- 07 12月, 2016 8 次提交
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由 Tomasz Nowicki 提交于
ThunderX pass1.x requires to emulate the EA headers for on-chip devices hence it has to use custom pci_thunder_ecam_ops for accessing PCI config space (pci-thunder-ecam.c). Add new entries to MCFG quirk array where it can be applied while probing ACPI based PCI host controller. ThunderX pass1.x is using the same way for accessing off-chip devices (so-called PEM) as silicon pass-2.x so we need to add PEM quirk entries too. Quirk is considered for ThunderX silicon pass1.x only which is identified via MCFG revision 2. ThunderX pass 1.x requires the following accessors: NUMA node 0 PCI segments 0- 3: pci_thunder_ecam_ops (MCFG quirk) NUMA node 0 PCI segments 4- 9: thunder_pem_ecam_ops (MCFG quirk) NUMA node 1 PCI segments 10-13: pci_thunder_ecam_ops (MCFG quirk) NUMA node 1 PCI segments 14-19: thunder_pem_ecam_ops (MCFG quirk) [bhelgaas: change Makefile/ifdefs so quirk doesn't depend on CONFIG_PCI_HOST_THUNDER_ECAM] Signed-off-by: NTomasz Nowicki <tn@semihalf.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Tomasz Nowicki 提交于
ThunderX PCIe controller to off-chip devices (so-called PEM) is not fully compliant with ECAM standard. It uses non-standard configuration space accessors (see thunder_pem_ecam_ops) and custom configuration space granulation (see bus_shift = 24). In order to access configuration space and probe PEM as ACPI-based PCI host controller we need to add MCFG quirk infrastructure. This involves: 1. A new thunder_pem_acpi_init() init function to locate PEM-specific register ranges using ACPI. 2. Export PEM thunder_pem_ecam_ops structure so it is visible to MCFG quirk code. 3. New quirk entries for each PEM segment. Each contains platform IDs, mentioned thunder_pem_ecam_ops and CFG resources. Quirk is considered for ThunderX silicon pass2.x only which is identified via MCFG revision 1. ThunderX pass 2.x requires the following accessors: NUMA Node 0 PCI segments 0- 3: pci_generic_ecam_ops (ECAM-compliant) NUMA Node 0 PCI segments 4- 9: thunder_pem_ecam_ops (MCFG quirk) NUMA Node 1 PCI segments 10-13: pci_generic_ecam_ops (ECAM-compliant) NUMA Node 1 PCI segments 14-19: thunder_pem_ecam_ops (MCFG quirk) [bhelgaas: adapt to use acpi_get_rc_resources(), update Makefile/ifdefs so quirk doesn't depend on CONFIG_PCI_HOST_THUNDER_PEM] Signed-off-by: NTomasz Nowicki <tn@semihalf.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Pull the register resource lookup out of thunder_pem_init() so we can easily add a corresponding lookup using ACPI. No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Dongdong Liu 提交于
The PCIe controller in Hip05/Hip06/Hip07 SoCs is not completely ECAM-compliant. It is non-ECAM only for the RC bus config space; for any other bus underneath the root bus it does support ECAM access. Add specific quirks for PCI config space accessors. This involves: 1. New initialization call hisi_pcie_init() to obtain RC base addresses from PNP0C02 at the root of the ACPI namespace (under \_SB). 2. New entry in common quirk array. [bhelgaas: move to pcie-hisi.c and change Makefile/ifdefs so quirk doesn't depend on CONFIG_PCI_HISI] Signed-off-by: NDongdong Liu <liudongdong3@huawei.com> Signed-off-by: NGabriele Paoloni <gabriele.paoloni@huawei.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Christopher Covington 提交于
The Qualcomm Technologies QDF2432 SoC does not support accesses smaller than 32 bits to the PCI configuration space. Register the appropriate quirk. [bhelgaas: add QCOM_ECAM32 macro, ifdef for ACPI and PCI_QUIRKS] Signed-off-by: NChristopher Covington <cov@codeaurora.org> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Dongdong Liu 提交于
The acpi_get_rc_resources() is used to get the RC register address that can not be described in MCFG. It takes the _HID & segment to look for and outputs the RC address resource. Use PNP0C02 devices to describe such RC address resource. Use _UID to match segment to tell which root bus the PNP0C02 resource belongs to. [bhelgaas: add dev argument, wrap in #ifdef CONFIG_PCI_QUIRKS] Signed-off-by: NDongdong Liu <liudongdong3@huawei.com> Signed-off-by: NTomasz Nowicki <tn@semihalf.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Tomasz Nowicki 提交于
