user *buf, size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ if (val > MAX_FQID)
+ return -EINVAL;
+ query_fq_np_fields_data.fqid = (u32)val;
+ return count;
+}
+
+static const struct file_operations query_fq_np_fields_fops = {
+ .owner = THIS_MODULE,
+ .open = query_fq_np_fields_open,
+ .read = seq_read,
+ .write = query_fq_np_fields_write,
+ .release = single_release,
+};
+
+/* Frame Queue Programmable Fields */
+
+struct query_fq_fields_data_s {
+ u32 fqid;
+};
+
+static struct query_fq_fields_data_s query_fq_fields_data = {
+ .fqid = 1,
+};
+
+static int query_fq_fields_show(struct seq_file *file, void *offset)
+{
+ int ret;
+ struct qm_fqd fqd;
+ struct qman_fq fq;
+ int i = 0;
+
+ memset(&fqd, 0, sizeof(struct qm_fqd));
+ fq.fqid = query_fq_fields_data.fqid;
+ ret = qman_query_fq(&fq, &fqd);
+ if (ret)
+ return ret;
+ seq_printf(file, "Query FQ Programmable Fields Result fqid 0x%x\n",
+ fq.fqid);
+ seq_printf(file, " orprws: %u\n", fqd.orprws);
+ seq_printf(file, " oa: %u\n", fqd.oa);
+ seq_printf(file, " olws: %u\n", fqd.olws);
+
+ seq_printf(file, " cgid: %u\n", fqd.cgid);
+
+ if ((fqd.fq_ctrl & QM_FQCTRL_MASK) == 0)
+ seq_puts(file, " fq_ctrl: None\n");
+ else {
+ i = 0;
+ seq_puts(file, " fq_ctrl:\n");
+ while (fq_ctrl_text_list[i].txt != NULL) {
+ if ((fqd.fq_ctrl & QM_FQCTRL_MASK) &
+ fq_ctrl_text_list[i].mask)
+ seq_printf(file, " %s\n",
+ fq_ctrl_text_list[i].txt);
+ i++;
+ }
+ }
+ seq_printf(file, " dest_channel: %u\n", fqd.dest.channel);
+ seq_printf(file, " dest_wq: %u\n", fqd.dest.wq);
+ seq_printf(file, " ics_cred: %u\n", fqd.ics_cred);
+ seq_printf(file, " td_mant: %u\n", fqd.td.mant);
+ seq_printf(file, " td_exp: %u\n", fqd.td.exp);
+
+ seq_printf(file, " ctx_b: 0x%x\n", fqd.context_b);
+
+ seq_printf(file, " ctx_a: 0x%llx\n", qm_fqd_stashing_get64(&fqd));
+ /* Any stashing configured */
+ if ((fqd.context_a.stashing.exclusive & 0x7) == 0)
+ seq_puts(file, " ctx_a_stash_exclusive: None\n");
+ else {
+ seq_puts(file, " ctx_a_stash_exclusive:\n");
+ i = 0;
+ while (stashing_text_list[i].txt != NULL) {
+ if ((fqd.fq_ctrl & 0x7) & stashing_text_list[i].mask)
+ seq_printf(file, " %s\n",
+ stashing_text_list[i].txt);
+ i++;
+ }
+ }
+ seq_printf(file, " ctx_a_stash_annotation_cl: %u\n",
+ fqd.context_a.stashing.annotation_cl);
+ seq_printf(file, " ctx_a_stash_data_cl: %u\n",
+ fqd.context_a.stashing.data_cl);
+ seq_printf(file, " ctx_a_stash_context_cl: %u\n",
+ fqd.context_a.stashing.context_cl);
+ return 0;
+}
+
+static int query_fq_fields_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, query_fq_fields_show, NULL);
+}
+
+static ssize_t query_fq_fields_write(struct file *f,
+ const char __user *buf, size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ if (val > MAX_FQID)
+ return -EINVAL;
+ query_fq_fields_data.fqid = (u32)val;
+ return count;
+}
+
+static const struct file_operations query_fq_fields_fops = {
+ .owner = THIS_MODULE,
+ .open = query_fq_fields_open,
+ .read = seq_read,
+ .write = query_fq_fields_write,
+ .release = single_release,
+};
+
+/* Query WQ lengths */
+
+struct query_wq_lengths_data_s {
+ union {
+ u16 channel_wq; /* ignores wq (3 lsbits) */
+ struct {
+ u16 id:13; /* qm_channel */
+ u16 __reserved:3;
+ } __packed channel;
+ };
+};
