- 01 11月, 2013 1 次提交
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由 Alexandre Rames 提交于
When using firmware assisted TSO, we use a single DMA mapping for the linear area of a TSO skb. We still have to segment the super-packet and insert a descriptor containing the original headers before each segment of payload, so we can unmap the linear area only after the last segment is completed. The unmapping information for the linear area is therefore associated with the last header descriptor. We calculate the DMA address to unmap from using the map length and the invariant that the end of the DMA mapping matches the end of the data referenced by the last descriptor. But this invariant is broken when there is TCP payload in the linear area. Fix this by adding and using an explicit dma_offset field. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 08 10月, 2013 1 次提交
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由 Ben Hutchings 提交于
Although we do not yet enable multiple PFs per port, it is possible that a board will be reconfigured to enable them while the driver has not yet been updated to fully support this. The most obvious problem is that multiple functions may try to set conflicting link settings. But we will also run into trouble if the firmware doesn't consider us fully trusted. So, abort probing unless both the LinkCtrl and Trusted flags are set for this function. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 05 10月, 2013 5 次提交
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由 Edward Cree 提交于
Recognise the new Packet Memory and RX Data Path counters. The following counters are added: rx_pm_{trunc,discard}_bb_overflow - burst buffer overflowed. This should not occur if BB correctly configured. rx_pm_{trunc,discard}_vfifo_full - not enough space in packet memory. May indicate RX performance problems. rx_pm_{trunc,discard}_qbb - dropped by 802.1Qbb early discard mechanism. Since Qbb is not supported at present, this should not occur. rx_pm_discard_mapping - 802.1p priority configured to be dropped. This should not occur in normal operation. rx_dp_q_disabled_packets - packet was to be delivered to a queue but queue is disabled. May indicate misconfiguration by the driver. rx_dp_di_dropped_packets - parser-dispatcher indicated that a packet should be dropped. rx_dp_streaming_packets - packet was sent to the RXDP streaming bus, ie. a filter directed the packet to the MCPU. rx_dp_emerg_{fetch,wait} - RX datapath had to wait for descriptors to be loaded. Indicates performance problems but not drops. These are only provided if the MC firmware has the PM_AND_RXDP_COUNTERS capability. Otherwise, mask them out. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Matthew Slattery 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Edward Cree 提交于
Previously, efx_ef10_stat_mask returned a static const unsigned long[], which meant that each possible mask had to be declared statically with STAT_MASK_BITMAP. Since adding a condition would double the size of the decision tree, we now create the bitmask dynamically. To do this, we have two functions efx_ef10_raw_stat_mask, which returns a u64, and efx_ef10_get_stat_mask, which fills in an unsigned long * argument. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Edward Cree 提交于
The indices in nic_data->stats need to match the EF10_STAT_whatever enum values. In efx_nic_update_stats, only mask; gaps are removed in efx_ef10_update_stats. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Jon Cooper 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 25 9月, 2013 1 次提交
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由 Joe Perches 提交于
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: NJoe Perches <joe@perches.com>
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- 21 9月, 2013 12 次提交
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由 Ben Hutchings 提交于
Extend efx_filter_rfs() to map TCP/IPv6 and UDP/IPv6 flows into efx_filter_spec. These are only supported on EF10; on Falcon and Siena they will be rejected by efx_farch_filter_from_gen_spec(). Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Jon Cooper 提交于
Sufficiently small linear packets can be copied into the PIO buffer with a single call to memcpy_toio(). Non-linear packets require an intermediate cache-line-sized buffer. [bwh: I wrote the first version of this, but Jon did the hard work to handle non-linear packets.] Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Try to allocate a segment of PIO buffer to each TX channel. If allocation fails, log an error but continue. PIO buffers must be mapped separately from the NIC registers, with write-combining enabled. Where the host page size is 4K, we could potentially map each VI's registers and PIO buffer separately. However, this would add significant complexity, and we also need to support architectures such as POWER which have a greater page size. So make a single contiguous write-combining mapping after the uncacheable mapping, aligned to the host page size, and link PIO buffers there. Where necessary, allocate additional VIs within the write-combining mapping purely for access to PIO buffers. Link all TX buffers to TX queues and the additional VIs in efx_ef10_dimension_resources() and in efx_ef10_init_nic() after an MC reboot. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Segmentation remains in the driver, but we generate option descriptors describing the required packet editing rather than making our own copies. Reduce tso_state::ipv4_id to 16 bits, so it doesn't overflow into the TCP_FLAGS field of the option descriptor. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
There are very few readable registers, but we may as well report them. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Fengguang Wu 提交于
Signed-off-by: NFengguang Wu <fengguang.wu@intel.com> Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Fengguang Wu 提交于
Signed-off-by: NFengguang Wu <fengguang.wu@intel.com> Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Daniel Pieczko 提交于
The SFC9120 MC firmware often takes longer than 20ms to reboot and update the warm boot count in BIU_MC_SFT_STATUS_REG. A timeout of 250ms is very generous for an MC reboot. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Daniel Pieczko 提交于
