- 15 Mar, 2015 5 commits
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Herbert Xu authored
This patch adds a rehash counter to bucket_table to indicate the last bucket that has been rehashed. This serves two purposes: 1. Any bucket that has been rehashed can never gain a new object. 2. If the rehash counter reaches the size of the table, the table will forever remain empty. This patch also downsizes bucket_table->size to an unsigned int since we do not support sizes greater than 32 bits yet. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Herbert Xu authored
There is in fact no need to wait for an RCU grace period in the rehash function, since all insertions are guaranteed to go into the new table through spin locks. This patch uses call_rcu to free the old/rehashed table at our leisure. Signed-off-by:
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Herbert Xu authored
It seems that I have already made every rehash redo the random seed even though my commit message indicated otherwise :) Since we have already taken that step, this patch goes one step further and moves the seed initialisation into bucket_table_alloc. Signed-off-by:
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Herbert Xu authored
We only nest one level deep there is no need to roll our own subclasses. Signed-off-by:
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Herbert Xu authored
Previously whenever the walker encountered a resize it simply snaps back to the beginning and starts again. However, this only works if the rehash started and completed while the walker was idle. If the walker attempts to restart while the rehash is still ongoing, we may miss objects that we shouldn't have. This patch fixes this by making the walker walk the old table followed by the new table just like all other readers. If a rehash is detected we will still signal our caller of the fact so they can prepare for duplicates but we will simply continue the walk onto the new table after the old one is finished either by us or by the rehasher. Signed-off-by:
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- 14 Mar, 2015 24 commits
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Florian Fainelli authored
Commit cd28a1a9 ("net: dsa: fully divert PHY reads/writes if requested") introduced a check for particular PHYs that need to be accessed using the slave MII bus created by DSA, but this check was too inclusive. This would prevent fixed PHYs from being successfully registered because those should not go through the slave MII bus created by DSA. Make sure we check that the PHY is not a fixed PHY to prevent that from happening. Fixes: cd28a1a9 ("net: dsa: fully divert PHY reads/writes if requested") Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> 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: ==================== Intel Wired LAN Driver Updates 2015-03-13 This series contains updates to ixgbe and ixgbevf. Don adds additional support for X550 MAC types, which require additional steps around enabling and disabling Rx. Also cleans up variable type inconsistency. I provide a patch to allow relaxed ordering to be enabled on SPARC architectures. Also cleans up ixgbevf whitespace and code comments to align the driver with networking coding standard. Lastly cleaned up uses of memcpy() where ether_addr_copy() could have been used. Alex removes some dead code in the ixgbe cleanup patch. ==================== Signed-off-by: -
David S. Miller authored
Eric Dumazet says: ==================== inet: tcp listener refactoring, part 9 This preliminary work pushes socket convergence a bit more: 1) request sock ir_iif is universally set 2) inet_diag can use common helpers to reduce LOC ==================== Signed-off-by: -
Eric Dumazet authored
Now the three type of sockets share a common base, we can factorize code in inet_diag_msg_common_fill(). inet_diag_entry no longer requires saddr_storage & daddr_storage and the extra copies. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Eric Dumazet authored
inet_sk_diag_fill() only copes with non timewait and non request socks Signed-off-by:
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Eric Dumazet authored
Once request socks will be in ehash table, they will need to have a valid ir_iff field. This is currently true only for IPv6. This patch extends support for IPv4 as well. This means inet_diag_fill_req() can now properly use ir_iif, which is better for IPv6 link locals anyway, as request sockets and established sockets will propagate consistent netlink idiag_if. Signed-off-by:
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David S. Miller authored