+static struct query_wq_lengths_data_s query_wq_lengths_data;
+static int query_wq_lengths_show(struct seq_file *file, void *offset)
+{
+ int ret;
+ struct qm_mcr_querywq wq;
+ int i;
+
+ memset(&wq, 0, sizeof(struct qm_mcr_querywq));
+ wq.channel.id = query_wq_lengths_data.channel.id;
+ ret = qman_query_wq(0, &wq);
+ if (ret)
+ return ret;
+ seq_printf(file, "Query Result For Channel: 0x%x\n", wq.channel.id);
+ for (i = 0; i < 8; i++)
+ /* mask out upper 4 bits since they are not part of length */
+ seq_printf(file, " wq%d_len : %u\n", i, wq.wq_len[i] & 0x0fff);
+ return 0;
+}
+
+static int query_wq_lengths_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, query_wq_lengths_show, NULL);
+}
+
+static ssize_t query_wq_lengths_write(struct file *f,
+ const char __user *buf, size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ if (val > 0xfff8)
+ return -EINVAL;
+ query_wq_lengths_data.channel.id = (u16)val;
+ return count;
+}
+
+static const struct file_operations query_wq_lengths_fops = {
+ .owner = THIS_MODULE,
+ .open = query_wq_lengths_open,
+ .read = seq_read,
+ .write = query_wq_lengths_write,
+ .release = single_release,
+};
+
+/* Query CGR */
+
+struct query_cgr_s {
+ u8 cgid;
+};
+static struct query_cgr_s query_cgr_data;
+
+static int query_cgr_show(struct seq_file *file, void *offset)
+{
+ int ret;
+ struct qm_mcr_querycgr cgrd;
+ struct qman_cgr cgr;
+ int i, j;
+ u32 mask;
+
+ memset(&cgr, 0, sizeof(cgr));
+ memset(&cgrd, 0, sizeof(cgrd));
+ cgr.cgrid = query_cgr_data.cgid;
+ ret = qman_query_cgr(&cgr, &cgrd);
+ if (ret)
+ return ret;
+ seq_printf(file, "Query CGR id 0x%x\n", cgr.cgrid);
+ seq_printf(file, " wr_parm_g MA: %u, Mn: %u, SA: %u, Sn: %u, Pn: %u\n",
+ cgrd.cgr.wr_parm_g.MA, cgrd.cgr.wr_parm_g.Mn,
+ cgrd.cgr.wr_parm_g.SA, cgrd.cgr.wr_parm_g.Sn,
+ cgrd.cgr.wr_parm_g.Pn);
+
+ seq_printf(file, " wr_parm_y MA: %u, Mn: %u, SA: %u, Sn: %u, Pn: %u\n",
+ cgrd.cgr.wr_parm_y.MA, cgrd.cgr.wr_parm_y.Mn,
+ cgrd.cgr.wr_parm_y.SA, cgrd.cgr.wr_parm_y.Sn,
+ cgrd.cgr.wr_parm_y.Pn);
+
+ seq_printf(file, " wr_parm_r MA: %u, Mn: %u, SA: %u, Sn: %u, Pn: %u\n",
+ cgrd.cgr.wr_parm_r.MA, cgrd.cgr.wr_parm_r.Mn,
+ cgrd.cgr.wr_parm_r.SA, cgrd.cgr.wr_parm_r.Sn,
+ cgrd.cgr.wr_parm_r.Pn);
+
+ seq_printf(file, " wr_en_g: %u, wr_en_y: %u, we_en_r: %u\n",
+ cgrd.cgr.wr_en_g, cgrd.cgr.wr_en_y, cgrd.cgr.wr_en_r);
+
+ seq_printf(file, " cscn_en: %u\n", cgrd.cgr.cscn_en);
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) {
+ seq_puts(file, " cscn_targ_dcp:\n");
+ mask = 0x80000000;
+ for (i = 0; i < 32; i++) {
+ if (cgrd.cgr.cscn_targ & mask)
+ seq_printf(file, " send CSCN to dcp %u\n",
+ (31 - i));
+ mask >>= 1;
+ }
+
+ seq_puts(file, " cscn_targ_swp:\n");
+ for (i = 0; i < 4; i++) {
+ mask = 0x80000000;
+ for (j = 0; j < 32; j++) {
+ if (cgrd.cscn_targ_swp[i] & mask)
+ seq_printf(file, " send CSCN to swp"
+ " %u\n", (127 - (i * 32) - j));
+ mask >>= 1;
+ }
+ }
+ } else {
+ seq_printf(file, " cscn_targ: %u\n", cgrd.cgr.cscn_targ);
+ }
+ seq_printf(file, " cstd_en: %u\n", cgrd.cgr.cstd_en);
+ seq_printf(file, " cs: %u\n", cgrd.cgr.cs);
+
+ seq_printf(file, " cs_thresh_TA: %u, cs_thresh_Tn: %u\n",
+ cgrd.cgr.cs_thres.TA, cgrd.cgr.cs_thres.Tn);
+
+ seq_printf(file, " mode: %s\n",
+ (cgrd.cgr.mode & QMAN_CGR_MODE_FRAME) ?