The PCIe spec (r3.0, sec 7.2.2) specifies an "Enhanced Configuration Access Mechanism" (ECAM) for memory-mapped access to configuration space. ECAM is required for PCIe systems unless there's a standard firmware interface for config access. In the absence of a firmware interface, we use pci_generic_ecam_ops, and on ACPI systems, we discover the ECAM space via the MCFG table and/or the _CBA method. Unfortunately some systems provide MCFG but don't implement ECAM according to spec, so we need a mechanism for quirks to make those systems work. Add an MCFG quirk mechanism to override the config accessor functions and/or the memory-mapped address space. A quirk is selected if it matches all of the following: - OEM ID - OEM Table ID - OEM Revision - PCI segment (from _SEG) - PCI bus number range (from _CRS, wildcard allowed) If the quirk specifies config accessor functions or a memory-mapped address range, these override the defaults. [bhelgaas: changelog, reorder quirk matching, fix oem_revision typo per Duc, add under #ifdef CONFIG_PCI_QUIRKS] Signed-off-by: NTomasz Nowicki <tn@semihalf.com> Signed-off-by: NDongdong Liu <liudongdong3@huawei.com> Signed-off-by: NChristopher Covington <cov@codeaurora.org> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Tomasz Nowicki 提交于
pci_mcfg_lookup() is the external interface to the generic MCFG code. Previously it merely looked up the ECAM base address for a given domain and bus range. We want a way to add MCFG quirks, some of which may require special config accessors and adjustments to the ECAM address range. Extend pci_mcfg_lookup() so it can return a pointer to a pci_ecam_ops structure and a struct resource for the ECAM address space. For now, it always returns &pci_generic_ecam_ops (the standard accessor) and the resource described by the MCFG. No functional changes intended. [bhelgaas: changelog] Signed-off-by: NTomasz Nowicki <tn@semihalf.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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- 02 12月, 2016 1 次提交
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由 Bjorn Helgaas 提交于
Add acpi_resource_consumer(). This takes a struct resource and searches the ACPI namespace for a device whose current resource settings (_CRS) includes the resource. It returns the device if it exists, or NULL if no device uses the resource. If more than one device uses the resource (this may happen in the case of bridges), acpi_resource_consumer() returns the first one found by acpi_get_devices() in its modified depth-first walk of the namespace. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 15 10月, 2016 10 次提交
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由 Ram Amrani 提交于
Add error handling support. Register ib device with ib stack. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Add support for GSI over light L2. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Add light L2 interface for RoCE. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Implement fastpath verbs like ib_send_post, ib_post_recv and ib_poll_cq. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Add support for user, dma and memory regions registration. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Add support for Queue Pair verbs which adds, deletes, modifies and queries Queue Pairs. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Add support for protection domain and completion queue verbs. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Add support for ucontext, query port, add and del gid verbs. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Allocate and setup RoCE resources, interrupts and completion queues. Adds device attributes. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ram Amrani 提交于
Adds a skeletal implementation of the qed* RoCE driver - basically the ability to communicate with the qede driver and receive notifications from it regarding various init/exit events. Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 14 10月, 2016 4 次提交
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由 Hoan Tran 提交于
The desired_perf is an abstract performance number. Its value should be in the range of [lowest perf, highest perf] of CPPC. The correct calculation is desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz And cppc_cpufreq_set_target() returns if desired_perf is exactly the same with the old perf. Signed-off-by: NHoan Tran <hotran@apm.com> Reviewed-by: NPrashanth Prakash <pprakash@codeaurora.org> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Tobias Klauser 提交于
The dev parameter passed to __axienet_device_reset() is not used inside the function, so remove it. Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Reviewed-by: NMichal Simek <michal.simek@xilinx.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Dan Carpenter 提交于
This is supposed to loop 1000 times and then give up. The problem is it's a post-op and after the loop we test if "loop" is zero when really it would be -1. Fix this by making it a pre-op. Fixes: 1b7c55c4 ("liquidio: CN23XX queue manipulation") Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Andrew Lunn 提交于
