- 01 10月, 2017 16 次提交
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由 David S. Miller 提交于
Vivien Didelot says: ==================== net: dsa: change dsa_ptr for a dsa_port With DSA, a master net_device is physically wired to a dedicated CPU switch port. For interaction with the DSA layer, the struct net_device contains a dsa_ptr, which currently points to a dsa_switch_tree object. This is only valid for a switch fabric with a single CPU port. In order to support switch fabrics with multiple CPU ports, we first need to change the type of dsa_ptr to what it really is: a dsa_port object. This is what this patchset does. The first patches adds a dsa_master_get_slave helper and cleans up portions of DSA core to make the next patches more readable. These next patches prepare the xmit and receive hot paths and finally change dsa_ptr. Changes in v2: - introduce dsa_master_get_slave helper to simplify patch 6 - keep hot path data at beginning of dsa_port for cacheline 1 ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
Now that the dsa_ptr is a dsa_port instance, there is no need to keep the tag operations in the dsa_switch_tree structure. Remove it. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
With DSA, a master net device (CPU facing interface) has a dsa_ptr pointer to which hangs a dsa_switch_tree. This is not correct because a master interface is wired to a dedicated switch port, and because we can theoretically have several master interfaces pointing to several CPU ports of the same switch fabric. Change the master interface's dsa_ptr for the CPU dsa_port pointer. This is a step towards supporting multiple CPU ports. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
In preparation to make DSA master devices point to their corresponding CPU port instead of the whole tree, add copies of dst and rcv in the dsa_port structure so that we keep fast access in the receive hot path. Also keep the copies at the beginning of the dsa_port structure in order to ensure they are available in cacheline 1. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
The DSA tagging protocol operations are specific to each CPU port, thus the dsa_device_ops pointer belongs to the dsa_port structure. >From now on assign a slave's xmit copy from its CPU port tagging operations. This will ease the future support for multiple CPU ports. Also keep the tag_ops at the beginning of the dsa_port structure so that we ensure copies for hot path are in cacheline 1. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
When resolving the DSA tagging protocol used by a CPU switch, use a temporary "tag_ops" variable to store the dsa_device_ops instead of using directly dst->tag_ops. This will make the future patches moving this pointer around easier to read. There is no functional changes. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
Make it clear that the master device is linked to a CPU port by using "cpu_dp" for the dsa_port variable in master.c instead of "port", then use a "port" variable to describe the port index, as usually seen in other places of DSA core. This will make the future patch touching dsa_ptr more readable. There is no functional changes. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vivien Didelot 提交于
The DSA tagging code does not need to know about the DSA architecture, it only needs to return the slave device corresponding to the source port index (and eventually the source device index for cascade-capable switches) parsed from the frame received on the master device. For this purpose, provide an inline dsa_master_get_slave helper which validates the device and port indexes and look up the slave device. This makes the tagging rcv functions more concise and robust, and also makes dsa_get_cpu_port obsolete. Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Colin Ian King 提交于
pointer ndev is being dereferenced with the call to netif_running before it is being null checked. Re-order the code to only dereference ndev after it has been null checked. Detected by CoverityScan, CID#1457206 ("Dereference before null check") Fixes: 9df8f79a ("net: hns3: Add DCB support when interacting with network stack") Signed-off-by: NColin Ian King <colin.king@canonical.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Simon Xiao 提交于
Report the numbers of events for stop_queue and wake_queue in ethtool stats. Example: ethtool -S eth0 NIC statistics: ... stop_queue: 7 wake_queue: 7 ... Signed-off-by: NSimon Xiao <sixiao@microsoft.com> Reviewed-by: NHaiyang Zhang <haiyangz@microsoft.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Martin KaFai Lau 提交于
This patch uses u64_to_user_ptr() to cast info.map_ids to a userspace ptr. It also tags the user_map_ids with '__user' for sparse check. Fixes: cb4d2b3f ("bpf: Add name, load_time, uid and map_ids to bpf_prog_info") Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Colin Ian King 提交于