+ "frame count" : "byte count");
+ seq_printf(file, " i_bcnt: %llu\n", qm_mcr_querycgr_i_get64(&cgrd));
+ seq_printf(file, " a_bcnt: %llu\n", qm_mcr_querycgr_a_get64(&cgrd));
+
+ return 0;
+}
+
+static int query_cgr_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, query_cgr_show, NULL);
+}
+
+static ssize_t query_cgr_write(struct file *f, const char __user *buf,
+ size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ if (val > 0xff)
+ return -EINVAL;
+ query_cgr_data.cgid = (u8)val;
+ return count;
+}
+
+static const struct file_operations query_cgr_fops = {
+ .owner = THIS_MODULE,
+ .open = query_cgr_open,
+ .read = seq_read,
+ .write = query_cgr_write,
+ .release = single_release,
+};
+
+/* Test Write CGR */
+
+struct test_write_cgr_s {
+ u64 i_bcnt;
+ u8 cgid;
+};
+static struct test_write_cgr_s test_write_cgr_data;
+
+static int testwrite_cgr_show(struct seq_file *file, void *offset)
+{
+ int ret;
+ struct qm_mcr_cgrtestwrite result;
+ struct qman_cgr cgr;
+ u64 i_bcnt;
+
+ memset(&cgr, 0, sizeof(struct qman_cgr));
+ memset(&result, 0, sizeof(struct qm_mcr_cgrtestwrite));
+ cgr.cgrid = test_write_cgr_data.cgid;
+ i_bcnt = test_write_cgr_data.i_bcnt;
+ ret = qman_testwrite_cgr(&cgr, i_bcnt, &result);
+ if (ret)
+ return ret;
+ seq_printf(file, "CGR Test Write CGR id 0x%x\n", cgr.cgrid);
+ seq_printf(file, " wr_parm_g MA: %u, Mn: %u, SA: %u, Sn: %u, Pn: %u\n",
+ result.cgr.wr_parm_g.MA, result.cgr.wr_parm_g.Mn,
+ result.cgr.wr_parm_g.SA, result.cgr.wr_parm_g.Sn,
+ result.cgr.wr_parm_g.Pn);
+ seq_printf(file, " wr_parm_y MA: %u, Mn: %u, SA: %u, Sn: %u, Pn: %u\n",
+ result.cgr.wr_parm_y.MA, result.cgr.wr_parm_y.Mn,
+ result.cgr.wr_parm_y.SA, result.cgr.wr_parm_y.Sn,
+ result.cgr.wr_parm_y.Pn);
+ seq_printf(file, " wr_parm_r MA: %u, Mn: %u, SA: %u, Sn: %u, Pn: %u\n",
+ result.cgr.wr_parm_r.MA, result.cgr.wr_parm_r.Mn,
+ result.cgr.wr_parm_r.SA, result.cgr.wr_parm_r.Sn,
+ result.cgr.wr_parm_r.Pn);
+ seq_printf(file, " wr_en_g: %u, wr_en_y: %u, we_en_r: %u\n",
+ result.cgr.wr_en_g, result.cgr.wr_en_y, result.cgr.wr_en_r);
+ seq_printf(file, " cscn_en: %u\n", result.cgr.cscn_en);
+ seq_printf(file, " cscn_targ: %u\n", result.cgr.cscn_targ);
+ seq_printf(file, " cstd_en: %u\n", result.cgr.cstd_en);
+ seq_printf(file, " cs: %u\n", result.cgr.cs);
+ seq_printf(file, " cs_thresh_TA: %u, cs_thresh_Tn: %u\n",
+ result.cgr.cs_thres.TA, result.cgr.cs_thres.Tn);
+
+ /* Add Mode for Si 2 */
+ seq_printf(file, " mode: %s\n",
+ (result.cgr.mode & QMAN_CGR_MODE_FRAME) ?
+ "frame count" : "byte count");
+
+ seq_printf(file, " i_bcnt: %llu\n",
+ qm_mcr_cgrtestwrite_i_get64(&result));
+ seq_printf(file, " a_bcnt: %llu\n",
+ qm_mcr_cgrtestwrite_a_get64(&result));
+ seq_printf(file, " wr_prob_g: %u\n", result.wr_prob_g);
+ seq_printf(file, " wr_prob_y: %u\n", result.wr_prob_y);
+ seq_printf(file, " wr_prob_r: %u\n", result.wr_prob_r);
+ return 0;
+}
+
+static int testwrite_cgr_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, testwrite_cgr_show, NULL);
+}
+
+static const struct file_operations testwrite_cgr_fops = {
+ .owner = THIS_MODULE,
+ .open = testwrite_cgr_open,
+ .read = seq_read,
+ .release = single_release,
+};
+
+
+static int testwrite_cgr_ibcnt_show(struct seq_file *file, void *offset)
+{
+ seq_printf(file, "i_bcnt: %llu\n", test_write_cgr_data.i_bcnt);
+ return 0;
+}
+static int testwrite_cgr_ibcnt_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, testwrite_cgr_ibcnt_show, NULL);
+}
+
+static ssize_t testwrite_cgr_ibcnt_write(struct file *f, const char __user *buf,
+ size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ test_write_cgr_data.i_bcnt = val;
+ return count;
+}
+
+static const struct file_operations teswrite_cgr_ibcnt_fops = {
+ .owner = THIS_MODULE,
+ .open = testwrite_cgr_ibcnt_open,
+ .read = seq_read,
+ .write = testwrite_cgr_ibcnt_write,
+ .release = single_release,
+};
+
+static int testwrite_cgr_cgrid_show(struct seq_file *file, void *offset)
+{
+ seq_printf(file, "cgrid: %u\n", (u32)test_write_cgr_data.cgid);
