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* [PATCH net-next 07/12] net: hns3: fix a wrong checking in the hclge_tx_buffer_calc()
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, Huazhong Tan, Peng Li
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

Only the TC is enabled, we need to check whether the buffer is enough,
otherwise it may lead to a wrong -ENOMEM case.

Fixes: 9ffe79a9c2ee ("net: hns3: Support for dynamically assigning tx buffer to TC")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index a037dc5e36b7..5f6fc23fab5d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1506,13 +1506,14 @@ static int hclge_tx_buffer_calc(struct hclge_dev *hdev,
 	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
 		struct hclge_priv_buf *priv = &buf_alloc->priv_buf[i];
 
-		if (total_size < hdev->tx_buf_size)
-			return -ENOMEM;
+		if (hdev->hw_tc_map & BIT(i)) {
+			if (total_size < hdev->tx_buf_size)
+				return -ENOMEM;
 
-		if (hdev->hw_tc_map & BIT(i))
 			priv->tx_buf_size = hdev->tx_buf_size;
-		else
+		} else {
 			priv->tx_buf_size = 0;
+		}
 
 		total_size -= priv->tx_buf_size;
 	}
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 08/12] net: hns3: fix the problem that the supported port is empty
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, liuzhongzhu, Peng Li, Huazhong Tan
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

From: liuzhongzhu <liuzhongzhu@huawei.com>

Run ethtool ethx when displaying device information in VF,
the supported port and link mode items will be empty.

This patch fixes it.

Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 .../net/ethernet/hisilicon/hns3/hclge_mbx.h   |  4 ++-
 .../hisilicon/hns3/hns3pf/hclge_mbx.c         | 31 +++++++++++++++++-
 .../hisilicon/hns3/hns3vf/hclgevf_main.c      | 32 +++++++++++++++++--
 .../hisilicon/hns3/hns3vf/hclgevf_main.h      |  2 ++
 .../hisilicon/hns3/hns3vf/hclgevf_mbx.c       | 12 +++++++
 5 files changed, 77 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
index 691d12174902..53089cd980d9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
@@ -40,6 +40,8 @@ enum HCLGE_MBX_OPCODE {
 	HCLGE_MBX_SET_ALIVE,		/* (VF -> PF) set alive state */
 	HCLGE_MBX_SET_MTU,		/* (VF -> PF) set mtu */
 	HCLGE_MBX_GET_QID_IN_PF,	/* (VF -> PF) get queue id in pf */
+	HCLGE_MBX_LINK_STAT_MODE,	/* (PF -> VF) link mode has changed */
+	HCLGE_MBX_GET_LINK_MODE,	/* (VF -> PF) get the link mode of pf */
 };
 
 /* below are per-VF mac-vlan subcodes */
@@ -60,7 +62,7 @@ enum hclge_mbx_vlan_cfg_subcode {
 };
 
 #define HCLGE_MBX_MAX_MSG_SIZE	16
-#define HCLGE_MBX_MAX_RESP_DATA_SIZE	8
+#define HCLGE_MBX_MAX_RESP_DATA_SIZE	16
 #define HCLGE_MBX_RING_MAP_BASIC_MSG_NUM	3
 #define HCLGE_MBX_RING_NODE_VARIABLE_NUM	3
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 6afb0a4b73f7..7e4a104582d6 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -355,16 +355,19 @@ static int hclge_get_link_info(struct hclge_vport *vport,
 {
 	struct hclge_dev *hdev = vport->back;
 	u16 link_status;
-	u8 msg_data[8];
+	u8 msg_data[10];
+	u16 media_type;
 	u8 dest_vfid;
 	u16 duplex;
 
 	/* mac.link can only be 0 or 1 */
 	link_status = (u16)hdev->hw.mac.link;
 	duplex = hdev->hw.mac.duplex;
+	media_type = hdev->hw.mac.media_type;
 	memcpy(&msg_data[0], &link_status, sizeof(u16));
 	memcpy(&msg_data[2], &hdev->hw.mac.speed, sizeof(u32));
 	memcpy(&msg_data[6], &duplex, sizeof(u16));
+	memcpy(&msg_data[8], &media_type, sizeof(u16));
 	dest_vfid = mbx_req->mbx_src_vfid;
 
 	/* send this requested info to VF */
@@ -372,6 +375,29 @@ static int hclge_get_link_info(struct hclge_vport *vport,
 				  HCLGE_MBX_LINK_STAT_CHANGE, dest_vfid);
 }
 
+static void hclge_get_link_mode(struct hclge_vport *vport,
+				struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+{
+#define HCLGE_SUPPORTED   1
+	struct hclge_dev *hdev = vport->back;
+	unsigned long advertising;
+	unsigned long supported;
+	unsigned long send_data;
+	u8 msg_data[10];
+	u8 dest_vfid;
+
+	advertising = hdev->hw.mac.advertising[0];
+	supported = hdev->hw.mac.supported[0];
+	dest_vfid = mbx_req->mbx_src_vfid;
+	msg_data[0] = mbx_req->msg[2];
+
+	send_data = msg_data[0] == HCLGE_SUPPORTED ? supported : advertising;
+
+	memcpy(&msg_data[2], &send_data, sizeof(unsigned long));
+	hclge_send_mbx_msg(vport, msg_data, sizeof(msg_data),
+			   HCLGE_MBX_LINK_STAT_MODE, dest_vfid);
+}
+
 static void hclge_mbx_reset_vf_queue(struct hclge_vport *vport,
 				     struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 {
@@ -556,6 +582,9 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 					"PF failed(%d) to get qid for VF\n",
 					ret);
 			break;
+		case HCLGE_MBX_GET_LINK_MODE:
+			hclge_get_link_mode(vport, req);
+			break;
 		default:
 			dev_err(&hdev->pdev->dev,
 				"un-supported mailbox message, code = %d\n",
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index bc2f29e67280..4a897cfb573b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -381,6 +381,21 @@ void hclgevf_update_link_status(struct hclgevf_dev *hdev, int link_state)
 	}
 }
 
+void hclgevf_update_link_mode(struct hclgevf_dev *hdev)
+{
+#define HCLGEVF_ADVERTISING 0
+#define HCLGEVF_SUPPORTED   1
+	u8 send_msg;
+	u8 resp_msg;
+
+	send_msg = HCLGEVF_ADVERTISING;
+	hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_LINK_MODE, 0, &send_msg,
+			     sizeof(u8), false, &resp_msg, sizeof(u8));
+	send_msg = HCLGEVF_SUPPORTED;
+	hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_LINK_MODE, 0, &send_msg,
+			     sizeof(u8), false, &resp_msg, sizeof(u8));
+}
+
 static int hclgevf_set_handle_info(struct hclgevf_dev *hdev)
 {
 	struct hnae3_handle *nic = &hdev->nic;
@@ -1646,6 +1661,8 @@ static void hclgevf_service_task(struct work_struct *work)
 	 */
 	hclgevf_request_link_info(hdev);
 
+	hclgevf_update_link_mode(hdev);
+
 	hclgevf_deferred_task_schedule(hdev);
 
 	clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state);
@@ -1726,8 +1743,6 @@ static int hclgevf_configure(struct hclgevf_dev *hdev)
 {
 	int ret;
 
-	hdev->hw.mac.media_type = HNAE3_MEDIA_TYPE_NONE;
-
 	/* get queue configuration from PF */
 	ret = hclgevf_get_queue_info(hdev);
 	if (ret)
@@ -1880,6 +1895,8 @@ static int hclgevf_ae_start(struct hnae3_handle *handle)
 
 	hclgevf_request_link_info(hdev);
 
+	hclgevf_update_link_mode(hdev);
+
 	clear_bit(HCLGEVF_STATE_DOWN, &hdev->state);
 
 	return 0;
@@ -2586,6 +2603,16 @@ static unsigned long hclgevf_ae_dev_reset_cnt(struct hnae3_handle *handle)
 	return hdev->reset_count;
 }
 
+static void hclgevf_get_link_mode(struct hnae3_handle *handle,
+				  unsigned long *supported,
+				  unsigned long *advertising)
+{
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+
+	*supported = hdev->hw.mac.supported;
+	*advertising = hdev->hw.mac.advertising;
+}
+
 #define MAX_SEPARATE_NUM	4
 #define SEPARATOR_VALUE		0xFFFFFFFF
 #define REG_NUM_PER_LINE	4
@@ -2704,6 +2731,7 @@ static const struct hnae3_ae_ops hclgevf_ops = {
 	.set_mtu = hclgevf_set_mtu,
 	.get_global_queue_id = hclgevf_get_qid_global,
 	.set_timer_task = hclgevf_set_timer_task,
+	.get_link_mode = hclgevf_get_link_mode,
 };
 
 static struct hnae3_ae_algo ae_algovf = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index 787bc06944e5..eba1118a766d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -145,6 +145,8 @@ struct hclgevf_mac {
 	int link;
 	u8 duplex;
 	u32 speed;
+	u64 supported;
+	u64 advertising;
 };
 
 struct hclgevf_hw {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
index 84653f58b2d1..7dc3c9f79169 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
@@ -197,6 +197,7 @@ void hclgevf_mbx_handler(struct hclgevf_dev *hdev)
 			break;
 		case HCLGE_MBX_LINK_STAT_CHANGE:
 		case HCLGE_MBX_ASSERTING_RESET:
+		case HCLGE_MBX_LINK_STAT_MODE:
 			/* set this mbx event as pending. This is required as we
 			 * might loose interrupt event when mbx task is busy
 			 * handling. This shall be cleared when mbx task just
@@ -247,6 +248,7 @@ void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
 	u8 duplex;
 	u32 speed;
 	u32 tail;
+	u8 idx;
 
 	/* we can safely clear it now as we are at start of the async message
 	 * processing
@@ -270,12 +272,22 @@ void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
 			link_status = le16_to_cpu(msg_q[1]);
 			memcpy(&speed, &msg_q[2], sizeof(speed));
 			duplex = (u8)le16_to_cpu(msg_q[4]);
+			hdev->hw.mac.media_type = (u8)le16_to_cpu(msg_q[5]);
 
 			/* update upper layer with new link link status */
 			hclgevf_update_link_status(hdev, link_status);
 			hclgevf_update_speed_duplex(hdev, speed, duplex);
 
 			break;
+		case HCLGE_MBX_LINK_STAT_MODE:
+			idx = (u8)le16_to_cpu(msg_q[1]);
+			if (idx)
+				memcpy(&hdev->hw.mac.supported, &msg_q[2],
+				       sizeof(unsigned long));
+			else
+				memcpy(&hdev->hw.mac.advertising, &msg_q[2],
+				       sizeof(unsigned long));
+			break;
 		case HCLGE_MBX_ASSERTING_RESET:
 			/* PF has asserted reset hence VF should go in pending
 			 * state and poll for the hardware reset status till it
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 11/12] net: hns3: modify the upper limit judgment condition
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, liuzhongzhu, Peng Li, Huazhong Tan
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

From: liuzhongzhu <liuzhongzhu@huawei.com>

In order to prevent the variable anomaly from being larger than desc_num,
the upper limit judgment condition becomes >=.

Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
index 57c50b947857..1dddfcba41a9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
@@ -197,7 +197,7 @@ static int hclge_cmd_check_retval(struct hclge_hw *hw, struct hclge_desc *desc,
 	for (handle = 0; handle < num; handle++) {
 		desc[handle] = hw->cmq.csq.desc[ntc];
 		ntc++;
-		if (ntc == hw->cmq.csq.desc_num)
+		if (ntc >= hw->cmq.csq.desc_num)
 			ntc = 0;
 	}
 	if (likely(!hclge_is_special_opcode(opcode)))
@@ -254,7 +254,7 @@ int hclge_cmd_send(struct hclge_hw *hw, struct hclge_desc *desc, int num)
 		desc_to_use = &hw->cmq.csq.desc[hw->cmq.csq.next_to_use];
 		*desc_to_use = desc[handle];
 		(hw->cmq.csq.next_to_use)++;
-		if (hw->cmq.csq.next_to_use == hw->cmq.csq.desc_num)
+		if (hw->cmq.csq.next_to_use >= hw->cmq.csq.desc_num)
 			hw->cmq.csq.next_to_use = 0;
 		handle++;
 	}
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 06/12] net: hns3: move some set_bit statement into hclge_prepare_mac_addr
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, Weihang Li, Peng Li, Huazhong Tan
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

From: Weihang Li <liweihang@hisilicon.com>

This patch does not change the code logic. There are some same
set_bit statements called by add/rm_uc/mc_addr_common, and move
this statements into hclge_prepare_mac_addr to reduce duplicate
code.

Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 24 +++++++++----------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index be7d82502f5f..a037dc5e36b7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -5586,13 +5586,19 @@ static bool hclge_is_all_function_id_zero(struct hclge_desc *desc)
 }
 
 static void hclge_prepare_mac_addr(struct hclge_mac_vlan_tbl_entry_cmd *new_req,
-				   const u8 *addr)
+				   const u8 *addr, bool is_mc)
 {
 	const unsigned char *mac_addr = addr;
 	u32 high_val = mac_addr[2] << 16 | (mac_addr[3] << 24) |
 		       (mac_addr[0]) | (mac_addr[1] << 8);
 	u32 low_val  = mac_addr[4] | (mac_addr[5] << 8);
 
+	hnae3_set_bit(new_req->flags, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
+	if (is_mc) {
+		hnae3_set_bit(new_req->entry_type, HCLGE_MAC_VLAN_BIT1_EN_B, 1);
+		hnae3_set_bit(new_req->mc_mac_en, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
+	}
+
 	new_req->mac_addr_hi32 = cpu_to_le32(high_val);
 	new_req->mac_addr_lo16 = cpu_to_le16(low_val & 0xffff);
 }
@@ -5863,14 +5869,13 @@ int hclge_add_uc_addr_common(struct hclge_vport *vport,
 	}
 
 	memset(&req, 0, sizeof(req));
-	hnae3_set_bit(req.flags, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
 
 	hnae3_set_field(egress_port, HCLGE_MAC_EPORT_VFID_M,
 			HCLGE_MAC_EPORT_VFID_S, vport->vport_id);
 
 	req.egress_port = cpu_to_le16(egress_port);
 
-	hclge_prepare_mac_addr(&req, addr);
+	hclge_prepare_mac_addr(&req, addr, false);
 
 	/* Lookup the mac address in the mac_vlan table, and add
 	 * it if the entry is inexistent. Repeated unicast entry
@@ -5928,9 +5933,8 @@ int hclge_rm_uc_addr_common(struct hclge_vport *vport,
 	}
 
 	memset(&req, 0, sizeof(req));
-	hnae3_set_bit(req.flags, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
 	hnae3_set_bit(req.entry_type, HCLGE_MAC_VLAN_BIT0_EN_B, 0);
-	hclge_prepare_mac_addr(&req, addr);
+	hclge_prepare_mac_addr(&req, addr, false);
 	ret = hclge_remove_mac_vlan_tbl(vport, &req);
 	if (!ret)
 		hclge_update_umv_space(vport, true);
@@ -5962,11 +5966,8 @@ int hclge_add_mc_addr_common(struct hclge_vport *vport,
 		return -EINVAL;
 	}
 	memset(&req, 0, sizeof(req));
-	hnae3_set_bit(req.flags, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
 	hnae3_set_bit(req.entry_type, HCLGE_MAC_VLAN_BIT0_EN_B, 0);
-	hnae3_set_bit(req.entry_type, HCLGE_MAC_VLAN_BIT1_EN_B, 1);
-	hnae3_set_bit(req.mc_mac_en, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
-	hclge_prepare_mac_addr(&req, addr);
+	hclge_prepare_mac_addr(&req, addr, true);
 	status = hclge_lookup_mac_vlan_tbl(vport, &req, desc, true);
 	if (!status) {
 		/* This mac addr exist, update VFID for it */
@@ -6012,11 +6013,8 @@ int hclge_rm_mc_addr_common(struct hclge_vport *vport,
 	}
 
 	memset(&req, 0, sizeof(req));
-	hnae3_set_bit(req.flags, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
 	hnae3_set_bit(req.entry_type, HCLGE_MAC_VLAN_BIT0_EN_B, 0);
-	hnae3_set_bit(req.entry_type, HCLGE_MAC_VLAN_BIT1_EN_B, 1);
-	hnae3_set_bit(req.mc_mac_en, HCLGE_MAC_VLAN_BIT0_EN_B, 1);
-	hclge_prepare_mac_addr(&req, addr);
+	hclge_prepare_mac_addr(&req, addr, true);
 	status = hclge_lookup_mac_vlan_tbl(vport, &req, desc, true);
 	if (!status) {
 		/* This mac addr exist, remove this handle's VFID for it */
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 05/12] net: hns3: add hclge_cmd_check_retval() to parse comman's return value
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, Weihang Li, Peng Li, Huazhong Tan
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

From: Weihang Li <liweihang@hisilicon.com>

For simplifying the code, this patch adds hclge_cmd_check_retval() to
check the return value of the command.

Also, according the IMP's description, when there are several descriptors
in a command, then the IMP will save the return value on the last
description, so hclge_cmd_check_retval() just check the last one for this
case.

Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_cmd.c         | 60 ++++++++++---------
 1 file changed, 33 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
index 81dbe1b6abb0..57c50b947857 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
@@ -186,6 +186,38 @@ static bool hclge_is_special_opcode(u16 opcode)
 	return false;
 }
 
+static int hclge_cmd_check_retval(struct hclge_hw *hw, struct hclge_desc *desc,
+				  int num, int ntc)
+{
+	u16 opcode, desc_ret;
+	int handle;
+	int retval;
+
+	opcode = le16_to_cpu(desc[0].opcode);
+	for (handle = 0; handle < num; handle++) {
+		desc[handle] = hw->cmq.csq.desc[ntc];
+		ntc++;
+		if (ntc == hw->cmq.csq.desc_num)
+			ntc = 0;
+	}
+	if (likely(!hclge_is_special_opcode(opcode)))
+		desc_ret = le16_to_cpu(desc[num - 1].retval);
+	else
+		desc_ret = le16_to_cpu(desc[0].retval);
+
+	if (desc_ret == HCLGE_CMD_EXEC_SUCCESS)
+		retval = 0;
+	else if (desc_ret == HCLGE_CMD_NO_AUTH)
+		retval = -EPERM;
+	else if (desc_ret == HCLGE_CMD_NOT_SUPPORTED)
+		retval = -EOPNOTSUPP;
+	else
+		retval = -EIO;
+	hw->cmq.last_status = desc_ret;
+
+	return retval;
+}
+
 /**
  * hclge_cmd_send - send command to command queue
  * @hw: pointer to the hw struct
@@ -203,7 +235,6 @@ int hclge_cmd_send(struct hclge_hw *hw, struct hclge_desc *desc, int num)
 	u32 timeout = 0;
 	int handle = 0;
 	int retval = 0;
-	u16 opcode, desc_ret;
 	int ntc;
 
 	spin_lock_bh(&hw->cmq.csq.lock);
@@ -219,7 +250,6 @@ int hclge_cmd_send(struct hclge_hw *hw, struct hclge_desc *desc, int num)
 	 * which will be use for hardware to write back
 	 */
 	ntc = hw->cmq.csq.next_to_use;
-	opcode = le16_to_cpu(desc[0].opcode);
 	while (handle < num) {
 		desc_to_use = &hw->cmq.csq.desc[hw->cmq.csq.next_to_use];
 		*desc_to_use = desc[handle];
@@ -250,31 +280,7 @@ int hclge_cmd_send(struct hclge_hw *hw, struct hclge_desc *desc, int num)
 	if (!complete) {
 		retval = -EAGAIN;
 	} else {
-		handle = 0;
-		while (handle < num) {
-			/* Get the result of hardware write back */
-			desc_to_use = &hw->cmq.csq.desc[ntc];
-			desc[handle] = *desc_to_use;
-
-			if (likely(!hclge_is_special_opcode(opcode)))
-				desc_ret = le16_to_cpu(desc[handle].retval);
-			else
-				desc_ret = le16_to_cpu(desc[0].retval);
-
-			if (desc_ret == HCLGE_CMD_EXEC_SUCCESS)
-				retval = 0;
-			else if (desc_ret == HCLGE_CMD_NO_AUTH)
-				retval = -EPERM;
-			else if (desc_ret == HCLGE_CMD_NOT_SUPPORTED)
-				retval = -EOPNOTSUPP;
-			else
-				retval = -EIO;
-			hw->cmq.last_status = desc_ret;
-			ntc++;
-			handle++;
-			if (ntc == hw->cmq.csq.desc_num)
-				ntc = 0;
-		}
+		retval = hclge_cmd_check_retval(hw, desc, num, ntc);
 	}
 
 	/* Clean the command send queue */
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 04/12] net: hns3: code optimization for hclge_rx_buffer_calc
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, Yunsheng Lin, Peng Li, Huazhong Tan
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

From: Yunsheng Lin <linyunsheng@huawei.com>

There are four steps to calcuate the rx private buffer, each step
can be done in a function to avoid code duplication and aid code
readability.