The assignment of -EINVAL to variable ret is redundant as it is being overwritten on the following error exit paths or to the return value from the following call to basic_set_parms. Fix this up by removing it. Cleans up clang warning message: net/sched/cls_basic.c:185:2: warning: Value stored to 'err' is never read Fixes: 1d8134fe ("net_sched: use idr to allocate basic filter handles") Signed-off-by: NColin Ian King <colin.king@canonical.com> Acked-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Colin Ian King 提交于
The function ipmr_notifier_init is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: warning: symbol 'ipmr_notifier_init' was not declared. Should it be static? Signed-off-by: NColin Ian King <colin.king@canonical.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mick Tarsel 提交于
State is initially reported as UNKNOWN. Before register call netif_carrier_off(). Once the device is opened, call netif_carrier_on() in order to set the state to UP. Signed-off-by: NMick Tarsel <mjtarsel@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Florian Fainelli 提交于
This reverts commit e85ec74a ("net: dsa: bcm_sf2: Defer port enabling to calling port_enable") because this now makes an unbind followed by a bind to fail connecting to the ingrated PHY. What this patch missed is that we need the PHY to be enabled with bcm_sf2_gphy_enable_set() before probing it on the MDIO bus. This is correctly done in the ops->setup() function, but by the time ops->port_enable() runs, this is too late. Upon unbind we would power down the PHY, and so when we would bind again, the PHY would be left powered off. Fixes: e85ec74a ("net: dsa: bcm_sf2: Defer port enabling to calling port_enable") Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue由 David S. Miller 提交于
Jeff Kirsher says: ==================== 40GbE Intel Wired LAN Driver Updates 2017-09-29 This series contains updates to i40e and i40evf only. Jake provides several of the changes starting with the renaming of a variable to clarify what the value is actually calculating. Found we were misusing the __I40E_RECOVERY_PENDING bit to determine when we should actually request a new IRQ in i40e_setup_misc_vector(), which lead to a design mistake, so to resolve the issue, use a separate state bit for miscellaneous IRQ setup and fix up the design while we are at it. Cleaned up the old legacy PM support in the driver since we support the newer generic PM callbacks. Fixed a failure to hibernate issue, where on some platforms with a large number of CPUs, we would allocate many IRQ vectors which we would try to migrate to CPU0 when hibernating. Sudheer cleans up a check for unqualified module inside i40e_up_complete() because the link state information is in flux at time, so log messages are getting logged with incorrect link state information. Also provided additional log message cleanups and simplify member variable access in the printing of the link messages. Mariusz relaxes the firmware check since Fortville and Fort Park NICs can and do have different firmware versions, so only warn for older Fortville firmware. Fixed an errata with a flow director statistic that was not wrapping as expected, simply reset after reading. Mitch prevents consternation by lowering the log level to debug on a message seen regularly on VF reset or unload, which is meaningless under normal circumstances. Refactor the firmware version checking since Fortville and Fort Park devices can have different firmware versions. Alan fixes a ring to vector mapping, where the past implementation attempted to map each Tx and Rx ring to its own vector, however we use combined queues so we should be mapping the Tx/Rx rings together on one vector. Adds the ability for the VF to request a different number of queues allocated to it. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 9月, 2017 18 次提交
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由 Colin Ian King 提交于
The check on len is redundant as it is always greater than 1, so just remove it and make the printk less complex. Detected by CoverityScan, CID#1226729 ("Logically dead code") Signed-off-by: NColin Ian King <colin.king@canonical.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Maciej Żenczykowski 提交于