+ return 0;
+}
+static int testwrite_cgr_cgrid_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, testwrite_cgr_cgrid_show, NULL);
+}
+
+static ssize_t testwrite_cgr_cgrid_write(struct file *f, const char __user *buf,
+ size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ if (val > 0xff)
+ return -EINVAL;
+ test_write_cgr_data.cgid = (u8)val;
+ return count;
+}
+
+static const struct file_operations teswrite_cgr_cgrid_fops = {
+ .owner = THIS_MODULE,
+ .open = testwrite_cgr_cgrid_open,
+ .read = seq_read,
+ .write = testwrite_cgr_cgrid_write,
+ .release = single_release,
+};
+
+/* Query Congestion State */
+
+static int query_congestion_show(struct seq_file *file, void *offset)
+{
+ int ret;
+ struct qm_mcr_querycongestion cs;
+ int i, j, in_cong = 0;
+ u32 mask;
+
+ memset(&cs, 0, sizeof(struct qm_mcr_querycongestion));
+ ret = qman_query_congestion(&cs);
+ if (ret)
+ return ret;
+ seq_puts(file, "Query Congestion Result\n");
+ for (i = 0; i < 8; i++) {
+ mask = 0x80000000;
+ for (j = 0; j < 32; j++) {
+ if (cs.state.__state[i] & mask) {
+ in_cong = 1;
+ seq_printf(file, " cg %u: %s\n", (i*32)+j,
+ "in congestion");
+ }
+ mask >>= 1;
+ }
+ }
+ if (!in_cong)
+ seq_puts(file, " All congestion groups not congested.\n");
+ return 0;
+}
+
+static int query_congestion_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, query_congestion_show, NULL);
+}
+
+static const struct file_operations query_congestion_fops = {
+ .owner = THIS_MODULE,
+ .open = query_congestion_open,
+ .read = seq_read,
+ .release = single_release,
+};
+
+/* QMan register */
+
+struct qman_register_s {
+ u32 val;
+};
+static struct qman_register_s qman_register_data;
+
+static void init_ccsrmempeek(void)
+{
+ struct device_node *dn;
+ const u32 *regaddr_p;
+
+ dn = of_find_compatible_node(NULL, NULL, "fsl,qman");
+ if (!dn) {
+ pr_info("No fsl,qman node\n");
+ return;
+ }
+ regaddr_p = of_get_address(dn, 0, &qman_ccsr_size, NULL);
+ if (!regaddr_p) {
+ of_node_put(dn);
+ return;
+ }
+ qman_ccsr_start = of_translate_address(dn, regaddr_p);
+ of_node_put(dn);
+}
+/* This function provides access to QMan ccsr memory map */
+static int qman_ccsrmempeek(u32 *val, u32 offset)
+{
+ void __iomem *addr;
+ u64 phys_addr;
+
+ if (!qman_ccsr_start)
+ return -EINVAL;
+
+ if (offset > qman_ccsr_size - sizeof(u32))
+ return -EINVAL;
+
+ phys_addr = qman_ccsr_start + offset;
+ addr = ioremap(phys_addr, sizeof(u32));
+ if (!addr) {
+ pr_err("%s(): ioremap() failed\n", __func__);
+ return -EINVAL;
+ }
+ *val = in_be32(addr);
+ iounmap(addr);
+ return 0;
+}
+
+static int qman_ccsrmempeek_show(struct seq_file *file, void *offset)
+{
+ u32 b;
+
+ qman_ccsrmempeek(&b, qman_register_data.val);
+ seq_printf(file, "QMan register offset = 0x%x\n",
+ qman_register_data.val);
+ seq_printf(file, "value = 0x%08x\n", b);
+
+ return 0;
+}
+
+static int qman_ccsrmempeek_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, qman_ccsrmempeek_show, NULL);
+}
+
+static ssize_t qman_ccsrmempeek_write(struct file *f, const char __user *buf,
+ size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ /* multiple of 4 */
+ if (val > qman_ccsr_size - sizeof(u32)) {
+ pr_info("Input 0x%lx > 0x%llx\n",
+ val, qman_ccsr_size - sizeof(u32));
+ return -EINVAL;
+ }
+ if (val & 0x3) {
+ pr_info("Input 0x%lx not multiple of 4\n", val);
+ return -EINVAL;
+ }
+ qman_register_data.val = val;
+ return count;
+}
+
+static const struct file_operations qman_ccsrmempeek_fops = {
+ .owner = THIS_MODULE,
+ .open = qman_ccsrmempeek_open,
+ .read = seq_read,
+ .write = qman_ccsrmempeek_write,
+};
+
+/* QMan state */
+
+static int qman_fqd_state_show(struct seq_file *file, void *offset)
+{
+ struct qm_mcr_queryfq_np np;
+ struct qman_fq fq;
+ struct line_buffer_fq line_buf;
+ int ret, i;
+ u8 *state = file->private;
+ u32 qm_fq_state_cnt[ARRAY_SIZE(fqd_states)];
+
+ memset(qm_fq_state_cnt, 0, sizeof(qm_fq_state_cnt));
+ memset(&line_buf, 0, sizeof(line_buf));
+
+ seq_printf(file, "List of fq ids in state: %s\n", state_txt[*state]);
