dataipa: IPA HW TTL update offload - debugfs

Count TTL HW updates and add to debugfs status and stats logging.

Change-Id: I72cf48a2aa6cc6fcee0c709d1366920b5430576f
Signed-off-by: Eliad Ben Yishay <quic_ebenyish@quicinc.com>

drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c

@@ -1,6 +1,40 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
+ *
+ * Changes from Qualcomm Innovation Center are provided under the following license:
+ *
+ * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted (subject to the limitations in the
+ * disclaimer below) 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 Qualcomm Innovation Center, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
+ * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
+ * HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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
  */
 
 #ifdef CONFIG_DEBUG_FS
@@ -1075,6 +1109,7 @@ static ssize_t ipa3_read_rt(struct file *file, char __user *ubuf, size_t count,
 
 	mutex_lock(&ipa3_ctx->lock);
 
+	pr_err("==== Routing Tables Start ====\n");
 	if (ipa3_ctx->rt_tbl_hash_lcl[ip])
 		pr_err("Hashable table resides on local memory\n");
 	else
@@ -1129,11 +1164,14 @@ static ssize_t ipa3_read_rt(struct file *file, char __user *ubuf, size_t count,
 			if (ipa3_ctx->ipa_hw_type >= IPA_HW_v5_0)
 				pr_err("close_aggr_irq_mod: %u\n",
 					entry->rule.close_aggr_irq_mod);
+			if (ipa3_ctx->ipa_hw_type >= IPA_HW_v5_5)
+				pr_err("ttl_update: %u\n", entry->rule.ttl_update);
 
 			ipa3_attrib_dump(&entry->rule.attrib, ip);
 			i++;
 		}
 	}
+	pr_err("==== Routing Tables End ====\n");
 	mutex_unlock(&ipa3_ctx->lock);
 
 	return 0;
@@ -1310,6 +1348,7 @@ static ssize_t ipa3_read_flt(struct file *file, char __user *ubuf, size_t count,
 
 	mutex_lock(&ipa3_ctx->lock);
 
+	pr_err("==== Filtering Tables Start ====\n");
 	if (ipa3_ctx->flt_tbl_hash_lcl[ip])
 		pr_err("Hashable table resides on local memory\n");
 	else
@@ -1377,9 +1416,12 @@ static ssize_t ipa3_read_flt(struct file *file, char __user *ubuf, size_t count,
 				ipa3_attrib_dump(
 					&entry->rule.attrib, ip);
 			i++;
+			if (ipa3_ctx->ipa_hw_type >= IPA_HW_v5_5)
+				pr_err("ttl_update %u ", entry->rule.ttl_update);
 		}
 	}
 bail:
+	pr_err("==== Filtering Tables End ====\n");
 	mutex_unlock(&ipa3_ctx->lock);
 
 	return res;
@@ -1538,7 +1580,8 @@ static ssize_t ipa3_read_stats(struct file *file, char __user *ubuf,
 		"num_buff_below_thresh_for_def_pipe_notified=%u\n"
 		"num_buff_above_thresh_for_coal_pipe_notified=%u\n"
 		"num_buff_below_thresh_for_coal_pipe_notified=%u\n"
-		"pipe_setup_fail_cnt=%u\n",
+		"pipe_setup_fail_cnt=%u\n"
+		"ttl_count=%u\n",
 		ipa3_ctx->stats.tx_sw_pkts,
 		ipa3_ctx->stats.tx_hw_pkts,
 		ipa3_ctx->stats.tx_non_linear,
@@ -1565,7 +1608,8 @@ static ssize_t ipa3_read_stats(struct file *file, char __user *ubuf,
 		atomic_read(&ipa3_ctx->stats.num_buff_below_thresh_for_def_pipe_notified),
 		atomic_read(&ipa3_ctx->stats.num_buff_above_thresh_for_coal_pipe_notified),
 		atomic_read(&ipa3_ctx->stats.num_buff_below_thresh_for_coal_pipe_notified),
-		ipa3_ctx->stats.pipe_setup_fail_cnt
+		ipa3_ctx->stats.pipe_setup_fail_cnt,
+		ipa3_ctx->stats.ttl_cnt
 		);
 	cnt += nbytes;
 
