- 14 Jun, 2019 25 commits
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David S. Miller authored
Julian Wiedmann says: ==================== s390/qeth: updates 2019-06-11 please apply the following patch series for qeth to net-next. This brings all sorts of cleanups and minor improvements, primarily for the control IO path. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Julian Wiedmann authored
We statically allocate 8 cmd buffers on the read channel, when the only IO left that's still using them is the long-running READ. Replace this with a single allocated cmd, that gets restarted whenever the READ completed. This introduces refcounting for allocated cmds, so that the READ cmd can survive the IO completion. Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
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Julian Wiedmann authored
The current IDX sequence first sends one WRITE cmd to activate the device, and then sends a second cmd that READs the response. Using qeth_alloc_cmd(), we can combine this into a single IO with two command-chained CCWs. Signed-off-by:
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Julian Wiedmann authored
The RCD code is the last remaining IO path that doesn't use the qeth_send_control_data() infrastructure. Doing so allows us to remove all sorts of custom state machinery and logic in the IRQ handler. Instead of introducing statically allocated cmd buffers for this single IO on the data channel, use the new qeth_alloc_cmd() helper. Signed-off-by:
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Julian Wiedmann authored
qeth currently uses a fixed set of statically allocated cmd buffers for the read and write IO channels. This (1) doesn't play well with the single RCD cmd we need to issue on the data channel, (2) doesn't provide the necessary flexibility for certain IDX improvements, and (3) is also rather wasteful since the buffers are idle most of the time. Add a new type of cmd buffer that is dynamically allocated, and keeps its ccw chain in the DMA data area. Since this touches most callers of qeth_setup_ccw(), also add a new CCW flags parameter for future usage. Signed-off-by:
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Julian Wiedmann authored
Each cmd buffer maintains a pointer to the IO channel that it was/will be issued on. So when dealing with cmd buffers, we don't need to pass around a separate channel pointer. Signed-off-by:
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Julian Wiedmann authored
The vast majority of SETUP-classified trace entries can be moved to their device-specific trace file. This reduces pollution of the global SETUP file, and provides a consistent trace view of all activity on the device. Signed-off-by:
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Julian Wiedmann authored
OSN currently provides a custom code path to submit IPA cmds, without waiting for the cmd response. Replace it with qeth_send_ipa_cmd(), which uses the common qeth_send_control_data() IO infrastructure. By setting a custom iob->callback, we can now provide feedback to the caller about whether the cmd has been successfully submitted to HW. Since the callback then immediately wakes up the reply-waiter object, we maintain the old behaviour of returning early without waiting for the response. Signed-off-by:
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Julian Wiedmann authored
The basic MPC initialization sequence is strictly sequential, and waiting for an available cmd buffer should never be necessary. So this change only affects the OSN path, where dangling waiters on an unbounded wait_event() are not desirable. Switch to qeth_get_buffers(), and let OSN callers deal with -ENOMEM. Signed-off-by:
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Julian Wiedmann authored
When called from qeth_core_probe_device(), qeth_determine_capabilities() initializes the device's BLKT defaults. From all other callers, the ccw_device has already been set online and the BLKT setting is skipped. Clean this up by extracting the BLKT setting into a separate helper that gets called from the right place. Signed-off-by:
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Julian Wiedmann authored
The completion of a pending READ cmd is processed via qeth_issue_next_read_cb(). Let this callback also start the next READ cmd, instead of hardcoding that step into the IRQ handler. While at it remove the check of the channel state, __qeth_issue_next_read() already does this. Signed-off-by:
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Julian Wiedmann authored
When the tear down sequence in qeth_l?_stop_card() has finished, the card is guaranteed to be in DOWN state and we don't have to check for it again. With this insight we can also remove the redundant setting of card->state in qeth_l?_set_online()'s error path. Signed-off-by:
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Julian Wiedmann authored
Slightly reduce the complexity of the core xmit path, by replacing some open-coded logic with the corresponding helpers. Signed-off-by:
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Julian Wiedmann authored