So far we've been relying on sockopt(SOL_IP, IP_FREEBIND) being usable even on IPv6 sockets. However, it turns out it is perfectly reasonable to want to set freebind on an AF_INET6 SOCK_RAW socket - but there is no way to set any SOL_IP socket option on such a socket (they're all blindly errored out). One use case for this is to allow spoofing src ip on a raw socket via sendmsg cmsg. Tested: built, and booted # python >>> import socket >>> SOL_IP = socket.SOL_IP >>> SOL_IPV6 = socket.IPPROTO_IPV6 >>> IP_FREEBIND = 15 >>> IPV6_FREEBIND = 78 >>> s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, 0) >>> s.getsockopt(SOL_IP, IP_FREEBIND) 0 >>> s.getsockopt(SOL_IPV6, IPV6_FREEBIND) 0 >>> s.setsockopt(SOL_IPV6, IPV6_FREEBIND, 1) >>> s.getsockopt(SOL_IP, IP_FREEBIND) 1 >>> s.getsockopt(SOL_IPV6, IPV6_FREEBIND) 1 Signed-off-by: NMaciej Żenczykowski <maze@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mike Manning 提交于
The NS for DAD are sent on admin up as long as a valid qdisc is found. A race condition exists by which these packets will not egress the interface if the operational state of the lower device is not yet up. The solution is to delay DAD until the link is operationally up according to RFC2863. Rather than only doing this, follow the existing code checks by deferring IPv6 device initialization altogether. The fix allows DAD on devices like tunnels that are controlled by userspace control plane. The fix has no impact on regular deployments, but means that there is no IPv6 connectivity until the port has been opened in the case of port-based network access control, which should be desirable. Signed-off-by: NMike Manning <mmanning@brocade.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mitch Williams 提交于
The i40e driver now supports two different devices with two different firmware versions. So be smart about how we handle these. Move the FW version macros to the appropriate header file, and add a convenience macro that checks the version based on the device. Then use this macro to check whether or not the driver can use the new link info API. Signed-off-by: NMitch Williams <mitch.a.williams@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Alan Brady 提交于
Currently the PF allocates a default number of queues for each VF and cannot be changed. This patch enables the VF to request a different number of queues allocated to it. This patch also adds a new virtchnl op and capability flag to facilitate this negotiation. After the PF receives a request message, it will set a requested number of queues for that VF. Then when the VF resets, its VSI will get a new number of queues allocated to it. This is a best effort request and since we only allocate a guaranteed default number, if the VF tries to ask for more than the guaranteed number, there may not be enough in HW to accommodate it unless other queues for other VFs are freed. It should also be noted decreasing the number queues allocated to a VF to below the default will NOT enable the allocation of more than 32 VFs per PF and will not free queues guaranteed to each VF by default. Signed-off-by: NAlan Brady <alan.brady@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Alan Brady 提交于
The current implementation for mapping queues to vectors is broken because it attempts to map each Tx and Rx ring to its own vector, however we use combined queues so we should actually be mapping the Tx/Rx rings together on one vector. Also in the current implementation, in the case where we have more queues than vectors, we attempt to group the queues together into 'chunks' and map each 'chunk' of queues to a vector. Chunking them together would be more ideal if, and only if, we only had RSS because of the way the hashing algorithm works but in the case of a future patch that enables VF ADq, round robin assignment is better and still works with RSS. This patch resolves both those issues and simplifies the code needed to accomplish this. Instead of treating the case where we have more queues than vectors as special, if we notice our vector index is greater than vectors, reset the vector index to zero and continue mapping. This should ensure that in both cases, whether we have enough vectors for each queue or not, the queues get appropriately mapped. Signed-off-by: NAlan Brady <alan.brady@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Jacob Keller 提交于
On some platforms with a large number of CPUs, we will allocate many IRQ vectors. When hibernating, the system will attempt to migrate all of the vectors back to CPU0 when shutting down all the other CPUs. It is possible that we have so many vectors that it cannot re-assign them to CPU0. This is even more likely if we have many devices installed in one platform. The end result is failure to hibernate, as it is not possible to shutdown the CPUs. We can avoid this by disabling MSI-X and clearing our interrupt scheme when the device is suspended. A more ideal solution would be some method for the stack to properly handle this for all drivers, rather than on a case-by-case basis for each driver to fix itself. However, until this more ideal solution exists, we can do our part and shutdown our IRQs during suspend, which should allow systems with a large number of CPUs to safely suspend or hibernate. It may be worth investigating if we should shut down even further when we suspend as it may make the path cleaner, but this was the minimum fix for the hibernation issue mentioned here. Testing-hints: This affects systems with a large number of CPUs, and with multiple devices enabled. Without this change, those platforms are unable to hibernate at all. Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Jacob Keller 提交于