+
+ for (i = 1; i < fqid_max; i++) {
+ fq.fqid = i;
+ ret = qman_query_fq_np(&fq, &np);
+ if (ret)
+ return ret;
+ if (*state == (np.state & QM_MCR_NP_STATE_MASK))
+ add_to_line_buffer(&line_buf, fq.fqid, file);
+ /* Keep a summary count of all states */
+ if ((np.state & QM_MCR_NP_STATE_MASK) < ARRAY_SIZE(fqd_states))
+ qm_fq_state_cnt[(np.state & QM_MCR_NP_STATE_MASK)]++;
+ }
+ flush_line_buffer(&line_buf, file);
+
+ for (i = 0; i < ARRAY_SIZE(fqd_states); i++) {
+ seq_printf(file, "%s count = %u\n", state_txt[i],
+ qm_fq_state_cnt[i]);
+ }
+ return 0;
+}
+
+static int qman_fqd_state_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, qman_fqd_state_show, inode->i_private);
+}
+
+static const struct file_operations qman_fqd_state_fops = {
+ .owner = THIS_MODULE,
+ .open = qman_fqd_state_open,
+ .read = seq_read,
+};
+
+static int qman_fqd_ctrl_show(struct seq_file *file, void *offset)
+{
+ struct qm_fqd fqd;
+ struct qman_fq fq;
+ u32 fq_en_cnt = 0, fq_di_cnt = 0;
+ int ret, i;
+ struct mask_filter_s *data = file->private;
+ const char *ctrl_txt = get_fqd_ctrl_text(data->mask);
+ struct line_buffer_fq line_buf;
+
+ memset(&line_buf, 0, sizeof(line_buf));
+ seq_printf(file, "List of fq ids with: %s :%s\n",
+ ctrl_txt, (data->filter) ? "enabled" : "disabled");
+ for (i = 1; i < fqid_max; i++) {
+ fq.fqid = i;
+ memset(&fqd, 0, sizeof(struct qm_fqd));
+ ret = qman_query_fq(&fq, &fqd);
+ if (ret)
+ return ret;
+ if (data->filter) {
+ if (fqd.fq_ctrl & data->mask)
+ add_to_line_buffer(&line_buf, fq.fqid, file);
+ } else {
+ if (!(fqd.fq_ctrl & data->mask))
+ add_to_line_buffer(&line_buf, fq.fqid, file);
+ }
+ if (fqd.fq_ctrl & data->mask)
+ fq_en_cnt++;
+ else
+ fq_di_cnt++;
+ }
+ flush_line_buffer(&line_buf, file);
+
+ seq_printf(file, "Total FQD with: %s : enabled = %u\n",
+ ctrl_txt, fq_en_cnt);
+ seq_printf(file, "Total FQD with: %s : disabled = %u\n",
+ ctrl_txt, fq_di_cnt);
+ return 0;
+}
+
+/* QMan ctrl CGE, TDE, ORP, CTX, CPC, SFDR, BLOCK, HOLD, CACHE */
+static int qman_fqd_ctrl_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, qman_fqd_ctrl_show, inode->i_private);
+}
+
+static const struct file_operations qman_fqd_ctrl_fops = {
+ .owner = THIS_MODULE,
+ .open = qman_fqd_ctrl_open,
+ .read = seq_read,
+};
+
+/* QMan ctrl summary */
+
+/* QMan summary state */
+
+static int qman_fqd_non_prog_summary_show(struct seq_file *file, void *offset)
+{
+ struct qm_mcr_queryfq_np np;
+ struct qman_fq fq;
+ int ret, i;
+ u32 qm_fq_state_cnt[ARRAY_SIZE(fqd_states)];
+
+ memset(qm_fq_state_cnt, 0, sizeof(qm_fq_state_cnt));
+
+ for (i = 1; i < fqid_max; i++) {
+ fq.fqid = i;
+ ret = qman_query_fq_np(&fq, &np);
+ if (ret)
+ return ret;
+ /* Keep a summary count of all states */
+ if ((np.state & QM_MCR_NP_STATE_MASK) < ARRAY_SIZE(fqd_states))
+ qm_fq_state_cnt[(np.state & QM_MCR_NP_STATE_MASK)]++;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(fqd_states); i++) {
+ seq_printf(file, "%s count = %u\n", state_txt[i],
+ qm_fq_state_cnt[i]);
+ }
+ return 0;
+}
+
+static int qman_fqd_prog_summary_show(struct seq_file *file, void *offset)
+{
+ struct qm_fqd fqd;
+ struct qman_fq fq;
+ int ret, i, j;
+ u32 qm_prog_cnt[ARRAY_SIZE(mask_filter)/2];
+
+ memset(qm_prog_cnt, 0, sizeof(qm_prog_cnt));
+
+ for (i = 1; i < fqid_max; i++) {
+ memset(&fqd, 0, sizeof(struct qm_fqd));
+ fq.fqid = i;
+ ret = qman_query_fq(&fq, &fqd);
+ if (ret)
+ return ret;
+ /* Keep a summary count of all states */
+ for (j = 0; j < ARRAY_SIZE(mask_filter); j += 2)
+ if ((fqd.fq_ctrl & QM_FQCTRL_MASK) &
+ mask_filter[j].mask)
+ qm_prog_cnt[j/2]++;
+ }
+ for (i = 0; i < ARRAY_SIZE(mask_filter) / 2; i++) {
+ seq_printf(file, "%s count = %u\n",
+ get_fqd_ctrl_text(mask_filter[i*2].mask),
+ qm_prog_cnt[i]);
+ }
+ return 0;
+}
+
+static int qman_fqd_summary_show(struct seq_file *file, void *offset)
+{
+ int ret;
+
+ /* Display summary of non programmable fields */
+ ret = qman_fqd_non_prog_summary_show(file, offset);
+ if (ret)
+ return ret;
+ seq_puts(file, "-----------------------------------------\n");
