Merge branch 'sg_nents' into rdma.git for-next

From Maor Gottlieb
====================

Fix the use of nents and orig_nents in the sg table append helpers. The
nents should be used by the DMA layer to store the number of DMA mapped
sges, the orig_nents is the number of CPU sges.

Since the sg append logic doesn't always create a SGL with exactly
orig_nents entries store a total_nents as well to allow the table to be
properly free'd and reorganize the freeing logic to share across all the
use cases.

====================

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

* 'sg_nents':
  RDMA: Use the sg_table directly and remove the opencoded version from umem
  lib/scatterlist: Fix wrong update of orig_nents
  lib/scatterlist: Provide a dedicated function to support table append

8 files changed, 49 insertions, 9 deletions

diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h
index c7135c9c37a5..b3b93710eff7 100644
--- a/include/uapi/linux/ethtool_netlink.h
+++ b/include/uapi/linux/ethtool_netlink.h
@@ -46,6 +46,7 @@ enum {
 	ETHTOOL_MSG_FEC_SET,
 	ETHTOOL_MSG_MODULE_EEPROM_GET,
 	ETHTOOL_MSG_STATS_GET,
+	ETHTOOL_MSG_PHC_VCLOCKS_GET,
 
 	/* add new constants above here */
 	__ETHTOOL_MSG_USER_CNT,
@@ -88,6 +89,7 @@ enum {
 	ETHTOOL_MSG_FEC_NTF,
 	ETHTOOL_MSG_MODULE_EEPROM_GET_REPLY,
 	ETHTOOL_MSG_STATS_GET_REPLY,
+	ETHTOOL_MSG_PHC_VCLOCKS_GET_REPLY,
 
 	/* add new constants above here */
 	__ETHTOOL_MSG_KERNEL_CNT,
@@ -440,6 +442,19 @@ enum {
 	ETHTOOL_A_TSINFO_MAX = (__ETHTOOL_A_TSINFO_CNT - 1)
 };
 
+/* PHC VCLOCKS */
+
+enum {
+	ETHTOOL_A_PHC_VCLOCKS_UNSPEC,
+	ETHTOOL_A_PHC_VCLOCKS_HEADER,			/* nest - _A_HEADER_* */
+	ETHTOOL_A_PHC_VCLOCKS_NUM,			/* u32 */
+	ETHTOOL_A_PHC_VCLOCKS_INDEX,			/* array, s32 */
+
+	/* add new constants above here */
+	__ETHTOOL_A_PHC_VCLOCKS_CNT,
+	ETHTOOL_A_PHC_VCLOCKS_MAX = (__ETHTOOL_A_PHC_VCLOCKS_CNT - 1)
+};
+
 /* CABLE TEST */
 
 enum {
diff --git a/include/uapi/linux/idxd.h b/include/uapi/linux/idxd.h
index e33997b4d750..edc346a77c91 100644
--- a/include/uapi/linux/idxd.h
+++ b/include/uapi/linux/idxd.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: LGPL-2.1 WITH Linux-syscall-note */
 /* Copyright(c) 2019 Intel Corporation. All rights rsvd. */
 #ifndef _USR_IDXD_H_
 #define _USR_IDXD_H_
diff --git a/include/uapi/linux/neighbour.h b/include/uapi/linux/neighbour.h
index dc8b72201f6c..00a60695fa53 100644
--- a/include/uapi/linux/neighbour.h
+++ b/include/uapi/linux/neighbour.h
@@ -66,8 +66,11 @@ enum {
 #define NUD_NONE	0x00
 
 /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
-   and make no address resolution or NUD.
-   NUD_PERMANENT also cannot be deleted by garbage collectors.
+ * and make no address resolution or NUD.
+ * NUD_PERMANENT also cannot be deleted by garbage collectors.
+ * When NTF_EXT_LEARNED is set for a bridge fdb entry the different cache entry
+ * states don't make sense and thus are ignored. Such entries don't age and
+ * can roam.
  */
 
 struct nda_cacheinfo {
diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h
index 7ed0b3d1c00a..fcc61c73a666 100644
--- a/include/uapi/linux/net_tstamp.h
+++ b/include/uapi/linux/net_tstamp.h
@@ -13,7 +13,7 @@
 #include <linux/types.h>
 #include <linux/socket.h>   /* for SO_TIMESTAMPING */
 
-/* SO_TIMESTAMPING gets an integer bit field comprised of these values */
+/* SO_TIMESTAMPING flags */
 enum {
 	SOF_TIMESTAMPING_TX_HARDWARE = (1<<0),
 	SOF_TIMESTAMPING_TX_SOFTWARE = (1<<1),
@@ -30,8 +30,9 @@ enum {
 	SOF_TIMESTAMPING_OPT_STATS = (1<<12),
 	SOF_TIMESTAMPING_OPT_PKTINFO = (1<<13),
 	SOF_TIMESTAMPING_OPT_TX_SWHW = (1<<14),
+	SOF_TIMESTAMPING_BIND_PHC = (1 << 15),
 
