- 01 Nov, 2016 38 commits
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David S. Miller authored
Parthasarathy Bhuvaragan says: ==================== tipc: socket layer improvements The following issues with the current socket layer hinders socket diagnostics implementation, which led to this patch series. 1. tipc socket state is derived from multiple variables like sock->state, tsk->probing_state and tsk->connected. This style forces us to export multiple attributes to the user space, which has to be backward compatible. 2. Abuse of sock->state cannot be exported to user-space without requiring tipc specific hacks in the user-space. - For connection less (CL) sockets sock->state is overloaded to tipc state SS_READY. - For connection oriented (CO) listening socket sock->state is overloaded to tipc state SS_LISTEN. This series is split into four: 1. Bug fixes in patch #1,2,3. 2. Minor cleanups in patch#4-5. 3. Express all tipc states using a single variable in patch#6-8. 4. Migrate the new tipc states to sk->sk_state in patch#9-16. The figures below represents the FSM after this series: Stream Server Listening Socket: +-----------+ +-------------+ | TIPC_OPEN |------>| TIPC_LISTEN | +-----------+ +-------------+ Stream Server Data Socket: +-----------+ +------------------+ | TIPC_OPEN |------>| TIPC_ESTABLISHED | +-----------+ +------------------+ ^ | | | | v +--------------------+ | TIPC_DISCONNECTING | +--------------------+ Stream Socket Client: +-----------+ +-----------------+ | TIPC_OPEN |------>| TIPC_CONNECTING |------+ +-----------+ +-----------------+ | | | | | v | +------------------+ | | TIPC_ESTABLISHED | | +------------------+ | ^ | | | | | | v | +--------------------+ | | TIPC_DISCONNECTING |<--+ +--------------------+ NOTE: This is just a base refractoring required for socket diagnostics. TIPC socket diagnostics support will be introduced in a later series. v2: - remove extra cast and parenthesis as suggested by David S. Miller in #4. - map new tipc state values to tcp states to address Eric Dumazet's concern, thus allow the usage of generic sk_* helpers. This is done in patch#10-15. - remove TIPC_PROBING state and replace it with probe_unacked flag in #11. - replace the TIPC_CLOSING state in v1 with sk_shutdown flag in #14. - introduce __tipc_shutdown() to avoid code duplication in #14. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Parthasarathy Bhuvaragan authored
In this commit, we replace references to sock->state SS_CONNECTE with sk_state TIPC_ESTABLISHED. Finally, the sock->state is no longer explicitly used by tipc. The FSM below is for various types of connection oriented sockets. Stream Server Listening Socket: +-----------+ +-------------+ | TIPC_OPEN |------>| TIPC_LISTEN | +-----------+ +-------------+ Stream Server Data Socket: +-----------+ +------------------+ | TIPC_OPEN |------>| TIPC_ESTABLISHED | +-----------+ +------------------+ ^ | | | | v +--------------------+ | TIPC_DISCONNECTING | +--------------------+ Stream Socket Client: +-----------+ +-----------------+ | TIPC_OPEN |------>| TIPC_CONNECTING |------+ +-----------+ +-----------------+ | | | | | v | +------------------+ | | TIPC_ESTABLISHED | | +------------------+ | ^ | | | | | | v | +--------------------+ | | TIPC_DISCONNECTING |<--+ +--------------------+ Signed-off-by:Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com> Signed-off-by:
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Parthasarathy Bhuvaragan authored
In this commit, we create a new tipc socket state TIPC_CONNECTING by primarily replacing the SS_CONNECTING with TIPC_CONNECTING. There is no functional change in this commit. Signed-off-by:
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Parthasarathy Bhuvaragan authored
In this commit, we replace the references to SS_DISCONNECTING with the combination of sk_state TIPC_DISCONNECTING and flags set in sk_shutdown. We introduce a new function _tipc_shutdown(), which provides the common code required by tipc_release() and tipc_shutdown(). Signed-off-by:
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Parthasarathy Bhuvaragan authored
In this commit, we create a new tipc socket state TIPC_DISCONNECTING in sk_state. TIPC_DISCONNECTING is replacing the socket connection status update using SS_DISCONNECTING. TIPC_DISCONNECTING is set for connection oriented sockets at: - tipc_shutdown() - connection probe timeout - when we receive an error message on the connection. There is no functional change in this commit. Signed-off-by:
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Parthasarathy Bhuvaragan authored
In this commit, we create a new tipc socket state TIPC_OPEN in sk_state. We primarily replace the SS_UNCONNECTED sock->state with TIPC_OPEN. Signed-off-by:
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Parthasarathy Bhuvaragan authored
Until now, tipc maintains probing state for connected sockets in tsk->probing_state variable. In this commit, we express this information as socket states and this remove the variable. We set probe_unacked flag when a probe is sent out and reset it if we receive a reply. Instead of the probing state TIPC_CONN_OK, we create a new state TIPC_ESTABLISHED. There is no functional change in this commit. Signed-off-by:
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Parthasarathy Bhuvaragan authored
Until now, tipc maintains the socket state in sock->state variable. This is used to maintain generic socket states, but in tipc we overload it and save tipc socket states like TIPC_LISTEN. Other protocols like TCP, UDP store protocol specific states in sk->sk_state instead. In this commit, we : - declare a new tipc state TIPC_LISTEN, that replaces SS_LISTEN - Create a new function tipc_set_state(), to update sk->sk_state. - TIPC_LISTEN state is maintained in sk->sk_state. - replace references to SS_LISTEN with TIPC_LISTEN. There is no functional change in this commit. Signed-off-by:
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Parthasarathy Bhuvaragan authored
Until now, tipc socket state SS_READY declares that the socket is a connectionless socket. In this commit, we remove the state SS_READY and replace it with a condition which returns true for datagram / connectionless sockets. Acked-by:
Ying Xue <ying.xue@windriver.com> Acked-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
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Parthasarathy Bhuvaragan authored
Until now, probing_intv is a variable in struct tipc_sock but is always set to a constant CONN_PROBING_INTERVAL. The socket connection is probed based on this value. In this commit, we remove this variable and setup the socket timer based on the constant CONN_PROBING_INTERVAL. There is no functional change in this commit. Acked-by:
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Parthasarathy Bhuvaragan authored
Until now, we determine if a socket is connected or not based on tsk->connected, which is set once when the probing state is set to TIPC_CONN_OK. It is unset when the sock->state is updated from SS_CONNECTED to any other state. In this commit, we remove connected variable from tipc_sock and derive socket connection status from the following condition: sock->state == SS_CONNECTED => tsk->connected There is no functional change in this commit. Acked-by:
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Parthasarathy Bhuvaragan authored
Until now, for connectionless sockets the peer information during connect is stored in tsk->peer and a connection state is set in tsk->connected. This is redundant. In this commit, for connectionless sockets we update: - __tipc_sendmsg(), when the destination is NULL the peer existence is determined by tsk->peer.family, instead of tsk->connected. - tipc_connect(), remove set/unset of tsk->connected. Hence tsk->connected is no longer used for connectionless sockets. There is no functional change in this commit. Acked-by:
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Parthasarathy Bhuvaragan authored
Until now, the peer information for connect is stored in tsk->remote but the rest of code uses the name peer for peer/remote. In this commit, we rename tsk->remote to tsk->peer to align with naming convention followed in the rest of the code. There is no functional change in this commit. Acked-by:
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Parthasarathy Bhuvaragan authored
In this commit, we rename handle to bytes_read indicating the purpose of the member. Signed-off-by:
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Parthasarathy Bhuvaragan authored
Until now, tipc_accept() calls sk_alloc() with kern=1. This is incorrect as the data socket's owner is the user application. Thus for these accepted data sockets the network namespace refcount is skipped. In this commit, we fix this by setting kern=0. Acked-by:
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Parthasarathy Bhuvaragan authored
Until now, in filter_connect() when we terminate a connection due to an error message from peer, we set the socket state to DISCONNECTING. The socket is notified about this broken connection using EPIPE when a user tries to send a message. However if a socket was waiting on a poll() while the connection is being terminated, we fail to wakeup that socket. In this commit, we wakeup sleeping sockets at connection termination. Acked-by:
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Parthasarathy Bhuvaragan authored
Until now, in stream/mcast send() we pass the message to the link layer even when the link is congested and add the socket to the link's wakeup queue. This is unnecessary for non-blocking sockets. If a socket is set to non-blocking and sends multicast with zero back off time while receiving EAGAIN, we exhaust the memory. In this commit, we return immediately at stream/mcast send() for non-blocking sockets. Acked-by:
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David S. Miller authored
Jakub Kicinski says: ==================== nfp: cleanups and RX path rewrite This series lays groundwork for upcoming XDP support by updating the RX path not to pre-allocate sk_buffs. I start with few cleanups, removal of NFP3200-related code being the most significant. Patch 7 moves to alloc_frag() and build_skb() APIs. Again, a number of small cleanups follow. The set ends with adding support for different number of RX and TX rings. ==================== Signed-off-by: -