+ /* Display programmable fields */
+ ret = qman_fqd_prog_summary_show(file, offset);
+ return ret;
+}
+
+static int qman_fqd_summary_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, qman_fqd_summary_show, NULL);
+}
+
+static const struct file_operations qman_fqd_summary_fops = {
+ .owner = THIS_MODULE,
+ .open = qman_fqd_summary_open,
+ .read = seq_read,
+};
+
+/* QMan destination work queue */
+
+struct qman_dest_wq_s {
+ u16 wq_id;
+};
+static struct qman_dest_wq_s qman_dest_wq_data = {
+ .wq_id = 0,
+};
+
+static int qman_fqd_dest_wq_show(struct seq_file *file, void *offset)
+{
+ struct qm_fqd fqd;
+ struct qman_fq fq;
+ int ret, i;
+ u16 *wq, wq_id = qman_dest_wq_data.wq_id;
+ struct line_buffer_fq line_buf;
+
+ memset(&line_buf, 0, sizeof(line_buf));
+ /* use vmalloc : need to allocate large memory region and don't
+ * require the memory to be physically contiguous. */
+ wq = vzalloc(sizeof(u16) * (0xFFFF+1));
+ if (!wq)
+ return -ENOMEM;
+
+ seq_printf(file, "List of fq ids with destination work queue id"
+ " = 0x%x\n", wq_id);
+
+ for (i = 1; i < fqid_max; i++) {
+ fq.fqid = i;
+ memset(&fqd, 0, sizeof(struct qm_fqd));
+ ret = qman_query_fq(&fq, &fqd);
+ if (ret) {
+ vfree(wq);
+ return ret;
+ }
+ if (wq_id == fqd.dest_wq)
+ add_to_line_buffer(&line_buf, fq.fqid, file);
+ wq[fqd.dest_wq]++;
+ }
+ flush_line_buffer(&line_buf, file);
+
+ seq_puts(file, "Summary of all FQD destination work queue values\n");
+ for (i = 0; i < 0xFFFF; i++) {
+ if (wq[i])
+ seq_printf(file, "Channel: 0x%x WQ: 0x%x WQ_ID: 0x%x, "
+ "count = %u\n", i >> 3, i & 0x3, i, wq[i]);
+ }
+ vfree(wq);
+ return 0;
+}
+
+static ssize_t qman_fqd_dest_wq_write(struct file *f, const char __user *buf,
+ size_t count, loff_t *off)
+{
+ int ret;
+ unsigned long val;
+
+ ret = user_input_convert(buf, count, &val);
+ if (ret)
+ return ret;
+ if (val > 0xFFFF)
+ return -EINVAL;
+ qman_dest_wq_data.wq_id = val;
+ return count;
+}
+
+static int qman_fqd_dest_wq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, qman_fqd_dest_wq_show, NULL);
+}
+
+static const struct file_operations qman_fqd_dest_wq_fops = {
+ .owner = THIS_MODULE,
+ .open = qman_fqd_dest_wq_open,
+ .read = seq_read,
+ .write = qman_fqd_dest_wq_write,
+};
+
+/* QMan Intra-Class Scheduling Credit */
+
+static int qman_fqd_cred_show(struct seq_file *file, void *offset)
+{
+ struct qm_fqd fqd;
+ struct qman_fq fq;
+ int ret, i;
+ u32 fq_cnt = 0;
+ struct line_buffer_fq line_buf;
+
+ memset(&line_buf, 0, sizeof(line_buf));
+ seq_puts(file, "List of fq ids with Intra-Class Scheduling Credit > 0"
+ "\n");
+
+ for (i = 1; i < fqid_max; i++) {
+ fq.fqid = i;
+ memset(&fqd, 0, sizeof(struct qm_fqd));
+ ret = qman_query_fq(&fq, &fqd);
+ if (ret)
+ return ret;
+ if (fqd.ics_cred > 0) {
+ add_to_line_buffer(&line_buf, fq.fqid, file);
+ fq_cnt++;
+ }
+ }
+ flush_line_buffer(&line_buf, file);
+
+ seq_printf(file, "Total FQD with ics_cred > 0 = %d\n", fq_cnt);
+ return 0;
+}
+
+static int qman_fqd_cred_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, qman_fqd_cred_show, NULL);
+}
+
+static const struct file_operations qman_fqd_cred_fops = {
+ .owner = THIS_MODULE,
+ .open = qman_fqd_cred_open,
+ .read = seq_read,
+};
+
+/* helper macros used in qman_debugfs_init */
+#define QMAN_DBGFS_ENTRY(name, mode, parent, data, fops) \
+ do { \
+ d = debugfs_create_file(name, \
+ mode, parent, \
+ data, \
+ fops); \
+ if (d == NULL) { \
+ ret = -ENOMEM; \
+ goto _return; \
+ } \
+ } while (0)
+
+/* dfs_root as parent */
+#define QMAN_DBGFS_ENTRY_ROOT(name, mode, data, fops) \
+ QMAN_DBGFS_ENTRY(name, mode, dfs_root, data, fops)
+
+/* fqd_root as parent */
+#define QMAN_DBGFS_ENTRY_FQDROOT(name, mode, data, fops) \
+ QMAN_DBGFS_ENTRY(name, mode, fqd_root, data, fops)
+
+/* fqd state */
+#define QMAN_DBGFS_ENTRY_FQDSTATE(name, index) \
+ QMAN_DBGFS_ENTRY_FQDROOT(name, S_IRUGO, \
+ (void *)&mask_filter[index], &qman_fqd_ctrl_fops)
+
+static int __init qman_debugfs_init(void)
+{
+ int ret = 0;