Although the service task does check the suspended status before running, it might already be part way through running when we go to suspend. Lets ensure that the service task is stopped and will not be restarted again until we finish resuming. This ensures that service task code does not cause strange interactions with the suspend/resume handlers. Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Jacob Keller 提交于
When handling suspend and resume callbacks we want to make sure that (a) we don't suspend again if we're already suspended and (b) we don't resume again if we're already resuming. Lets make sure we test_and_set the __I40E_SUSPENDED bit in i40e_suspend which ensures that a suspend call when already suspended will exit early. Additionally, if __I40E_SUSPENDED is not set when we begin resuming, exit early as well. Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Jacob Keller 提交于
Stop using the old legacy PM support, since we now have stable support for the newer generic PM callbacks. This has several advantages. First, we no longer have to manage our own pci_save_state() and power changes, as it's preferred to have the PCI stack do this. Second, these routines get called for both hibernate and suspend to ram, so we can have the driver properly handle all the suspend/resume flows that it needs to. Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Jacob Keller 提交于
We currently (mis)use the __I40E_RECOVERY_PENDING bit to determine when we should actually request a new IRQ in i40e_setup_misc_vector(). This led to a design mistake where we open-coded the re-setup of the miscellaneous vector in i40e_resume() instead of using the function provided. If we did not open-code this and instead tried to use the i40e_setup_misc_vector() function, it would lead to never reallocating the IRQ. This would lead to a second i40e_suspend() call failing to free the vector due to a NULL pointer dereference. A future patch is going to re-work how the i40e_suspend() and i40e_resume() flows work to clear all IRQ vectors, which would require us to use i40e_setup_misc_vector() directly. Since during this time the __I40E_RECOVERY_PENDING bit is set, we'll never re-allocate the vector. Rather than leaving the open-coded setup in i40e_resume() lets just fix the problem properly in i40e_setup_misc_vector(). Introduce a new state bit which indicates when the IRQ has been assigned, which will be set when i40e_setup_misc_vector is first called. This ultimately resolves the issue of re-requesting the vector, without overloading the __I40E_RECOVERY_PENDING state. This ensures that the suspend/resume cycle can use the setup function instead of open-coding the re-request during resume. Additionally, since the only callers of i40e_stop_misc_vector also want to free it, move this code directly into the function to avoid duplication. Due to the new functionality, rename it to i40e_free_misc_vector(). This lets us drop the extra calls to free and re-enable the vector during i40e_suspend() and i40e_resume(). We don't need to call i40e_setup_misc_Vector() in i40e_resume() because it gets called by the i40e_rebuild() call. Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Mitch Williams 提交于
We see this message regularly on VF reset or unload (which invokes a reset). It's essentially meaningless unless it's happening constantly. To prevent consternation, lower the log level to debug so it's not seen under normal circumstance. Signed-off-by: NMitch Williams <mitch.a.williams@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Mariusz Stachura 提交于
An errata with GLQF_PCNT causes it to not wrap as expected. This can cause an error in flow director statistics. This patch resets affected counters just after reading. Signed-off-by: NMariusz Stachura <mariusz.stachura@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Mariusz Stachura 提交于
Fortville and Fort Park devices are often on different firmware release schedules. This change relaxes the minor version warning message, so it is only displayed for older FW warning version for old firmware Fortville 3 or earlier. Signed-off-by: NMariusz Stachura <mariusz.stachura@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Sudheer Mogilappagari 提交于
