- 06 Jun, 2015 7 commits
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David S. Miller authored
Hariprasad Shenai says: ==================== Free VI, flush sge ec and some other misc. fixes This patch series adds the following. Free VI interface during remove, flush SGE ec routine, rename t4_link_start to t4_link_l1cfg since it only does l1 configuration, set mac addr from when we can't contact firmware for debug purpose, set pcie completion timeout and use fw interface to access TP_PIO_XXX registers 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
The TP_PIO_{ADDR,DATA} registers are are in conflict with the firmware's use of these registers. Added a routine to access it through FW LDST cmd. Access all TP_PIO_{ADDR,DATA} register access through new routine if FW is alive. If firmware is dead, than fall back to indirect access. Signed-off-by:Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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Hariprasad Shenai authored
Set pci completion timeout to 0xd. Signed-off-by:
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Hariprasad Shenai authored
Grab the Adapter MAC Address out of the VPD and use it for the "debug" network interface when either we can't contact the firmware Signed-off-by:
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Hariprasad Shenai authored
t4_link_start() was completely misnamed. It does _not_ start up the link. It merely does the L1 Configuration for the link. The Link Up process is started automatically by the firmware when the number of enabled Virtual Interfaces on a port goes from 0 to 1. So renaming this routine to t4_link_l1cfg() for better documentation. Signed-off-by:
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Hariprasad Shenai authored
Add function to flush the sge ec context cache, and utilize this new function in the driver Signed-off-by:
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Hariprasad Shenai authored
Free VI interfaces in remove routine. If we don't do this then the firmware will never drop the physical link to the peer. Signed-off-by:
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- 04 Jun, 2015 33 commits
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David S. Miller authored
Or Gerlitz says: ==================== mlx5: Add Interface Step Sequence ID support ISSI (Interface Step Sequence ID) defines the step sequence ID of the interface between the driver to the firmware and is incremented by steps of one. ISSI is used to enable deprecating/modifying features, command interfaces and such, while maintaining compatibility. As the driver serves both ConnectIB (CIB) and ConnectX4, we carefully made sure that the IB functionality keeps running also on older CIB firmware releases that don't support ISSI. The Ethernet functionailty is available only on ConnectX4 where all firmware releases support the feature since the very basic ISSI level. So at this point no need for compatility code there. As done prior to this series, when the Ethernet functionlity is enabled, during the initialization flow, the core driver performs a query of the supported ISSIs using the QUERY_ISSI command, and then, if ISSI is supported, sets the actual issi value informing the firmware on which ISSI level to run, using SET_ISSI command. Previously, the IB driver wasn't ready to work on that mode, and hence building both the IB driver and the Ethernet functionality in the core driver were disallowed by Kconfigs, with this series, we allow users to enable them both. ==================== Signed-off-by: -
Haggai Abramonvsky authored
Ethernet functionality is only available when working in ISSI > 0 mode. Previously, the IB driver wasn't ready to work on that mode, and hence building both the IB driver and the Ethernet functionality in the core driver were disallowed by Kconfigs. Now, once we have all the pre-steps in place, we can remove this limitation. The last steps in the IB driver for getting that setup to work are: create dummy SRQ for the driver's use (until now we could use XRC_SRQ as SRQ and XRC_SRQ, after moving to ISSI > 0, we separate XRC SRQs from basic SRQs) and adapt the create QP function to be compatible with ISSI > 0. Signed-off-by:
Haggai Abramovsky <hagaya@mellanox.com> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
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Majd Dibbiny authored
Since we still don't have RoCE support in mlx5, avoid creating IB driver instance over Ethernet ports. Signed-off-by:
Majd Dibbiny <majd@mellanox.com> Signed-off-by:
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Majd Dibbiny authored
In ISSI > 0 mode, most of the MAD_IFC command features are deprecated, and can't be used. Therefore, when in that mode, we replace all of them with other commands that provide the required functionality. Signed-off-by:
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Majd Dibbiny authored
Add the following helpers: 1. mlx5_query_port_proto_oper -- queries the port speed port mask 2. mlx5_query_port_link_width_oper - queries the port link with bitmask 3. mlx5_query_port_vl_hw_cap - queries the Virtual Lanes supported on this port These helpers will be used from the IB driver when working in ISSI > 0 mode. Signed-off-by:
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Majd Dibbiny authored
