- 16 Feb, 2009 37 commits
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Eilon Greenstein authored
Signed-off-by:
Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eilon Greenstein authored
When enabling many debug prints, it can take a while before processing an event. To ease the debug process, allow bigger timeout before giving up Signed-off-by:
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Eilon Greenstein authored
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Eilon Greenstein authored
Allows better debug capabilities if the user wants to force an MRRS value Signed-off-by:
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Eilon Greenstein authored
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Eilon Greenstein authored
Supporting non-default pre-emphasis settings for the internal and some external PHYs Signed-off-by:
Yaniv Rosner <yanivr@broadcom.com> Signed-off-by:
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Eilon Greenstein authored
Fixing the function name Signed-off-by:
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Eilon Greenstein authored
This code is disabled, so removing it to avoid confusion Signed-off-by:
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Eilon Greenstein authored
This 1G interface (on top of the 4 lanes 10G interface) requires additional setting to work in CL45 Signed-off-by:
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Eilon Greenstein authored
The NIG_ENABLE does not reset the emac. Replace it with explicit reset Signed-off-by:
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Eilon Greenstein authored
Some PHYs (like the BCM8726) FW version cannot be read after activating the PHY, so we need to save this information Signed-off-by:
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Eilon Greenstein authored
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Eilon Greenstein authored
Some dual port PHY require HW lock since they are used by both interfaces (different driver instances). Since this list is getting longer, update a parameter at load time instead of calculating it on runtime Signed-off-by:
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Eilon Greenstein authored
Also adding the ability to recognize the optic module and disable it if it is not authorized for safety reasons - since this feature might upset some users which are willing to take the risk, it is optional and can be disabled by setting an nvram bit (or a trivial driver patch to set this bit). This dual port PHY requires special handling if the ports are swapped. Signed-off-by:
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Eilon Greenstein authored
A GPIO is used with the 8726 PHY. Adding the GPIO related functions in this Signed-off-by:
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Eilon Greenstein authored
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Eilon Greenstein authored
There are too many different board types and this field is not scalable. Removing it and making decisions according to other fields Signed-off-by:
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Eilon Greenstein authored
Setting better HW thresholds and enabling FW capabilities for better enforcement. Also set the HW to more efficiently use the internal buffers if this is a single port design Signed-off-by:
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Eilon Greenstein authored
Some of the configuration can be set when loading the device and shouldn't be re-calculated after each link up indication since it is not dependent on the link speed Signed-off-by:
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Eilon Greenstein authored
Should be called for all incoming packets and not just for GRO packets Signed-off-by:
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Eilon Greenstein authored
Re-ordering the statistics to enhance readability and adding per queue statistics (available via ethtool -S) Signed-off-by:
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Eilon Greenstein authored
This check is unreliable since latest MC can issue warnings on rare occasions which are not fatal errors Signed-off-by:
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Eilon Greenstein authored
Before initializing the chip after iSCSI boot, the interrupts of the function that was used to boot must be disabled. That means that the driver needs to set the chip as if it is the iSCSI PCI function - this bug is exposed only with MSI Signed-off-by:
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Eilon Greenstein authored
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Eilon Greenstein authored
Enabling MSI on top of MSI-X and INTA. Also changing the module parameter to allow choosing INTA or MSI even when MSI-X is available. The default status block should not be reversed for endianity. Since MSI can issue re-configuration, the interrupt disable function now requires mmiowb Signed-off-by:
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Eilon Greenstein authored
Adding Tx multi-queue and enabling multi-queue by default Signed-off-by:
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Eilon Greenstein authored
This is the FW blob and the relevant definitions without any logic. It also contains the minimal mandatory code changes to work with this FW but it does not contain enabling of the new features that this FW provides. This FW is needed for: - More efficient multi-queue - per queue statistics - Big-endian issue with MSI - Improved pause response Signed-off-by:
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Patrick Ohly authored
Both TX and RX hardware time stamping are implemented. Due to hardware limitations it is not possible to verify reliably which packet was time stamped when multiple were pending for sending; this could be solved by only allowing one packet marked for hardware time stamping into the queue (not implemented yet). RX time stamping relies on the flag in the packet descriptor which marks packets that were time stamped. In "all packet" mode this flag is not set. TODO: also support that mode (even though it'll suffer from race conditions). Signed-off-by:
John Ronciak <john.ronciak@intel.com> Signed-off-by:
Patrick Ohly <patrick.ohly@intel.com> Signed-off-by:
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Patrick Ohly authored
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Patrick Ohly authored
Adds the register definitions and code to read the time register. Signed-off-by:
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Patrick Ohly authored
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Patrick Ohly authored
Instructions for time stamping outgoing packets are take from the socket layer and later copied into the new skb. Signed-off-by:
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Patrick Ohly authored
The overlap with the old SO_TIMESTAMP[NS] options is handled so that time stamping in software (net_enable_timestamp()) is enabled when SO_TIMESTAMP[NS] and/or SO_TIMESTAMPING_RX_SOFTWARE is set. It's disabled if all of these are off. Signed-off-by:
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Patrick Ohly authored
The additional per-packet information (16 bytes for time stamps, 1 byte for flags) is stored for all packets in the skb_shared_info struct. This implementation detail is hidden from users of that information via skb_* accessor functions. A separate struct resp. union is used for the additional information so that it can be stored/copied easily outside of skb_shared_info. Compared to previous implementations (reusing the tstamp field depending on the context, optional additional structures) this is the simplest solution. It does not extend sk_buff itself. TX time stamping is implemented in software if the device driver doesn't support hardware time stamping. The new semantic for hardware/software time stamping around ndo_start_xmit() is based on two assumptions about existing network device drivers which don't support hardware time stamping and know nothing about it: - they leave the new skb_shared_tx unmodified - the keep the connection to the originating socket in skb->sk alive, i.e., don't call skb_orphan() Given that skb_shared_tx is new, the first assumption is safe. The second is only true for some drivers. As a result, software TX time stamping currently works with the bnx2 driver, but not with the unmodified igb driver (the two drivers this patch series was tested with). Signed-off-by:
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Patrick Ohly authored
User space can request hardware and/or software time stamping. Reporting of the result(s) via a new control message is enabled separately for each field in the message because some of the fields may require additional computation and thus cause overhead. User space can tell the different kinds of time stamps apart and choose what suits its needs. When a TX timestamp operation is requested, the TX skb will be cloned and the clone will be time stamped (in hardware or software) and added to the socket error queue of the skb, if the skb has a socket associated with it. The actual TX timestamp will reach userspace as a RX timestamp on the cloned packet. If timestamping is requested and no timestamping is done in the device driver (potentially this may use hardware timestamping), it will be done in software after the device's start_hard_xmit routine. Signed-off-by:
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Patrick Ohly authored
Mapping from a struct timecounter to a time returned by functions like ktime_get_real() is implemented. This is sufficient to use this code in a network device driver which wants to support hardware time stamping and transformation of hardware time stamps to system time. The interface could have been made more versatile by not depending on a time counter, but this wasn't done to avoid writing glue code elsewhere. The method implemented here is the one used and analyzed under the name "assisted PTP" in the LCI PTP paper: http://www.linuxclustersinstitute.org/conferences/archive/2008/PDF/Ohly_92221.pdfAcked-by:
John Stultz <johnstul@us.ibm.com> Signed-off-by:
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Patrick Ohly authored
So far struct clocksource acted as the interface between time/timekeeping.c and hardware. This patch generalizes the concept so that a similar interface can also be used in other contexts. For that it introduces new structures and related functions *without* touching the existing struct clocksource. The reasons for adding these new structures to clocksource.[ch] are * the APIs are clearly related * struct clocksource could be cleaned up to use the new structs * avoids proliferation of files with similar names (timesource.h? timecounter.h?) As outlined in the discussion with John Stultz, this patch adds * struct cyclecounter: stateless API to hardware which counts clock cycles * struct timecounter: stateful utility code built on a cyclecounter which provides a nanosecond counter * only the function to read the nanosecond counter; deltas are used internally and not exposed to users of timecounter The code does no locking of the shared state. It must be called at least as often as the cycle counter wraps around to detect these wrap arounds. Both is the responsibility of the timecounter user. Acked-by:
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- 15 Feb, 2009 3 commits
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dave graham authored
Single-thread access must be ensured for ICH8 NVM and PHY operations. This synchronization is provided by the nvm_mutex. To assist in understanding the contexts from which this code could be reached, a WARN was output if the mutex was not going to be immediately acquirable (if !mutex_trylock()). The code has now been optimized, and we have verified that the few remaining mutex contentions are reasonable and non-blocking, and it is time to remove the mutex_trylock() and WARN messages. Signed-off-by:
dave graham <david.graham@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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David S. Miller authored
Conflicts: drivers/net/wireless/iwlwifi/iwl-agn.c drivers/net/wireless/iwlwifi/iwl3945-base.c
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