This patch adds three separate functions do the job. Also, the
function name more or less make the comment redundant, so remove
some obvious comment.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 140 ++++++++----------
 1 file changed, 63 insertions(+), 77 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 9630bbce5932..be7d82502f5f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1520,66 +1520,15 @@ static int hclge_tx_buffer_calc(struct hclge_dev *hdev,
 	return 0;
 }
 
-/* hclge_rx_buffer_calc: calculate the rx private buffer size for all TCs
- * @hdev: pointer to struct hclge_dev
- * @buf_alloc: pointer to buffer calculation data
- * @return: 0: calculate sucessful, negative: fail
- */
-static int hclge_rx_buffer_calc(struct hclge_dev *hdev,
-				struct hclge_pkt_buf_alloc *buf_alloc)
+static bool hclge_rx_buf_calc_all(struct hclge_dev *hdev, bool max,
+				  struct hclge_pkt_buf_alloc *buf_alloc)
 {
-	u32 rx_all = hdev->pkt_buf_size, aligned_mps;
-	int no_pfc_priv_num, pfc_priv_num;
-	struct hclge_priv_buf *priv;
+	u32 rx_all = hdev->pkt_buf_size - hclge_get_tx_buff_alloced(buf_alloc);
+	u32 aligned_mps = round_up(hdev->mps, HCLGE_BUF_SIZE_UNIT);
 	int i;
 
-	aligned_mps = round_up(hdev->mps, HCLGE_BUF_SIZE_UNIT);
-	rx_all -= hclge_get_tx_buff_alloced(buf_alloc);
-
-	/* When DCB is not supported, rx private
-	 * buffer is not allocated.
-	 */
-	if (!hnae3_dev_dcb_supported(hdev)) {
-		if (!hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all))
-			return -ENOMEM;
-
-		return 0;
-	}
-
-	/* step 1, try to alloc private buffer for all enabled tc */
-	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
-		priv = &buf_alloc->priv_buf[i];
-		if (hdev->hw_tc_map & BIT(i)) {
-			priv->enable = 1;
-			if (hdev->tm_info.hw_pfc_map & BIT(i)) {
-				priv->wl.low = aligned_mps;
-				priv->wl.high =
-					roundup(priv->wl.low + aligned_mps,
-						HCLGE_BUF_SIZE_UNIT);
-				priv->buf_size = priv->wl.high +
-					hdev->dv_buf_size;
-			} else {
-				priv->wl.low = 0;
-				priv->wl.high = 2 * aligned_mps;
-				priv->buf_size = priv->wl.high +
-						hdev->dv_buf_size;
-			}
-		} else {
-			priv->enable = 0;
-			priv->wl.low = 0;
-			priv->wl.high = 0;
-			priv->buf_size = 0;
-		}
-	}
-
-	if (hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all))
-		return 0;
-
-	/* step 2, try to decrease the buffer size of
-	 * no pfc TC's private buffer
-	 */
 	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
-		priv = &buf_alloc->priv_buf[i];
+		struct hclge_priv_buf *priv = &buf_alloc->priv_buf[i];
 
 		priv->enable = 0;
 		priv->wl.low = 0;
@@ -1592,28 +1541,30 @@ static int hclge_rx_buffer_calc(struct hclge_dev *hdev,
 		priv->enable = 1;
 
 		if (hdev->tm_info.hw_pfc_map & BIT(i)) {
-			priv->wl.low = 256;
-			priv->wl.high = priv->wl.low + aligned_mps;
-			priv->buf_size = priv->wl.high + hdev->dv_buf_size;
+			priv->wl.low = max ? aligned_mps : 256;
+			priv->wl.high = roundup(priv->wl.low + aligned_mps,
+						HCLGE_BUF_SIZE_UNIT);
 		} else {
 			priv->wl.low = 0;
-			priv->wl.high = aligned_mps;
-			priv->buf_size = priv->wl.high + hdev->dv_buf_size;
+			priv->wl.high = max ? (aligned_mps * 2) : aligned_mps;
 		}
+
+		priv->buf_size = priv->wl.high + hdev->dv_buf_size;
 	}
 
-	if (hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all))
-		return 0;
+	return hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all);
+}
 
-	/* step 3, try to reduce the number of pfc disabled TCs,
-	 * which have private buffer
-	 */
-	/* get the total no pfc enable TC number, which have private buffer */
-	no_pfc_priv_num = hclge_get_no_pfc_priv_num(hdev, buf_alloc);
+static bool hclge_drop_nopfc_buf_till_fit(struct hclge_dev *hdev,
+					  struct hclge_pkt_buf_alloc *buf_alloc)
+{
+	u32 rx_all = hdev->pkt_buf_size - hclge_get_tx_buff_alloced(buf_alloc);
+	int no_pfc_priv_num = hclge_get_no_pfc_priv_num(hdev, buf_alloc);
+	int i;
 
 	/* let the last to be cleared first */
 	for (i = HCLGE_MAX_TC_NUM - 1; i >= 0; i--) {
-		priv = &buf_alloc->priv_buf[i];
+		struct hclge_priv_buf *priv = &buf_alloc->priv_buf[i];
 
 		if (hdev->hw_tc_map & BIT(i) &&
 		    !(hdev->tm_info.hw_pfc_map & BIT(i))) {
@@ -1630,17 +1581,19 @@ static int hclge_rx_buffer_calc(struct hclge_dev *hdev,
 			break;
 	}
 
-	if (hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all))
-		return 0;
+	return hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all);
+}
 
-	/* step 4, try to reduce the number of pfc enabled TCs
-	 * which have private buffer.
-	 */
-	pfc_priv_num = hclge_get_pfc_priv_num(hdev, buf_alloc);
+static bool hclge_drop_pfc_buf_till_fit(struct hclge_dev *hdev,
+					struct hclge_pkt_buf_alloc *buf_alloc)
+{
+	u32 rx_all = hdev->pkt_buf_size - hclge_get_tx_buff_alloced(buf_alloc);
+	int pfc_priv_num = hclge_get_pfc_priv_num(hdev, buf_alloc);
+	int i;
 
 	/* let the last to be cleared first */
 	for (i = HCLGE_MAX_TC_NUM - 1; i >= 0; i--) {
-		priv = &buf_alloc->priv_buf[i];
+		struct hclge_priv_buf *priv = &buf_alloc->priv_buf[i];
 
 		if (hdev->hw_tc_map & BIT(i) &&
 		    hdev->tm_info.hw_pfc_map & BIT(i)) {
@@ -1656,7 +1609,40 @@ static int hclge_rx_buffer_calc(struct hclge_dev *hdev,
 		    pfc_priv_num == 0)
 			break;
 	}
-	if (hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all))
+
+	return hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all);
+}
+
+/* hclge_rx_buffer_calc: calculate the rx private buffer size for all TCs
+ * @hdev: pointer to struct hclge_dev
+ * @buf_alloc: pointer to buffer calculation data
+ * @return: 0: calculate sucessful, negative: fail
+ */
+static int hclge_rx_buffer_calc(struct hclge_dev *hdev,
+				struct hclge_pkt_buf_alloc *buf_alloc)
+{
+	/* When DCB is not supported, rx private buffer is not allocated. */
+	if (!hnae3_dev_dcb_supported(hdev)) {
+		u32 rx_all = hdev->pkt_buf_size;
+
+		rx_all -= hclge_get_tx_buff_alloced(buf_alloc);
+		if (!hclge_is_rx_buf_ok(hdev, buf_alloc, rx_all))
+			return -ENOMEM;
+
+		return 0;
+	}
+
+	if (hclge_rx_buf_calc_all(hdev, true, buf_alloc))
+		return 0;
+
+	/* try to decrease the buffer size */
+	if (hclge_rx_buf_calc_all(hdev, false, buf_alloc))
+		return 0;
+
+	if (hclge_drop_nopfc_buf_till_fit(hdev, buf_alloc))
+		return 0;
+
+	if (hclge_drop_pfc_buf_till_fit(hdev, buf_alloc))
 		return 0;
 
 	return -ENOMEM;
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 01/12] net: hns3: fix a code style issue for hns3_update_new_int_gl()
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, Peng Li, Huazhong Tan
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

From: Peng Li <lipeng321@huawei.com>

Use the same code style for rx_group and tx_group in the
hns3_update_new_int_gl().

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index c546b874d659..1d3f167ee1e4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2880,7 +2880,7 @@ static void hns3_update_new_int_gl(struct hns3_enet_tqp_vector *tqp_vector)
 	}
 
 	if (tx_group->coal.gl_adapt_enable) {
-		tx_update = hns3_get_new_int_gl(&tqp_vector->tx_group);
+		tx_update = hns3_get_new_int_gl(tx_group);
 		if (tx_update)
 			hns3_set_vector_coalesce_tx_gl(tqp_vector,
 						       tx_group->coal.int_gl);
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 03/12] net: hns3: Modify parameter type from int to bool in set_gro_en
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, Yonglong Liu, Peng Li, Huazhong Tan
In-Reply-To: <20190202143937.8924-1-tanhuazhong@huawei.com>

From: Yonglong Liu <liuyonglong@huawei.com>

The second parameter to the hook function set_gro_en is always passed in
true/false, so modify it's type from int to bool.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h   |  2 +-
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 26 +++++++------------
 .../hisilicon/hns3/hns3pf/hclge_main.c        |  2 +-
 .../hisilicon/hns3/hns3vf/hclgevf_main.c      |  2 +-
 4 files changed, 12 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index e05b4926feb2..10f1cc2ba157 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -461,7 +461,7 @@ struct hnae3_ae_ops {
 	bool (*get_hw_reset_stat)(struct hnae3_handle *handle);
 	bool (*ae_dev_resetting)(struct hnae3_handle *handle);
 	unsigned long (*ae_dev_reset_cnt)(struct hnae3_handle *handle);
-	int (*set_gro_en)(struct hnae3_handle *handle, int enable);
+	int (*set_gro_en)(struct hnae3_handle *handle, bool enable);
 	u16 (*get_global_queue_id)(struct hnae3_handle *handle, u16 queue_id);
 	void (*set_timer_task)(struct hnae3_handle *handle, bool enable);
 	int (*mac_connect_phy)(struct hnae3_handle *handle);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index bc571b3d8ddc..db06d36d408f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1349,6 +1349,7 @@ static int hns3_nic_set_features(struct net_device *netdev,
 	netdev_features_t changed = netdev->features ^ features;
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hnae3_handle *h = priv->ae_handle;
+	bool enable;
 	int ret;
 
 	if (changed & (NETIF_F_TSO | NETIF_F_TSO6)) {
@@ -1359,38 +1360,29 @@ static int hns3_nic_set_features(struct net_device *netdev,
 	}
 
 	if (changed & (NETIF_F_GRO_HW) && h->ae_algo->ops->set_gro_en) {
-		if (features & NETIF_F_GRO_HW)
-			ret = h->ae_algo->ops->set_gro_en(h, true);
-		else
-			ret = h->ae_algo->ops->set_gro_en(h, false);
+		enable = !!(features & NETIF_F_GRO_HW);
+		ret = h->ae_algo->ops->set_gro_en(h, enable);
 		if (ret)
 			return ret;
 	}
 
 	if ((changed & NETIF_F_HW_VLAN_CTAG_FILTER) &&
 	    h->ae_algo->ops->enable_vlan_filter) {
-		if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
-			h->ae_algo->ops->enable_vlan_filter(h, true);
-		else
-			h->ae_algo->ops->enable_vlan_filter(h, false);
+		enable = !!(features & NETIF_F_HW_VLAN_CTAG_FILTER);
+		h->ae_algo->ops->enable_vlan_filter(h, enable);
 	}
 
 	if ((changed & NETIF_F_HW_VLAN_CTAG_RX) &&
 	    h->ae_algo->ops->enable_hw_strip_rxvtag) {
-		if (features & NETIF_F_HW_VLAN_CTAG_RX)
-			ret = h->ae_algo->ops->enable_hw_strip_rxvtag(h, true);
-		else
-			ret = h->ae_algo->ops->enable_hw_strip_rxvtag(h, false);
-
+		enable = !!(features & NETIF_F_HW_VLAN_CTAG_RX);
+		ret = h->ae_algo->ops->enable_hw_strip_rxvtag(h, enable);
 		if (ret)
 			return ret;
 	}
 
 	if ((changed & NETIF_F_NTUPLE) && h->ae_algo->ops->enable_fd) {
-		if (features & NETIF_F_NTUPLE)
-			h->ae_algo->ops->enable_fd(h, true);
-		else
-			h->ae_algo->ops->enable_fd(h, false);
+		enable = !!(features & NETIF_F_NTUPLE);
+		h->ae_algo->ops->enable_fd(h, enable);
 	}
 
 	netdev->features = features;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 52fc57284be8..9630bbce5932 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -7989,7 +7989,7 @@ static void hclge_get_link_mode(struct hnae3_handle *handle,
 	}
 }
 
-static int hclge_gro_en(struct hnae3_handle *handle, int enable)
+static int hclge_gro_en(struct hnae3_handle *handle, bool enable)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index b9cdbd5dd6cb..bc2f29e67280 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2550,7 +2550,7 @@ void hclgevf_update_speed_duplex(struct hclgevf_dev *hdev, u32 speed,
 	hdev->hw.mac.duplex = duplex;
 }
 
-static int hclgevf_gro_en(struct hnae3_handle *handle, int enable)
+static int hclgevf_gro_en(struct hnae3_handle *handle, bool enable)
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
 
-- 
2.20.1



^ permalink raw reply related

* [PATCH net-next 00/12] code optimizations & bugfixes for HNS3 driver
From: Huazhong Tan @ 2019-02-02 14:39 UTC (permalink / raw)
  To: davem
  Cc: netdev, linux-kernel, huangdaode, yisen.zhuang, salil.mehta,
	linuxarm, Huazhong Tan

This patchset includes bugfixes and code optimizations for the HNS3
ethernet controller driver

Huazhong Tan (1):
  net: hns3: fix a wrong checking in the hclge_tx_buffer_calc()

Jian Shen (1):
  net: hns3: don't allow user to change vlan filter state

Peng Li (2):
  net: hns3: fix a code style issue for hns3_update_new_int_gl()
  net: hns3: fix an issue for hns3_update_new_int_gl

Weihang Li (2):
  net: hns3: add hclge_cmd_check_retval() to parse comman's return value
  net: hns3: move some set_bit statement into hclge_prepare_mac_addr

Yonglong Liu (1):
  net: hns3: Modify parameter type from int to bool in set_gro_en

Yunsheng Lin (1):
  net: hns3: code optimization for hclge_rx_buffer_calc

liuzhongzhu (4):
  net: hns3: fix the problem that the supported port is empty
  net: hns3: optimize the maximum TC macro
  net: hns3: modify the upper limit judgment condition
  net: hns3: MAC table entry count function increases operation 0 value
    protection measures

 .../net/ethernet/hisilicon/hns3/hclge_mbx.h   |   4 +-
 drivers/net/ethernet/hisilicon/hns3/hnae3.h   |   2 +-
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   |  33 ++--
 .../hisilicon/hns3/hns3pf/hclge_cmd.c         |  62 +++---
 .../hisilicon/hns3/hns3pf/hclge_cmd.h         |   7 +-
 .../hisilicon/hns3/hns3pf/hclge_debugfs.c     |   4 +-
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 184 ++++++++----------
 .../hisilicon/hns3/hns3pf/hclge_mbx.c         |  31 ++-
 .../hisilicon/hns3/hns3vf/hclgevf_main.c      |  34 +++-
 .../hisilicon/hns3/hns3vf/hclgevf_main.h      |   2 +
 .../hisilicon/hns3/hns3vf/hclgevf_mbx.c       |  12 ++
 11 files changed, 216 insertions(+), 159 deletions(-)

-- 
2.20.1



^ permalink raw reply

* Re: [PATCH 02/12 net-next,v7] net/mlx5e: support for two independent packet edit actions
From: Tonghao Zhang @ 2019-02-02 15:09 UTC (permalink / raw)
  To: Pablo Neira Ayuso
  Cc: Linux Kernel Network Developers, David Miller, thomas.lendacky,
	f.fainelli, ariel.elior, michael.chan, santosh, madalin.bucur,
	yisen.zhuang, salil.mehta, jeffrey.t.kirsher, tariqt,
	Saeed Mahameed, jiri, idosch, jakub.kicinski, peppe.cavallaro,
	grygorii.strashko, andrew, vivien.didelot, alexandre.torgue,
	joabreu, linux-net-drivers, ganeshgr, Or Gerlitz, Manish.Chopra,
	marcelo.leitner, mkubecek, venkatkumar.duvvuru, julia.lawall,
	john.fastabend, netfilter-devel, cphealy
In-Reply-To: <20190202115054.4880-3-pablo@netfilter.org>