-	SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_OPT_TX_SWHW,
+	SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_BIND_PHC,
 	SOF_TIMESTAMPING_MASK = (SOF_TIMESTAMPING_LAST - 1) |
 				 SOF_TIMESTAMPING_LAST
 };
@@ -47,6 +48,18 @@ enum {
 					 SOF_TIMESTAMPING_TX_ACK)
 
 /**
+ * struct so_timestamping - SO_TIMESTAMPING parameter
+ *
+ * @flags:	SO_TIMESTAMPING flags
+ * @bind_phc:	Index of PTP virtual clock bound to sock. This is available
+ *		if flag SOF_TIMESTAMPING_BIND_PHC is set.
+ */
+struct so_timestamping {
+	int flags;
+	int bind_phc;
+};
+
+/**
  * struct hwtstamp_config - %SIOCGHWTSTAMP and %SIOCSHWTSTAMP parameter
  *
  * @flags:	no flags defined right now, must be zero for %SIOCSHWTSTAMP
diff --git a/include/uapi/linux/netfilter/nfnetlink_hook.h b/include/uapi/linux/netfilter/nfnetlink_hook.h
index 912ec60b26b0..bbcd285b22e1 100644
--- a/include/uapi/linux/netfilter/nfnetlink_hook.h
+++ b/include/uapi/linux/netfilter/nfnetlink_hook.h
@@ -43,6 +43,15 @@ enum nfnl_hook_chain_info_attributes {
 };
 #define NFNLA_HOOK_INFO_MAX (__NFNLA_HOOK_INFO_MAX - 1)
 
+enum nfnl_hook_chain_desc_attributes {
+	NFNLA_CHAIN_UNSPEC,
+	NFNLA_CHAIN_TABLE,
+	NFNLA_CHAIN_FAMILY,
+	NFNLA_CHAIN_NAME,
+	__NFNLA_CHAIN_MAX,
+};
+#define NFNLA_CHAIN_MAX (__NFNLA_CHAIN_MAX - 1)
+
 /**
  * enum nfnl_hook_chaintype - chain type
  *
diff --git a/include/uapi/linux/netfilter/nfnetlink_log.h b/include/uapi/linux/netfilter/nfnetlink_log.h
index 45c8d3b027e0..0af9c113d665 100644
--- a/include/uapi/linux/netfilter/nfnetlink_log.h
+++ b/include/uapi/linux/netfilter/nfnetlink_log.h
@@ -61,7 +61,7 @@ enum nfulnl_attr_type {
 	NFULA_HWTYPE,			/* hardware type */
 	NFULA_HWHEADER,			/* hardware header */
 	NFULA_HWLEN,			/* hardware header length */
-	NFULA_CT,                       /* nf_conntrack_netlink.h */
+	NFULA_CT,                       /* nfnetlink_conntrack.h */
 	NFULA_CT_INFO,                  /* enum ip_conntrack_info */
 	NFULA_VLAN,			/* nested attribute: packet vlan info */
 	NFULA_L2HDR,			/* full L2 header */
diff --git a/include/uapi/linux/netfilter/nfnetlink_queue.h b/include/uapi/linux/netfilter/nfnetlink_queue.h
index bcb2cb5d40b9..aed90c4df0c8 100644
--- a/include/uapi/linux/netfilter/nfnetlink_queue.h
+++ b/include/uapi/linux/netfilter/nfnetlink_queue.h
@@ -51,11 +51,11 @@ enum nfqnl_attr_type {
 	NFQA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
 	NFQA_HWADDR,			/* nfqnl_msg_packet_hw */
 	NFQA_PAYLOAD,			/* opaque data payload */
-	NFQA_CT,			/* nf_conntrack_netlink.h */
+	NFQA_CT,			/* nfnetlink_conntrack.h */
 	NFQA_CT_INFO,			/* enum ip_conntrack_info */
 	NFQA_CAP_LEN,			/* __u32 length of captured packet */
 	NFQA_SKB_INFO,			/* __u32 skb meta information */
-	NFQA_EXP,			/* nf_conntrack_netlink.h */
+	NFQA_EXP,			/* nfnetlink_conntrack.h */
 	NFQA_UID,			/* __u32 sk uid */
 	NFQA_GID,			/* __u32 sk gid */
 	NFQA_SECCTX,			/* security context string */
diff --git a/include/uapi/rdma/irdma-abi.h b/include/uapi/rdma/irdma-abi.h
index 26b638a7ad97..a7085e092d34 100644
--- a/include/uapi/rdma/irdma-abi.h
+++ b/include/uapi/rdma/irdma-abi.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
+/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB */
 /*
  * Copyright (c) 2006 - 2021 Intel Corporation.  All rights reserved.
  * Copyright (c) 2005 Topspin Communications.  All rights reserved.