- 04 May, 2016 34 commits
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Arnd Bergmann authored
The ipv6 gre implementation was cleaned up to share more code with the ipv4 version, but it can be enabled even when NET_IPGRE_DEMUX is disabled, resulting in a link error: net/built-in.o: In function `gre_rcv': :(.text+0x17f5d0): undefined reference to `gre_parse_header' ERROR: "gre_parse_header" [net/ipv6/ip6_gre.ko] undefined! This adds a Kconfig dependency to prevent that now invalid configuration. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 308edfdf ("gre6: Cleanup GREv6 receive path, call common GRE functions") Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Jiri Benc says: ==================== gre: receive also TEB packets for lwtunnels NOTE: this patchset needs net merged to net-next. This allows lwtunnel users to get also packets with ETH_P_TEB protocol specified in GRE header through an ipgre interface. There's really nothing special about these packets in the case of lwtunnels - it's just an inner protocol like any other. The only complications stem from keeping compatibility with other uses of GRE. This will be used by openvswitch to support eth_push and eth_pop actions. I'd also like to see tc support for lwtunnels (this feature included) in the future. The first patch is not directly related and can be submitted standalone if needed. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiri Benc authored
For ipgre interfaces in collect metadata mode, receive also traffic with encapsulated Ethernet headers. The lwtunnel users are supposed to sort this out correctly. This allows to have mixed Ethernet + L3-only traffic on the same lwtunnel interface. This is the same way as VXLAN-GPE behaves. To keep backwards compatibility and prevent any surprises, gretap interfaces have priority in receiving packets with Ethernet headers. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiri Benc authored
This will allow to make the pull dependent on the tunnel type. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiri Benc authored
The call to gre_parse_header is either followed by iptunnel_pull_header, or in the case of ICMP error path, the actual header is not accessed at all. In the first case, iptunnel_pull_header will call pskb_may_pull anyway and it's pointless to do it twice. The only difference is what call will fail with what error code but the net effect is still the same in all call sites. In the second case, pskb_may_pull is pointless, as skb->data is at the outer IP header and not at the GRE header. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Saeed Mahameed says: ==================== Mellanox 100G ethernet SRIOV Upgrades This series introduces new features and upgrades for mlx5 etherenet SRIOV, while the first patch provides a bug fixes for a compilation issue introduced buy the previous aRFS series for when CONFIG_RFS_ACCEL=y and CONFIG_MLX5_CORE_EN=n. Changes from V0: - 1st patch: Don't add a new Kconfig flag. Instead, compile out en_arfs.c \ contents when CONFIG_RFS_ACCEL=n SRIOV upgrades: - Use synchronize_irq instead of the vport events spin_lock - Fix memory leak in error flow - Added full VST support - Spoofcheck support - Trusted VF promiscuous and allmulti support VST and Spoofcheck in details: - Adding Low level firmware commands support for creating ACLs (Access Control Lists) Flow tables. ACLs are regular flow tables with the only exception that they are bound to a specific e-Switch vport (VF) and they can be one of two types > egress ACL: filters traffic going from e-Switch to VF. > ingress ACL: filters traffic going from VF to e-Switch. - Ingress/Egress ACLs (per vport) for VF VST mode filtering. - Ingress/Egress ACLs (per vport) for VF spoofcheck filtering. - Ingress/Egress ACLs (per vport) configuration: > Created only when at least one of (VST, spoofcheck) is configured. > if (!spoofchk && !vst) allow all traffic. i.e. no ACLs. > if (spoofchk && vst) allow only untagged traffic with smac=original mac \ sent from the VF. > if (spoofchk && !vst) allow only traffic with smac=original mac sent from \ the VF. > if (!spoofchk && vst) allow only untagged traffic. Trusted VF promiscuous and allmulti support in details: - Added two flow groups for allmulti and promisc VFs to the e-Switch FDB table > Allmulti group: One rule that forwards any mcast traffic coming from either uplink or VFs/PF vports. > Promisc group: One rule that forwards all unmatched traffic coming from \ uplink. - Add vport context change event handling for promisc and allmulti If VF is trusted respect the request and: > if allmulti request: add the vport to the allmulti group. and to all other L2 mcast address in the FDB table. > if promisc request: add the vport to the promisc group. > Note: A promisc VF can only see traffic that was not explicitly matched to or requested by any other VF. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