On Sat, Feb 2, 2019 at 8:11 PM Pablo Neira Ayuso <pablo@netfilter.org> wrote:
>
> This patch adds pedit_headers_action structure to store the result of
> parsing tc pedit actions. Then, it calls alloc_tc_pedit_action() to
> populate the mlx5e hardware intermediate representation once all actions
> have been parsed.
>
> This patch comes in preparation for the new flow_action infrastructure,
> where each packet mangling comes in an separated action, ie. not packed
> as in tc pedit.
>
> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
> Acked-by: Jiri Pirko <jiri@mellanox.com>
> Acked-by: Saeed Mahameed <saeedm@mellanox.com>
> ---
> v7: rebase on top of net-next.
>
>  drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 81 ++++++++++++++++++-------
>  1 file changed, 59 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
> index cd289ce0582d..1c8e8da166bd 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
> @@ -1804,6 +1804,12 @@ struct pedit_headers {
>         struct udphdr  udp;
>  };
>
> +struct pedit_headers_action {
> +       struct pedit_headers    vals;
> +       struct pedit_headers    masks;
> +       u32                     pedits;
> +};
> +
>  static int pedit_header_offsets[] = {
>         [TCA_PEDIT_KEY_EX_HDR_TYPE_ETH] = offsetof(struct pedit_headers, eth),
>         [TCA_PEDIT_KEY_EX_HDR_TYPE_IP4] = offsetof(struct pedit_headers, ip4),
> @@ -1815,16 +1821,15 @@ static int pedit_header_offsets[] = {
>  #define pedit_header(_ph, _htype) ((void *)(_ph) + pedit_header_offsets[_htype])
>
>  static int set_pedit_val(u8 hdr_type, u32 mask, u32 val, u32 offset,
> -                        struct pedit_headers *masks,
> -                        struct pedit_headers *vals)
> +                        struct pedit_headers_action *hdrs)
>  {
>         u32 *curr_pmask, *curr_pval;
>
>         if (hdr_type >= __PEDIT_HDR_TYPE_MAX)
>                 goto out_err;
>
> -       curr_pmask = (u32 *)(pedit_header(masks, hdr_type) + offset);
> -       curr_pval  = (u32 *)(pedit_header(vals, hdr_type) + offset);
> +       curr_pmask = (u32 *)(pedit_header(&hdrs->masks, hdr_type) + offset);
> +       curr_pval  = (u32 *)(pedit_header(&hdrs->vals, hdr_type) + offset);
>
>         if (*curr_pmask & mask)  /* disallow acting twice on the same location */
>                 goto out_err;
> @@ -1880,8 +1885,7 @@ static struct mlx5_fields fields[] = {
>   * max from the SW pedit action. On success, it says how many HW actions were
>   * actually parsed.
>   */
> -static int offload_pedit_fields(struct pedit_headers *masks,
> -                               struct pedit_headers *vals,
> +static int offload_pedit_fields(struct pedit_headers_action *hdrs,
>                                 struct mlx5e_tc_flow_parse_attr *parse_attr,
>                                 struct netlink_ext_ack *extack)
>  {
> @@ -1896,10 +1900,10 @@ static int offload_pedit_fields(struct pedit_headers *masks,
>         __be16 mask_be16;
>         void *action;
>
> -       set_masks = &masks[TCA_PEDIT_KEY_EX_CMD_SET];
> -       add_masks = &masks[TCA_PEDIT_KEY_EX_CMD_ADD];
> -       set_vals = &vals[TCA_PEDIT_KEY_EX_CMD_SET];
> -       add_vals = &vals[TCA_PEDIT_KEY_EX_CMD_ADD];
> +       set_masks = &hdrs[TCA_PEDIT_KEY_EX_CMD_SET].masks;
> +       add_masks = &hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].masks;
> +       set_vals = &hdrs[TCA_PEDIT_KEY_EX_CMD_SET].vals;
> +       add_vals = &hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].vals;
>
>         action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto);
>         action = parse_attr->mod_hdr_actions;
> @@ -1995,12 +1999,14 @@ static int offload_pedit_fields(struct pedit_headers *masks,
>  }
>
>  static int alloc_mod_hdr_actions(struct mlx5e_priv *priv,
> -                                const struct tc_action *a, int namespace,
> +                                struct pedit_headers_action *hdrs,
> +                                int namespace,
>                                  struct mlx5e_tc_flow_parse_attr *parse_attr)
>  {
>         int nkeys, action_size, max_actions;
>
> -       nkeys = tcf_pedit_nkeys(a);
> +       nkeys = hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits +
> +               hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits;
>         action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto);
>
>         if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */
> @@ -2024,18 +2030,15 @@ static const struct pedit_headers zero_masks = {};
>  static int parse_tc_pedit_action(struct mlx5e_priv *priv,
>                                  const struct tc_action *a, int namespace,
>                                  struct mlx5e_tc_flow_parse_attr *parse_attr,
> +                                struct pedit_headers_action *hdrs,
>                                  struct netlink_ext_ack *extack)
>  {
> -       struct pedit_headers masks[__PEDIT_CMD_MAX], vals[__PEDIT_CMD_MAX], *cmd_masks;
>         int nkeys, i, err = -EOPNOTSUPP;
>         u32 mask, val, offset;
>         u8 cmd, htype;
>
>         nkeys = tcf_pedit_nkeys(a);
>
> -       memset(masks, 0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX);
> -       memset(vals,  0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX);
> -
>         for (i = 0; i < nkeys; i++) {
>                 htype = tcf_pedit_htype(a, i);
>                 cmd = tcf_pedit_cmd(a, i);
> @@ -2056,21 +2059,37 @@ static int parse_tc_pedit_action(struct mlx5e_priv *priv,
>                 val = tcf_pedit_val(a, i);
>                 offset = tcf_pedit_offset(a, i);
>
> -               err = set_pedit_val(htype, ~mask, val, offset, &masks[cmd], &vals[cmd]);
> +               err = set_pedit_val(htype, ~mask, val, offset, &hdrs[cmd]);
>                 if (err)
>                         goto out_err;
> +
> +               hdrs[cmd].pedits++;
>         }
>
> -       err = alloc_mod_hdr_actions(priv, a, namespace, parse_attr);
> +       return 0;
> +out_err:
> +       return err;
> +}
> +
> +static int alloc_tc_pedit_action(struct mlx5e_priv *priv, int namespace,
> +                                struct mlx5e_tc_flow_parse_attr *parse_attr,
> +                                struct pedit_headers_action *hdrs,
> +                                struct netlink_ext_ack *extack)
> +{
> +       struct pedit_headers *cmd_masks;
> +       int err;
> +       u8 cmd;
> +
> +       err = alloc_mod_hdr_actions(priv, hdrs, namespace, parse_attr);
>         if (err)
>                 goto out_err;
>
> -       err = offload_pedit_fields(masks, vals, parse_attr, extack);
> +       err = offload_pedit_fields(hdrs, parse_attr, extack);
>         if (err < 0)
>                 goto out_dealloc_parsed_actions;
>
>         for (cmd = 0; cmd < __PEDIT_CMD_MAX; cmd++) {
> -               cmd_masks = &masks[cmd];
> +               cmd_masks = &hdrs[cmd].masks;
>                 if (memcmp(cmd_masks, &zero_masks, sizeof(zero_masks))) {
>                         NL_SET_ERR_MSG_MOD(extack,
>                                            "attempt to offload an unsupported field");
> @@ -2211,6 +2230,7 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
>                                 struct mlx5e_tc_flow *flow,
>                                 struct netlink_ext_ack *extack)
>  {
> +       struct pedit_headers_action hdrs[__PEDIT_CMD_MAX] = {};
>         struct mlx5_nic_flow_attr *attr = flow->nic_attr;
>         const struct tc_action *a;
>         u32 action = 0;
> @@ -2232,7 +2252,7 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
>
>                 if (is_tcf_pedit(a)) {
>                         err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_KERNEL,
> -                                                   parse_attr, extack);
> +                                                   parse_attr, hdrs, extack);
>                         if (err)
>                                 return err;
>
> @@ -2286,6 +2306,14 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
>                 return -EINVAL;
>         }
>
> +       if (hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits ||
> +           hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits) {
> +               err = alloc_tc_pedit_action(priv, MLX5_FLOW_NAMESPACE_KERNEL,
> +                                           parse_attr, hdrs, extack);
> +               if (err)
> +                       return err;
> +       }
> +
>         attr->action = action;
>         if (!actions_match_supported(priv, exts, parse_attr, flow, extack))
>                 return -EOPNOTSUPP;
> @@ -2446,6 +2474,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
>                                 struct mlx5e_tc_flow *flow,
>                                 struct netlink_ext_ack *extack)
>  {
> +       struct pedit_headers_action hdrs[__PEDIT_CMD_MAX] = {};
>         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
>         struct mlx5_esw_flow_attr *attr = flow->esw_attr;
>         struct mlx5e_rep_priv *rpriv = priv->ppriv;
> @@ -2470,7 +2499,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
>
>                 if (is_tcf_pedit(a)) {
>                         err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_FDB,
> -                                                   parse_attr, extack);
> +                                                   parse_attr, hdrs, extack);
>                         if (err)
>                                 return err;
>
> @@ -2605,6 +2634,14 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
>                 return -EINVAL;
>         }
>
> +       if (hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits ||
> +           hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits) {
> +               err = alloc_tc_pedit_action(priv, MLX5_FLOW_NAMESPACE_KERNEL,
> +                                           parse_attr, hdrs, extack);
> +               if (err)
> +                       return err;
> +       }
> +
>         attr->action = action;
>         if (!actions_match_supported(priv, exts, parse_attr, flow, extack))
>                 return -EOPNOTSUPP;
> --
> 2.11.0
>
The patch [1] is ready too. David may decide which one will be applied
firstly. and other is rebased ?.

[1] http://patchwork.ozlabs.org/patch/1032952/

^ permalink raw reply

* Re: [PATCH 01/12 net-next,v7] flow_offload: add flow_rule and flow_match structures and use them
From: Jiri Pirko @ 2019-02-02 15:19 UTC (permalink / raw)
  To: Pablo Neira Ayuso
  Cc: netdev, davem, thomas.lendacky, f.fainelli, ariel.elior,
	michael.chan, santosh, madalin.bucur, yisen.zhuang, salil.mehta,
	jeffrey.t.kirsher, tariqt, saeedm, jiri, idosch, jakub.kicinski,
	peppe.cavallaro, grygorii.strashko, andrew, vivien.didelot,
	alexandre.torgue, joabreu, linux-net-drivers, ganeshgr, ogerlitz,
	Manish.Chopra, marcelo.leitner, mkubecek, venkatkumar.duvvuru,
	julia.lawall, john.fastabend, netfilter-devel, cphealy
In-Reply-To: <20190202115054.4880-2-pablo@netfilter.org>

Sat, Feb 02, 2019 at 12:50:43PM CET, pablo@netfilter.org wrote:
>This patch wraps the dissector key and mask - that flower uses to
>represent the matching side - around the flow_match structure.
>
>To avoid a follow up patch that would edit the same LoCs in the drivers,
>this patch also wraps this new flow match structure around the flow rule
>object. This new structure will also contain the flow actions in follow
>up patches.
>
>This introduces two new interfaces:
>
>	bool flow_rule_match_key(rule, dissector_id)
>
>that returns true if a given matching key is set on, and:
>
>	flow_rule_match_XYZ(rule, &match);
>
>To fetch the matching side XYZ into the match container structure, to
>retrieve the key and the mask with one single call.
>
>Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
>---
>v7: rebase on top of net-next. Dropping previous Acked-by tags since
>    this one is slightly large, and it would be good another look after
>    this rebase.

Looks good to me.

Acked-by: Jiri Pirko <jiri@mellanox.com>

^ permalink raw reply

* [PATCH net-next v5 02/12] socket: move compat timeout handling into sock.c
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel; +Cc: netdev, arnd, y2038
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

From: Arnd Bergmann <arnd@arndb.de>

This is a cleanup to prepare for the addition of 64-bit time_t
in O_SNDTIMEO/O_RCVTIMEO. The existing compat handler seems
unnecessarily complex and error-prone, moving it all into the
main setsockopt()/getsockopt() implementation requires half
as much code and is easier to extend.

32-bit user space can now use old_timeval32 on both 32-bit
and 64-bit machines, while 64-bit code can use
__old_kernel_timeval.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
---
 net/compat.c             | 66 +---------------------------------------
 net/core/sock.c          | 65 +++++++++++++++++++++++++--------------
 net/vmw_vsock/af_vsock.c |  4 +--
 3 files changed, 46 insertions(+), 89 deletions(-)

diff --git a/net/compat.c b/net/compat.c
index 959d1c51826d..ce8f6e8cdcd2 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -348,28 +348,6 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
 			      sizeof(struct sock_fprog));
 }
 
-static int do_set_sock_timeout(struct socket *sock, int level,
-		int optname, char __user *optval, unsigned int optlen)
-{
-	struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
-	struct timeval ktime;
-	mm_segment_t old_fs;
-	int err;
-
-	if (optlen < sizeof(*up))
-		return -EINVAL;
-	if (!access_ok(up, sizeof(*up)) ||
-	    __get_user(ktime.tv_sec, &up->tv_sec) ||
-	    __get_user(ktime.tv_usec, &up->tv_usec))
-		return -EFAULT;
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
-	set_fs(old_fs);
-
-	return err;
-}
-
 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
 				char __user *optval, unsigned int optlen)
 {
@@ -377,10 +355,6 @@ static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
 	    optname == SO_ATTACH_REUSEPORT_CBPF)
 		return do_set_attach_filter(sock, level, optname,
 					    optval, optlen);
-	if (!COMPAT_USE_64BIT_TIME &&
-	    (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
-		return do_set_sock_timeout(sock, level, optname, optval, optlen);
-
 	return sock_setsockopt(sock, level, optname, optval, optlen);
 }
 
@@ -417,44 +391,6 @@ COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
 	return __compat_sys_setsockopt(fd, level, optname, optval, optlen);
 }
 
-static int do_get_sock_timeout(struct socket *sock, int level, int optname,
-		char __user *optval, int __user *optlen)
-{
-	struct compat_timeval __user *up;
-	struct timeval ktime;
-	mm_segment_t old_fs;
-	int len, err;
-
-	up = (struct compat_timeval __user *) optval;
-	if (get_user(len, optlen))
-		return -EFAULT;
-	if (len < sizeof(*up))
-		return -EINVAL;
-	len = sizeof(ktime);
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
-	set_fs(old_fs);
-
-	if (!err) {
-		if (put_user(sizeof(*up), optlen) ||
-		    !access_ok(up, sizeof(*up)) ||
-		    __put_user(ktime.tv_sec, &up->tv_sec) ||
-		    __put_user(ktime.tv_usec, &up->tv_usec))
-			err = -EFAULT;
-	}
-	return err;
-}
-
-static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
-				char __user *optval, int __user *optlen)
-{
-	if (!COMPAT_USE_64BIT_TIME &&
-	    (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
-		return do_get_sock_timeout(sock, level, optname, optval, optlen);
-	return sock_getsockopt(sock, level, optname, optval, optlen);
-}
-
 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
 {
 	struct compat_timeval __user *ctv;
@@ -527,7 +463,7 @@ static int __compat_sys_getsockopt(int fd, int level, int optname,
 		}
 
 		if (level == SOL_SOCKET)
-			err = compat_sock_getsockopt(sock, level,
+			err = sock_getsockopt(sock, level,
 					optname, optval, optlen);
 		else if (sock->ops->compat_getsockopt)
 			err = sock->ops->compat_getsockopt(sock, level,
diff --git a/net/core/sock.c b/net/core/sock.c
index 900e8a9435f5..29c0028df5ae 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -335,14 +335,48 @@ int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(__sk_backlog_rcv);
 
+static int sock_get_timeout(long timeo, void *optval)
+{
+	struct __kernel_old_timeval tv;
+
+	if (timeo == MAX_SCHEDULE_TIMEOUT) {
+		tv.tv_sec = 0;
+		tv.tv_usec = 0;
+	} else {
+		tv.tv_sec = timeo / HZ;
+		tv.tv_usec = ((timeo % HZ) * USEC_PER_SEC) / HZ;
+	}
+
+	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
+		struct old_timeval32 tv32 = { tv.tv_sec, tv.tv_usec };
+		*(struct old_timeval32 *)optval = tv32;
+		return sizeof(tv32);
+	}
+
+	*(struct __kernel_old_timeval *)optval = tv;
+	return sizeof(tv);
+}
+
 static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen)
 {
-	struct timeval tv;
+	struct __kernel_old_timeval tv;
 
-	if (optlen < sizeof(tv))
-		return -EINVAL;
-	if (copy_from_user(&tv, optval, sizeof(tv)))
-		return -EFAULT;
+	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
+		struct old_timeval32 tv32;
+
+		if (optlen < sizeof(tv32))
+			return -EINVAL;
+
+		if (copy_from_user(&tv32, optval, sizeof(tv32)))
+			return -EFAULT;
+		tv.tv_sec = tv32.tv_sec;
+		tv.tv_usec = tv32.tv_usec;
+	} else {
+		if (optlen < sizeof(tv))
+			return -EINVAL;
+		if (copy_from_user(&tv, optval, sizeof(tv)))
+			return -EFAULT;
+	}
 	if (tv.tv_usec < 0 || tv.tv_usec >= USEC_PER_SEC)
 		return -EDOM;
 
@@ -1121,7 +1155,8 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		int val;
 		u64 val64;
 		struct linger ling;
-		struct timeval tm;
+		struct old_timeval32 tm32;
+		struct __kernel_old_timeval tm;
 		struct sock_txtime txtime;
 	} v;
 
@@ -1222,25 +1257,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case SO_RCVTIMEO:
-		lv = sizeof(struct timeval);
-		if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
-			v.tm.tv_sec = 0;
-			v.tm.tv_usec = 0;
-		} else {
-			v.tm.tv_sec = sk->sk_rcvtimeo / HZ;
-			v.tm.tv_usec = ((sk->sk_rcvtimeo % HZ) * USEC_PER_SEC) / HZ;
-		}
+		lv = sock_get_timeout(sk->sk_rcvtimeo, &v);
 		break;
 
 	case SO_SNDTIMEO:
-		lv = sizeof(struct timeval);
-		if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) {
-			v.tm.tv_sec = 0;
-			v.tm.tv_usec = 0;
-		} else {
-			v.tm.tv_sec = sk->sk_sndtimeo / HZ;
-			v.tm.tv_usec = ((sk->sk_sndtimeo % HZ) * USEC_PER_SEC) / HZ;
-		}
+		lv = sock_get_timeout(sk->sk_sndtimeo, &v);
 		break;
 
 	case SO_RCVLOWAT:
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index a60df252d3cc..d892000770cf 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1439,7 +1439,7 @@ static int vsock_stream_setsockopt(struct socket *sock,
 		break;
 
 	case SO_VM_SOCKETS_CONNECT_TIMEOUT: {
-		struct timeval tv;
+		struct __kernel_old_timeval tv;
 		COPY_IN(tv);
 		if (tv.tv_sec >= 0 && tv.tv_usec < USEC_PER_SEC &&
 		    tv.tv_sec < (MAX_SCHEDULE_TIMEOUT / HZ - 1)) {
@@ -1517,7 +1517,7 @@ static int vsock_stream_getsockopt(struct socket *sock,
 		break;
 
 	case SO_VM_SOCKETS_CONNECT_TIMEOUT: {
-		struct timeval tv;
+		struct __kernel_old_timeval tv;
 		tv.tv_sec = vsk->connect_timeout / HZ;
 		tv.tv_usec =
 		    (vsk->connect_timeout -
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 03/12] arch: Use asm-generic/socket.h when possible
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel
  Cc: netdev, arnd, y2038, chris, fenghua.yu, tglx, schwidefsky,
	linux-ia64, linux-xtensa, linux-s390
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