@@ -2409,7 +2453,7 @@ static ssize_t ipa3_read_nat4(
 
 	bool any_table_active = (nm_ptr->ddr_in_use || nm_ptr->sram_in_use);
 
-	pr_err("IPA3 NAT stats\n");
+	pr_err("==== NAT Tables Start ====\n");
 
 	if (!dev->is_dev_init) {
 		pr_err("NAT hasn't been initialized or not supported\n");
@@ -2496,6 +2540,7 @@ static ssize_t ipa3_read_nat4(
 	}
 
 bail:
+	pr_err("==== NAT Tables End ====\n");
 	mutex_unlock(&dev->lock);
 
 ret:
@@ -2932,6 +2977,7 @@ static void ipa_dump_status(struct ipahal_pkt_status *status)
 	IPA_DUMP_STATUS_FIELD(hdr_offset);
 	IPA_DUMP_STATUS_FIELD(frag_hit);
 	IPA_DUMP_STATUS_FIELD(frag_rule);
+	IPA_DUMP_STATUS_FIELD(ttl_dec);
 }
 
 static ssize_t ipa_status_stats_read(struct file *file, char __user *ubuf,

drivers/platform/msm/ipa/ipa_v3/ipa_dp.c

@@ -2,6 +2,40 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
+ *
+ * Changes from Qualcomm Innovation Center are provided under the following license:
+ *
+ * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted (subject to the limitations in the
+ * disclaimer below) 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 Qualcomm Innovation Center, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
+ * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
+ * HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 <linux/delay.h>
@@ -3905,9 +3939,9 @@ static int ipa3_wan_rx_pyld_hdlr(struct sk_buff *skb,
 		}
 		ipahal_pkt_status_parse(skb->data, &status);
 		skb_data = skb->data;
-		IPADBG_LOW("STATUS opcode=%d src=%d dst=%d len=%d\n",
+		IPADBG_LOW("STATUS opcode=%d src=%d dst=%d len=%d ttl_dec=%d\n",
-				status.status_opcode, status.endp_src_idx,
+			status.status_opcode, status.endp_src_idx, status.endp_dest_idx,
-				status.endp_dest_idx, status.pkt_len);
+			status.pkt_len, status.ttl_dec);
 
 		if (sys->status_stat) {
 			sys->status_stat->status[sys->status_stat->curr] =
@@ -3930,6 +3964,8 @@ static int ipa3_wan_rx_pyld_hdlr(struct sk_buff *skb,
 		}
 
 		IPA_STATS_INC_CNT(ipa3_ctx->stats.rx_pkts);
+		if (status.ttl_dec)
+			IPA_STATS_INC_CNT(ipa3_ctx->stats.ttl_cnt);
 		if (status.endp_dest_idx >= ipa3_ctx->ipa_num_pipes ||
 			status.endp_src_idx >= ipa3_ctx->ipa_num_pipes) {
 			IPAERR("status fields invalid\n");

drivers/platform/msm/ipa/ipa_v3/ipa_i.h

@@ -1,7 +1,40 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
+ *
+ * Changes from Qualcomm Innovation Center are provided under the following license:
+ *
  * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted (subject to the limitations in the
+ * disclaimer below) 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 Qualcomm Innovation Center, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
+ * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
+ * HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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
  */
 
 #ifndef _IPA3_I_H_
@@ -1579,6 +1612,7 @@ struct ipa3_stats {
 	u64 num_sort_tasklet_sched[3];
 	u64 num_of_times_wq_reschd;
 	u64 page_recycle_cnt_in_tasklet;
+	u32 ttl_cnt;
 };
 
 /* offset for each stats */