The phy_start() is used to indicate the PHY is now ready to do its work. The state is changed, normally to PHY_UP which means that both the MAC and the PHY are ready. If the phy driver is using polling, when the next poll happens, the state machine notices the PHY is now in PHY_UP, and kicks off auto-negotiation, if needed. If however, the PHY is using interrupts, there is no polling. The phy is stuck in PHY_UP until the next interrupt comes along. And there is no reason for the PHY to interrupt. Have phy_start() schedule the state machine to run, which both speeds up the polling use case, and makes the interrupt use case actually work. This problems exists whenever there is a state change which will not cause an interrupt. Trigger the state machine in these cases, e.g. phy_error(). Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Cc: Kyle Roeschley <kyle.roeschley@ni.com> Tested-by: NKyle Roeschley <kyle.roeschley@ni.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 10月, 2016 17 次提交
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由 David S. Miller 提交于
Based upon v2 of Stephen's patch. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnd Bergmann 提交于
Wiht the latest rework of the xen-netback driver, we get a warning on ARM about the types passed into min(): drivers/net/xen-netback/rx.c: In function 'xenvif_rx_next_chunk': include/linux/kernel.h:739:16: error: comparison of distinct pointer types lacks a cast [-Werror] The reason is that XEN_PAGE_SIZE is not size_t here. There is no actual bug, and we can easily avoid the warning using the min_t() macro instead of min(). Fixes: eb1723a2 ("xen-netback: refactor guest rx") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NPaul Durrant <paul.durrant@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Giuseppe CAVALLARO 提交于
This patch fixes a problem when propagated the failure of ptp_clock_register to open function. Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre TORGUE <alexandre.torgue@st.com> Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Giuseppe CAVALLARO 提交于
The gmac 4.x version has not extended descriptors (that are available on 3.x instead of). While initializing the PTP module, the advanced PTP was enabled in case of extended descriptors. This cannot be applied for 4.x version where only the hardware capability register has to show if the feature is present. Patch also adds some extra netdev_(debug/inof) to better dump the configuration. Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre TORGUE <alexandre.torgue@st.com> Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnd Bergmann 提交于
The definition of qed_get_rdma_ops() is not a prototype unless we add 'void' here, as indicated by this W=1 warning: drivers/net/ethernet/qlogic/qed/qed_roce.c: In function ‘qed_get_rdma_ops’: drivers/net/ethernet/qlogic/qed/qed_roce.c:2950:28: error: old-style function definition [-Werror=old-style-definition] Fixes: abd49676 ("qed: Add RoCE ll2 & GSI support") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NYuval Mintz <Yuval.Mintz@caviumnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 stephen hemminger 提交于
The software calculation of UDP checksum in Netvsc driver was only handling IPv4 case. By using skb_checksum_help() instead all protocols can be handled. Rearrange code to eliminate goto and look like other drivers. This is a temporary solution; recent versions of Window Server etc do support UDP checksum offload, just need to do the appropriate negotiation with host to validate before using. This will be done in later patch. Please queue this for -stable as well. Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David Vrabel 提交于
If a VIF has been ready for rx_stall_timeout (60s by default) and an Rx ring is drained of all requests an Rx stall will be incorrectly detected. When this occurs and the guest Rx queue is empty, the Rx ring's event index will not be set and the frontend will not raise an event when new requests are placed on the ring, permanently stalling the VIF. This is a regression introduced by eb1723a2 (xen-netback: refactor guest rx). Fix this by reinstating the setting of queue->last_rx_time when placing a packet onto the guest Rx ring. Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com> Reviewed-by: NPaul Durrant <paul.durrant@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vlad Tsyrklevich 提交于
The reserved field precise_offset->rsv is not cleared before being copied to user space, leaking kernel stack memory. Clear the struct before it's copied. Signed-off-by: NVlad Tsyrklevich <vlad@tsyrklevich.net> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