+ struct dentry *d, *fqd_root;
+ u32 reg;
+
+ fqid_max = 0;
+ init_ccsrmempeek();
+ if (qman_ccsr_start) {
+ if (!qman_ccsrmempeek(®, QM_FQD_AR)) {
+ /* extract the size of the FQD window */
+ reg = reg & 0x3f;
+ /* calculate valid frame queue descriptor range */
+ fqid_max = (1 << (reg + 1)) / QM_FQD_BLOCK_SIZE;
+ }
+ }
+
+ dfs_root = debugfs_create_dir("qman", NULL);
+ fqd_root = debugfs_create_dir("fqd", dfs_root);
+ if (dfs_root == NULL || fqd_root == NULL) {
+ pr_err("Cannot create dir\n");
+ return -ENOMEM;
+ }
+
+ if (fqid_max) {
+ QMAN_DBGFS_ENTRY_ROOT("ccsrmempeek", S_IRUGO | S_IWUGO,
+ NULL, &qman_ccsrmempeek_fops);
+ }
+ QMAN_DBGFS_ENTRY_ROOT("query_fq_np_fields", S_IRUGO | S_IWUGO,
+ &query_fq_np_fields_data, &query_fq_np_fields_fops);
+
+ QMAN_DBGFS_ENTRY_ROOT("query_fq_fields", S_IRUGO | S_IWUGO,
+ &query_fq_fields_data, &query_fq_fields_fops);
+
+ QMAN_DBGFS_ENTRY_ROOT("query_wq_lengths", S_IRUGO | S_IWUGO,
+ &query_wq_lengths_data, &query_wq_lengths_fops);
+
+ QMAN_DBGFS_ENTRY_ROOT("query_cgr", S_IRUGO | S_IWUGO,
+ &query_cgr_data, &query_cgr_fops);
+
+ QMAN_DBGFS_ENTRY_ROOT("query_congestion", S_IRUGO,
+ NULL, &query_congestion_fops);
+
+ QMAN_DBGFS_ENTRY_ROOT("testwrite_cgr", S_IRUGO,
+ NULL, &testwrite_cgr_fops);
+
+ QMAN_DBGFS_ENTRY_ROOT("testwrite_cgr_cgrid", S_IRUGO | S_IWUGO,
+ NULL, &teswrite_cgr_cgrid_fops);
+
+ QMAN_DBGFS_ENTRY_ROOT("testwrite_cgr_ibcnt", S_IRUGO | S_IWUGO,
+ NULL, &teswrite_cgr_ibcnt_fops);
+
+ /* Create files with fqd_root as parent */
+
+ QMAN_DBGFS_ENTRY_FQDROOT("stateoos", S_IRUGO,
+ (void *)&fqd_states[QM_MCR_NP_STATE_OOS], &qman_fqd_state_fops);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("state_retired", S_IRUGO,
+ (void *)&fqd_states[QM_MCR_NP_STATE_RETIRED],
+ &qman_fqd_state_fops);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("state_tentatively_sched", S_IRUGO,
+ (void *)&fqd_states[QM_MCR_NP_STATE_TEN_SCHED],
+ &qman_fqd_state_fops);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("state_truly_sched", S_IRUGO,
+ (void *)&fqd_states[QM_MCR_NP_STATE_TRU_SCHED],
+ &qman_fqd_state_fops);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("state_parked", S_IRUGO,
+ (void *)&fqd_states[QM_MCR_NP_STATE_PARKED],
+ &qman_fqd_state_fops);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("state_active", S_IRUGO,
+ (void *)&fqd_states[QM_MCR_NP_STATE_ACTIVE],
+ &qman_fqd_state_fops);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("cge_enable", 17);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("cge_disable", 16);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("tde_enable", 15);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("tde_disable", 14);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("orp_enable", 13);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("orp_disable", 12);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("ctx_a_stashing_enable", 11);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("ctx_a_stashing_disable", 10);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("cpc_enable", 9);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("cpc_disable", 8);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("sfdr_enable", 7);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("sfdr_disable", 6);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("avoid_blocking_enable", 5);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("avoid_blocking_disable", 4);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("hold_active_enable", 3);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("hold_active_disable", 2);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("prefer_in_cache_enable", 1);
+
+ QMAN_DBGFS_ENTRY_FQDSTATE("prefer_in_cache_disable", 0);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("summary", S_IRUGO,
+ NULL, &qman_fqd_summary_fops);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("wq", S_IRUGO | S_IWUGO,
+ NULL, &qman_fqd_dest_wq_fops);
+
+ QMAN_DBGFS_ENTRY_FQDROOT("cred", S_IRUGO,
