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Message-Id: <20170703062830.30361-12-leon@kernel.org>
Date: Mon, 3 Jul 2017 09:28:14 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Doug Ledford <dledford@...hat.com>
Cc: linux-rdma@...r.kernel.org,
Stephen Hemminger <stephen@...workplumber.org>,
Ariel Almog <ariela@...lanox.com>,
Linux Netdev <netdev@...r.kernel.org>,
Leon Romanovsky <leonro@...lanox.com>
Subject: [PATCH rdma-next V2 11/27] RDMA/netlink: Convert LS to doit callback
From: Leon Romanovsky <leonro@...lanox.com>
RDMA_NL_LS protocol is actually does not dump anything,
but sets data and it should be handled by doit callback.
This patch actually converts RDMA_NL_LS to doit callback, while
preserving IWCM and RDMA_CM flows through netlink_dump_start().
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
Reviewed-by: Steve Wise <swise@...ngridcomputing.com>
---
drivers/infiniband/core/addr.c | 5 ++---
drivers/infiniband/core/core_priv.h | 9 ++++++---
drivers/infiniband/core/device.c | 6 +++---
drivers/infiniband/core/netlink.c | 28 ++++++++++------------------
drivers/infiniband/core/sa_query.c | 8 ++++----
5 files changed, 25 insertions(+), 31 deletions(-)
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index 2cc23a26ce4f..0b283029bc61 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -129,10 +129,9 @@ static void ib_nl_process_good_ip_rsep(const struct nlmsghdr *nlh)
}
int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
- struct netlink_callback *cb)
+ struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack)
{
- const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh;
-
if ((nlh->nlmsg_flags & NLM_F_REQUEST) ||
!(NETLINK_CB(skb).sk))
return -EPERM;
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
index 8733c26258b2..03e39ccaae2a 100644
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -188,11 +188,14 @@ void rdma_nl_exit(void);
int ibnl_chk_listeners(unsigned int group);
int ib_nl_handle_resolve_resp(struct sk_buff *skb,
- struct netlink_callback *cb);
+ struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack);
int ib_nl_handle_set_timeout(struct sk_buff *skb,
- struct netlink_callback *cb);
+ struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack);
int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
- struct netlink_callback *cb);
+ struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack);
struct ib_device *__ib_device_get_by_index(u32 ifindex);
/* RDMA device netlink */
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 7ff65d766d86..4aaf51db528a 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -1070,15 +1070,15 @@ EXPORT_SYMBOL(ib_get_net_dev_by_params);
static const struct rdma_nl_cbs ibnl_ls_cb_table[] = {
[RDMA_NL_LS_OP_RESOLVE] = {
- .dump = ib_nl_handle_resolve_resp,
+ .doit = ib_nl_handle_resolve_resp,
.flags = RDMA_NL_ADMIN_PERM,
},
[RDMA_NL_LS_OP_SET_TIMEOUT] = {
- .dump = ib_nl_handle_set_timeout,
+ .doit = ib_nl_handle_set_timeout,
.flags = RDMA_NL_ADMIN_PERM,
},
[RDMA_NL_LS_OP_IP_RESOLVE] = {
- .dump = ib_nl_handle_ip_res_resp,
+ .doit = ib_nl_handle_ip_res_resp,
.flags = RDMA_NL_ADMIN_PERM,
},
};
diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index 6c3bb2693afa..3efa161bf4a6 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -155,38 +155,30 @@ static int rdma_nl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
int type = nlh->nlmsg_type;
unsigned int index = RDMA_NL_GET_CLIENT(type);
unsigned int op = RDMA_NL_GET_OP(type);
- struct netlink_callback cb = {};
- struct netlink_dump_control c = {};
const struct rdma_nl_cbs *cb_table;
- int ret;
if (!is_nl_valid(index, op))
return -EINVAL;
- cb_table = rdma_nl_types[type].cb_table;
+ cb_table = rdma_nl_types[index].cb_table;
if ((cb_table[op].flags & RDMA_NL_ADMIN_PERM) &&
!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;
- /*
- * For response or local service set_timeout request,
- * there is no need to use netlink_dump_start.
- */
- if (!(nlh->nlmsg_flags & NLM_F_REQUEST) ||
- (index == RDMA_NL_LS && op == RDMA_NL_LS_OP_SET_TIMEOUT)) {
- cb.skb = skb;
- cb.nlh = nlh;
- cb.dump = cb_table[op].dump;
- return cb.dump(skb, &cb);
- } else {
- c.dump = cb_table[op].dump;
+ /* FIXME: Convert IWCM to properly handle doit callbacks */
+ if ((nlh->nlmsg_flags & NLM_F_DUMP) || index == RDMA_NL_RDMA_CM ||
+ index == RDMA_NL_IWCM) {
+ struct netlink_dump_control c = {
+ .dump = cb_table[op].dump,
+ };
return netlink_dump_start(nls, skb, nlh, &c);
}
+
if (cb_table[op].doit)
- ret = cb_table[op].doit(skb, nlh, extack);
- return ret;
+ return cb_table[op].doit(skb, nlh, extack);
+ return 0;
}
/*
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 27535970a2b7..88f06f91741f 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -1022,9 +1022,9 @@ static void ib_nl_request_timeout(struct work_struct *work)
}
int ib_nl_handle_set_timeout(struct sk_buff *skb,
- struct netlink_callback *cb)
+ struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack)
{
- const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh;
int timeout, delta, abs_delta;
const struct nlattr *attr;
unsigned long flags;
@@ -1098,9 +1098,9 @@ static inline int ib_nl_is_good_resolve_resp(const struct nlmsghdr *nlh)
}
int ib_nl_handle_resolve_resp(struct sk_buff *skb,
- struct netlink_callback *cb)
+ struct nlmsghdr *nlh,
+ struct netlink_ext_ack *extack)
{
- const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh;
unsigned long flags;
struct ib_sa_query *query;
struct ib_mad_send_buf *send_buf;
--
2.13.2
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