Scheduling a reset following an MC reboot event before waiting for reboot to complete results in a race that can lead to a state where must_realloc_vis is false in efx_ef10_fini_dmaq() but the VIs have been destroyed during the MC reboot. To avoid MC errors when trying to remove VIs that do not exist, wait for the MC reboot to complete before scheduling the reset. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 11 9月, 2013 4 次提交
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由 Ben Hutchings 提交于
After an MC reboot, the datapath may be running a different firmware variant and have different capabilities. It is critical that we know the current capabilities so that we can pass valid flags to MC_CMD_INIT_EVQ. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Rename efx_ef10_init_capabilities() to the more specific efx_ef10_init_datapath_caps(). Stop accepting short responses to MC_CMD_GET_CAPABILITIES; we don't need to support pre-production firmware. Move the check for RX prefix support from efx_ef10_probe() into efx_ef10_init_datapath_caps() and use consistent error messages for missing TSO support and missing RX prefix support. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
If the MC reboots then the stats it reports to us will have been reset. We need to reset ours to get efx_update_diff_stat() working properly. (This is a re-run of commit 876be083 'sfc: Reset driver's MAC stats after MC reboot seen'.) Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Unlike Siena where timestamping is provided by a peripheral, EF10 delivers RX timestamps in the packet prefix. However the driver doesn't yet support this. We are also creating a PHC device for each EF10 function, even though the clock is really shared between all of them. Disable hardware PTP/timestamping support until it's complete. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 06 9月, 2013 1 次提交
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由 Ben Hutchings 提交于
Accept and handle 40G link events. Accept ethtool link settings of speed == 40000 && duplex, and set the appropriate MCDI PHY capability. This does not include reporting of 40G media types, as those have not yet been assigned numbers in the MCDI protocol. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 05 9月, 2013 1 次提交
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由 Dan Carpenter 提交于
It upsets static analyzers when we don't check for allocation failure. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 8月, 2013 14 次提交
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由 Joe Perches 提交于
__GFP_ZERO is an uncommon flag and perhaps is better not used. static inline dma_zalloc_coherent exists so convert the uses of dma_alloc_coherent with __GFP_ZERO to the more common kernel style with zalloc. Remove memset from the static inline dma_zalloc_coherent and add just one use of __GFP_ZERO instead. Trivially reduces the size of the existing uses of dma_zalloc_coherent. Realign arguments as appropriate. Signed-off-by: NJoe Perches <joe@perches.com> Acked-by: NNeil Horman <nhorman@tuxdriver.com> Acked-by: NJesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Update the dates for files that have been added to in 2012-2013. Drop the 'Solarstorm' brand name that's still lingering here. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
This adds support for the EF10 network controller architecture and the SFC9100 family, starting with SFC9120 'Farmingdale', and bumps the driver version to 4.0. New features in the SFC9100 family include: - Flexible allocation of internal resources to PCIe physical and virtual functions under firmware control - RX event merging to reduce DMA writes at high packet rates - Integrated RX timestamping - PIO buffers for lower TX latency - Firmware-driven data path that supports additional offload features and filter types - Delivery of packets between functions and to multiple recipients, allowing firmware to implement a vswitch - Multiple RX flow hash (RSS) contexts with their own hash keys and indirection tables - 40G MAC (single port only) ...not all of which are enabled in this initial driver or the initial firmware release. Much of the new code is by Jon Cooper. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
This should be done during MCDI initialisation for any NIC. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Matthew Slattery 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Also update comments and assertions in io.h: - EF10 does not have a general BIU collector and does not have the bug affecting TIMER_COMMAND_REG[0] on Falcon/Siena - The WPTR field moved within RX_DESC_UPD_REG and TX_DESC_UPD_REG. Adjust efx_writed_page() accordingly Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
The TX path firmware for EF10 supports 'option descriptors' to control offloads and various other features. Add a flag and field for these in struct efx_tx_buffer, and don't treat them as DMA descriptors on completion. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Alexandre Rames 提交于
On EF10, the firmware will initiate a queue flush in certain error cases. We need to accept that flush events might appear at any time after a queue has been initialised, not just when we try to flush them. We can handle Falcon-architecture in just the same way. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Jon Cooper 提交于
RX DMA scatter is always enabled on EF10. Adjust the common RX completion handling to allow for this. RX completion events on EF10 include the length used from a single descriptor, not the cumulative length used. Add a field to struct efx_rx_queue to hold the cumulative length. [bwh: Also fix a related comment] Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Jon Cooper 提交于
On EF10, event queue initialisation requires an MCDI request which may return failure. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Add the efx_filter_is_mc_recip() function to decide whether a filter is for a multicast recipient and can coexist with other filters with the same match values. Update efx_filter_insert_filter() kernel-doc to explain the conditions for this. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
This will allow use of MCDI from the data path, in particular for accelerated RFS. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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