I am hitting this in mlx5: drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function reclaim_pages_cmd.clone.0: drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:346: error: call to __compiletime_assert_346 declared with attribute error: BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_out, pas[i]) % 64 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function give_pages: drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:291: error: call to __compiletime_assert_291 declared with attribute error: BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_in, pas[i]) % 64 Problem is that this is doing a BUILD_BUG_ON on a non-constant expression because of trying to take offset of pas[i] in the structure. Fix is to create MLX5_ARRAY_SET64 that takes an additional argument that is the field index to separate between BUILD_BUG_ON on the array constant field and the indexed field to assign the value to. There are two callers of MLX5_SET64 that are trying to get a variable offset, change those to call MLX5_ARRAY_SET64 passing 'pas' and 'i' as the arguments to use in the offset check and the indexed value assignment. Fixes: a533ed5e ("net/mlx5: Pages management commands via mlx5 ifc") Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Bjørn Mork 提交于
The Quectel EC21 and EC25 need the same "set DTR" request as devices based on the MDM9230 chipset, but has no USB3 support. Our best guess is that the "set DTR" functionality depends on chipset and/or baseband firmware generation. But USB3 is still an optional feature. Since we cannot enable this unconditionally for all older devices, and there doesn't appear to be anything we can use in the USB descriptors to identify these chips, we are forced to use a device specific quirk flag. Reported-and-tested-by: NSebastian Sjoholm <sebastian.sjoholm@gmail.com> Signed-off-by: NBjørn Mork <bjorn@mork.no> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Wei Yongjun 提交于
Since we will remove items off the list using list_del() we need to use a safe version of the list_for_each_entry() macro aptly named list_for_each_entry_safe(). Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com> Acked-by: NYuval Mintz <Yuval.Mintz@caviumnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnd Bergmann 提交于
While build testing with randconfig on x86, I ran into this warning that appears to have been around forever drivers/net/ethernet/ti/tlan.c: In function ‘tlan_probe1’: drivers/net/ethernet/ti/tlan.c:614:1: error: label ‘err_out’ defined but not used [-Werror=unused-label] This can be trivially avoided by just moving the label into the existing #ifdef. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Paul Durrant 提交于
It is useful to be able to see the hash configuration when running tests. This patch adds a debugfs node for that purpose. The original version of this patch (commit c0c64c15) was reverted due to build failures caused by a conflict with commit 0364a882 ("xen-netback: switch to threaded irq for control ring"). This new version of the patch is nearly identical to the original, the only difference being that creation of the debugfs node is predicated on 'ctrl_irq' being non-zero rather then the now non-existent 'ctrl_task'. Signed-off-by: NPaul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David S. Miller <davem@davemloft.net> Acked-by: NWei Liu <wei.liu2@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Rafael J. Wysocki 提交于
Commit d352cf47 (cpufreq: conservative: Do not use transition notifications) overlooked the case when the "frequency step" used by the conservative governor is small relative to the distances between the available frequencies and broke the algorithm by using policy->cur instead of the previously requested frequency when computing the next one. As a result, the governor may not be able to go outside of a narrow range between two consecutive available frequencies. Fix the problem by making the governor save the previously requested frequency and select the next one relative that value (unless it is out of range, in which case policy->cur will be used instead). Fixes: d352cf47 (cpufreq: conservative: Do not use transition notifications) Link: https://bugzilla.kernel.org/show_bug.cgi?id=177171Reported-and-tested-by: NAleksey Rybalkin <aleksey@rybalkin.org> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Cc: 4.8+ <stable@vger.kernel.org> # 4.8+ Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Joe Perches 提交于
acpi_os_vprintf currently always uses a KERN_CONT prefix which may be followed immediately by a proper KERN_<LEVEL>. Check if the buffer already has a KERN_<LEVEL> at the start of the buffer and avoid the unnecessary KERN_CONT. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Juergen Gross 提交于
When running as Xen dom0 a special processor_aggregator driver is needed. Don't register the standard driver in this case. Without that check an error message: "Error: Driver 'processor_aggregator' is already registered, aborting..." will be displayed. Signed-off-by: NJuergen Gross <jgross@suse.com> [ rjw: Minor fixups ] Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Rafael J. Wysocki 提交于
It looks like the name of struct pstate_adjust_policy was updated without updating its kerneldoc comment accordingly, so fix that mistake. Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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