Jakub Kicinski authored
We used to always allocate the same number of TX and RX rings so the support for having r_vectors without one of the rings was dropped. That makes us, however, unnecessarily limited to 8 TX rings (8 is the Linux RSS default) most of the time. Also we are about to add channel count configuration via ethtool, so bring that support back. TX rings can now default to num_online_cpus() and RX rings to netif_get_num_default_rss_queues(). Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Jakub Kicinski authored
num_irqs is not used anywhere, replace it with max_r_vecs which holds number of allocated RX/TX vectors and is going to be useful soon. Signed-off-by:
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Jakub Kicinski authored
nfp_net_irqs_wanted() doesn't really encapsulate much logic, remove it and inline the calculations. Signed-off-by:
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Jakub Kicinski authored
Use unsigned int consistently for vector/ring counts. Signed-off-by:
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Jakub Kicinski authored
We are currently using define for max TX rings to allocate IRQ vectors. It's OK since the max number of rings for TX and RX are currently the same, but lets make the code nicer by taking max of the two. Signed-off-by:
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Jakub Kicinski authored
We already force ring sizes to be power of 2 so replace modulo operations with AND (size - 1) in index calculations. Signed-off-by:
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Jakub Kicinski authored
Introduce a separate buffer allocation function to be called from NAPI. We can make assumptions about the context and buffer size. Signed-off-by:
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Jakub Kicinski authored
Speed up RX processing by moving to the alloc_frag()/build_skb() paradigm. Since we're no longer mapping the entire buffer for DMA add helpers which take care of calculating offsets and lengths. Signed-off-by:
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Jakub Kicinski authored
nfp_net_rx() is quite long already and about to get longer. Move buffer drop/recycle to a helper. Signed-off-by:
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Jakub Kicinski authored
Add a helper function to calculate the buffer size at run time. Buffer lengths will now depend on the FW prepend configuration instead of assuming the most space consuming configuration and defaulting to 2k buffers at initialization time. Signed-off-by:
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Jakub Kicinski authored
Don't declare functions as static inline in .c files and remove dead code it was hiding. Signed-off-by:
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Jakub Kicinski authored
ether_setup() will be invoked by alloc_etherdev_mqs(), no need to call it again. Signed-off-by:
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Jakub Kicinski authored
Drop all code related to nfp3200. It was never widely deployed as a NIC. Signed-off-by:
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Jakub Kicinski authored
There are few variables in nfp_net_poll() which are used only once or unused but set. Remove them. Signed-off-by:
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David S. Miller authored
Yuval Mintz says: ==================== qed*: Fixes to "Allow unicast filtering" Commit 7b7e70f9 ("qed*: Allow unicast filtering") introduced several issues in driver. This series is intended to address and fix those. ==================== Signed-off-by:
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Mintz, Yuval authored
When relaxing the limitation on the number of unicast MAC filters an interface can configure, qed started passing the MAC quota to qede. However, the value is initialized only for PFs, causing VFs to always try and configure themselves as promiscuous [as they believe they lack the resources to configure the rx-mode]. Fixes: 7b7e70f9 ("qed*: Allow unicast filtering") Signed-off-by:
Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by:
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Mintz, Yuval authored