This commit replaces usage of vsi->back in i40e_print_link_message() (which is actually a PF pointer) with temp variable. Signed-off-by: NSudheer Mogilappagari <sudheer.mogilappagari@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Sudheer Mogilappagari 提交于
i40e_print_link_message() is intended to compare new link state with current link state and print log message only if the new state is different from current state. However in current driver the new state does not get updated when link is going down because of the if condition. When an interface is brought down, vsi->state is set to I40E_VSI_DOWN in i40e_vsi_close() and later i40e_print_link_message() does not get invoked in i40e_link_event due to if condition. Hence link down message doesn't appear when link is going down. The down state is seen later during i40e_open() and old state gets printed. The actual link state doesn't get updated in i40e_close() or i40e_open() but when i40e_handle_link_event is called inside i40e_clean_adminq_subtask. This change allows i40e_print_link_message() to be called when interface is going down and keeps the state information updated. Signed-off-by: NSudheer Mogilappagari <sudheer.mogilappagari@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Sudheer Mogilappagari 提交于
In current driver, when ifconfig ethx up is done, the link state doesn't transition to UP inside i40e_open(). It changes after AQ command response is handled in i40e_handle_link_event(). When pf->hw.phy.link_info.link_info is DOWN inside i40e_open(), The state is transient and invalid. So log message gets printed based on incorrect info (i.e link_info and an_info). This commit removes check for unqualified module inside i40e_up_complete(). The existing check in i40e_handle_link_event() logs the error message based on correct link state information. Signed-off-by: NSudheer Mogilappagari <sudheer.mogilappagari@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Jacob Keller 提交于
This value is not calculating bytes_per_int, which would actually just be bytes/ITR_COUNTDOWN_START, but rather it's calculating bytes/usecs. Rename the variable for clarity so that future developers understand what the value is actually calculating. Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Tested-by: NAndrew Bowers <andrewx.bowers@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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- 29 9月, 2017 6 次提交
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由 David Ahern 提交于
fib_check_nh does not use the fib_info arg; remove t. Signed-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David Ahern 提交于
fib_weight in fib_info is set but not used. Remove it and the helpers for setting it. Signed-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Martin KaFai Lau says: ==================== bpf: Extend bpf_{prog,map}_info This patch series adds more fields to bpf_prog_info and bpf_map_info. Please see individual patch for details. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Martin KaFai Lau 提交于
This patch tests newly added fields of the bpf_attr, bpf_prog_info and bpf_map_info. Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NAlexei Starovoitov <ast@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Martin KaFai Lau 提交于
This patch swaps the checking order. It now checks the map_info first and then prog_info. It is a prep work for adding test to the newly added fields (the map_ids of prog_info field in particular). Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NAlexei Starovoitov <ast@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Martin KaFai Lau 提交于
This patch extends the libbpf to provide API support to allow specifying BPF object name. In tools/lib/bpf/libbpf, the C symbol of the function and the map is used. Regarding section name, all maps are under the same section named "maps". Hence, section name is not a good choice for map's name. To be consistent with map, bpf_prog also follows and uses its function symbol as the prog's name. This patch adds logic to collect function's symbols in libbpf. There is existing codes to collect the map's symbols and no change is needed. The bpf_load_program_name() and bpf_map_create_name() are added to take the name argument. For the other bpf_map_create_xxx() variants, a name argument is directly added to them. In samples/bpf, bpf_load.c in particular, the symbol is also used as the map's name and the map symbols has already been collected in the existing code. For bpf_prog, bpf_load.c does not collect the function symbol name. We can consider to collect them later if there is a need to continue supporting the bpf_load.c. Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NAlexei Starovoitov <ast@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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