- Add support to configure trusted vf attribute through trust_vf_ndo. - Upon VF trust setting change we update vport context to refresh allmulti/promisc or any trusted vf attributes that we didn't trust the VF for before. - Lock the eswitch state lock on vport event in order to synchronise the vport context updates , this will prevent contention with vport trust setting change which will trigger vport mac list update. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Add promisc_change as a trigger to vport context change event. Add set vport promisc/allmulti functions to add vport to promiscuous flowtable rules. Upon promisc/allmulti rx mode vf request add the vport to the relevant promiscuous group (Allmulti/Promisc group) so the relevant traffic will be forwarded to it. Upon allmulti vf request add the vport to each existing multicast fdb rule. Upon adding/removing mcast address from a vport, update all other allmulti vports. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Add promiscuous and allmulti steering groups in FDB table. Besides the full match L2 steering rules group, we added two more groups to catch the "miss" rules traffic: * Allmulti group: One rule that forwards any mcast traffic coming from either uplink or VFs/PF vports * Promisc group: One rule that forwards all unmatched traffic coming from uplink. Needed for downstream privileged VF promisc and allmulti support. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Remove the usage of explicit cleanup function and use existing vport change handler. Calling vport change handler while vport is disabled will cleanup the vport resources. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Enable ingress/egress ACL tables only when we need to configure ACL rules. Disable ingress/egress ACL tables once all ACL rules are removed. All VF outgoing/incoming traffic need to go through the ingress/egress ACL tables. Adding/Removing these tables on demand will save unnecessary hops in the flow steering when the ACL tables are empty. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Configure ingress and egress vport ACL rules according to spoofchk admin parameters. Ingress ACL flow table rules: if (!spoofchk && !vst) allow all traffic. else : 1) one of the following rules : * if (spoofchk && vst) allow only untagged traffic with smac=original mac sent from the VF. * if (spoofchk && !vst) allow only traffic with smac=original mac sent from the VF. * if (!spoofchk && vst) allow only untagged traffic. 2) drop all traffic that didn't hit #1. Add support for set vf spoofchk ndo. Add non zero mac validation in case of spoofchk to set mac ndo: when setting new mac we need to validate that the new mac is not zero while the spoofchk is on because it is illegal combination. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Configure ingress and egress vport ACL rules according to vlan and qos admin parameters. Ingress ACL flow table rules: 1) drop any tagged packet sent from the VF 2) allow other traffic (default behavior) Egress ACL flow table rules: 1) allow only tagged traffic with vlan_tag=vst_vid. 2) drop other traffic. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Create egress/ingress ACLs per VF vport at vport enable. Ingress ACL: - one flow group to drop all tagged traffic in VST mode. Egress ACL: - one flow group that allows only untagged traffic with smac that is equals to the original mac (anti-spoofing). - one flow group that allows only untagged traffic. - one flow group that allows only smac that is equals to the original mac (anti-spoofing). (note: only one of the above group has active rule) - star rule will be used to drop all other traffic. By default no rules are generated, unless VST is explicitly requested. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Fix memory leak in case query nic vport command failed. Fixes: 81848731 ('net/mlx5: E-Switch, Add SR-IOV (FDB) support') Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Vport spin lock can be replaced with synchronize_irq() in the right place, this will remove the need of locking inside irq context. Locking in esw_enable_vport is not required since vport events are yet to be enabled, and at esw_disable_vport it is sufficient to synchronize_irq() to guarantee no further vport events handlers will be scheduled. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mohamad Haj Yahia authored
Update the relevant flow steering device structs and commands to support vport. Update the flow steering core API to receive vport number. Add ingress and egress ACL flow table name spaces. Add ACL flow table support: * ACL (Access Control List) flow table is a table that contains only allow/drop steering rules. * We have two types of ACL flow tables - ingress and egress. * ACLs handle traffic sent from/to E-Switch FDB table, Ingress refers to traffic sent from Vport to E-Switch and Egress refers to traffic sent from E-Switch to vport. * Ingress ACL flow table allow/drop rules is checked against traffic sent from VF. * Egress ACL flow table allow/drop rules is checked against traffic sent to VF. Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Maor Gottlieb authored
en_arfs.o should be compiled only if both CONFIG_MLX5_CORE_EN and CONFIG_RFS_ACCEL are enabled. en_arfs calls to rps_may_expire_flow which is compiled only if CONFIG_RFS_ACCEL is defined. Move en_arfs.o compilation dependency to be under CONFIG_MLX5_CORE_EN and wrap the en_arfs.c content with ifdef of CONFIG_RFS_ACCEL. Fixes: 1cabe6b0 ('net/mlx5e: Create aRFS flow tables') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reported-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Hariprasad Shenai says: ==================== cxgb4: mbox enhancements for cxgb4 This patch series checks for firmware errors when we are waiting for mbox response in a loop and breaks out. When negative timeout is passed to mailbox code, don't sleep. Negative timeout is passed only from interrupt context. This patch series has been created against net-next tree and includes patches on cxgb4 driver. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Hariprasad Shenai authored
Check for firmware errors in the mailbox command loop and report them differently rather than simply timing out when the firmware goes belly up. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Hariprasad Shenai authored