Many architectures maintain an arch specific copy of the
file even though there are no differences with the asm-generic
one. Allow these architectures to use the generic one instead.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: chris@zankel.net
Cc: fenghua.yu@intel.com
Cc: tglx@linutronix.de
Cc: schwidefsky@de.ibm.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-s390@vger.kernel.org
---
 arch/ia64/include/uapi/asm/Kbuild     |   1 +
 arch/ia64/include/uapi/asm/socket.h   | 122 -------------------------
 arch/s390/include/uapi/asm/Kbuild     |   1 +
 arch/s390/include/uapi/asm/socket.h   | 119 ------------------------
 arch/x86/include/uapi/asm/Kbuild      |   1 +
 arch/x86/include/uapi/asm/socket.h    |   1 -
 arch/xtensa/include/asm/Kbuild        |   1 +
 arch/xtensa/include/uapi/asm/Kbuild   |   1 +
 arch/xtensa/include/uapi/asm/socket.h | 124 --------------------------
 9 files changed, 5 insertions(+), 366 deletions(-)
 delete mode 100644 arch/ia64/include/uapi/asm/socket.h
 delete mode 100644 arch/s390/include/uapi/asm/socket.h
 delete mode 100644 arch/x86/include/uapi/asm/socket.h
 delete mode 100644 arch/xtensa/include/uapi/asm/socket.h

diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild
index 5b819e53c397..b71c5f787783 100644
--- a/arch/ia64/include/uapi/asm/Kbuild
+++ b/arch/ia64/include/uapi/asm/Kbuild
@@ -2,3 +2,4 @@ include include/uapi/asm-generic/Kbuild.asm
 
 generated-y += unistd_64.h
 generic-y += kvm_para.h
+generic-y += socket.h
diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h
deleted file mode 100644
index ba0d245f9576..000000000000
--- a/arch/ia64/include/uapi/asm/socket.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_IA64_SOCKET_H
-#define _ASM_IA64_SOCKET_H
-
-/*
- * Socket related defines.
- *
- * Based on <asm-i386/socket.h>.
- *
- * Modified 1998-2000
- *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
- */
-
-#include <asm/sockios.h>
-
-/* For setsockopt(2) */
-#define SOL_SOCKET	1
-
-#define SO_DEBUG	1
-#define SO_REUSEADDR	2
-#define SO_TYPE		3
-#define SO_ERROR	4
-#define SO_DONTROUTE	5
-#define SO_BROADCAST	6
-#define SO_SNDBUF	7
-#define SO_RCVBUF	8
-#define SO_SNDBUFFORCE	32
-#define SO_RCVBUFFORCE	33
-#define SO_KEEPALIVE	9
-#define SO_OOBINLINE	10
-#define SO_NO_CHECK	11
-#define SO_PRIORITY	12
-#define SO_LINGER	13
-#define SO_BSDCOMPAT	14
-#define SO_REUSEPORT	15
-#define SO_PASSCRED	16
-#define SO_PEERCRED	17
-#define SO_RCVLOWAT	18
-#define SO_SNDLOWAT	19
-#define SO_RCVTIMEO	20
-#define SO_SNDTIMEO	21
-
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-#define SO_SECURITY_AUTHENTICATION		22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT	23
-#define SO_SECURITY_ENCRYPTION_NETWORK		24
-
-#define SO_BINDTODEVICE		25
-
-/* Socket filtering */
-#define SO_ATTACH_FILTER	26
-#define SO_DETACH_FILTER	27
-#define SO_GET_FILTER		SO_ATTACH_FILTER
-
-#define SO_PEERNAME		28
-#define SO_TIMESTAMP		29
-#define SCM_TIMESTAMP		SO_TIMESTAMP
-
-#define SO_ACCEPTCONN		30
-
-#define SO_PEERSEC             31
-#define SO_PASSSEC		34
-#define SO_TIMESTAMPNS		35
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
-
-#define SO_MARK			36
-
-#define SO_TIMESTAMPING		37
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
-#define SO_PROTOCOL		38
-#define SO_DOMAIN		39
-
-#define SO_RXQ_OVFL             40
-
-#define SO_WIFI_STATUS		41
-#define SCM_WIFI_STATUS		SO_WIFI_STATUS
-#define SO_PEEK_OFF		42
-
-/* Instruct lower device to use last 4-bytes of skb data as FCS */
-#define SO_NOFCS		43
-
-#define SO_LOCK_FILTER		44
-
-#define SO_SELECT_ERR_QUEUE	45
-
-#define SO_BUSY_POLL		46
-
-#define SO_MAX_PACING_RATE	47
-
-#define SO_BPF_EXTENSIONS	48
-
-#define SO_INCOMING_CPU		49
-
-#define SO_ATTACH_BPF		50
-#define SO_DETACH_BPF		SO_DETACH_FILTER
-
-#define SO_ATTACH_REUSEPORT_CBPF	51
-#define SO_ATTACH_REUSEPORT_EBPF	52
-
-#define SO_CNX_ADVICE		53
-
-#define SCM_TIMESTAMPING_OPT_STATS	54
-
-#define SO_MEMINFO		55
-
-#define SO_INCOMING_NAPI_ID	56
-
-#define SO_COOKIE		57
-
-#define SCM_TIMESTAMPING_PKTINFO	58
-
-#define SO_PEERGROUPS		59
-
-#define SO_ZEROCOPY		60
-
-#define SO_TXTIME		61
-#define SCM_TXTIME		SO_TXTIME
-
-#define SO_BINDTOIFINDEX	62
-
-#endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
index da3e0d48abbc..6b0f30b14642 100644
--- a/arch/s390/include/uapi/asm/Kbuild
+++ b/arch/s390/include/uapi/asm/Kbuild
@@ -3,3 +3,4 @@ include include/uapi/asm-generic/Kbuild.asm
 
 generated-y += unistd_32.h
 generated-y += unistd_64.h
+generic-y += socket.h
diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h
deleted file mode 100644
index 49c971587087..000000000000
--- a/arch/s390/include/uapi/asm/socket.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- *  S390 version
- *
- *  Derived from "include/asm-i386/socket.h"
- */
-
-#ifndef _ASM_SOCKET_H
-#define _ASM_SOCKET_H
-
-#include <asm/sockios.h>
-
-/* For setsockopt(2) */
-#define SOL_SOCKET	1
-
-#define SO_DEBUG	1
-#define SO_REUSEADDR	2
-#define SO_TYPE		3
-#define SO_ERROR	4
-#define SO_DONTROUTE	5
-#define SO_BROADCAST	6
-#define SO_SNDBUF	7
-#define SO_RCVBUF	8
-#define SO_SNDBUFFORCE	32
-#define SO_RCVBUFFORCE	33
-#define SO_KEEPALIVE	9
-#define SO_OOBINLINE	10
-#define SO_NO_CHECK	11
-#define SO_PRIORITY	12
-#define SO_LINGER	13
-#define SO_BSDCOMPAT	14
-#define SO_REUSEPORT	15
-#define SO_PASSCRED	16
-#define SO_PEERCRED	17
-#define SO_RCVLOWAT	18
-#define SO_SNDLOWAT	19
-#define SO_RCVTIMEO	20
-#define SO_SNDTIMEO	21
-
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-#define SO_SECURITY_AUTHENTICATION		22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT	23
-#define SO_SECURITY_ENCRYPTION_NETWORK		24
-
-#define SO_BINDTODEVICE	25
-
-/* Socket filtering */
-#define SO_ATTACH_FILTER        26
-#define SO_DETACH_FILTER        27
-#define SO_GET_FILTER		SO_ATTACH_FILTER
-
-#define SO_PEERNAME		28
-#define SO_TIMESTAMP		29
-#define SCM_TIMESTAMP		SO_TIMESTAMP
-
-#define SO_ACCEPTCONN		30
-
-#define SO_PEERSEC		31
-#define SO_PASSSEC		34
-#define SO_TIMESTAMPNS		35
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
-
-#define SO_MARK			36
-
-#define SO_TIMESTAMPING		37
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
-#define SO_PROTOCOL		38
-#define SO_DOMAIN		39
-
-#define SO_RXQ_OVFL             40
-
-#define SO_WIFI_STATUS		41
-#define SCM_WIFI_STATUS		SO_WIFI_STATUS
-#define SO_PEEK_OFF		42
-
-/* Instruct lower device to use last 4-bytes of skb data as FCS */
-#define SO_NOFCS		43
-
-#define SO_LOCK_FILTER		44
-
-#define SO_SELECT_ERR_QUEUE	45
-
-#define SO_BUSY_POLL		46
-
-#define SO_MAX_PACING_RATE	47
-
-#define SO_BPF_EXTENSIONS	48
-
-#define SO_INCOMING_CPU		49
-
-#define SO_ATTACH_BPF		50
-#define SO_DETACH_BPF		SO_DETACH_FILTER
-
-#define SO_ATTACH_REUSEPORT_CBPF	51
-#define SO_ATTACH_REUSEPORT_EBPF	52
-
-#define SO_CNX_ADVICE		53
-
-#define SCM_TIMESTAMPING_OPT_STATS	54
-
-#define	SO_MEMINFO		55
-
-#define SO_INCOMING_NAPI_ID	56
-
-#define SO_COOKIE		57
-
-#define SCM_TIMESTAMPING_PKTINFO	58
-
-#define SO_PEERGROUPS		59
-
-#define SO_ZEROCOPY		60
-
-#define SO_TXTIME		61
-#define SCM_TXTIME		SO_TXTIME
-
-#define SO_BINDTOIFINDEX	62
-
-#endif /* _ASM_SOCKET_H */
diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
index f6648e9928b3..efe701b7c6ce 100644
--- a/arch/x86/include/uapi/asm/Kbuild
+++ b/arch/x86/include/uapi/asm/Kbuild
@@ -3,3 +3,4 @@ include include/uapi/asm-generic/Kbuild.asm
 generated-y += unistd_32.h
 generated-y += unistd_64.h
 generated-y += unistd_x32.h
+generic-y += socket.h
diff --git a/arch/x86/include/uapi/asm/socket.h b/arch/x86/include/uapi/asm/socket.h
deleted file mode 100644
index 6b71384b9d8b..000000000000
--- a/arch/x86/include/uapi/asm/socket.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/socket.h>
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index e255683cd520..809f39ce08c0 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -25,6 +25,7 @@ generic-y += percpu.h
 generic-y += preempt.h
 generic-y += rwsem.h
 generic-y += sections.h
+generic-y += socket.h
 generic-y += topology.h
 generic-y += trace_clock.h
 generic-y += vga.h
diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
index 960bf1e4be53..6b43e5049ff7 100644
--- a/arch/xtensa/include/uapi/asm/Kbuild
+++ b/arch/xtensa/include/uapi/asm/Kbuild
@@ -2,3 +2,4 @@ include include/uapi/asm-generic/Kbuild.asm
 
 generated-y += unistd_32.h
 generic-y += kvm_para.h
+generic-y += socket.h
diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h
deleted file mode 100644
index b434217783d0..000000000000
--- a/arch/xtensa/include/uapi/asm/socket.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- * include/asm-xtensa/socket.h
- *
- * Copied from i386.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#ifndef _XTENSA_SOCKET_H
-#define _XTENSA_SOCKET_H
-
-#include <asm/sockios.h>
-
-/* For setsockoptions(2) */
-#define SOL_SOCKET	1
-
-#define SO_DEBUG	1
-#define SO_REUSEADDR	2
-#define SO_TYPE		3
-#define SO_ERROR	4
-#define SO_DONTROUTE	5
-#define SO_BROADCAST	6
-#define SO_SNDBUF	7
-#define SO_RCVBUF	8
-#define SO_SNDBUFFORCE	32
-#define SO_RCVBUFFORCE	33
-#define SO_KEEPALIVE	9
-#define SO_OOBINLINE	10
-#define SO_NO_CHECK	11
-#define SO_PRIORITY	12
-#define SO_LINGER	13
-#define SO_BSDCOMPAT	14
-#define SO_REUSEPORT	15
-#define SO_PASSCRED	16
-#define SO_PEERCRED	17
-#define SO_RCVLOWAT	18
-#define SO_SNDLOWAT	19
-#define SO_RCVTIMEO	20
-#define SO_SNDTIMEO	21
-
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-
-#define SO_SECURITY_AUTHENTICATION		22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT	23
-#define SO_SECURITY_ENCRYPTION_NETWORK		24
-
-#define SO_BINDTODEVICE	25
-
-/* Socket filtering */
-
-#define SO_ATTACH_FILTER        26
-#define SO_DETACH_FILTER        27
-#define SO_GET_FILTER		SO_ATTACH_FILTER
-
-#define SO_PEERNAME		28
-#define SO_TIMESTAMP		29
-#define SCM_TIMESTAMP		SO_TIMESTAMP
-
-#define SO_ACCEPTCONN		30
-#define SO_PEERSEC		31
-#define SO_PASSSEC		34
-#define SO_TIMESTAMPNS		35
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
-
-#define SO_MARK			36
-
-#define SO_TIMESTAMPING		37
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
-#define SO_PROTOCOL		38
-#define SO_DOMAIN		39
-
-#define SO_RXQ_OVFL             40
-
-#define SO_WIFI_STATUS		41
-#define SCM_WIFI_STATUS		SO_WIFI_STATUS
-#define SO_PEEK_OFF		42
-
-/* Instruct lower device to use last 4-bytes of skb data as FCS */
-#define SO_NOFCS		43
-
-#define SO_LOCK_FILTER		44
-
-#define SO_SELECT_ERR_QUEUE	45
-
-#define SO_BUSY_POLL		46
-
-#define SO_MAX_PACING_RATE	47
-
-#define SO_BPF_EXTENSIONS	48
-
-#define SO_INCOMING_CPU		49
-
-#define SO_ATTACH_BPF		50
-#define SO_DETACH_BPF		SO_DETACH_FILTER
-
-#define SO_ATTACH_REUSEPORT_CBPF	51
-#define SO_ATTACH_REUSEPORT_EBPF	52
-
-#define SO_CNX_ADVICE		53
-
-#define SCM_TIMESTAMPING_OPT_STATS	54
-
-#define SO_MEMINFO		55
-
-#define SO_INCOMING_NAPI_ID	56
-
-#define SO_COOKIE		57
-
-#define SCM_TIMESTAMPING_PKTINFO	58
-
-#define SO_PEERGROUPS		59
-
-#define SO_ZEROCOPY		60
-
-#define SO_TXTIME		61
-#define SCM_TXTIME		SO_TXTIME
-
-#define SO_BINDTOIFINDEX	62
-
-#endif	/* _XTENSA_SOCKET_H */
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 04/12] sockopt: Rename SO_TIMESTAMP* to SO_TIMESTAMP*_OLD
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel
  Cc: netdev, arnd, y2038, deller, dhowells, jejb, ralf, rth, linux-afs,
	linux-alpha, linux-arch, linux-mips, linux-parisc, linux-rdma,
	sparclinux
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

SO_TIMESTAMP, SO_TIMESTAMPNS and SO_TIMESTAMPING options, the
way they are currently defined, are not y2038 safe.
Subsequent patches in the series add new y2038 safe versions
of these options which provide 64 bit timestamps on all
architectures uniformly.
Hence, rename existing options with OLD tag suffixes.

Also note that kernel will not use the untagged SO_TIMESTAMP*
and SCM_TIMESTAMP* options internally anymore.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: deller@gmx.de
Cc: dhowells@redhat.com
Cc: jejb@parisc-linux.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: linux-afs@lists.infradead.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: sparclinux@vger.kernel.org
---
 arch/alpha/include/uapi/asm/socket.h  | 23 ++++++++++++++++-------
 arch/mips/include/uapi/asm/socket.h   | 23 ++++++++++++++++-------
 arch/parisc/include/uapi/asm/socket.h | 23 ++++++++++++++++-------
 arch/sparc/include/uapi/asm/socket.h  | 24 ++++++++++++++++--------
 include/uapi/asm-generic/socket.h     | 23 ++++++++++++++++-------
 net/compat.c                          |  6 +++---
 net/core/sock.c                       | 16 ++++++++--------
 net/ipv4/tcp.c                        |  6 +++---
 net/rds/af_rds.c                      |  2 +-
 net/rds/recv.c                        |  2 +-
 net/rxrpc/local_object.c              |  2 +-
 net/socket.c                          |  8 ++++----
 12 files changed, 101 insertions(+), 57 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index b1c9b542c021..992a0a6dcea1 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -51,13 +51,9 @@
 #define SO_GET_FILTER		SO_ATTACH_FILTER
 
 #define SO_PEERNAME		28
-#define SO_TIMESTAMP		29
-#define SCM_TIMESTAMP		SO_TIMESTAMP
 
 #define SO_PEERSEC		30
 #define SO_PASSSEC		34
-#define SO_TIMESTAMPNS		35
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
 
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION		19
@@ -66,9 +62,6 @@
 
 #define SO_MARK			36
 
-#define SO_TIMESTAMPING		37
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
 #define SO_RXQ_OVFL             40
 
 #define SO_WIFI_STATUS		41
@@ -117,4 +110,20 @@
 
 #define SO_BINDTOIFINDEX	62
 
+#define SO_TIMESTAMP_OLD        29
+#define SO_TIMESTAMPNS_OLD      35
+#define SO_TIMESTAMPING_OLD     37
+
+#if !defined(__KERNEL__)
+
+#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
+
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+#define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
+#define SCM_TIMESTAMPING        SO_TIMESTAMPING
+
+#endif
+
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 73e25e35d803..0f4516c34df2 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -65,21 +65,14 @@
 #define SO_GET_FILTER		SO_ATTACH_FILTER
 
 #define SO_PEERNAME		28
-#define SO_TIMESTAMP		29
-#define SCM_TIMESTAMP		SO_TIMESTAMP
 
 #define SO_PEERSEC		30
 #define SO_SNDBUFFORCE		31
 #define SO_RCVBUFFORCE		33
 #define SO_PASSSEC		34
-#define SO_TIMESTAMPNS		35
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
 
 #define SO_MARK			36
 
-#define SO_TIMESTAMPING		37
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
 #define SO_RXQ_OVFL		40
 
 #define SO_WIFI_STATUS		41
@@ -128,4 +121,20 @@
 
 #define SO_BINDTOIFINDEX	62
 
+#define SO_TIMESTAMP_OLD        29
+#define SO_TIMESTAMPNS_OLD      35
+#define SO_TIMESTAMPING_OLD     37
+
+#if !defined(__KERNEL__)
+
+#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
+
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+#define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
+#define SCM_TIMESTAMPING        SO_TIMESTAMPING
+
+#endif
+
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 52bed5976cbe..7c180321ebd6 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -34,10 +34,6 @@
 #define SO_BSDCOMPAT	0x400e
 #define SO_PASSCRED	0x4010
 #define SO_PEERCRED	0x4011
-#define SO_TIMESTAMP	0x4012
-#define SCM_TIMESTAMP	SO_TIMESTAMP
-#define SO_TIMESTAMPNS	0x4013
-#define SCM_TIMESTAMPNS	SO_TIMESTAMPNS
 
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION		0x4016
@@ -58,9 +54,6 @@
 
 #define SO_MARK			0x401f
 
-#define SO_TIMESTAMPING		0x4020
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
 #define SO_RXQ_OVFL             0x4021
 
 #define SO_WIFI_STATUS		0x4022
@@ -109,4 +102,20 @@
 
 #define SO_BINDTOIFINDEX	0x4037
 
+#define SO_TIMESTAMP_OLD        0x4012
+#define SO_TIMESTAMPNS_OLD      0x4013
+#define SO_TIMESTAMPING_OLD     0x4020
+
+#if !defined(__KERNEL__)
+
+#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
+
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+#define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
+#define SCM_TIMESTAMPING        SO_TIMESTAMPING
+
+#endif
+
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index bbdb81594dd4..d8a1bbc3e6c4 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -33,7 +33,6 @@
 #define SO_PROTOCOL	0x1028
 #define SO_DOMAIN	0x1029
 
-
 /* Linux specific, keep the same. */
 #define SO_NO_CHECK	0x000b
 #define SO_PRIORITY	0x000c
@@ -45,19 +44,12 @@
 #define SO_GET_FILTER		SO_ATTACH_FILTER
 
 #define SO_PEERNAME		0x001c
-#define SO_TIMESTAMP		0x001d
-#define SCM_TIMESTAMP		SO_TIMESTAMP
 
 #define SO_PEERSEC		0x001e
 #define SO_PASSSEC		0x001f
-#define SO_TIMESTAMPNS		0x0021
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
 
 #define SO_MARK			0x0022
 
-#define SO_TIMESTAMPING		0x0023
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
 #define SO_RXQ_OVFL             0x0024
 