Current code suppresses debug entries when an TX buffer completes in ERROR state with no error indication set in SBALF15. This was introduced back with commit 58490f18 ("qeth: HiperSockets SIGA retry support on CC=2."). But qeth no longer retries after CC=2, and this sort of suppression make no sense anymore. Remove it. Signed-off-by:
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Add support for physical hardware clock Shalom says: This patchset adds support for physical hardware clock for Spectrum-1 ASIC only. Patches #1, #2 and #3 add the ability to query the free running clock PCI address. Patches #4 and #5 add two new register, the Management UTC Register and the Management Pulse Per Second Register. Patch #6 publishes scaled_ppm_to_ppb() to allow drivers to use it. Patch #7 adds the physical hardware clock operations. Patch #8 initializes the physical hardware clock. Patch #9 adds a selftest for testing the PTP physical hardware clock. v2 (Richard): * s/ptp_clock_scaled_ppm_to_ppb/scaled_ppm_to_ppb/ * imply PTP_1588_CLOCK in mlxsw Kconfig * s/mlxsw_sp1_ptp_update_phc_settime/mlxsw_sp1_ptp_phc_settime/ * s/mlxsw_sp1_ptp_update_phc_adjfreq/mlxsw_sp1_ptp_phc_adjfreq/ ==================== Signed-off-by: -
Shalom Toledo authored
Test the PTP Physical Hardware Clock functionality using the "phc_ctl" (a part of "linuxptp"). The test contains three sub-tests: * "settime" test * "adjtime" test * "adjfreq" test "settime" test: * set the PHC time to 0 seconds. * wait for 120.5 seconds. * check if PHC time equal to 120.XX seconds. "adjtime" test: * set the PHC time to 0 seconds. * adjust the time by 10 seconds. * check if PHC time equal to 10.XX seconds. "adjfreq" test: * adjust the PHC frequency to be 1% faster. * set the PHC time to 0 seconds. * wait for 100.5 seconds. * check if PHC time equal to 101.XX seconds. Usage: $ ./phc.sh /dev/ptp<X> It is possible to run a subset of the tests, for example: * To run only the "settime" test: $ TESTS="settime" ./phc.sh /dev/ptp<X> Signed-off-by:Shalom Toledo <shalomt@mellanox.com> Reviewed-by:
Petr Machata <petrm@mellanox.com> Acked-by:
Richard Cochran <richardcochran@gmail.com> Tested-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Shalom Toledo authored
Initialize the PTP physical hardware clock. Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Reviewed-by:
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Shalom Toledo authored
Implement physical hardware clock operations. Signed-off-by:
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Shalom Toledo authored
Publish scaled_ppm_to_ppb to allow drivers to use it. Signed-off-by:
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Shalom Toledo authored
The MTPPS register provides the device PPS capabilities, configure the PPS in and out modules and holds the PPS in time stamp. Signed-off-by:
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Shalom Toledo authored
The MTUTC register configures the HW UTC counter. Signed-off-by:
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Shalom Toledo authored
Query free running clock PCI BAR and offsets during the pci_init. Signed-off-by:
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Shalom Toledo authored
Add two new bus operations for reading the hardware free running clock. Signed-off-by:
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Shalom Toledo authored
Add free running clock PCI BAR and offset to query firmware command. Signed-off-by:
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Roman Mashak authored
Extended fw TDC tests with use cases where actions are pre-created and attached to a filter by reference, i.e. by action index. Signed-off-by:
Roman Mashak <mrv@mojatatu.com> Signed-off-by:
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- 13 Jun, 2019 6 commits
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David S. Miller authored
Jose Abreu says: ==================== net: stmmac: Convert to phylink This converts stmmac to use phylink. Besides the code redution this will allow to gain more flexibility. ==================== Signed-off-by: -
Jose Abreu authored
Convert everything to phylink. Signed-off-by:
Jose Abreu <joabreu@synopsys.com> Cc: Joao Pinto <jpinto@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Jose Abreu authored
Start adding the phylink callbacks. Signed-off-by:
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Jose Abreu authored
In preparation for the convertion, split the adjust_link function into mac_config and add the mac_link_up and mac_link_down functions. Signed-off-by:
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YueHaibing authored
Fix sparse warning: drivers/net/ethernet/qlogic/qede/qede_main.c:963:6: warning: symbol 'qede_lock' was not declared. Should it be static? drivers/net/ethernet/qlogic/qede/qede_main.c:969:6: warning: symbol 'qede_unlock' was not declared. Should it be static? Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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YueHaibing authored
Fix sparse warnings: drivers/net/dsa/sja1105/sja1105_main.c:1848:6: warning: symbol 'sja1105_port_rxtstamp' was not declared. Should it be static? drivers/net/dsa/sja1105/sja1105_main.c:1869:6: warning: symbol 'sja1105_port_txtstamp' was not declared. Should it be static? Reported-by:
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- 12 Jun, 2019 9 commits
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Eric Dumazet authored
Adding delays to TCP flows is crucial for studying behavior of TCP stacks, including congestion control modules. Linux offers netem module, but it has unpractical constraints : - Need root access to change qdisc - Hard to setup on egress if combined with non trivial qdisc like FQ - Single delay for all flows. EDT (Earliest Departure Time) adoption in TCP stack allows us to enable a per socket delay at a very small cost. Networking tools can now establish thousands of flows, each of them with a different delay, simulating real world conditions. This requires FQ packet scheduler or a EDT-enabled NIC. This patchs adds TCP_TX_DELAY socket option, to set a delay in usec units. unsigned int tx_delay = 10000; /* 10 msec */ setsockopt(fd, SOL_TCP, TCP_TX_DELAY, &tx_delay, sizeof(tx_delay)); Note that FQ packet scheduler limits might need some tweaking : man tc-fq PARAMETERS limit Hard limit on the real queue size. When this limit is reached, new packets are dropped. If the value is lowered, packets are dropped so that the new limit is met. Default is 10000 packets. flow_limit Hard limit on the maximum number of packets queued per flow. Default value is 100. Use of TCP_TX_DELAY option will increase number of skbs in FQ qdisc, so packets would be dropped if any of the previous limit is hit. Use of a jump label makes this support runtime-free, for hosts never using the option. Also note that TSQ (TCP Small Queues) limits are slightly changed with this patch : we need to account that skbs artificially delayed wont stop us providind more skbs to feed the pipe (netem uses skb_orphan_partial() for this purpose, but FQ can not use this trick) Because of that, using big delays might very well trigger old bugs in TSO auto defer logic and/or sndbuf limited detection. Signed-off-by:Eric Dumazet <edumazet@google.com> Signed-off-by:
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David S. Miller authored
Sameeh Jubran says: ==================== Support for dynamic queue size changes This patchset introduces the following: * add new admin command for supporting different queue size for Tx/Rx * add support for Tx/Rx queues size modification through ethtool * allow queues allocation backoff when low on memory * update driver version Difference from v2: * Dropped superfluous range checks which are already done in ethtool. [patch 5/7] * Dropped inline keyword from function. [patch 4/7] * Added a new patch which drops inline keyword all *.c files. [patch 6/7] Difference from v1: * Changed ena_update_queue_sizes() signature to use u32 instead of int type for the size arguments. [patch 5/7] ==================== Signed-off-by: -
Sameeh Jubran authored
Update driver version to match device specification. Signed-off-by:
Sameeh Jubran <sameehj@amazon.com> Signed-off-by:
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Sameeh Jubran authored
Let the compiler decide if the function should be inline in *.c files Signed-off-by:
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Sameeh Jubran authored
Implement the set_ringparam() function of the ethtool interface to enable the changing of io queue sizes. Signed-off-by:
Arthur Kiyanovski <akiyano@amazon.com> Signed-off-by:
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Sameeh Jubran authored
If there is not enough memory to allocate io queues the driver will try to allocate smaller queues. The backoff algorithm is as follows: 1. Try to allocate TX and RX and if successful. 1.1. return success 2. Divide by 2 the size of the larger of RX and TX queues (or both if their size is the same). 3. If TX or RX is smaller than 256 3.1. return failure. 4. else 4.1. go back to 1. Also change the tx_queue_size, rx_queue_size field names in struct adapter to requested_tx_queue_size and requested_rx_queue_size, and use RX and TX queue 0 for actual queue sizes. Explanation: The original fields were useless as they were simply used to assign values once from them to each of the queues in the adapter in ena_probe(). They could simply be deleted. However now that we have a backoff feature, we have use for them. In case of backoff there is a difference between the requested queue sizes and the actual sizes. Therefore there is a need to save the requested queue size for future retries of queue allocation (for example if allocation failed and then ifdown + ifup was called we want to start the allocation from the original requested size of the queues). Signed-off-by:
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Sameeh Jubran authored
Currently ethtool -g shows the same size for current and max queue sizes. Signed-off-by:
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Sameeh Jubran authored
Use MAX_QUEUES_EXT get feature capability to query the device. Signed-off-by:
Netanel Belgazal <netanel@amazon.com> Signed-off-by:
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Arthur Kiyanovski authored
Add a new admin command to support different queue size for Tx/Rx queues (the change also support different SQ/CQ sizes) Signed-off-by:
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