Driver is now setting the ndev's priv_flags instead of adding to it, causing pktgen failure to utilize various features due to the loss of the IFF_TX_SKB_SHARING indication. Fixes: 7b7e70f9 ("qed*: Allow unicast filtering") Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Jeff Kirsher says: ==================== 40GbE Intel Wired LAN Driver Updates 2016-10-31 This series contains updates to i40e and i40evf. Colin Ian King fixes a minor issue with dev_err message where a new line character was missing from the end of the message. Jake provides several most of the changes in the series, starting with dropping the is_vf and is_netdev fields in the i40e_mac_filter structure since they are not needed (along with the checks that used these fields). Reason being that we use separate VSI's for SRIOV VFs and for netdev VSIs, therefore a single VSI should only have one type of filter. Then simplifies our .set_rx_mode handler by using the kernel provided __dev_uc_sync and __dev_mc_sync functions for notification of add and deletion of filters. Refactored the i40e_put_mac_in_vlan() to resolve an issue where this function was arbitrarily modifying all filters to have the same VLAN, which is incorrect because it could be modifying active filters without putting them into the new state. Refactored the delete filter logic so that we can re-use the functionality, where appropriate, without having to search for the filter twice. Reduced the latency of operations related to searching for specific MAC filters by using a static hash table instead of a list. Reduced code duplication in the adminq command to add/delete for filters. Fixed an issue where TSYNVALID bit was not being checked as the true indicator of whether the packet has an associated timestamp. Cleaned up a second msleep() call by simply re-ordering the code so that the extra wait is no longer needed. Alan provides additional fix to the work Jake has been doing to resolve a bug where adding at least one VLAN and then removing all VLANs leaves the MAC filters for the VSI with an incorrect value for the VID which indicates the MAC filter's VLAN status. Alex adds a common method for finding a VSI by type. Also cleaned up the logic for coalescing RS bits, which was convoluted and larger than it needed to be. Mitch fixes an issue with the failure to add filters when the VF driver is reloaded by simply setting the number of filters to 0 when freeing VF resources. Maciej implements a I40E_NVMUPD_STATE_ERROR state for NVM update, so that the driver has the ability to return NVM image write failure. Filip removes unreachable code which was found using static analysis where "if" statements were never in a "true/false" state, so clean up unnecessary if statements. ==================== Signed-off-by: -
Eric Dumazet authored
Systems with large pages (64KB pages for example) do not always have huge quantity of memory. A big SK_MEM_QUANTUM value leads to fewer interactions with the global counters (like tcp_memory_allocated) but might trigger memory pressure much faster, giving suboptimal TCP performance since windows are lowered to ridiculous values. Note that sysctl_mem units being in pages and in ABI, we also need to change sk_prot_mem_limits() accordingly. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Paul Gortmaker authored
The Makefile/Kconfig currently controlling compilation of this code is: drivers/net/cris/Makefile:obj-$(CONFIG_ETRAX_ARCH_V10) += eth_v10.o arch/cris/Kconfig:config ETRAX_ARCH_V10 arch/cris/Kconfig: bool ...meaning that it currently is not being built as a module by anyone. Lets remove the couple traces of modular infrastructure use, so that when reading the driver there is no doubt it is builtin-only. Since module_init translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. There was a one line wrapper for the int init function, which made no sense; hence we just put the device_initcall on the true init function itself and delete the pointless wrapper. In doing that we get rid of the following compile warning: WARNING: drivers/net/built-in.o(.text+0x1e28): Section mismatch in reference from the function etrax_init_module() to the function .init.text:etrax_ethernet_init() We don't replace module.h with init.h since the file already has that. Cc: "David S. Miller" <davem@davemloft.net> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: netdev@vger.kernel.org Cc: linux-cris-kernel@axis.com Signed-off-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
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- 31 Oct, 2016 2 commits
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Filip Sadowski authored
Removed some of unnecessary if statements and unreachable code found by static code analysis tool. The return value of i40e_vsi_control_rings(..., false) is always 0. So, test for non-zero will never be true. The function has been split into "int i40e_vsi_start_rings()" and "void i40e_vsi_stop_rings()" for better understanding. Similarly, the function i40e_vsi_kill_vlan() never fails. So, checking for return value is also unnecessary. Function definition changed to void. The i40e_loopback_test() function is not implemented. The function and all references to loopback testing were removed. Change-ID: Id45cf66f6689ce2bc4e887de13f073e30e8431bd Signed-off-by:
Filip Sadowski <filip.sadowski@intel.com> Tested-by:
Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Maciej Sosin authored
This patch adds I40E_NVMUPD_STATE_ERROR state for NVM update. Without this patch driver has no possibility to return NVM image write failure.This state is being set when ARQ rises error. arq_last_status is also updated every time when ARQ event comes, not only on error cases. Change-ID: I67ce43ba22a240773c2821b436e96054db0b7c81 Signed-off-by:
Maciej Sosin <maciej.sosin@intel.com> Tested-by:
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