 #define SO_WIFI_STATUS		0x0025
@@ -111,4 +103,20 @@
 #define SO_SECURITY_ENCRYPTION_TRANSPORT	0x5002
 #define SO_SECURITY_ENCRYPTION_NETWORK		0x5004
 
+#define SO_TIMESTAMP_OLD         0x001d
+#define SO_TIMESTAMPNS_OLD       0x0021
+#define SO_TIMESTAMPING_OLD      0x0023
+
+#if !defined(__KERNEL__)
+
+#define SO_TIMESTAMP           SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS         SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING        SO_TIMESTAMPING_OLD
+
+#define SCM_TIMESTAMP          SO_TIMESTAMP
+#define SCM_TIMESTAMPNS        SO_TIMESTAMPNS
+#define SCM_TIMESTAMPING       SO_TIMESTAMPING
+
+#endif
+
 #endif /* _ASM_SOCKET_H */
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index 3066ab3853a8..4ef3aed31fb7 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -46,21 +46,14 @@
 #define SO_GET_FILTER		SO_ATTACH_FILTER
 
 #define SO_PEERNAME		28
-#define SO_TIMESTAMP		29
-#define SCM_TIMESTAMP		SO_TIMESTAMP
 
 #define SO_ACCEPTCONN		30
 
 #define SO_PEERSEC		31
 #define SO_PASSSEC		34
-#define SO_TIMESTAMPNS		35
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
 
 #define SO_MARK			36
 
-#define SO_TIMESTAMPING		37
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
 #define SO_PROTOCOL		38
 #define SO_DOMAIN		39
 
@@ -112,4 +105,20 @@
 
 #define SO_BINDTOIFINDEX	62
 
+#define SO_TIMESTAMP_OLD        29
+#define SO_TIMESTAMPNS_OLD      35
+#define SO_TIMESTAMPING_OLD     37
+
+#if !defined(__KERNEL__)
+
+#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
+
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+#define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
+#define SCM_TIMESTAMPING        SO_TIMESTAMPING
+
+#endif
+
 #endif /* __ASM_GENERIC_SOCKET_H */
diff --git a/net/compat.c b/net/compat.c
index ce8f6e8cdcd2..ccf93cd0e49b 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -219,7 +219,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
 	}
 
 	if (!COMPAT_USE_64BIT_TIME) {
-		if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
+		if (level == SOL_SOCKET && type == SO_TIMESTAMP_OLD) {
 			struct timeval *tv = (struct timeval *)data;
 			ctv.tv_sec = tv->tv_sec;
 			ctv.tv_usec = tv->tv_usec;
@@ -227,8 +227,8 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
 			len = sizeof(ctv);
 		}
 		if (level == SOL_SOCKET &&
-		    (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
-			int count = type == SCM_TIMESTAMPNS ? 1 : 3;
+		    (type == SO_TIMESTAMPNS_OLD || type == SO_TIMESTAMPING_OLD)) {
+			int count = type == SO_TIMESTAMPNS_OLD ? 1 : 3;
 			int i;
 			struct timespec *ts = (struct timespec *)data;
 			for (i = 0; i < count; i++) {
diff --git a/net/core/sock.c b/net/core/sock.c
index 29c0028df5ae..d5ca8641968f 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -867,10 +867,10 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 			clear_bit(SOCK_PASSCRED, &sock->flags);
 		break;
 
-	case SO_TIMESTAMP:
-	case SO_TIMESTAMPNS:
+	case SO_TIMESTAMP_OLD:
+	case SO_TIMESTAMPNS_OLD:
 		if (valbool)  {
-			if (optname == SO_TIMESTAMP)
+			if (optname == SO_TIMESTAMP_OLD)
 				sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
 			else
 				sock_set_flag(sk, SOCK_RCVTSTAMPNS);
@@ -882,7 +882,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 		}
 		break;
 
-	case SO_TIMESTAMPING:
+	case SO_TIMESTAMPING_OLD:
 		if (val & ~SOF_TIMESTAMPING_MASK) {
 			ret = -EINVAL;
 			break;
@@ -1243,16 +1243,16 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		sock_warn_obsolete_bsdism("getsockopt");
 		break;
 
-	case SO_TIMESTAMP:
+	case SO_TIMESTAMP_OLD:
 		v.val = sock_flag(sk, SOCK_RCVTSTAMP) &&
 				!sock_flag(sk, SOCK_RCVTSTAMPNS);
 		break;
 
-	case SO_TIMESTAMPNS:
+	case SO_TIMESTAMPNS_OLD:
 		v.val = sock_flag(sk, SOCK_RCVTSTAMPNS);
 		break;
 
-	case SO_TIMESTAMPING:
+	case SO_TIMESTAMPING_OLD:
 		v.val = sk->sk_tsflags;
 		break;
 
@@ -2168,7 +2168,7 @@ int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg,
 			return -EINVAL;
 		sockc->mark = *(u32 *)CMSG_DATA(cmsg);
 		break;
-	case SO_TIMESTAMPING:
+	case SO_TIMESTAMPING_OLD:
 		if (cmsg->cmsg_len != CMSG_LEN(sizeof(u32)))
 			return -EINVAL;
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 6f8d292ad501..e29aec59cad1 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1867,13 +1867,13 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
 	if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) {
 		if (sock_flag(sk, SOCK_RCVTSTAMP)) {
 			if (sock_flag(sk, SOCK_RCVTSTAMPNS)) {
-				put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS,
+				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
 					 sizeof(tss->ts[0]), &tss->ts[0]);
 			} else {
 				tv.tv_sec = tss->ts[0].tv_sec;
 				tv.tv_usec = tss->ts[0].tv_nsec / 1000;
 
-				put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP,
+				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
 					 sizeof(tv), &tv);
 			}
 		}
@@ -1893,7 +1893,7 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
 
 	if (has_timestamping) {
 		tss->ts[1] = (struct timespec) {0};
-		put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPING,
+		put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_OLD,
 			 sizeof(*tss), tss);
 	}
 }
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
index 65387e1e6964..eeb4639adbe5 100644
--- a/net/rds/af_rds.c
+++ b/net/rds/af_rds.c
@@ -430,7 +430,7 @@ static int rds_setsockopt(struct socket *sock, int level, int optname,
 		ret = rds_set_transport(rs, optval, optlen);
 		release_sock(sock->sk);
 		break;
-	case SO_TIMESTAMP:
+	case SO_TIMESTAMP_OLD:
 		lock_sock(sock->sk);
 		ret = rds_enable_recvtstamp(sock->sk, optval, optlen);
 		release_sock(sock->sk);
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 727639dac8a7..04e30d63a159 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -550,7 +550,7 @@ static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg,
 	if ((inc->i_rx_tstamp != 0) &&
 	    sock_flag(rds_rs_to_sk(rs), SOCK_RCVTSTAMP)) {
 		struct timeval tv = ktime_to_timeval(inc->i_rx_tstamp);
-		ret = put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP,
+		ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
 			       sizeof(tv), &tv);
 		if (ret)
 			goto out;
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 0906e51d3cfb..15cf42d5b53a 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -202,7 +202,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
 
 		/* We want receive timestamps. */
 		opt = 1;
-		ret = kernel_setsockopt(local->socket, SOL_SOCKET, SO_TIMESTAMPNS,
+		ret = kernel_setsockopt(local->socket, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
 					(char *)&opt, sizeof(opt));
 		if (ret < 0) {
 			_debug("setsockopt failed");
diff --git a/net/socket.c b/net/socket.c
index e89884e2197b..5087f9e40f3a 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -669,7 +669,7 @@ static bool skb_is_err_queue(const struct sk_buff *skb)
  * before the software timestamp is received, a hardware TX timestamp may be
  * returned only if there is no software TX timestamp. Ignore false software
  * timestamps, which may be made in the __sock_recv_timestamp() call when the
- * option SO_TIMESTAMP(NS) is enabled on the socket, even when the skb has a
+ * option SO_TIMESTAMP_OLD(NS) is enabled on the socket, even when the skb has a
  * hardware timestamp.
  */
 static bool skb_is_swtx_tstamp(const struct sk_buff *skb, int false_tstamp)
@@ -721,12 +721,12 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 		if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) {
 			struct timeval tv;
 			skb_get_timestamp(skb, &tv);
-			put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP,
+			put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
 				 sizeof(tv), &tv);
 		} else {
 			struct timespec ts;
 			skb_get_timestampns(skb, &ts);
-			put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS,
+			put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
 				 sizeof(ts), &ts);
 		}
 	}
@@ -746,7 +746,7 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 	}
 	if (!empty) {
 		put_cmsg(msg, SOL_SOCKET,
-			 SCM_TIMESTAMPING, sizeof(tss), &tss);
+			 SO_TIMESTAMPING_OLD, sizeof(tss), &tss);
 
 		if (skb_is_err_queue(skb) && skb->len &&
 		    SKB_EXT_ERR(skb)->opt_stats)
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 07/12] socket: Add struct __kernel_sock_timeval
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel; +Cc: netdev, arnd, y2038
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

The new type is meant to be used as a y2038 safe structure
to be used as part of cmsg data.
Presently the SO_TIMESTAMP socket option uses struct timeval
for timestamps. This is not y2038 safe.
Subsequent patches in the series add new y2038 safe socket
option to be used in the place of SO_TIMESTAMP_OLD.
struct __kernel_sock_timeval will be used as the timestamp
format at that time.

struct __kernel_sock_timeval also maintains the same layout
across 32 bit and 64 bit ABIs.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
---
 include/uapi/linux/time.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h
index 04d5587f30d3..b8ad1b86b942 100644
--- a/include/uapi/linux/time.h
+++ b/include/uapi/linux/time.h
@@ -70,6 +70,11 @@ struct __kernel_old_timeval {
 };
 #endif
 
+struct __kernel_sock_timeval {
+	__s64 tv_sec;
+	__s64 tv_usec;
+};
+
 /*
  * The IDs of the various system clocks (for POSIX.1b interval timers):
  */
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 08/12] socket: Add SO_TIMESTAMP[NS]_NEW
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel
  Cc: netdev, arnd, y2038, jejb, ralf, rth, linux-alpha, linux-mips,
	linux-parisc, linux-rdma, sparclinux
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of
socket timestamp options.
These are the y2038 safe versions of the SO_TIMESTAMP_OLD
and SO_TIMESTAMPNS_OLD for all architectures.

Note that the format of scm_timestamping.ts[0] is not changed
in this patch.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: jejb@parisc-linux.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: linux-alpha@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: sparclinux@vger.kernel.org
---
 arch/alpha/include/uapi/asm/socket.h  | 14 +++++++++--
 arch/mips/include/uapi/asm/socket.h   | 14 +++++++++--
 arch/parisc/include/uapi/asm/socket.h | 14 +++++++++--
 arch/sparc/include/uapi/asm/socket.h  | 14 +++++++++--
 include/linux/skbuff.h                | 18 ++++++++++++++
 include/net/sock.h                    |  1 +
 include/uapi/asm-generic/socket.h     | 15 ++++++++++--
 net/core/sock.c                       | 21 ++++++++++++++--
 net/ipv4/tcp.c                        | 33 +++++++++++++++++++------
 net/rds/af_rds.c                      |  8 ++++--
 net/rds/recv.c                        | 16 ++++++++++--
 net/socket.c                          | 35 +++++++++++++++++++++------
 12 files changed, 171 insertions(+), 32 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index 992a0a6dcea1..aab11eec7c22 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -3,6 +3,7 @@
 #define _UAPI_ASM_SOCKET_H
 
 #include <asm/sockios.h>
+#include <asm/bitsperlong.h>
 
 /* For setsockopt(2) */
 /*
@@ -114,10 +115,19 @@
 #define SO_TIMESTAMPNS_OLD      35
 #define SO_TIMESTAMPING_OLD     37
 
+#define SO_TIMESTAMP_NEW        63
+#define SO_TIMESTAMPNS_NEW      64
+
 #if !defined(__KERNEL__)
 
-#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
-#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#if __BITS_PER_LONG == 64
+#define SO_TIMESTAMP		SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#else
+#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
+#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#endif
+
 #define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 0f4516c34df2..11014f684d9f 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -11,6 +11,7 @@
 #define _UAPI_ASM_SOCKET_H
 
 #include <asm/sockios.h>
+#include <asm/bitsperlong.h>
 
 /*
  * For setsockopt(2)
@@ -125,10 +126,19 @@
 #define SO_TIMESTAMPNS_OLD      35
 #define SO_TIMESTAMPING_OLD     37
 
+#define SO_TIMESTAMP_NEW        63
+#define SO_TIMESTAMPNS_NEW      64
+
 #if !defined(__KERNEL__)
 
-#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
-#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#if __BITS_PER_LONG == 64
+#define SO_TIMESTAMP		SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#else
+#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
+#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#endif
+
 #define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 7c180321ebd6..cbc4b89c2fe4 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -3,6 +3,7 @@
 #define _UAPI_ASM_SOCKET_H
 
 #include <asm/sockios.h>
+#include <asm/bitsperlong.h>
 
 /* For setsockopt(2) */
 #define SOL_SOCKET	0xffff
@@ -106,10 +107,19 @@
 #define SO_TIMESTAMPNS_OLD      0x4013
 #define SO_TIMESTAMPING_OLD     0x4020
 
+#define SO_TIMESTAMP_NEW        0x4038
+#define SO_TIMESTAMPNS_NEW      0x4039
+
 #if !defined(__KERNEL__)
 
-#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
-#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#if __BITS_PER_LONG == 64
+#define SO_TIMESTAMP		SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#else
+#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
+#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#endif
+
 #define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index d8a1bbc3e6c4..85127425b294 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -3,6 +3,7 @@
 #define _ASM_SOCKET_H
 
 #include <asm/sockios.h>
+#include <asm/bitsperlong.h>
 
 /* For setsockopt(2) */
 #define SOL_SOCKET	0xffff
@@ -107,10 +108,19 @@
 #define SO_TIMESTAMPNS_OLD       0x0021
 #define SO_TIMESTAMPING_OLD      0x0023
 
+#define SO_TIMESTAMP_NEW         0x0041
+#define SO_TIMESTAMPNS_NEW       0x0042
+
 #if !defined(__KERNEL__)
 
-#define SO_TIMESTAMP           SO_TIMESTAMP_OLD
-#define SO_TIMESTAMPNS         SO_TIMESTAMPNS_OLD
+#if __BITS_PER_LONG == 64
+#define SO_TIMESTAMP		SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#else
+#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
+#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#endif
+
 #define SO_TIMESTAMPING        SO_TIMESTAMPING_OLD
 
 #define SCM_TIMESTAMP          SO_TIMESTAMP
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4001611a4c9f..831846617d07 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3498,12 +3498,30 @@ static inline void skb_get_timestamp(const struct sk_buff *skb,
 	*stamp = ns_to_kernel_old_timeval(skb->tstamp);
 }
 
+static inline void skb_get_new_timestamp(const struct sk_buff *skb,
+					 struct __kernel_sock_timeval *stamp)
+{
+	struct timespec64 ts = ktime_to_timespec64(skb->tstamp);
+
+	stamp->tv_sec = ts.tv_sec;
+	stamp->tv_usec = ts.tv_nsec / 1000;
+}
+
 static inline void skb_get_timestampns(const struct sk_buff *skb,
 				       struct timespec *stamp)
 {
 	*stamp = ktime_to_timespec(skb->tstamp);
 }
 
+static inline void skb_get_new_timestampns(const struct sk_buff *skb,
+					   struct __kernel_timespec *stamp)
+{
+	struct timespec64 ts = ktime_to_timespec64(skb->tstamp);
+
+	stamp->tv_sec = ts.tv_sec;
+	stamp->tv_nsec = ts.tv_nsec;
+}
+
 static inline void __net_timestamp(struct sk_buff *skb)
 {
 	skb->tstamp = ktime_get_real();
diff --git a/include/net/sock.h b/include/net/sock.h
index 2b229f7be8eb..6679f3c120b0 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -805,6 +805,7 @@ enum sock_flags {
 	SOCK_RCU_FREE, /* wait rcu grace period in sk_destruct() */
 	SOCK_TXTIME,
 	SOCK_XDP, /* XDP is attached */
+	SOCK_TSTAMP_NEW, /* Indicates 64 bit timestamps always */
 };
 
 #define SK_FLAGS_TIMESTAMP ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index 4ef3aed31fb7..f22d3f7162f8 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -3,6 +3,7 @@
 #define __ASM_GENERIC_SOCKET_H
 
 #include <asm/sockios.h>
+#include <asm/bitsperlong.h>
 
 /* For setsockopt(2) */
 #define SOL_SOCKET	1
@@ -109,10 +110,20 @@
 #define SO_TIMESTAMPNS_OLD      35
 #define SO_TIMESTAMPING_OLD     37
 
+#define SO_TIMESTAMP_NEW        63
+#define SO_TIMESTAMPNS_NEW      64
+
 #if !defined(__KERNEL__)
 
-#define SO_TIMESTAMP            SO_TIMESTAMP_OLD
-#define SO_TIMESTAMPNS          SO_TIMESTAMPNS_OLD
+#if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
+/* on 64-bit and x32, avoid the ?: operator */
+#define SO_TIMESTAMP		SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#else
+#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
+#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#endif
+
 #define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/net/core/sock.c b/net/core/sock.c
index d5ca8641968f..14b987eab10c 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -868,9 +868,16 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case SO_TIMESTAMP_OLD:
+	case SO_TIMESTAMP_NEW:
 	case SO_TIMESTAMPNS_OLD:
+	case SO_TIMESTAMPNS_NEW:
 		if (valbool)  {
-			if (optname == SO_TIMESTAMP_OLD)
+			if (optname == SO_TIMESTAMP_NEW || optname == SO_TIMESTAMPNS_NEW)
+				sock_set_flag(sk, SOCK_TSTAMP_NEW);
+			else
+				sock_reset_flag(sk, SOCK_TSTAMP_NEW);
+
+			if (optname == SO_TIMESTAMP_OLD || optname == SO_TIMESTAMP_NEW)
 				sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
 			else
 				sock_set_flag(sk, SOCK_RCVTSTAMPNS);
@@ -879,6 +886,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 		} else {
 			sock_reset_flag(sk, SOCK_RCVTSTAMP);
 			sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
+			sock_reset_flag(sk, SOCK_TSTAMP_NEW);
 		}
 		break;
 