+ NULL, &qman_fqd_cred_fops);
+
+ return 0;
+
+_return:
+ debugfs_remove_recursive(dfs_root);
+
+ return ret;
+}
+
+static void __exit qman_debugfs_exit(void)
+{
+ debugfs_remove_recursive(dfs_root);
+}
+
+module_init(qman_debugfs_init);
+module_exit(qman_debugfs_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/soc/fsl/qbman/qman_api.c b/drivers/soc/fsl/qbman/qman_api.c
index 8e2a9b7..d4f9be0 100644
--- a/drivers/soc/fsl/qbman/qman_api.c
+++ b/drivers/soc/fsl/qbman/qman_api.c
@@ -1225,9 +1225,7 @@ void qman_dca(struct qm_dqrr_entry *dq, int park_request)
}
EXPORT_SYMBOL(qman_dca);
-/*******************/
/* Frame queue API */
-/*******************/
static const char *mcr_result_str(u8 result)
{
@@ -1788,6 +1786,37 @@ int qman_query_wq(u8 query_dedicated, struct qm_mcr_querywq *wq)
}
EXPORT_SYMBOL(qman_query_wq);
+int qman_testwrite_cgr(struct qman_cgr *cgr, u64 i_bcnt,
+ struct qm_mcr_cgrtestwrite *result)
+{
+ struct qm_mc_command *mcc;
+ struct qm_mc_result *mcr;
+ struct qman_portal *p = get_affine_portal();
+ unsigned long irqflags __maybe_unused;
+ u8 res;
+
+ PORTAL_IRQ_LOCK(p, irqflags);
+ mcc = qm_mc_start(&p->p);
+ mcc->cgrtestwrite.cgid = cgr->cgrid;
+ mcc->cgrtestwrite.i_bcnt_hi = (u8)(i_bcnt >> 32);
+ mcc->cgrtestwrite.i_bcnt_lo = (u32)i_bcnt;
+ qm_mc_commit(&p->p, QM_MCC_VERB_CGRTESTWRITE);
+ while (!(mcr = qm_mc_result(&p->p)))
+ cpu_relax();
+ DPA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCC_VERB_CGRTESTWRITE);
+ res = mcr->result;
+ if (res == QM_MCR_RESULT_OK)
+ *result = mcr->cgrtestwrite;
+ PORTAL_IRQ_UNLOCK(p, irqflags);
+ put_affine_portal();
+ if (res != QM_MCR_RESULT_OK) {
+ pr_err("CGR TEST WRITE failed: %s\n", mcr_result_str(res));
+ return -EIO;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(qman_testwrite_cgr);
+
int qman_query_cgr(struct qman_cgr *cgr, struct qm_mcr_querycgr *cgrd)
{
struct qm_mc_command *mcc;
@@ -1816,6 +1845,33 @@ int qman_query_cgr(struct qman_cgr *cgr, struct qm_mcr_querycgr *cgrd)
}
EXPORT_SYMBOL(qman_query_cgr);
+int qman_query_congestion(struct qm_mcr_querycongestion *congestion)
+{
+ struct qm_mc_result *mcr;
+ struct qman_portal *p = get_affine_portal();
+ unsigned long irqflags __maybe_unused;
+ u8 res;
+
+ PORTAL_IRQ_LOCK(p, irqflags);
+ qm_mc_start(&p->p);
+ qm_mc_commit(&p->p, QM_MCC_VERB_QUERYCONGESTION);
+ while (!(mcr = qm_mc_result(&p->p)))
+ cpu_relax();
+ DPA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
+ QM_MCC_VERB_QUERYCONGESTION);
+ res = mcr->result;
+ if (res == QM_MCR_RESULT_OK)
+ *congestion = mcr->querycongestion;
+ PORTAL_IRQ_UNLOCK(p, irqflags);
+ put_affine_portal();
+ if (res != QM_MCR_RESULT_OK) {
+ pr_err("QUERY_CONGESTION failed: %s\n", mcr_result_str(res));
+ return -EIO;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(qman_query_congestion);
+
/* internal function used as a wait_event() expression */
static int set_p_vdqcr(struct qman_portal *p, struct qman_fq *fq, u32 vdqcr)
{
diff --git a/drivers/soc/fsl/qbman/qman_priv.h b/drivers/soc/fsl/qbman/qman_priv.h
index 03c923f..6463b18 100644
--- a/drivers/soc/fsl/qbman/qman_priv.h
+++ b/drivers/soc/fsl/qbman/qman_priv.h
@@ -156,6 +156,14 @@ struct qman_portal *qman_create_affine_slave(struct qman_portal *redirect,
const struct qm_portal_config *qman_destroy_affine_portal(void);
void qman_destroy_portal(struct qman_portal *qm);
+/* This CGR feature is supported by h/w and required by unit-tests and the
+ * debugfs hooks, so is implemented in the driver. However it allows an explicit
+ * corruption of h/w fields by s/w that are usually incorruptible (because the
+ * counters are usually maintained entirely within h/w). As such, we declare
+ * this API internally. */
+int qman_testwrite_cgr(struct qman_cgr *cgr, u64 i_bcnt,
+ struct qm_mcr_cgrtestwrite *result);
+
#ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
/* If the fq object pointer is greater than the size of context_b field,
* than a lookup table is required. */
--
1.7.9.5
--
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