Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
RDMA/nes: Fix MSS calculation on RDMA path
Fix the calculation of the MSS for RDMA connections: we need to
allow space in frames for a VLAN tag too.
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
authored by Chien Tung and committed by Roland Dreier f2b2b59b dba92d3b
+2
-1
drivers/infiniband/hw/nes/nes_cm.c
+2
-1
drivers/infiniband/hw/nes/nes_cm.c
···
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40
#include <linux/tcp.h>
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#include <linux/init.h>
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#include <linux/if_arp.h>
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+
#include <linux/if_vlan.h>
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#include <linux/notifier.h>
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#include <linux/net.h>
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#include <linux/types.h>
···
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ts = current_kernel_time();
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cm_node->tcp_cntxt.loc_seq_num = htonl(ts.tv_nsec);
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1074
cm_node->tcp_cntxt.mss = nesvnic->max_frame_size - sizeof(struct iphdr) -
1076
-
sizeof(struct tcphdr) - ETH_HLEN;
1075
+
sizeof(struct tcphdr) - ETH_HLEN - VLAN_HLEN;
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cm_node->tcp_cntxt.rcv_nxt = 0;
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/* get a unique session ID , add thread_id to an upcounter to handle race */
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atomic_inc(&cm_core->node_cnt);