@@ -1245,11 +1253,20 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	case SO_TIMESTAMP_OLD:
 		v.val = sock_flag(sk, SOCK_RCVTSTAMP) &&
+				!sock_flag(sk, SOCK_TSTAMP_NEW) &&
 				!sock_flag(sk, SOCK_RCVTSTAMPNS);
 		break;
 
 	case SO_TIMESTAMPNS_OLD:
-		v.val = sock_flag(sk, SOCK_RCVTSTAMPNS);
+		v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && !sock_flag(sk, SOCK_TSTAMP_NEW);
+		break;
+
+	case SO_TIMESTAMP_NEW:
+		v.val = sock_flag(sk, SOCK_RCVTSTAMP) && sock_flag(sk, SOCK_TSTAMP_NEW);
+		break;
+
+	case SO_TIMESTAMPNS_NEW:
+		v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && sock_flag(sk, SOCK_TSTAMP_NEW);
 		break;
 
 	case SO_TIMESTAMPING_OLD:
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 3ce41b04c0f0..4e9388bf104a 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1861,20 +1861,37 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb,
 static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
 			       struct scm_timestamping *tss)
 {
-	struct __kernel_old_timeval tv;
+	int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW);
 	bool has_timestamping = false;
 
 	if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) {
 		if (sock_flag(sk, SOCK_RCVTSTAMP)) {
 			if (sock_flag(sk, SOCK_RCVTSTAMPNS)) {
-				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
-					 sizeof(tss->ts[0]), &tss->ts[0]);
+				if (new_tstamp) {
+					struct __kernel_timespec kts = {tss->ts[0].tv_sec, tss->ts[0].tv_nsec};
+
+					put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW,
+						 sizeof(kts), &kts);
+				} else {
+					put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
+						 sizeof(tss->ts[0]), &tss->ts[0]);
+				}
 			} else {
-				tv.tv_sec = tss->ts[0].tv_sec;
-				tv.tv_usec = tss->ts[0].tv_nsec / 1000;
-
-				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
-					 sizeof(tv), &tv);
+				if (new_tstamp) {
+					struct __kernel_sock_timeval stv;
+
+					stv.tv_sec = tss->ts[0].tv_sec;
+					stv.tv_usec = tss->ts[0].tv_nsec / 1000;
+					put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_NEW,
+						 sizeof(stv), &stv);
+				} else {
+					struct __kernel_old_timeval tv;
+
+					tv.tv_sec = tss->ts[0].tv_sec;
+					tv.tv_usec = tss->ts[0].tv_nsec / 1000;
+					put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
+						 sizeof(tv), &tv);
+				}
 			}
 		}
 
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
index eeb4639adbe5..65571a6273c3 100644
--- a/net/rds/af_rds.c
+++ b/net/rds/af_rds.c
@@ -348,7 +348,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval,
 }
 
 static int rds_enable_recvtstamp(struct sock *sk, char __user *optval,
-				 int optlen)
+				 int optlen, int optname)
 {
 	int val, valbool;
 
@@ -360,6 +360,9 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval,
 
 	valbool = val ? 1 : 0;
 
+	if (optname == SO_TIMESTAMP_NEW)
+		sock_set_flag(sk, SOCK_TSTAMP_NEW);
+
 	if (valbool)
 		sock_set_flag(sk, SOCK_RCVTSTAMP);
 	else
@@ -431,8 +434,9 @@ static int rds_setsockopt(struct socket *sock, int level, int optname,
 		release_sock(sock->sk);
 		break;
 	case SO_TIMESTAMP_OLD:
+	case SO_TIMESTAMP_NEW:
 		lock_sock(sock->sk);
-		ret = rds_enable_recvtstamp(sock->sk, optval, optlen);
+		ret = rds_enable_recvtstamp(sock->sk, optval, optlen, optname);
 		release_sock(sock->sk);
 		break;
 	case SO_RDS_MSG_RXPATH_LATENCY:
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 435bf2320cd3..6bb6b16ca270 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -550,8 +550,20 @@ static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg,
 	if ((inc->i_rx_tstamp != 0) &&
 	    sock_flag(rds_rs_to_sk(rs), SOCK_RCVTSTAMP)) {
 		struct __kernel_old_timeval tv = ns_to_kernel_old_timeval(inc->i_rx_tstamp);
-		ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
-			       sizeof(tv), &tv);
+
+		if (!sock_flag(rds_rs_to_sk(rs), SOCK_TSTAMP_NEW)) {
+			ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
+				       sizeof(tv), &tv);
+		} else {
+			struct __kernel_sock_timeval sk_tv;
+
+			sk_tv.tv_sec = tv.tv_sec;
+			sk_tv.tv_usec = tv.tv_usec;
+
+			ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_NEW,
+				       sizeof(sk_tv), &sk_tv);
+		}
+
 		if (ret)
 			goto out;
 	}
diff --git a/net/socket.c b/net/socket.c
index 9cc281cdb9d9..1de96abd78d3 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -705,6 +705,7 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 	struct sk_buff *skb)
 {
 	int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP);
+	int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW);
 	struct scm_timestamping tss;
 	int empty = 1, false_tstamp = 0;
 	struct skb_shared_hwtstamps *shhwtstamps =
@@ -719,15 +720,33 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 
 	if (need_software_tstamp) {
 		if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) {
-			struct __kernel_old_timeval tv;
-			skb_get_timestamp(skb, &tv);
-			put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
-				 sizeof(tv), &tv);
+			if (new_tstamp) {
+				struct __kernel_sock_timeval tv;
+
+				skb_get_new_timestamp(skb, &tv);
+				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_NEW,
+					 sizeof(tv), &tv);
+			} else {
+				struct __kernel_old_timeval tv;
+
+				skb_get_timestamp(skb, &tv);
+				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
+					 sizeof(tv), &tv);
+			}
 		} else {
-			struct timespec ts;
-			skb_get_timestampns(skb, &ts);
-			put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
-				 sizeof(ts), &ts);
+			if (new_tstamp) {
+				struct __kernel_timespec ts;
+
+				skb_get_new_timestampns(skb, &ts);
+				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW,
+					 sizeof(ts), &ts);
+			} else {
+				struct timespec ts;
+
+				skb_get_timestampns(skb, &ts);
+				put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
+					 sizeof(ts), &ts);
+			}
 		}
 	}
 
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 10/12] socket: Update timestamping Documentation
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel; +Cc: netdev, arnd, y2038
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

With the new y2038 safe timestamping options added, update the
documentation to reflect the changes.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
---
 Documentation/networking/timestamping.txt | 43 ++++++++++++++++++++---
 1 file changed, 38 insertions(+), 5 deletions(-)

diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt
index 9d1432e0aaa8..bbdaf8990031 100644
--- a/Documentation/networking/timestamping.txt
+++ b/Documentation/networking/timestamping.txt
@@ -6,11 +6,21 @@ The interfaces for receiving network packages timestamps are:
 * SO_TIMESTAMP
   Generates a timestamp for each incoming packet in (not necessarily
   monotonic) system time. Reports the timestamp via recvmsg() in a
-  control message as struct timeval (usec resolution).
+  control message in usec resolution.
+  SO_TIMESTAMP is defined as SO_TIMESTAMP_NEW or SO_TIMESTAMP_OLD
+  based on the architecture type and time_t representation of libc.
+  Control message format is in struct __kernel_old_timeval for
+  SO_TIMESTAMP_OLD and in struct __kernel_sock_timeval for
+  SO_TIMESTAMP_NEW options respectively.
 
 * SO_TIMESTAMPNS
   Same timestamping mechanism as SO_TIMESTAMP, but reports the
-  timestamp as struct timespec (nsec resolution).
+  timestamp as struct timespec in nsec resolution.
+  SO_TIMESTAMPNS is defined as SO_TIMESTAMPNS_NEW or SO_TIMESTAMPNS_OLD
+  based on the architecture type and time_t representation of libc.
+  Control message format is in struct timespec for SO_TIMESTAMPNS_OLD
+  and in struct __kernel_timespec for SO_TIMESTAMPNS_NEW options
+  respectively.
 
 * IP_MULTICAST_LOOP + SO_TIMESTAMP[NS]
   Only for multicast:approximate transmit timestamp obtained by
@@ -22,7 +32,7 @@ The interfaces for receiving network packages timestamps are:
   timestamps for stream sockets.
 
 
-1.1 SO_TIMESTAMP:
+1.1 SO_TIMESTAMP (also SO_TIMESTAMP_OLD and SO_TIMESTAMP_NEW):
 
 This socket option enables timestamping of datagrams on the reception
 path. Because the destination socket, if any, is not known early in
@@ -31,15 +41,25 @@ same is true for all early receive timestamp options.
 
 For interface details, see `man 7 socket`.
 
+Always use SO_TIMESTAMP_NEW timestamp to always get timestamp in
+struct __kernel_sock_timeval format.
 
-1.2 SO_TIMESTAMPNS:
+SO_TIMESTAMP_OLD returns incorrect timestamps after the year 2038
+on 32 bit machines.
+
+1.2 SO_TIMESTAMPNS (also SO_TIMESTAMPNS_OLD and SO_TIMESTAMPNS_NEW):
 
 This option is identical to SO_TIMESTAMP except for the returned data type.
 Its struct timespec allows for higher resolution (ns) timestamps than the
 timeval of SO_TIMESTAMP (ms).
 
+Always use SO_TIMESTAMPNS_NEW timestamp to always get timestamp in
+struct __kernel_timespec format.
+
+SO_TIMESTAMPNS_OLD returns incorrect timestamps after the year 2038
+on 32 bit machines.
 
-1.3 SO_TIMESTAMPING:
+1.3 SO_TIMESTAMPING (also SO_TIMESTAMPING_OLD and SO_TIMESTAMPING_NEW):
 
 Supports multiple types of timestamp requests. As a result, this
 socket option takes a bitmap of flags, not a boolean. In
@@ -323,10 +343,23 @@ SO_TIMESTAMP and SO_TIMESTAMPNS records can be retrieved.
 These timestamps are returned in a control message with cmsg_level
 SOL_SOCKET, cmsg_type SCM_TIMESTAMPING, and payload of type
 
+For SO_TIMESTAMPING_OLD:
+
 struct scm_timestamping {
 	struct timespec ts[3];
 };
 
+For SO_TIMESTAMPING_NEW:
+
+struct scm_timestamping64 {
+	struct __kernel_timespec ts[3];
+
+Always use SO_TIMESTAMPING_NEW timestamp to always get timestamp in
+struct scm_timestamping64 format.
+
+SO_TIMESTAMPING_OLD returns incorrect timestamps after the year 2038
+on 32 bit machines.
+
 The structure can return up to three timestamps. This is a legacy
 feature. At least one field is non-zero at any time. Most timestamps
 are passed in ts[0]. Hardware timestamps are passed in ts[2].
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 11/12] socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel
  Cc: netdev, arnd, y2038, ccaulfie, deller, paulus, ralf, rth,
	cluster-devel, linuxppc-dev, linux-alpha, linux-arch, linux-mips,
	linux-parisc, sparclinux
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

SO_RCVTIMEO and SO_SNDTIMEO socket options use struct timeval
as the time format. struct timeval is not y2038 safe.
The subsequent patches in the series add support for new socket
timeout options with _NEW suffix that will use y2038 safe
data structures. Although the existing struct timeval layout
is sufficiently wide to represent timeouts, because of the way
libc will interpret time_t based on user defined flag, these
new flags provide a way of having a structure that is the same
for all architectures consistently.
Rename the existing options with _OLD suffix forms so that the
right option is enabled for userspace applications according
to the architecture and time_t definition of libc.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: ccaulfie@redhat.com
Cc: deller@gmx.de
Cc: paulus@samba.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: cluster-devel@redhat.com
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: sparclinux@vger.kernel.org
---
 arch/alpha/include/uapi/asm/socket.h   | 7 +++++--
 arch/mips/include/uapi/asm/socket.h    | 6 ++++--
 arch/parisc/include/uapi/asm/socket.h  | 6 ++++--
 arch/powerpc/include/uapi/asm/socket.h | 4 ++--
 arch/sparc/include/uapi/asm/socket.h   | 7 +++++--
 fs/dlm/lowcomms.c                      | 4 ++--
 include/uapi/asm-generic/socket.h      | 6 ++++--
 net/core/sock.c                        | 4 ++--
 8 files changed, 28 insertions(+), 16 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index 934ea6268f1a..9826d1db71d0 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -31,8 +31,8 @@
 #define SO_RCVBUFFORCE	0x100b
 #define	SO_RCVLOWAT	0x1010
 #define	SO_SNDLOWAT	0x1011
-#define	SO_RCVTIMEO	0x1012
-#define	SO_SNDTIMEO	0x1013
+#define	SO_RCVTIMEO_OLD	0x1012
+#define	SO_SNDTIMEO_OLD	0x1013
 #define SO_ACCEPTCONN	0x1014
 #define SO_PROTOCOL	0x1028
 #define SO_DOMAIN	0x1029
@@ -121,6 +121,9 @@
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
+
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 110f9506d64f..96cc0e907f12 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -39,8 +39,8 @@
 #define SO_RCVBUF	0x1002	/* Receive buffer. */
 #define SO_SNDLOWAT	0x1003	/* send low-water mark */
 #define SO_RCVLOWAT	0x1004	/* receive low-water mark */
-#define SO_SNDTIMEO	0x1005	/* send timeout */
-#define SO_RCVTIMEO	0x1006	/* receive timeout */
+#define SO_SNDTIMEO_OLD	0x1005	/* send timeout */
+#define SO_RCVTIMEO_OLD	0x1006	/* receive timeout */
 #define SO_ACCEPTCONN	0x1009
 #define SO_PROTOCOL	0x1028	/* protocol type */
 #define SO_DOMAIN	0x1029	/* domain/socket family */
@@ -132,6 +132,8 @@
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index bee2a9dde656..046f0cd9cce4 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -22,8 +22,8 @@
 #define SO_RCVBUFFORCE	0x100b
 #define SO_SNDLOWAT	0x1003
 #define SO_RCVLOWAT	0x1004
-#define SO_SNDTIMEO	0x1005
-#define SO_RCVTIMEO	0x1006
+#define SO_SNDTIMEO_OLD	0x1005
+#define SO_RCVTIMEO_OLD	0x1006
 #define SO_ERROR	0x1007
 #define SO_TYPE		0x1008
 #define SO_PROTOCOL	0x1028
@@ -113,6 +113,8 @@
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index 94de465e0920..12aa0c43e775 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -11,8 +11,8 @@
 
 #define SO_RCVLOWAT	16
 #define SO_SNDLOWAT	17
-#define SO_RCVTIMEO	18
-#define SO_SNDTIMEO	19
+#define SO_RCVTIMEO_OLD	18
+#define SO_SNDTIMEO_OLD	19
 #define SO_PASSCRED	20
 #define SO_PEERCRED	21
 
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 2b38dda51426..342ffdc3b424 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -21,8 +21,8 @@
 #define SO_BSDCOMPAT    0x0400
 #define SO_RCVLOWAT     0x0800
 #define SO_SNDLOWAT     0x1000
-#define SO_RCVTIMEO     0x2000
-#define SO_SNDTIMEO     0x4000
+#define SO_RCVTIMEO_OLD     0x2000
+#define SO_SNDTIMEO_OLD     0x4000
 #define SO_ACCEPTCONN	0x8000
 
 #define SO_SNDBUF	0x1001
@@ -114,6 +114,9 @@
 
 #if !defined(__KERNEL__)
 
+#define SO_RCVTIMEO              SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO              SO_SNDTIMEO_OLD
+
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 76976d6e50f9..c98ad9777ad9 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1089,12 +1089,12 @@ static void sctp_connect_to_sock(struct connection *con)
 	 * since O_NONBLOCK argument in connect() function does not work here,
 	 * then, we should restore the default value of this attribute.
 	 */
-	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv,
+	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_OLD, (char *)&tv,
 			  sizeof(tv));
 	result = sock->ops->connect(sock, (struct sockaddr *)&daddr, addr_len,
 				   0);
 	memset(&tv, 0, sizeof(tv));
-	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv,
+	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_OLD, (char *)&tv,
 			  sizeof(tv));
 
 	if (result == -EINPROGRESS)
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index 2713e0fa68ef..c56b8b487c12 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -30,8 +30,8 @@
 #define SO_PEERCRED	17
 #define SO_RCVLOWAT	18
 #define SO_SNDLOWAT	19
-#define SO_RCVTIMEO	20
-#define SO_SNDTIMEO	21
+#define SO_RCVTIMEO_OLD	20
+#define SO_SNDTIMEO_OLD	21
 #endif
 
 /* Security levels - as per NRL IPv6 - don't actually do anything */
@@ -116,6 +116,8 @@
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
 /* on 64-bit and x32, avoid the ?: operator */
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
diff --git a/net/core/sock.c b/net/core/sock.c
index a9d1ecce96e5..27b40002b780 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -941,11 +941,11 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 			sk->sk_rcvlowat = val ? : 1;
 		break;
 
-	case SO_RCVTIMEO:
+	case SO_RCVTIMEO_OLD:
 		ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
 		break;
 
-	case SO_SNDTIMEO:
+	case SO_SNDTIMEO_OLD:
 		ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
 		break;
 
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 12/12] sock: Add SO_RCVTIMEO_NEW and SO_SNDTIMEO_NEW
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel
  Cc: netdev, arnd, y2038, ccaulfie, deller, paulus, ralf, rth,
	cluster-devel, linuxppc-dev, linux-alpha, linux-arch, linux-mips,
	linux-parisc, sparclinux
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

Add new socket timeout options that are y2038 safe.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: ccaulfie@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: paulus@samba.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: cluster-devel@redhat.com
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: sparclinux@vger.kernel.org
---
 arch/alpha/include/uapi/asm/socket.h  | 12 ++++--
 arch/mips/include/uapi/asm/socket.h   | 11 +++++-
 arch/parisc/include/uapi/asm/socket.h | 10 ++++-
 arch/sparc/include/uapi/asm/socket.h  | 11 +++++-
 include/uapi/asm-generic/socket.h     | 11 +++++-
 net/core/sock.c                       | 53 ++++++++++++++++++++-------
 6 files changed, 83 insertions(+), 25 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index 9826d1db71d0..0d0fddb7e738 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -119,19 +119,25 @@
 #define SO_TIMESTAMPNS_NEW      64
 #define SO_TIMESTAMPING_NEW     65
 
-#if !defined(__KERNEL__)
+#define SO_RCVTIMEO_NEW         66
+#define SO_SNDTIMEO_NEW         67
 
-#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
-#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
+#if !defined(__KERNEL__)
 
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
 #define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
+
+#define SO_RCVTIMEO		SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO		SO_SNDTIMEO_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
 #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
+
+#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW)
+#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW)
 #endif
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 96cc0e907f12..eb9f33f8a8b3 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -130,18 +130,25 @@
 #define SO_TIMESTAMPNS_NEW      64
 #define SO_TIMESTAMPING_NEW     65
 
+#define SO_RCVTIMEO_NEW         66
+#define SO_SNDTIMEO_NEW         67
+
 #if !defined(__KERNEL__)
 
-#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
-#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
 #define SO_TIMESTAMPING		SO_TIMESTAMPING_OLD
+
+#define SO_RCVTIMEO             SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO             SO_SNDTIMEO_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
 #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
+
+#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW)
+#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW)
 #endif
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 046f0cd9cce4..16e428f03526 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -111,18 +111,24 @@
 #define SO_TIMESTAMPNS_NEW      0x4039
 #define SO_TIMESTAMPING_NEW     0x403A
 
+#define SO_RCVTIMEO_NEW         0x4040
+#define SO_SNDTIMEO_NEW         0x4041
+
 #if !defined(__KERNEL__)
 
-#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
-#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
 #define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
+#define SO_RCVTIMEO		SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO		SO_SNDTIMEO_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
 #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
+
+#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW)
+#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW)
 #endif
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 342ffdc3b424..8c9f74a66b55 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -112,19 +112,26 @@
 #define SO_TIMESTAMPNS_NEW       0x0042
 #define SO_TIMESTAMPING_NEW      0x0043
 
+#define SO_RCVTIMEO_NEW          0x0044
+#define SO_SNDTIMEO_NEW          0x0045
+
 #if !defined(__KERNEL__)
 
-#define SO_RCVTIMEO              SO_RCVTIMEO_OLD
-#define SO_SNDTIMEO              SO_SNDTIMEO_OLD
 
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
 #define SO_TIMESTAMPING		SO_TIMESTAMPING_OLD
+
+#define SO_RCVTIMEO		SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO		SO_SNDTIMEO_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
 #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
+
+#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW)
+#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW)
 #endif
 
 #define SCM_TIMESTAMP          SO_TIMESTAMP
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index c56b8b487c12..c8b430cb6dc4 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -114,19 +114,26 @@
 #define SO_TIMESTAMPNS_NEW      64
 #define SO_TIMESTAMPING_NEW     65
 