When link goes down, from the interrupt handler DCB priority for the Tx queues needs to be unset. We issue mbox command to unset the Tx queue priority with negative timeout. In t4_wr_mbox_meat_timeout() do not sleep when negative timeout is passed, since it is called from interrupt context. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Christian Lamparter authored
This patch adds the phy initialization code for Qualcomm Atheros AR8035 phy. This configuration is found in the Cisco Meraki MR24. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Alexander Duyck says: ==================== Fix Tunnel features and enable GSO partial for several drivers This patch series is meant to allow us to get the best performance possible for Mellanox ConnectX-3/4 and Broadcom NetXtreme-C/E adapters in terms of VXLAN and GRE tunnels. The first 3 patches address issues I found in regards to GSO_PARTIAL and TSO_MANGLEID. The next 4 patches go through and enable GSO_PARTIAL for VXLAN tunnels that have an outer checksum enabled, and then enable IPv6 support where I can. One outstanding issue is that I wasn't able to get offloads working with outer IPv6 headers on mlx4. However that wasn't a feature that was enabled before so it isn't technically a regression, however I believe Engineers from Mellanox said they would look into it since they thought it should be supported. The last patch enables GSO_PARTIAL for VXLAN and GRE tunnels on the bnxt driver. One piece of feedback I received on the patch was that the hardware has globally set IPv6 UDP tunnels to always have the checksum field computed. I plan to work with Broadcom to get that addressed so that we only populate the checksum field if it was requested by the network stack. v2: Rebased patches off of latest changes to the mlx4/mlx5 drivers. Added bnxt driver patch as I received feedback on the RFC. v3: Moved 2 patches into series for net as they were generic fixes. Added patch to disable GSO partial if frame is less than 2x size of MSS There are outstanding issues as called out above that need to be addressed, however they were present before these patches so it isn't as if they introduce a regression. In addition gains can be easily seen so there should be no issue with applying the driver patches while the IPv6 mlx4_en and bnxt issues are being researched. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
This patch assumes that the bnxt hardware will ignore existing IPv4/v6 header fields for length and checksum as well as the length and checksum fields for outer UDP and GRE headers. I have been told by Michael Chan that this is working. Though this might be somewhat redundant for IPv6 as they are forcing the checksum to be computed for all IPv6 frames that are offloaded. A follow-up patch may be necessary in order to fix this as it is essentially mangling the outer IPv6 headers to add a checksum where none was requested. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
The mlx5 driver exposes support for TSO6 but not IPv6 csum for hardware encapsulated tunnels. This leads to issues as it triggers warnings in skb_checksum_help as it ends up being called as we report supporting the segmentation but not the checksumming for IPv6 frames. This patch corrects that and drops 2 features that don't actually need to be supported in hw_enc_features since they are Rx features and don't actually impact anything by being present in hw_enc_features. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
This patch assumes that the mlx5 hardware will ignore existing IPv4/v6 header fields for length and checksum as well as the length and checksum fields for outer UDP headers. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
>From what I can tell the ConnectX-3 will support an inner IPv6 checksum and segmentation offload, however it cannot support outer IPv6 headers. This assumption is based on the fact that I could see the checksum being offloaded for inner header on IPv4 tunnels, but not on IPv6 tunnels. For this reason I am adding the feature to the hw_enc_features and adding an extra check to the features_check call that will disable GSO and checksum offload in the case that the encapsulated frame has an outer IP version of that is not 4. The check in mlx4_en_features_check could be removed if at some point in the future a fix is found that allows the hardware to offload segmentation/checksum on tunnels with an outer IPv6 header. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
This patch assumes that the mlx4 hardware will ignore existing IPv4/v6 header fields for length and checksum as well as the length and checksum fields for outer UDP headers. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
This change makes it so that we will strip the TSO_MANGLEID bit if TSO is not present. This way we will also handle ECN correctly of TSO is not present. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
This patch addresses a possible issue that can occur if we get into any odd corner cases where we support TSO for a given protocol but not the checksum or scatter-gather offload. There are few drivers floating around that setup their tunnels this way and by enforcing the checksum piece we can avoid mangling any frames. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
In the event that the number of partial segments is equal to 1 we don't really need to perform partial segmentation offload. As such we should skip multiplying the MSS and instead just clear the partial_segs value since it will not provide any gain to advertise the frame as being GSO when it is a single frame. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiri Benc authored