Until now, mlx5_query_port_ptys always queried port number one. Added new argument in the function's prototype so we can also query the second port. This will be needed when thr helper will be invoked from the IB driver on non FPP (Function-Per-Port) devices. Signed-off-by:
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Majd Dibbiny authored
Extend the function prototypes for max and operational mtu to take the local port number. In the Ethernet driver is this hard coded to one, since ConnectX4 Ethernet devices are always function-per-port. The IB driver also serves older devices (ConnectIB) which isn't such, and hence the part can vary. Signed-off-by:
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Majd Dibbiny authored
Add two wrapper functions to the query adapter command: 1. mlx5_query_board_id -- replaces the old mlx5_cmd_query_adapter. 2. mlx5_core_query_vendor_id -- retrieves the vendor_id from the query_adapter command. Signed-off-by:
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Majd Dibbiny authored
Added the implementation for the following commands: 1. QUERY_HCA_VPORT_GID 2. QUERY_HCA_VPORT_PKEY 3. QUERY_HCA_VPORT_CONTEXT They will be needed when we move to work with ISSI > 0 in the IB driver too. Signed-off-by:
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Majd Dibbiny authored
Move the vport header file to be under include/linux/mlx5, such that the mlx5 IB can use it as well. Also add nic_ prefix to the vport NIC commands to differeniate between HCA vport commands and NIC vport commands. Signed-off-by:
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Haggai Abramonvsky authored
The determination of the supported ISSI versions should be conditioned on the returned mask, and not only on the return status of the query ISSI command, fix that. Signed-off-by:
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Haggai Abramonvsky authored
When working in ISSI > 0 mode, the model exposed by the device for XRCs and SRQs is different. XRCs use XRC SRQs and plain SRQs are based on RPM (Receive Memory Pool). Add helper functions to create, modify, query, and arm XRC SRQs and RMPs. Signed-off-by:
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Haggai Abramonvsky authored
Some core helper functions were named with mlx5_ only prefix, fix that to mlx5_core_ so we're aligned with the overall scheme used for core services. Signed-off-by:
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Amir Vadai authored
The patch afb736e9: "net/mlx5: Ethernet resource handling files" from May 28, 2015, leads to the following static checker warning: drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c:726 mlx5e_create_main_flow_table() error: potential null dereference 'g'. (kcalloc returns null) Fixes: afb736e9 ("net/mlx5: Ethernet resource handling files") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Amir Vadai <amirv@mellanox.com> Signed-off-by:
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David S. Miller authored
Tom Herbert says: ==================== net: Increase inputs to flow_keys hashing This patch set adds new fields to the flow_keys structure and hashes over these fields to get a better flow hash. In particular, these patches now include hashing over the full IPv6 addresses in order to defend against address spoofing that always results in the same hash. The new input also includes the Ethertype, L4 protocol, VLAN, flow label, GRE keyid, and MPLS entropy label. In order to increase hash inputs, we switch to using jhash2 which operates an an array of u32's. jhash2 operates on multiples of three words. The data in the hash is constructed for that, and there are are two variants for IPv4 and Ipv6 addressing. For IPv4 addresses, jhash is performed over six u32's and for IPv6 it is done over twelve. flow_keys can store either IPv4 or IPv6 addresses (addr_proto field is a selector). ipv6_addr_hash is no longer used to convert addresses for setting in flow table. For legacy uses of flow keys outside of flow_dissector the flow_get_u32_src and flow_get_u32_dst functions have been added to get u32 representation representations of addresses in flow_keys. For flow lables we also eliminate the short circuit in flow_dissector for non-zero flow label. The flow label is now considered additional input to ports. Testing: Ran netperf TCP_RR for 200 flows using IPv4 and IPv6 comparing before the patches and with the patches. Did not detect any performance degradation. v2: - Took out MPLS entropy label. Will add this later. v3: - Ensure hash start offset is a four byte boundary. Add BUG_BUILD_ON to check for this. - Fixes sparse error in GRE to get entropy from keyid. v4: - Rebase to Jiri changes to generalize flow dissection - Support TIPC as its own address - Bring back MPLS entropy label dissection - Remove FLOW_DISSECTOR_KEY_IPV6_HASH_ADDRS v5: - Minor fixes from feedback v6: - Cleanup and sparse issue with flow label - Change keyid to returned by flow_dissector to be __be32 ==================== Signed-off-by: -
Tom Herbert authored
In flow dissector if an MPLS header contains an entropy label this is saved in the new keyid field of flow_keys. The entropy label is then represented in the flow hash function input. Signed-off-by:
Tom Herbert <tom@herbertland.com> Signed-off-by:
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Tom Herbert authored
In flow dissector if a GRE header contains a keyid this is saved in the new keyid field of flow_keys. The GRE keyid is then represented in the flow hash function input. Signed-off-by:
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Tom Herbert authored
In flow_dissector set the flow label in flow_keys for IPv6. This also removes the shortcircuiting of flow dissection when a non-zero label is present, the flow label can be considered to provide additional entropy for a hash. Signed-off-by:
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Tom Herbert authored
In flow_dissector set vlan_id in flow_keys when VLAN is found. Signed-off-by:
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Tom Herbert authored
We don't need to return the IPv6 address hash as part of flow keys. In general, using the IPv6 address hash is risky in a hash value since the underlying use of xor provides no entropy. If someone really needs the hash value they can get it from the full IPv6 addresses in flow keys (e.g. from flow_get_u32_src). Signed-off-by:
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Tom Herbert authored
Add a new flow key for TIPC addresses. Signed-off-by:
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Tom Herbert authored
This patch adds full IPv6 addresses into flow_keys and uses them as input to the flow hash function. The implementation supports either IPv4 or IPv6 addresses in a union, and selector is used to determine how may words to input to jhash2. We also add flow_get_u32_dst and flow_get_u32_src functions which are used to get a u32 representation of the source and destination addresses. For IPv6, ipv6_addr_hash is called. These functions retain getting the legacy values of src and dst in flow_keys. With this patch, Ethertype and IP protocol are now included in the flow hash input. Signed-off-by:
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Tom Herbert authored
This patch changes flow hashing to use jhash2 over the flow_keys structure instead just doing jhash_3words over src, dst, and ports. This method will allow us take more input into the hashing function so that we can include full IPv6 addresses, VLAN, flow labels etc. without needing to resort to xor'ing which makes for a poor hash. Acked-by:
Jiri Pirko <jiri@resnulli.us> Signed-off-by:
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Tom Herbert authored
key_basic is set twice in __skb_flow_dissect which seems unnecessary. Remove second one. Acked-by:
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Tom Herbert authored
Add uapi define for MPLS over IP. Acked-by:
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Tom Herbert authored
Do break when we see routing flag or a non-zero version number in GRE header. Acked-by:
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Shailendra Verma authored
According to <stdbool.h> false is always '0' and Static variables are initialised to 0 by GCC. Signed-off-by:
Shailendra Verma <shailendra.capricorn@gmail.com> Signed-off-by:
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Alexei Starovoitov authored
fix build error: net/core/filter.c: In function 'bpf_clone_redirect': net/core/filter.c:1429:18: error: 'struct sk_buff' has no member named 'tc_verd' if (G_TC_AT(skb2->tc_verd) & AT_INGRESS) Fixes: 3896d655 ("bpf: introduce bpf_clone_redirect() helper") Reported-by:
Or Gerlitz <gerlitz.or@gmail.com> Reported-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
Alexei Starovoitov <ast@plumgrid.com> Signed-off-by:
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Wei Liu authored
Xen virtual network driver has higher latency than a physical NIC. Having only 128K as limit for TSQ introduced 30% regression in guest throughput. This patch raises the limit to 256K. This reduces the regression to 8%. This buys us more time to work out a proper solution in the long run. Signed-off-by:
Wei Liu <wei.liu2@citrix.com> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Eric Dumazet authored
tcp_v4_rcv() checks the following before calling tcp_v4_do_rcv(): if (th->doff < sizeof(struct tcphdr) / 4) goto bad_packet; if (!pskb_may_pull(skb, th->doff * 4)) goto discard_it; So following check in tcp_v4_do_rcv() is redundant and "goto csum_err;" is wrong anyway. if (skb->len < tcp_hdrlen(skb) || ...) goto csum_err; A second check can be removed after no_tcp_socket label for same reason. Same tests can be removed in tcp_v6_do_rcv() Note : short tcp frames are not properly accounted in tcpInErrs MIB, because pskb_may_pull() failure simply drops incoming skb, we might fix this in a separate patch. Signed-off-by: -
David S. Miller authored
Scott Feldman says: ==================== switchdev: documentation updates Update the switchdev documentation to clarify that for IPV4 FIB object, the add op is used for both adding and modifying the FIB entry on the device. I found a few other white-space and grammer issues to fix, and to clarify the static FDB ops. ==================== Signed-off-by: -
Scott Feldman authored
Clarify in documentation and code that IPV4 FIB add operation is used for both adding a new FIB entry to the device and for modifying an existing FIB entry on the device. Also, remove left-over references to ipv4_fib ops and replace with details on SWITCHDEV_PORT_IPV4_FIB object. Signed-off-by:
Scott Feldman <sfeldma@gmail.com> Acked-by:
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Scott Feldman authored
Signed-off-by:
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