+#define SO_RCVTIMEO_NEW         66
+#define SO_SNDTIMEO_NEW         67
+
 #if !defined(__KERNEL__)
 
-#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
-#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
 /* on 64-bit and x32, avoid the ?: operator */
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
 #define SO_TIMESTAMPING		SO_TIMESTAMPING_OLD
+
+#define SO_RCVTIMEO		SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO		SO_SNDTIMEO_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
 #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
+
+#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW)
+#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW)
 #endif
 
 #define SCM_TIMESTAMP           SO_TIMESTAMP
diff --git a/net/core/sock.c b/net/core/sock.c
index 27b40002b780..a8904ae40713 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -335,9 +335,10 @@ int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(__sk_backlog_rcv);
 
-static int sock_get_timeout(long timeo, void *optval)
+static int sock_get_timeout(long timeo, void *optval, bool old_timeval)
 {
-	struct __kernel_old_timeval tv;
+	struct __kernel_sock_timeval tv;
+	int size;
 
 	if (timeo == MAX_SCHEDULE_TIMEOUT) {
 		tv.tv_sec = 0;
@@ -353,13 +354,23 @@ static int sock_get_timeout(long timeo, void *optval)
 		return sizeof(tv32);
 	}
 
-	*(struct __kernel_old_timeval *)optval = tv;
-	return sizeof(tv);
+	if (old_timeval) {
+		struct __kernel_old_timeval old_tv;
+		old_tv.tv_sec = tv.tv_sec;
+		old_tv.tv_usec = tv.tv_usec;
+		*(struct __kernel_old_timeval *)optval = old_tv;
+		size = sizeof(old_tv);
+	} else {
+		*(struct __kernel_sock_timeval *)optval = tv;
+		size = sizeof(tv);
+	}
+
+	return size;
 }
 
-static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen)
+static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen, bool old_timeval)
 {
-	struct __kernel_old_timeval tv;
+	struct __kernel_sock_timeval tv;
 
 	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct old_timeval32 tv32;
@@ -371,6 +382,15 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen)
 			return -EFAULT;
 		tv.tv_sec = tv32.tv_sec;
 		tv.tv_usec = tv32.tv_usec;
+	} else if (old_timeval) {
+		struct __kernel_old_timeval old_tv;
+
+		if (optlen < sizeof(old_tv))
+			return -EINVAL;
+		if (copy_from_user(&old_tv, optval, sizeof(old_tv)))
+			return -EFAULT;
+		tv.tv_sec = old_tv.tv_sec;
+		tv.tv_usec = old_tv.tv_usec;
 	} else {
 		if (optlen < sizeof(tv))
 			return -EINVAL;
@@ -394,8 +414,8 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen)
 	*timeo_p = MAX_SCHEDULE_TIMEOUT;
 	if (tv.tv_sec == 0 && tv.tv_usec == 0)
 		return 0;
-	if (tv.tv_sec < (MAX_SCHEDULE_TIMEOUT/HZ - 1))
-		*timeo_p = tv.tv_sec * HZ + DIV_ROUND_UP(tv.tv_usec, USEC_PER_SEC / HZ);
+	if (tv.tv_sec < (MAX_SCHEDULE_TIMEOUT / HZ - 1))
+		*timeo_p = tv.tv_sec * HZ + DIV_ROUND_UP((unsigned long)tv.tv_usec, USEC_PER_SEC / HZ);
 	return 0;
 }
 
@@ -942,11 +962,13 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case SO_RCVTIMEO_OLD:
-		ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
+	case SO_RCVTIMEO_NEW:
+		ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen, optname == SO_RCVTIMEO_OLD);
 		break;
 
 	case SO_SNDTIMEO_OLD:
-		ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
+	case SO_SNDTIMEO_NEW:
+		ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD);
 		break;
 
 	case SO_ATTACH_FILTER:
@@ -1171,6 +1193,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		struct linger ling;
 		struct old_timeval32 tm32;
 		struct __kernel_old_timeval tm;
+		struct  __kernel_sock_timeval stm;
 		struct sock_txtime txtime;
 	} v;
 
@@ -1279,12 +1302,14 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		v.val = sk->sk_tsflags;
 		break;
 
-	case SO_RCVTIMEO:
-		lv = sock_get_timeout(sk->sk_rcvtimeo, &v);
+	case SO_RCVTIMEO_OLD:
+	case SO_RCVTIMEO_NEW:
+		lv = sock_get_timeout(sk->sk_rcvtimeo, &v, SO_RCVTIMEO_OLD == optname);
 		break;
 
-	case SO_SNDTIMEO:
-		lv = sock_get_timeout(sk->sk_sndtimeo, &v);
+	case SO_SNDTIMEO_OLD:
+	case SO_SNDTIMEO_NEW:
+		lv = sock_get_timeout(sk->sk_sndtimeo, &v, SO_SNDTIMEO_OLD == optname);
 		break;
 
 	case SO_RCVLOWAT:
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 09/12] socket: Add SO_TIMESTAMPING_NEW
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel
  Cc: netdev, arnd, y2038, chris, fenghua.yu, rth, tglx, ubraun,
	linux-alpha, linux-arch, linux-ia64, linux-mips, linux-s390,
	linux-xtensa, sparclinux
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

Add SO_TIMESTAMPING_NEW variant of socket timestamp options.
This is the y2038 safe versions of the SO_TIMESTAMPING_OLD
for all architectures.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: chris@zankel.net
Cc: fenghua.yu@intel.com
Cc: rth@twiddle.net
Cc: tglx@linutronix.de
Cc: ubraun@linux.ibm.com
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-s390@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: sparclinux@vger.kernel.org
---
 arch/alpha/include/uapi/asm/socket.h  |  5 +++--
 arch/mips/include/uapi/asm/socket.h   |  5 +++--
 arch/parisc/include/uapi/asm/socket.h |  5 +++--
 arch/sparc/include/uapi/asm/socket.h  |  5 +++--
 include/linux/socket.h                |  8 +++++++
 include/uapi/asm-generic/socket.h     |  5 +++--
 include/uapi/linux/errqueue.h         |  4 ++++
 net/core/scm.c                        | 27 ++++++++++++++++++++++++
 net/core/sock.c                       |  8 ++++++-
 net/ipv4/tcp.c                        | 30 +++++++++++++++------------
 net/smc/af_smc.c                      |  3 ++-
 net/socket.c                          | 13 +++++++-----
 12 files changed, 88 insertions(+), 30 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index aab11eec7c22..934ea6268f1a 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -117,19 +117,20 @@
 
 #define SO_TIMESTAMP_NEW        63
 #define SO_TIMESTAMPNS_NEW      64
+#define SO_TIMESTAMPING_NEW     65
 
 #if !defined(__KERNEL__)
 
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
 #endif
 
-#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
-
 #define SCM_TIMESTAMP           SO_TIMESTAMP
 #define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 11014f684d9f..110f9506d64f 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -128,19 +128,20 @@
 
 #define SO_TIMESTAMP_NEW        63
 #define SO_TIMESTAMPNS_NEW      64
+#define SO_TIMESTAMPING_NEW     65
 
 #if !defined(__KERNEL__)
 
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING		SO_TIMESTAMPING_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
 #endif
 
-#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
-
 #define SCM_TIMESTAMP           SO_TIMESTAMP
 #define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index cbc4b89c2fe4..bee2a9dde656 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -109,19 +109,20 @@
 
 #define SO_TIMESTAMP_NEW        0x4038
 #define SO_TIMESTAMPNS_NEW      0x4039
+#define SO_TIMESTAMPING_NEW     0x403A
 
 #if !defined(__KERNEL__)
 
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
 #endif
 
-#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
-
 #define SCM_TIMESTAMP           SO_TIMESTAMP
 #define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 85127425b294..2b38dda51426 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -110,19 +110,20 @@
 
 #define SO_TIMESTAMP_NEW         0x0041
 #define SO_TIMESTAMPNS_NEW       0x0042
+#define SO_TIMESTAMPING_NEW      0x0043
 
 #if !defined(__KERNEL__)
 
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING		SO_TIMESTAMPING_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
 #endif
 
-#define SO_TIMESTAMPING        SO_TIMESTAMPING_OLD
-
 #define SCM_TIMESTAMP          SO_TIMESTAMP
 #define SCM_TIMESTAMPNS        SO_TIMESTAMPNS
 #define SCM_TIMESTAMPING       SO_TIMESTAMPING
diff --git a/include/linux/socket.h b/include/linux/socket.h
index ab2041a00e01..6016daeecee4 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -349,9 +349,17 @@ struct ucred {
 extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr);
 extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
 
+struct timespec64;
 struct __kernel_timespec;
 struct old_timespec32;
 
+struct scm_timestamping_internal {
+	struct timespec64 ts[3];
+};
+
+extern void put_cmsg_scm_timestamping64(struct msghdr *msg, struct scm_timestamping_internal *tss);
+extern void put_cmsg_scm_timestamping(struct msghdr *msg, struct scm_timestamping_internal *tss);
+
 /* The __sys_...msg variants allow MSG_CMSG_COMPAT iff
  * forbid_cmsg_compat==false
  */
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index f22d3f7162f8..2713e0fa68ef 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -112,6 +112,7 @@
 
 #define SO_TIMESTAMP_NEW        63
 #define SO_TIMESTAMPNS_NEW      64
+#define SO_TIMESTAMPING_NEW     65
 
 #if !defined(__KERNEL__)
 
@@ -119,13 +120,13 @@
 /* on 64-bit and x32, avoid the ?: operator */
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING		SO_TIMESTAMPING_OLD
 #else
 #define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
 #define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
 #endif
 
-#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
-
 #define SCM_TIMESTAMP           SO_TIMESTAMP
 #define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
 #define SCM_TIMESTAMPING        SO_TIMESTAMPING
diff --git a/include/uapi/linux/errqueue.h b/include/uapi/linux/errqueue.h
index c0151200f7d1..d955b9e32288 100644
--- a/include/uapi/linux/errqueue.h
+++ b/include/uapi/linux/errqueue.h
@@ -41,6 +41,10 @@ struct scm_timestamping {
 	struct timespec ts[3];
 };
 
+struct scm_timestamping64 {
+	struct __kernel_timespec ts[3];
+};
+
 /* The type of scm_timestamping, passed in sock_extended_err ee_info.
  * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]
  * is zero, then this is a hardware timestamp and recorded in ts[2].
diff --git a/net/core/scm.c b/net/core/scm.c
index b1ff8a441748..52ef219cf6df 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -29,6 +29,7 @@
 #include <linux/pid.h>
 #include <linux/nsproxy.h>
 #include <linux/slab.h>
+#include <linux/errqueue.h>
 
 #include <linux/uaccess.h>
 
@@ -252,6 +253,32 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
 }
 EXPORT_SYMBOL(put_cmsg);
 
+void put_cmsg_scm_timestamping64(struct msghdr *msg, struct scm_timestamping_internal *tss_internal)
+{
+	struct scm_timestamping64 tss;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(tss.ts); i++) {
+		tss.ts[i].tv_sec = tss_internal->ts[i].tv_sec;
+		tss.ts[i].tv_nsec = tss_internal->ts[i].tv_nsec;
+	}
+
+	put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_NEW, sizeof(tss), &tss);
+}
+EXPORT_SYMBOL(put_cmsg_scm_timestamping64);
+
+void put_cmsg_scm_timestamping(struct msghdr *msg, struct scm_timestamping_internal *tss_internal)
+{
+	struct scm_timestamping tss;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(tss.ts); i++)
+		tss.ts[i] = timespec64_to_timespec(tss_internal->ts[i]);
+
+	put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_OLD, sizeof(tss), &tss);
+}
+EXPORT_SYMBOL(put_cmsg_scm_timestamping);
+
 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
 {
 	struct cmsghdr __user *cm
diff --git a/net/core/sock.c b/net/core/sock.c
index 14b987eab10c..a9d1ecce96e5 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -890,6 +890,8 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 		}
 		break;
 
+	case SO_TIMESTAMPING_NEW:
+		sock_set_flag(sk, SOCK_TSTAMP_NEW);
 	case SO_TIMESTAMPING_OLD:
 		if (val & ~SOF_TIMESTAMPING_MASK) {
 			ret = -EINVAL;
@@ -921,9 +923,13 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 		if (val & SOF_TIMESTAMPING_RX_SOFTWARE)
 			sock_enable_timestamp(sk,
 					      SOCK_TIMESTAMPING_RX_SOFTWARE);
-		else
+		else {
+			if (optname == SO_TIMESTAMPING_NEW)
+				sock_reset_flag(sk, SOCK_TSTAMP_NEW);
+
 			sock_disable_timestamp(sk,
 					       (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE));
+		}
 		break;
 
 	case SO_RCVLOWAT:
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 4e9388bf104a..cab6b2f2f61d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1844,22 +1844,22 @@ static int tcp_zerocopy_receive(struct sock *sk,
 #endif
 
 static void tcp_update_recv_tstamps(struct sk_buff *skb,
-				    struct scm_timestamping *tss)
+				    struct scm_timestamping_internal *tss)
 {
 	if (skb->tstamp)
-		tss->ts[0] = ktime_to_timespec(skb->tstamp);
+		tss->ts[0] = ktime_to_timespec64(skb->tstamp);
 	else
-		tss->ts[0] = (struct timespec) {0};
+		tss->ts[0] = (struct timespec64) {0};
 
 	if (skb_hwtstamps(skb)->hwtstamp)
-		tss->ts[2] = ktime_to_timespec(skb_hwtstamps(skb)->hwtstamp);
+		tss->ts[2] = ktime_to_timespec64(skb_hwtstamps(skb)->hwtstamp);
 	else
-		tss->ts[2] = (struct timespec) {0};
+		tss->ts[2] = (struct timespec64) {0};
 }
 
 /* Similar to __sock_recv_timestamp, but does not require an skb */
 static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
-			       struct scm_timestamping *tss)
+			       struct scm_timestamping_internal *tss)
 {
 	int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW);
 	bool has_timestamping = false;
@@ -1873,8 +1873,10 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
 					put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW,
 						 sizeof(kts), &kts);
 				} else {
+					struct timespec ts_old = timespec64_to_timespec(tss->ts[0]);
+
 					put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD,
-						 sizeof(tss->ts[0]), &tss->ts[0]);
+						 sizeof(ts_old), &ts_old);
 				}
 			} else {
 				if (new_tstamp) {
@@ -1898,20 +1900,22 @@ static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
 		if (sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE)
 			has_timestamping = true;
 		else
-			tss->ts[0] = (struct timespec) {0};
+			tss->ts[0] = (struct timespec64) {0};
 	}
 
 	if (tss->ts[2].tv_sec || tss->ts[2].tv_nsec) {
 		if (sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE)
 			has_timestamping = true;
 		else
-			tss->ts[2] = (struct timespec) {0};
+			tss->ts[2] = (struct timespec64) {0};
 	}
 
 	if (has_timestamping) {
-		tss->ts[1] = (struct timespec) {0};
-		put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPING_OLD,
-			 sizeof(*tss), tss);
+		tss->ts[1] = (struct timespec64) {0};
+		if (sock_flag(sk, SOCK_TSTAMP_NEW))
+			put_cmsg_scm_timestamping64(msg, tss);
+		else
+			put_cmsg_scm_timestamping(msg, tss);
 	}
 }
 
@@ -1952,7 +1956,7 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
 	long timeo;
 	struct sk_buff *skb, *last;
 	u32 urg_hole = 0;
-	struct scm_timestamping tss;
+	struct scm_timestamping_internal tss;
 	bool has_tss = false;
 	bool has_cmsg;
 
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index c4e56602e0c6..369870b0ef79 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -291,7 +291,8 @@ static void smc_copy_sock_settings(struct sock *nsk, struct sock *osk,
 			     (1UL << SOCK_RXQ_OVFL) | \
 			     (1UL << SOCK_WIFI_STATUS) | \
 			     (1UL << SOCK_NOFCS) | \
-			     (1UL << SOCK_FILTER_LOCKED))
+			     (1UL << SOCK_FILTER_LOCKED) | \
+			     (1UL << SOCK_TSTAMP_NEW))
 /* copy only relevant settings and flags of SOL_SOCKET level from smc to
  * clc socket (since smc is not called for these options from net/core)
  */
diff --git a/net/socket.c b/net/socket.c
index 1de96abd78d3..d51930689b98 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -706,7 +706,8 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 {
 	int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP);
 	int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW);
-	struct scm_timestamping tss;
+	struct scm_timestamping_internal tss;
+
 	int empty = 1, false_tstamp = 0;
 	struct skb_shared_hwtstamps *shhwtstamps =
 		skb_hwtstamps(skb);
@@ -752,20 +753,22 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 
 	memset(&tss, 0, sizeof(tss));
 	if ((sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE) &&
-	    ktime_to_timespec_cond(skb->tstamp, tss.ts + 0))
+	    ktime_to_timespec64_cond(skb->tstamp, tss.ts + 0))
 		empty = 0;
 	if (shhwtstamps &&
 	    (sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
 	    !skb_is_swtx_tstamp(skb, false_tstamp) &&
-	    ktime_to_timespec_cond(shhwtstamps->hwtstamp, tss.ts + 2)) {
+	    ktime_to_timespec64_cond(shhwtstamps->hwtstamp, tss.ts + 2)) {
 		empty = 0;
 		if ((sk->sk_tsflags & SOF_TIMESTAMPING_OPT_PKTINFO) &&
 		    !skb_is_err_queue(skb))
 			put_ts_pktinfo(msg, skb);
 	}
 	if (!empty) {
-		put_cmsg(msg, SOL_SOCKET,
-			 SO_TIMESTAMPING_OLD, sizeof(tss), &tss);
+		if (sock_flag(sk, SOCK_TSTAMP_NEW))
+			put_cmsg_scm_timestamping64(msg, &tss);
+		else
+			put_cmsg_scm_timestamping(msg, &tss);
 
 		if (skb_is_err_queue(skb) && skb->len &&
 		    SKB_EXT_ERR(skb)->opt_stats)
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 06/12] socket: Use old_timeval types for socket timestamps
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel; +Cc: netdev, arnd, y2038, isdn
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

As part of y2038 solution, all internal uses of
struct timeval are replaced by struct __kernel_old_timeval
and struct compat_timeval by struct old_timeval32.
Make socket timestamps use these new types.