It's easier for gre_parse_header to return the header length instead of filing it into a parameter. That way, the callers that don't care about the header length can just check whether the returned value is lower than zero. In gre_err, the tunnel header must not be pulled. See commit b7f8fe25 ("gre: do not pull header in ICMP error processing") for details. This patch reduces the conflict between the mentioned commit and commit 95f5c64c ("gre: Move utility functions to common headers"). Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Under high rx pressure, it is possible tcp_sendmsg() never has a chance to allocate an skb and loop forever as sk_flush_backlog() would always return true. Fix this by calling sk_flush_backlog() only if one skb had been allocated and filled before last backlog check. Fixes: d41a69f1 ("tcp: make tcp_sendmsg() aware of socket backlog") Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Conflicts: net/ipv4/ip_gre.c Minor conflicts between tunnel bug fixes in net and ipv6 tunnel cleanups in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
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- 03 May, 2016 6 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: "Some straggler bug fixes: 1) Batman-adv DAT must consider VLAN IDs when choosing candidate nodes, from Antonio Quartulli. 2) Fix botched reference counting of vlan objects and neigh nodes in batman-adv, from Sven Eckelmann. 3) netem can crash when it sees GSO packets, the fix is to segment then upon ->enqueue. Fix from Neil Horman with help from Eric Dumazet. 4) Fix VXLAN dependencies in mlx5 driver Kconfig, from Matthew Finlay. 5) Handle VXLAN ops outside of rcu lock, via a workqueue, in mlx5, since it can sleep. Fix also from Matthew Finlay. 6) Check mdiobus_scan() return values properly in pxa168_eth and macb drivers. From Sergei Shtylyov. 7) If the netdevice doesn't support checksumming, disable segmentation. From Alexandery Duyck. 8) Fix races between RDS tcp accept and sending, from Sowmini Varadhan. 9) In macb driver, probe MDIO bus before we register the netdev, otherwise we can try to open the device before it is really ready for that. Fix from Florian Fainelli. 10) Netlink attribute size for ILA "tunnels" not calculated properly, fix from Nicolas Dichtel" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: ipv6/ila: fix nlsize calculation for lwtunnel net: macb: Probe MDIO bus before registering netdev RDS: TCP: Synchronize accept() and connect() paths on t_conn_lock. RDS:TCP: Synchronize rds_tcp_accept_one with rds_send_xmit when resetting t_sock vxlan: Add checksum check to the features check function net: Disable segmentation if checksumming is not supported net: mvneta: Remove superfluous SMP function call macb: fix mdiobus_scan() error check pxa168_eth: fix mdiobus_scan() error check net/mlx5e: Use workqueue for vxlan ops net/mlx5e: Implement a mlx5e workqueue net/mlx5: Kconfig: Fix MLX5_EN/VXLAN build issue net/mlx5: Unmap only the relevant IO memory mapping netem: Segment GSO packets on enqueue batman-adv: Fix reference counting of hardif_neigh_node object for neigh_node batman-adv: Fix reference counting of vlan object for tt_local_entry batman-adv: B.A.T.M.A.N V - make sure iface is reactivated upon NETDEV_UP event batman-adv: fix DAT candidate selection (must use vid)
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuseLinus Torvalds authored
Pull fuse fixes from Miklos Szeredi: "Fix a regression and update the MAINTAINERS entry for fuse" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: update mailing list in MAINTAINERS fuse: Fix return value from fuse_get_user_pages()
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Nicolas Dichtel authored
The handler 'ila_fill_encap_info' adds one attribute: ILA_ATTR_LOCATOR. Fixes: 65d7ab8d ("net: Identifier Locator Addressing module") CC: Tom Herbert <tom@herbertland.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Wei Wang authored
In the sendmsg function of UDP, raw, ICMP and l2tp sockets, we use local variables like hlimits, tclass, opt and dontfrag and pass them to corresponding functions like ip6_make_skb, ip6_append_data and xxx_push_pending_frames. This is not a good practice and makes it hard to add new parameters. This fix introduces a new struct ipcm6_cookie similar to ipcm_cookie in ipv4 and include the above mentioned variables. And we only pass the pointer to this structure to corresponding functions. This makes it easier to add new parameters in the future and makes the function cleaner. Signed-off-by: Wei Wang <weiwan@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Fainelli authored
The current sequence makes us register for a network device prior to registering and probing the MDIO bus which could lead to some unwanted consequences, like a thread of execution calling into ndo_open before register_netdev() returns, while the MDIO bus is not ready yet. Rework the sequence to register for the MDIO bus, and therefore attach to a PHY prior to calling register_netdev(), which implies reworking the error path a bit. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Sowmini Varadhan says: ==================== RDS: TCP: sychronization during connection startup This patch series ensures that the passive (accept) side of the TCP connection used for RDS-TCP is correctly synchronized with any concurrent active (connect) attempts for a given pair of peers. Patch 1 in the series makes sure that the t_sock in struct rds_tcp_connection is only reset after any threads in rds_tcp_xmit have completed (otherwise a null-ptr deref may be encountered). Patch 2 synchronizes rds_tcp_accept_one() with the rds_tcp*connect() path. v2: review comments from Santosh Shilimkar, other spelling corrections ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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