- 14 Mar, 2013 21 commits
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Arvind Bhushan authored
This patch defines the common operations to support multiple chips. It includes common header file modifications to support the current chips (T4 and T5). It also includes the following bug fixes: - reconfirms the rnode state after an implicit logo. - corrects the stats array size. - sets up and checks flags correctly when coming up as master and finding the card initialized Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Arvind Bhushan <arvindb@chelsio.com> Signed-off-by:
Naresh Kumar Inna <naresh@chelsio.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Arvind Bhushan authored
This patch creates a new file for T5 adapter operations. Signed-off-by:
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Arvind Bhushan authored
This patch separates T4 adapter operations into a new file. Signed-off-by:
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Vipul Pandya authored
T5 adapter does not support onchip queue memory. Present logic fails to allocate QP for T5 and returns an error. Also, if module parameter ocqp_support is zero then we are unable to allocate QP which should not be the case. Ideally if ocqp_support parameter is 0 or onchip queue support is disable then host QP should be allocated before returning an error. Signed-off-by:
Vipul Pandya <vipul@chelsio.com> Signed-off-by:
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Vipul Pandya authored
Always bump the tcam_full stat. Also, bump wr reply timeout to 30 seconds. Signed-off-by:
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Vipul Pandya authored
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Vipul Pandya authored
It enables direct DMA by HW to memory region PBL arrays and fast register PBL arrays from host memory, vs the T4 way of passing these arrays in the WR itself. The result is lower latency for memory registration, and larger PBL array support for fast register operations. This patch also updates ULP_TX_MEM_WRITE command fields for T5. Ordering bit of ULP_TX_MEM_WRITE is at bit position 22 in T5 and at 23 in T4. Signed-off-by:
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Vipul Pandya authored
Both DB Flow-Control and DB Coalescing are disabled by default on T5 Signed-off-by:
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Vipul Pandya authored
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Vipul Pandya authored
Adds support for Chelsio T5 adapter. Enables T5's Write Combining feature. Signed-off-by:
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Santosh Rastapur authored
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Santosh Rastapur <santosh@chelsio.com> Signed-off-by:
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Santosh Rastapur authored
All T5 adapters will only support VFs on PF0-3 despite the ability of the hardware to support them on PF4-7. This keeps our T4 and T5 adapters more similar which simplifies host driver software. Signed-off-by:
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Santosh Rastapur authored
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Santosh Rastapur authored
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Santosh Rastapur authored
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Santosh Rastapur authored
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Santosh Rastapur authored
This patch implements a low latency Write Combining (aka Write Coalescing) work request path. PCIE maps User Space Doorbell BAR2 region writes to the new interface to SGE. SGE pulls a new message from PCIE new interface and if its a coalesced write work request then pushes it for processing. This patch copies coalesced work request to memory mapped BAR2 space. Signed-off-by:
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Santosh Rastapur authored
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Santosh Rastapur authored
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Santosh Rastapur authored
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Santosh Rastapur authored
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- 13 Mar, 2013 10 commits
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Wei Yongjun authored
The variable dev is initialized but never used otherwise, so remove the unused variable. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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Wei Yongjun authored
Remove duplicated include. Signed-off-by:
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Shahed Shaikh authored
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Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by:
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Himanshu Madhani authored
QLogic applications use these callbacks to perform o NIC Partitioning (NPAR) configuration and management o Diagnostic tests o Flash access and updates Signed-off-by:
Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by:
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David S. Miller authored
Mugunthan V N says: ==================== This patch serires implements the following features in CPSW driver * get/set phy link settings * interrupt pacing * get phy id via ioctl cmd SIOCGMIIPHY Changes from initial version * Made active-slave common for cpts, ethtool and SIOCGMIIPHY ioctl * Cleaned CPSW DT binding documentation by seperating slave nodes under sub-section * implemented get phy id via ioctl cmd SIOCGMIIPHY ==================== Signed-off-by: -
Mugunthan V N authored
Implement get phy_id via ioctl SIOCGMIIPHY. In switch mode active phy_id is returned and in dual EMAC mode slave's specific phy_id is returned. Signed-off-by:
Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by:
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Mugunthan V N authored
This patch implements support for interrupt pacing block of CPSW via ethtool Inetrrupt pacing block is common of both the ethernet interface in dual emac mode Signed-off-by:
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Mugunthan V N authored