This is mainly to be able to verify that the kernel build
is y2038 safe when such non y2038 safe types are not
supported anymore.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: isdn@linux-pingi.de
---
 drivers/isdn/mISDN/socket.c | 2 +-
 include/linux/skbuff.h      | 6 +++---
 net/bluetooth/hci_sock.c    | 4 ++--
 net/compat.c                | 6 +++---
 net/ipv4/tcp.c              | 2 +-
 net/rds/recv.c              | 2 +-
 net/socket.c                | 2 +-
 7 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
index 15d3ca37669a..4ab8b1b6608f 100644
--- a/drivers/isdn/mISDN/socket.c
+++ b/drivers/isdn/mISDN/socket.c
@@ -103,7 +103,7 @@ mISDN_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
 static inline void
 mISDN_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
 {
-	struct timeval	tv;
+	struct __kernel_old_timeval	tv;
 
 	if (_pms(sk)->cmask & MISDN_TIME_STAMP) {
 		skb_get_timestamp(skb, &tv);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index c34595374e93..4001611a4c9f 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3486,16 +3486,16 @@ static inline ktime_t skb_get_ktime(const struct sk_buff *skb)
 /**
  *	skb_get_timestamp - get timestamp from a skb
  *	@skb: skb to get stamp from
- *	@stamp: pointer to struct timeval to store stamp in
+ *	@stamp: pointer to struct __kernel_old_timeval to store stamp in
  *
  *	Timestamps are stored in the skb as offsets to a base timestamp.
  *	This function converts the offset back to a struct timeval and stores
  *	it in stamp.
  */
 static inline void skb_get_timestamp(const struct sk_buff *skb,
-				     struct timeval *stamp)
+				     struct __kernel_old_timeval *stamp)
 {
-	*stamp = ktime_to_timeval(skb->tstamp);
+	*stamp = ns_to_kernel_old_timeval(skb->tstamp);
 }
 
 static inline void skb_get_timestampns(const struct sk_buff *skb,
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 1506e1632394..65228bfa4487 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1383,9 +1383,9 @@ static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg,
 
 	if (mask & HCI_CMSG_TSTAMP) {
 #ifdef CONFIG_COMPAT
-		struct compat_timeval ctv;
+		struct old_timeval32 ctv;
 #endif
-		struct timeval tv;
+		struct __kernel_old_timeval tv;
 		void *data;
 		int len;
 
diff --git a/net/compat.c b/net/compat.c
index ccf93cd0e49b..9629f053d4fa 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -209,8 +209,8 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
 {
 	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
 	struct compat_cmsghdr cmhdr;
-	struct compat_timeval ctv;
-	struct compat_timespec cts[3];
+	struct old_timeval32 ctv;
+	struct old_timespec32 cts[3];
 	int cmlen;
 
 	if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
@@ -220,7 +220,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
 
 	if (!COMPAT_USE_64BIT_TIME) {
 		if (level == SOL_SOCKET && type == SO_TIMESTAMP_OLD) {
-			struct timeval *tv = (struct timeval *)data;
+			struct __kernel_old_timeval *tv = (struct __kernel_old_timeval *)data;
 			ctv.tv_sec = tv->tv_sec;
 			ctv.tv_usec = tv->tv_usec;
 			data = &ctv;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index e29aec59cad1..3ce41b04c0f0 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1861,7 +1861,7 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb,
 static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk,
 			       struct scm_timestamping *tss)
 {
-	struct timeval tv;
+	struct __kernel_old_timeval tv;
 	bool has_timestamping = false;
 
 	if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) {
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 04e30d63a159..435bf2320cd3 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -549,7 +549,7 @@ static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg,
 
 	if ((inc->i_rx_tstamp != 0) &&
 	    sock_flag(rds_rs_to_sk(rs), SOCK_RCVTSTAMP)) {
-		struct timeval tv = ktime_to_timeval(inc->i_rx_tstamp);
+		struct __kernel_old_timeval tv = ns_to_kernel_old_timeval(inc->i_rx_tstamp);
 		ret = put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
 			       sizeof(tv), &tv);
 		if (ret)
diff --git a/net/socket.c b/net/socket.c
index 5087f9e40f3a..9cc281cdb9d9 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -719,7 +719,7 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 
 	if (need_software_tstamp) {
 		if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) {
-			struct timeval tv;
+			struct __kernel_old_timeval tv;
 			skb_get_timestamp(skb, &tv);
 			put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD,
 				 sizeof(tv), &tv);
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 05/12] arch: sparc: Override struct __kernel_old_timeval
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel; +Cc: netdev, arnd, y2038, sparclinux
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

struct __kernel_old_timeval is supposed to have the same
layout as struct timeval. But, it was inadvarently missed
that __kernel_suseconds has a different definition for
sparc64.
Provide an asm-specific override that fixes it.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: sparclinux@vger.kernel.org
---
 arch/sparc/include/uapi/asm/posix_types.h | 10 ++++++++++
 include/uapi/linux/time.h                 |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/arch/sparc/include/uapi/asm/posix_types.h b/arch/sparc/include/uapi/asm/posix_types.h
index fec499d6efb7..f139e0048628 100644
--- a/arch/sparc/include/uapi/asm/posix_types.h
+++ b/arch/sparc/include/uapi/asm/posix_types.h
@@ -19,6 +19,16 @@ typedef unsigned short         __kernel_old_gid_t;
 typedef int		       __kernel_suseconds_t;
 #define __kernel_suseconds_t __kernel_suseconds_t
 
+typedef long		__kernel_long_t;
+typedef unsigned long	__kernel_ulong_t;
+#define __kernel_long_t __kernel_long_t
+
+struct __kernel_old_timeval {
+	__kernel_long_t tv_sec;
+	__kernel_suseconds_t tv_usec;
+};
+#define __kernel_old_timeval __kernel_old_timeval
+
 #else
 /* sparc 32 bit */
 
diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h
index 6b56a2208be7..04d5587f30d3 100644
--- a/include/uapi/linux/time.h
+++ b/include/uapi/linux/time.h
@@ -63,10 +63,12 @@ struct __kernel_itimerspec {
  * here, this is probably because it is not y2038 safe and needs to
  * be changed to use another interface.
  */
+#ifndef __kernel_old_timeval
 struct __kernel_old_timeval {
 	__kernel_long_t tv_sec;
 	__kernel_long_t tv_usec;
 };
+#endif
 
 /*
  * The IDs of the various system clocks (for POSIX.1b interval timers):
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 01/12] selftests: add missing include unistd
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel; +Cc: netdev, arnd, y2038
In-Reply-To: <20190202153454.7121-1-deepa.kernel@gmail.com>

Compiling rxtimestamp.c generates error messages due to
non-existing declaration for write() library call.

Add missing unistd.h include to provide the declaration and
silence the error.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
---
 tools/testing/selftests/networking/timestamping/rxtimestamp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/networking/timestamping/rxtimestamp.c b/tools/testing/selftests/networking/timestamping/rxtimestamp.c
index dd4162fc0419..6dee9e636a95 100644
--- a/tools/testing/selftests/networking/timestamping/rxtimestamp.c
+++ b/tools/testing/selftests/networking/timestamping/rxtimestamp.c
@@ -5,6 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #include <sys/time.h>
 #include <sys/socket.h>
-- 
2.17.1


^ permalink raw reply related

* [PATCH net-next v5 00/12] net: y2038-safe socket timestamps
From: Deepa Dinamani @ 2019-02-02 15:34 UTC (permalink / raw)
  To: davem, linux-kernel
  Cc: netdev, arnd, y2038, ccaulfie, chris, cluster-devel, deller,
	dhowells, fenghua.yu, isdn, jejb, linux-afs, linux-alpha,
	linux-arch, linux-ia64, linux-mips, linux-mips, linux-parisc,
	linuxppc-dev, linux-rdma, linux-s390, linux-xtensa, paulus, ralf,
	rth, schwidefsky, sparclinux, tglx, ubraun

The series introduces new socket timestamps that are
y2038 safe.

The time data types used for the existing socket timestamp
options: SO_TIMESTAMP, SO_TIMESTAMPNS and SO_TIMESTAMPING
are not y2038 safe. The series introduces SO_TIMESTAMP_NEW,
SO_TIMESTAMPNS_NEW and SO_TIMESTAMPING_NEW to replace these.
These new timestamps can be used on all architectures.

The alternative considered was to extend the sys_setsockopt()
by using the flags. We did not receive any strong opinions about
either of the approaches. Hence, this was chosen, as glibc folks
preferred this.

The series does not deal with updating the internal kernel socket
calls like rxrpc to make them y2038 safe. This will be dealt
with separately.

Note that the timestamps behavior already does not match the
man page specific behavior:
SIOCGSTAMP
    This ioctl should only be used if the socket option SO_TIMESTAMP
	is not set on the socket. Otherwise, it returns the timestamp of
	the last packet that was received while SO_TIMESTAMP was not set,
	or it fails if no such packet has been received,
	(i.e., ioctl(2) returns -1 with errno set to ENOENT).
	
The recommendation is to update the man page to remove the above statement.

The overview of the socket timestamp series is as below:
1. Delete asm specific socket.h when possible.
2. Support SO/SCM_TIMESTAMP* options only in userspace.
3. Rename current SO/SCM_TIMESTAMP* to SO/SCM_TIMESTAMP*_OLD.
3. Alter socket options so that SOCK_RCVTSTAMPNS does
   not rely on SOCK_RCVTSTAMP.
4. Introduce y2038 safe types for socket timestamp.
5. Introduce new y2038 safe socket options SO/SCM_TIMESTAMP*_NEW.
6. Intorduce new y2038 safe socket timeout options.

Changes since v4:
* Fixed the typo in calling sock_get_timeout()

Changes since v3:
* Rebased onto net-next and fixups as per review comments
* Merged the socket timeout series
* Integrated Arnd's patch to simplify compat handling of timeout syscalls

Changes since v2:
* Removed extra functions to reduce diff churn as per code review

Changes since v1:
* Dropped the change to disentangle sock flags
* Renamed sock_timeval to __kernel_sock_timeval
* Updated a few comments
* Added documentation changes

Arnd Bergmann (1):
  socket: move compat timeout handling into sock.c

Deepa Dinamani (11):
  selftests: add missing include unistd
  arch: Use asm-generic/socket.h when possible
  sockopt: Rename SO_TIMESTAMP* to SO_TIMESTAMP*_OLD
  arch: sparc: Override struct __kernel_old_timeval
  socket: Use old_timeval types for socket timestamps
  socket: Add struct __kernel_sock_timeval
  socket: Add SO_TIMESTAMP[NS]_NEW
  socket: Add SO_TIMESTAMPING_NEW
  socket: Update timestamping Documentation
  socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes
  sock: Add SO_RCVTIMEO_NEW and SO_SNDTIMEO_NEW

 Documentation/networking/timestamping.txt     |  43 ++++-
 arch/alpha/include/uapi/asm/socket.h          |  47 ++++--
 arch/ia64/include/uapi/asm/Kbuild             |   1 +
 arch/ia64/include/uapi/asm/socket.h           | 122 --------------
 arch/mips/include/uapi/asm/socket.h           |  47 ++++--
 arch/parisc/include/uapi/asm/socket.h         |  46 ++++--
 arch/powerpc/include/uapi/asm/socket.h        |   4 +-
 arch/s390/include/uapi/asm/Kbuild             |   1 +
 arch/s390/include/uapi/asm/socket.h           | 119 --------------
 arch/sparc/include/uapi/asm/posix_types.h     |  10 ++
 arch/sparc/include/uapi/asm/socket.h          |  49 ++++--
 arch/x86/include/uapi/asm/Kbuild              |   1 +
 arch/x86/include/uapi/asm/socket.h            |   1 -
 arch/xtensa/include/asm/Kbuild                |   1 +
 arch/xtensa/include/uapi/asm/Kbuild           |   1 +
 arch/xtensa/include/uapi/asm/socket.h         | 124 --------------
 drivers/isdn/mISDN/socket.c                   |   2 +-
 fs/dlm/lowcomms.c                             |   4 +-
 include/linux/skbuff.h                        |  24 ++-
 include/linux/socket.h                        |   8 +
 include/net/sock.h                            |   1 +
 include/uapi/asm-generic/socket.h             |  48 ++++--
 include/uapi/linux/errqueue.h                 |   4 +
 include/uapi/linux/time.h                     |   7 +
 net/bluetooth/hci_sock.c                      |   4 +-
 net/compat.c                                  |  78 +--------
 net/core/scm.c                                |  27 ++++
 net/core/sock.c                               | 151 +++++++++++++-----
 net/ipv4/tcp.c                                |  61 ++++---
 net/rds/af_rds.c                              |  10 +-
 net/rds/recv.c                                |  18 ++-
 net/rxrpc/local_object.c                      |   2 +-
 net/smc/af_smc.c                              |   3 +-
 net/socket.c                                  |  50 ++++--
 net/vmw_vsock/af_vsock.c                      |   4 +-
 .../networking/timestamping/rxtimestamp.c     |   1 +
 36 files changed, 541 insertions(+), 583 deletions(-)
 delete mode 100644 arch/ia64/include/uapi/asm/socket.h
 delete mode 100644 arch/s390/include/uapi/asm/socket.h
 delete mode 100644 arch/x86/include/uapi/asm/socket.h
 delete mode 100644 arch/xtensa/include/uapi/asm/socket.h

-- 
2.17.1

Cc: ccaulfie@redhat.com
Cc: chris@zankel.net
Cc: cluster-devel@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: dhowells@redhat.com
Cc: fenghua.yu@intel.com
Cc: isdn@linux-pingi.de
Cc: jejb@parisc-linux.org
Cc: linux-afs@lists.infradead.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: netdev@vger.kernel.org
Cc: paulus@samba.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: schwidefsky@de.ibm.com
Cc: sparclinux@vger.kernel.org
Cc: tglx@linutronix.de
Cc: ubraun@linux.ibm.com

^ permalink raw reply

* Re: [PATCH net-next v2 01/12] net: bridge: multicast: Propagate br_mc_disabled_update() return
From: Ido Schimmel @ 2019-02-02 15:47 UTC (permalink / raw)
  To: Florian Fainelli
  Cc: netdev@vger.kernel.org, andrew@lunn.ch, vivien.didelot@gmail.com,
	davem@davemloft.net, Jiri Pirko, ilias.apalodimas@linaro.org,
	ivan.khoronzhuk@linaro.org, roopa@cumulusnetworks.com,
	nikolay@cumulusnetworks.com, Petr Machata
In-Reply-To: <061dca81-a5ed-1498-060a-1a7a0e0a1116@gmail.com>

On Thu, Jan 31, 2019 at 05:19:25PM -0800, Florian Fainelli wrote:
> On 1/30/19 11:50 PM, Ido Schimmel wrote:
> > On Wed, Jan 30, 2019 at 05:00:57PM -0800, Florian Fainelli wrote:
> >> On 1/29/19 11:36 PM, Ido Schimmel wrote:
> >>> On Tue, Jan 29, 2019 at 04:55:37PM -0800, Florian Fainelli wrote:
> >>>> -static void br_mc_disabled_update(struct net_device *dev, bool value)
> >>>> +static int br_mc_disabled_update(struct net_device *dev, bool value)
> >>>>  {
> >>>>  	struct switchdev_attr attr = {
> >>>>  		.orig_dev = dev,
> >>>>  		.id = SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
> >>>> -		.flags = SWITCHDEV_F_DEFER,
> >>>> +		.flags = SWITCHDEV_F_DEFER | SWITCHDEV_F_SKIP_EOPNOTSUPP,
> >>>
> >>> Actually, since the operation is deferred I don't think the return value
> >>> from the driver is ever checked. Can you test it?
> >>
> >> You are right, you get a WARN() from switchdev_attr_port_set_now(), but
> >> this does not propagate back to the caller, so you can still create a
> >> bridge device and enslave a device successfully despite getting warnings
> >> on the console.
> >>
> >>>
> >>> I think it would be good to convert the attributes to use the switchdev
> >>> notifier like commit d17d9f5e5143 ("switchdev: Replace port obj add/del
> >>> SDO with a notification") did for objects. Then you can have your
> >>> listener veto the operation in the same context it is happening.
> >>
> >> Alright, working on it. Would you do that just for the attr_set, or for
> >> attr_get as well (to be symmetrical)?
> > 
> > Yes, then we can get rid of switchdev_ops completely.
> > 
> 
> OK, so here is what I have so far:
> 
> https://github.com/ffainelli/linux/pull/new/switchdev-attr
> 
> although I am seeing some invalid context operations with DSA that I am
> debugging. Does this look like the right way to go from your perspective?

That was quick :)

I think I owe you some explanation as to why I even came up with the
idea. But before that, I have another idea how to solve your immediate
problem.

You can employ a similar trick to the one used to set bridge port flags
in br_switchdev_set_port_flag(). Like br_mc_disabled_update() it is also
called from an atomic context, so in order to allow drivers to veto
unsupported flags we introduced a new switchdev attribute:
'SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT'

The attribute is only used in get operations and never deferred. You can
introduce 'SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED_SUPPORT' and use it
before invoking 'SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED'.

Regarding the whole notifier business and switchdev in general. Using
the device chain to propagate various bridge port attributes is wrong.
We saw it multiple times in the past already. First with routes that
were converted to use notifiers because the switch needs to offload the
entire routing table and not only routes whose nexthop device is a
switch port. Then with FDB entries and recently also with VLANs in a
VLAN-aware bridge. See merge commit 02e1dbe402de ("Merge branch
'Pass-extack-to-SWITCHDEV_PORT_OBJ_ADD'") for more details.

This is also true for switchdev attributes since we might want to
support toggling of bridge port flags on a VXLAN device in the future.
For example, to allow selective flooding. Others might have more use
cases.

I want to use the opportunity to pick your brain (and others') about
more issues I see with switchdev and maybe reach some agreement and form
a plan. Just to be clear, it is not related to your patchset.

The prepare-commit model probably made sense in the beginning, but a few
years later I think we know better. At least in mlxsw we have multiple
places where we perform all the work in the prepare phase simply because
that without doing all the work we don't have a way to guarantee that
the commit phase will succeed. I'm not aware of other instances of this
model in the networking code, so I wonder why we need it in switchdev
and if we can simply remove it and simplify things.

Another issue is that I believe we can completely remove the switchdev
infrastructure as it basically boils down to bridge-specific notifiers.
If you look at where switchdev is actually used in the networking stack
while excluding the obvious suspects you get this:

$ git grep -i -n -e 'switchdev' -- 'net/*' ':!net/bridge/*' ':!net/dsa/*' ':!net/switchdev/'                                                         
net/8021q/vlan_dev.c:34:#include <net/switchdev.h>
net/Kconfig:240:source "net/switchdev/Kconfig"
net/Makefile:81:ifneq ($(CONFIG_NET_SWITCHDEV),)
net/Makefile:82:obj-y                           += switchdev/
net/core/net-sysfs.c:15:#include <net/switchdev.h>
net/core/net-sysfs.c:504:               struct switchdev_attr attr = {
net/core/net-sysfs.c:506:                       .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,                                                                                     
net/core/net-sysfs.c:507:                       .flags = SWITCHDEV_F_NO_RECURSE,
net/core/net-sysfs.c:510:               ret = switchdev_port_attr_get(netdev, &attr);
net/core/rtnetlink.c:49:#include <net/switchdev.h>
net/core/rtnetlink.c:1150:      struct switchdev_attr attr = {
net/core/rtnetlink.c:1152:              .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
net/core/rtnetlink.c:1153:              .flags = SWITCHDEV_F_NO_RECURSE,
net/core/rtnetlink.c:1156:      err = switchdev_port_attr_get(dev, &attr);
net/core/skbuff.c:4925:#ifdef CONFIG_NET_SWITCHDEV
net/ipv4/ip_forward.c:72:#ifdef CONFIG_NET_SWITCHDEV
net/ipv4/ipmr.c:70:#include <net/switchdev.h>
net/ipv4/ipmr.c:841:    struct switchdev_attr attr = {
net/ipv4/ipmr.c:842:            .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
net/ipv4/ipmr.c:923:    if (!switchdev_port_attr_get(dev, &attr)) {
net/ipv4/ipmr.c:1802:#ifdef CONFIG_NET_SWITCHDEV
net/ipv6/ip6_output.c:381:#ifdef CONFIG_NET_SWITCHDEV

These are all instances related to the use of parent ID. Why not add a
new ndo that will allow various users to query the parent ID of a
netdev? bond and team can return an error if their slaves don't all have
the same parent ID.

You then end up with basic constructs like notifiers and ndo invocations
and not with complex objects and attributes that are propagated via the
device chain with a prepare-commit model.

WDYT?

> -- 
> Florian

^ permalink raw reply


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