- 28 Oct, 2009 26 commits
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Eric Dumazet authored
Speedup module unloading by factorizing synchronize_rcu() calls Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Use unregister_netdevice_many() to speedup master device unregister. Signed-off-by:
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Eric Dumazet authored
Adding a list_head parameter to rtnl_link_ops->dellink() methods allow us to queue devices on a list, in order to dismantle them all at once. Signed-off-by:
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Eric Dumazet authored
Introduce rollback_registered_many() and unregister_netdevice_many() rollback_registered_many() is able to perform necessary steps at device dismantle time, factorizing two expensive synchronize_net() calls. Signed-off-by:
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Eric Dumazet authored
This patchs adds an unreg_list anchor to struct net_device, and introduces an unregister_netdevice_queue() function, able to queue a net_device to a list instead of immediately unregister it. Signed-off-by:
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Alexander Duyck authored
This patch moves some defines into the e1000_regs.h file since this is the correct place for register defines and not inside of igb_ethtool.c Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Alexander Duyck authored
This change adds testing of the first msix vector to the interrupt testing. This should help with determining the cause of interrupt issues when they are encountered. Signed-off-by:
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Alexander Duyck authored
This change adds a clean_rx/tx_irq type function call to the ethtool loopback testing which allows us to test the core transmit and receive functionality in the driver. Signed-off-by:
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Alexander Duyck authored
This change makes a minor change to the xmit_frame_ring_adv funcition in that it moves 2 checks from it into the xmit_frame_adv since the checks were not ring specific. In addition it exports the xmit_frame_ring_adv and the unmap_and_free_tx_resource calls so that they can be used by other code such as the ethtool loopback testing calls. Signed-off-by:
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Alexander Duyck authored
Since all of the ring code is now specific to the ring instead of the adapter struct it is possible to cut a large section of code out of the ethtool testing configuraiton since we can just use the existing functions to configure the rings. Signed-off-by:
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Alexander Duyck authored
This update adds vlan tag stripping for inter-vf communications to the igb_vmm_control configuration function. Signed-off-by:
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Alexander Duyck authored
This update delays the VF reset notification until after interrupts are enabled. Otherwise there is a chance of having the VF try to reset itself too soon and being ignored by the PF as a result. Signed-off-by:
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Alexander Duyck authored
This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by:
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Alexander Duyck authored
This change adds a pointer to the netdev to the ring itself. The idea being at some point in the future it will be possible to support multiple netdevs from a single adapter struct. Signed-off-by:
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Alexander Duyck authored
This patch adds a flags value to the ring that cleans up some of the last remaining items from the ring in order to help seperate it from the adapter struct. By implementing these flags it becomes possible for different rings to support different functions such as rx checksumming. Signed-off-by:
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Alexander Duyck authored
The allocation failed and checksum error stats are currently kept as a global stat. If we end up allocating the queues to multiple netdevs then the global counter doesn't make much sense. For this reason I felt it necessary to move the alloc_rx_buff_failed stat into the rx_stats portion of the rx_ring. Signed-off-by:
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Alexander Duyck authored
This patch moves the rx_buffer_len value into the ring structure. This allows greater flexibility and the option of doing things such as supporting packet split only on some queues, or enabling virtualization. Signed-off-by:
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Alexander Duyck authored
This patch adds a pci device pointer to the ring structure. The main use of this pointer is for memory mapping/unmapping of the rings. Signed-off-by:
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Alexander Duyck authored
Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by:
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Alexander Duyck authored
The SRRCTL register exists per ring. Instead of configuring all of them in the RCTL configuration which is meant to be global it makes more sense to move this out into the ring specific configuration. Signed-off-by:
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Alexander Duyck authored
This patch removes the rx_ps_hdr_len which isn't really needed since we can now use rx_buffer_len less than 1K to indicate that we are in a packet split mode. We also don't need it since we always use a half page for the data buffers when receiving so we always know the size to map/unmap. Signed-off-by:
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Alexander Duyck authored
This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by:
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Alexander Duyck authored
This update increases the minimum rx buffer size to 1K. The reason for this change is to support SR-IOV and avoid any conflicts with the rings being able to set their own MTU sizes. Signed-off-by:
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Alexander Duyck authored
Counting packets with a good checksum can cause a significant amount of cache line bouncing due to the shared counter being written to by all of the queues. In order to avoid this I am removing the counter since we still have the checksum failed counter which will tell us if there are any issues. Signed-off-by:
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Alexander Duyck authored
Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by:
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Jie Yang authored
remove duplicate atl1c_get_tpd, it may cause hardware to send wrong packets. Signed-off-by:
Jie Yang <jie.yang@atheros.com> Signed-off-by:
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- 27 Oct, 2009 6 commits
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Jasper Spaans authored
Now that the bonding device is no longer used in determining the device to which to send packets, it can be dropped from the argument list of the various xmit_hash_policy calls. Signed-off-by:
Jasper Spaans <spaans@fox-it.com> Acked-by:
Jay Vosburgh <fubar@us.ibm.com> Signed-off-by:
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David S. Miller authored
Conflicts: drivers/net/sh_eth.c
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Eric Dumazet authored
We currently use a 16 bit field (vlan_tci) to store VLAN ID/PRIO on a skb. Null value is used as a special value, meaning vlan tagging not enabled. This forbids use of null vlan ID. As pointed by David, some drivers use the 3 high order bits (PRIO) As VLAN ID is 12 bits, we can use the remaining bit (CFI) as a flag, and allow null VLAN ID. In case future code really wants to use VLAN_CFI_MASK, we'll have to use a bit outside of vlan_tci. #define VLAN_PRIO_MASK 0xe000 /* Priority Code Point */ #define VLAN_PRIO_SHIFT 13 #define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator */ #define VLAN_TAG_PRESENT VLAN_CFI_MASK #define VLAN_VID_MASK 0x0fff /* VLAN Identifier */ Reported-by:
Gertjan Hofman <gertjan_hofman@yahoo.com> Signed-off-by:
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Kurt Van Dijck authored
Commit 7b6856a0 "can: provide library functions for skb allocation" did not properly remove two lines of the SJA1000 driver resulting in a 'skb_over_panic' when calling skb_put, as reported by Kurt. Signed-off-by:
Kurt Van Dijck <kurt.van.dijck@eia.be> Signed-off-by:
Wolfgang Grandegger <wg@grandegger.com> Signed-off-by:
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Krishna Kumar authored
Set the rxq# for LRO when processing the last fragment of a frame. This helps in fast txq selection for routing workloads. Signed-off-by:
Krishna Kumar <krkumar2@in.ibm.com> Acked-by:
Divy Le Ray <divy@chelsio.com> Signed-off-by:
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Nobuhiro Iwamatsu authored
Add include asm/cacheflush.h, because declaration of __flush_purge_region moved to asm/cacheflush.h. Signed-off-by:
Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by:
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- 26 Oct, 2009 8 commits
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Michal Ostrowski authored
Be more careful about the state of pointers during tear-down. The "pppoe_dev" field can only be looked at safely while holding socket locks. This subsequently allows for the flush_lock to be killed. We depend on the PPPOX_CONNECTED state to tell us that that those fields are valid, so whoever clears that state (pppox_unbind_sock()) is responsible for the dev_put() call. We also have to ensure that we delete_item() on all sockets before they are cleaned up. The need for these changes has been exposed by scenarios wherein namespace bindings of ethernet devices change while there are ongoing PPPoE sessions, which resulted in oopses due to unusual socket connection termination paths, exposing these issues. Signed-off-by:
Michal Ostrowski <mostrows@gmail.com> Reviewed-by:
Cyril Gorcunov <gorcunov@gmail.com> Reported-by:
Denys Fedoryschenko <denys@visp.net.lb> Tested-by:
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Bruce Allan authored
PCH-based parts (82577/82578) and some ICH8-based parts (82566) need to hold the swflag (sw/fw/hw hardware semaphore) over consecutive PHY accesses in order to perform sw-driven PHY configuration during initialization to workaround known hardware issues (see follow-on patch). This patch provides new PHY read/write functions (and function pointers) that will allow accessing the PHY registers assuming the swflag has already been acquired. The actual PHY register access code has moved into helper functions that are called with a flag indicating whether or not the swflag has already been acquired and acquires/releases it if not. The functions called from within the updated PHY access functions had to be updated to assume the swflag was already acquired, and other functions that called those functions were also updated to acquire/release the swflag. Signed-off-by:
Bruce Allan <bruce.w.allan@intel.com> Signed-off-by:
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Bruce Allan authored
Accesses to NVM and PHY/CSR registers on ICHx/PCH-based parts are protected from concurrent accesses with a mutex that is acquired when the access is initiated and released when the access has completed. However, the two types of accesses should not be protected by the same mutex because the driver may have to access the NVM while already holding the mutex over several consecutive PHY/CSR accesses which would result in livelock. Signed-off-by:
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Bruce Allan authored
Unlike previous ICHx-based parts, the PCH-based parts (82577/82578) require LPLU (Low Power Link Up, or "reverse auto-negotiation") to be configured in the PHY rather than the MAC. Signed-off-by:
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Bruce Allan authored
In some conditions (e.g. when AMT is enabled on the system), it is possible to take an extended period of time to for the driver to acquire the sw/fw/hw hardware semaphore used to protect against concurrent access of a shared resource (e.g. PHY registers). This could cause PHY registers to not get configured properly resulting in link issues. Signed-off-by:
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Bruce Allan authored
Performing a dummy read of the PHY Wakeup Control (WUC) register clears the wakeup enable bit set by an PHY reset. If this bit remains set, link problems may occur. Signed-off-by:
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Alexander Duyck authored
This patch resolves a memory leak which occurs while changing the ring size while the interface is down. Signed-off-by:
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Alexander Duyck authored
This patch resolves a memory leak that occurs when you resize the rings via the ethtool -G option while the interface is down. Signed-off-by:
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