Jon Maloy says: ==================== tipc: some optimizations and impovements The commits in this series contain some relatively simple changes that lead to better throughput across TIPC connections. We also make changes to the implementation of link transmission queueing and priority handling, in order to make the code more comprehensible and maintainable. v2: Commit #2: Redesigned tipc_msg_validate() to use pskb_may_pull(), as per feedback from David Miller. Commit #3: Some cosmetic changes to tipc_msg_extract(). I tried to replace the unconditional skb_linearize() with calls to pskb_may_pull() at selected locations, but I gave up. First, skb_trim() requires a fully linearized buffer. Second, it doesn't make much sense; the whole buffer will end up linearized, one way or another. ==================== Signed-off-by: -
Jon Paul Maloy authored
Messages transferred by TIPC are assigned an "importance priority", -an integer value indicating how to treat the message when there is link or destination socket congestion. There is no separate header field for this value. Instead, the message user values have been chosen in ascending order according to perceived importance, so that the message user field can be used for this. This is not a good solution. First, we have many more users than the needed priority levels, so we end up with treating more priority levels than necessary. Second, the user field cannot always accurately reflect the priority of the message. E.g., a message fragment packet should really have the priority of the enveloped user data message, and not the priority of the MSG_FRAGMENTER user. Until now, we have been working around this problem in different ways, but it is now time to implement a consistent way of handling such priorities, although still within the constraint that we cannot allocate any more bits in the regular data message header for this. In this commit, we define a new priority level, TIPC_SYSTEM_IMPORTANCE, that will be the only one used apart from the four (lower) user data levels. All non-data messages map down to this priority. Furthermore, we take some free bits from the MSG_FRAGMENTER header and allocate them to store the priority of the enveloped message. We then adjust the functions msg_importance()/msg_set_importance() so that they read/set the correct header fields depending on user type. This small protocol change is fully compatible, because the code at the receiving end of a link currently reads the importance level only from user data messages, where there is no change. Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
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Jon Paul Maloy authored
struct tipc_link contains one single queue for outgoing packets, where both transmitted and waiting packets are queued. This infrastructure is hard to maintain, because we need to keep a number of fields to keep track of which packets are sent or unsent, and the number of packets in each category. A lot of code becomes simpler if we split this queue into a transmission queue, where sent/unacknowledged packets are kept, and a backlog queue, where we keep the not yet sent packets. In this commit we do this separation. Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
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Jon Paul Maloy authored
The unicast packet header contains a broadcast acknowledge sequence number, that may need to be conveyed to the broadcast link for proper treatment. Currently, the function tipc_rcv(), which is on the most critical data path, calls the function tipc_bclink_acknowledge() to have this done. This call is made for each received packet, and results in the unconditional grabbing of the broadcast link spinlock. This is unnecessary, since we can see directly from tipc_rcv() if the acknowledged number differs from what has been previously acked from the node in question. In the vast majority of cases the numbers won't differ, and there is nothing to update. We now make the call to tipc_bclink_acknowledge() conditional to that the two ack values differ. Reviewed-by:
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Jon Paul Maloy authored
When we currently extract a bundled buffer from a message bundle in the function tipc_msg_extract(), we allocate a new buffer and explicitly copy the linear data area. This is unnecessary, since we can just clone the buffer and do skb_pull() on the clone to move the data pointer to the correct position. This is what we do in this commit. Reviewed-by:
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Jon Paul Maloy authored
Currently, TIPC linearizes all incoming buffers directly at reception before passing them upwards in the stack. This is clearly a waste of CPU resources, and must be avoided. In this commit, we eliminate this unnecessary linearization. We still ensure that at least the message header is linear, and that the buffer is linearized where this is still needed, i.e. when unbundling and when reversing messages. In addition, we ensure that fragmented messages are validated after reassembly before delivering them upwards in the stack. Reviewed-by:
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Jon Paul Maloy authored