This patch implements get/set of the phy settings via ethtool apis Signed-off-by:
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Mugunthan V N authored
Change cpts_active_slave to active_slave so that the same DT property can be used to ethtool and SIOCGMIIPHY. CC: Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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Mugunthan V N authored
Move all the slave note properties to separate section to reduce the confusion between slave note properties and cpsw node properties Signed-off-by:
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- 12 Mar, 2013 9 commits
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David J. Choi authored
Implement to collect ethernet statistical information on ks8851_mll device. Signed-off-by:
David J. Choi <david.choi@micrel.com> Signed-off-by:
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Zhang Yanfei authored
remove cast for kmalloc/kzalloc return value. Signed-off-by:
Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: netdev@vger.kernel.org Signed-off-by:
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Zhang Yanfei authored
remove cast for kmalloc return value. Signed-off-by:
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Michael Stapelberg authored
This has been tested on a qnap TS-119P II. Note that enabling WOL with "ethtool -s eth0 wol g" is not enough; you also need to tell the PIC microcontroller inside the qnap that WOL should be enabled by sending 0xF2 with qcontrol(1) and you have to disable EUP ("Energy-using Products", a European power-saving thing) by sending 0xF4. Signed-off-by:Michael Stapelberg <michael@stapelberg.de> Signed-off-by:
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Michael Stapelberg authored
This allows ethernet drivers (such as the mv643xx_eth) to support Wake on LAN on platforms where PHY registers have to be configured for Wake on LAN (e.g. the Marvell Kirkwood based qnap TS-119P II). Signed-off-by:
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Nandita Dukkipati authored
This is the second of the TLP patch series; it augments the basic TLP algorithm with a loss detection scheme. This patch implements a mechanism for loss detection when a Tail loss probe retransmission plugs a hole thereby masking packet loss from the sender. The loss detection algorithm relies on counting TLP dupacks as outlined in Sec. 3 of: http://tools.ietf.org/html/draft-dukkipati-tcpm-tcp-loss-probe-01 The basic idea is: Sender keeps track of TLP "episode" upon retransmission of a TLP packet. An episode ends when the sender receives an ACK above the SND.NXT (tracked by tlp_high_seq) at the time of the episode. We want to make sure that before the episode ends the sender receives a "TLP dupack", indicating that the TLP retransmission was unnecessary, so there was no loss/hole that needed plugging. If the sender gets no TLP dupack before the end of the episode, then it reduces ssthresh and the congestion window, because the TLP packet arriving at the receiver probably plugged a hole. Signed-off-by:
Nandita Dukkipati <nanditad@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Nandita Dukkipati authored
This patch series implement the Tail loss probe (TLP) algorithm described in http://tools.ietf.org/html/draft-dukkipati-tcpm-tcp-loss-probe-01. The first patch implements the basic algorithm. TLP's goal is to reduce tail latency of short transactions. It achieves this by converting retransmission timeouts (RTOs) occuring due to tail losses (losses at end of transactions) into fast recovery. TLP transmits one packet in two round-trips when a connection is in Open state and isn't receiving any ACKs. The transmitted packet, aka loss probe, can be either new or a retransmission. When there is tail loss, the ACK from a loss probe triggers FACK/early-retransmit based fast recovery, thus avoiding a costly RTO. In the absence of loss, there is no change in the connection state. PTO stands for probe timeout. It is a timer event indicating that an ACK is overdue and triggers a loss probe packet. The PTO value is set to max(2*SRTT, 10ms) and is adjusted to account for delayed ACK timer when there is only one oustanding packet. TLP Algorithm On transmission of new data in Open state: -> packets_out > 1: schedule PTO in max(2*SRTT, 10ms). -> packets_out == 1: schedule PTO in max(2*RTT, 1.5*RTT + 200ms) -> PTO = min(PTO, RTO) Conditions for scheduling PTO: -> Connection is in Open state. -> Connection is either cwnd limited or no new data to send. -> Number of probes per tail loss episode is limited to one. -> Connection is SACK enabled. When PTO fires: new_segment_exists: -> transmit new segment. -> packets_out++. cwnd remains same. no_new_packet: -> retransmit the last segment. Its ACK triggers FACK or early retransmit based recovery. ACK path: -> rearm RTO at start of ACK processing. -> reschedule PTO if need be. In addition, the patch includes a small variation to the Early Retransmit (ER) algorithm, such that ER and TLP together can in principle recover any N-degree of tail loss through fast recovery. TLP is controlled by the same sysctl as ER, tcp_early_retrans sysctl. tcp_early_retrans==0; disables TLP and ER. ==1; enables RFC5827 ER. ==2; delayed ER. ==3; TLP and delayed ER. [DEFAULT] ==4; TLP only. The TLP patch series have been extensively tested on Google Web servers. It is most effective for short Web trasactions, where it reduced RTOs by 15% and improved HTTP response time (average by 6%, 99th percentile by 10%). The transmitted probes account for <0.5% of the overall transmissions. Signed-off-by:
Yuchung Cheng <ycheng@google.com> Signed-off-by:
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Fabio Estevam authored
Using devm_request_and_ioremap() can make the code cleaner and simpler. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
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Fabio Estevam authored
PCI header is not needed, so get rid of it. Signed-off-by:
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