The function link_buf_validate() is in reality re-entrant and context independent, and will in later commits be called from several locations. Therefore, we move it to msg.c, make it outline and rename the it to tipc_msg_validate(). We also redesign the function to make proper use of pskb_may_pull() Signed-off-by:
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Jon Paul Maloy authored
The TIPC protocol spec has defined a 13 bit capability bitmap in the neighbor discovery header, as a means to maintain compatibility between different code and protocol generations. Until now this field has been unused. We now introduce the basic framework for exchanging capabilities between nodes at first contact. After exchange, a peer node's capabilities are stored as a 16 bit bitmap in struct tipc_node. Reviewed-by:
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David S. Miller authored
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== Here's another set of Bluetooth & ieee802154 patches intended for 4.1: - Added support for QCA ROME chipset family in the btusb driver - at86rf230 driver fixes & cleanups - ieee802154 cleanups - Refactoring of Bluetooth mgmt API to allow new users - New setting for static Bluetooth address exposed to user space - Refactoring of hci_dev flags to remove limit of 32 - Remove unnecessary fast-connectable setting usage restrictions - Fix behavior to be consistent when trying to pair already paired device - Service discovery corner-case fixes Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by:
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Julia Lawall authored
The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ type T; identifier f; @@ static T f (...) { ... } @@ identifier r.f; declarer name EXPORT_SYMBOL; @@ -EXPORT_SYMBOL(f); // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Acked-by:
Alexander Aring <alex.aring@gmail.com> Signed-off-by:
Marcel Holtmann <marcel@holtmann.org>
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Alexander Aring authored
These registers are also changed by transceiver and should be volatile for right accessing via regmap debugfs. Signed-off-by:
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Alexander Aring authored
This patch adds a handling for calibration if we are 5 minutes in PLL state. I first tried to implement the calibration functionality in TX_ON state via register values CF_START and DCU_START, but this occurs a one second delay at each calibration time. An another solution to start a calibration is to switch from TRX_OFF state into TX_ON, then a calibration is done automatically by transceiver. This method will be used in this patch, after each transmit of a frame we check with jiffies if the PLL is set 5 minutes without doing a TRX_OFF->(TX_ON || RX_AACK_ON) or channel switch. The worst case would be a transceiver in receiving mode only, but this is under normal operation very unlikely. Signed-off-by:
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Alexander Aring authored
This patch replace the state change timing relevant sleeps with hrtimers. Currently the sleeps are done in the complete handler of spi_async. The relation of doing the state change timing sleep with a timer will get the sleep functionality out of spi_async complete handler context. Signed-off-by:
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Alexander Aring authored
This patch initialize xtal_trim value to zero. The xtal_trim property is an optional device tree value. Currently if no xtal_trim property is given the xtal_trim value can be contain random data, because it's a stack variable. This patch init the xtal_trim value to zero which is also the default value after reset for at86rf230 transceivers. Signed-off-by:
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Alexander Aring authored
This patch fix the max sifs size correction when the IEEE802154_HW_TX_OMIT_CKSUM flag is set. With this flag the sk_buff doesn't contain the CRC, because the transceiver will add the CRC while transmit. Also add some defines for the max sifs frame size value and frame check sequence according to 802.15.4 standard. Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
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Alexander Aring authored
It's only necessary to offer the name and index, others value are available over netlink. Signed-off-by:
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Alexander Aring authored
Currently the wpan_phy under /sys/class/ieee802154/ is named as "wpan-phy#", this patch will change the name to phy. This will introduce the same naming convention like wireless. Note: wpan-tools users will not type "wpan-phy#" anymore, just a simple "phy#" is enough. Signed-off-by: -
Alexander Aring authored
Currently there exists two interface types with ARPHRD_IEEE802154. These are the 802.15.4 interfaces and 802.15.4 6LoWPAN interfaces. This is more a bug because some userspace applications checks on this value like wireshark. This occurs that wireshark will always try to parse a lowpan interface as 802.15.4 frames. With ARPHRD_6LOWPAN wireshark will parse it as IPv6 frames which is correct. Much applications checks on this value to readout the EUI64 mac address which should be the same for ARPHRD_6LOWPAN. BTLE 6LoWPAN and ieee802154 6LoWPAN will share now the same ARPHRD. Signed-off-by:
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- 13 Mar, 2015 11 commits
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Jeff Kirsher authored
Use the macro to copy the Ethernet address instead of memcpy(). Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by:
Phil Schmitt <phillip.j.schmitt@intel.com>
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Jeff Kirsher authored
Fix the code comments to align with drivers/net/ code commenting style, as well as whitespace issues. The whitespace issues resolve checkpatch errors, like lines exceeding 80 chars (except for strings) and the use of tabs where possible. CC: <kernel-team@fb.com> Signed-off-by:
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Alexander Duyck authored
This patch removes some dead code from the cleanup path for ixgbe. Setting and clearing the flag doesn't do anything since all we are doing is setting the flag, scheduling NAPI, clearing the flag and then letting netpoll do the polling cleanup. As such it doesn't make much sense to have it there. This patch also removes one minor white-space error. CC: <kernel-team@fb.com> Signed-off-by:
Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by:
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Jeff Kirsher authored
This patch makes sure that relaxed ordering is not disabled when on SPARC, where it helps with performance. CC: <kernel-team@fb.com> CC: Sowmini Varadhan <sowmini.varadhan@oracle.com> Reported-by:
Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by:
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Don Skidmore authored
Correcting a mistake when I initial created this function. I should have made this static since it is only referenced where the function pointer is assigned. CC: <kernel-team@fb.com> Signed-off-by:
Don Skidmore <donald.c.skidmore@intel.com> Tested-by:
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Don Skidmore authored
Missed this when I created commit 6a14ee0c ("ixgbe: Add X550 support function pointers"). Use a the __be* type to be consistent with how the value is assigned. CC: <kernel-team@fb.com> Signed-off-by:
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Don Skidmore authored
For the X550 mac type we have to do additional steps around enabling/disabling Rx. This patch will add a layer of indirection around these support functions to enable this. CC: <kernel-team@fb.com> Signed-off-by:
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David S. Miller authored
Florian Fainelli says: ==================== net: bcmgenet: xmit_more support This patch series adds xmit_more support to the GENET driver by allowing the deferal of the producer index write to the TDMA engine. Changes in v2: - move the netif_tx_stop_queue check *before* updating the producer index ==================== Signed-off-by: -
Florian Fainelli authored
Delay the update of the TDMA producer index unless this is the last SKB in a batch, or the queue is already stopped. Move the check for whether the queue should be stopped before the xmit_more check to avoid locking the transmit queue in case there was a SKB submitted which has xmit_more set. Signed-off-by:
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Florian Fainelli authored
There is no need to have both bcmgenet_xmit_single() and bcmgenet_xmit_frag() perform a free_bds decrement and a prod_index increment by one. In case one of these functions fails to map a SKB or fragment for transmit, we will return and exit bcmgenet_xmit() with an error. We can therefore safely use our local copy of nr_frags to know by how much we should decrement the number of free buffers available, and by how much the producer count must be incremented and do this in the tail of bcmgenet_xmit(). Signed-off-by:
Petri Gynther <pgynther@google.com> Signed-off-by:
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Petri Gynther authored
Currently, bcmgenet_desc_rx() calls bcmgenet_rx_refill() at the end of Rx packet processing loop, after the current Rx packet has already been passed to napi_gro_receive(). However, bcmgenet_rx_refill() might fail to allocate a new Rx skb, thus leaving a hole on the Rx queue where no valid Rx buffer exists. To eliminate this situation: 1. Rewrite bcmgenet_rx_refill() to retain the current Rx skb on the Rx queue if a new replacement Rx skb can't be allocated and DMA-mapped. In this case, the data on the current Rx skb is effectively dropped. 2. Modify bcmgenet_desc_rx() to call bcmgenet_rx_refill() at the top of Rx packet processing loop, so that the new replacement Rx skb is already in place before the current Rx skb is processed. Signed-off-by:
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