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0fb53faa2e
We cannot safely assume that the NAPI handler will complete within the 20 ms that we allow for the event self-test. The handler may be deferred for longer than this, particularly on realtime kernels. Instead, check whether either an event has been handled or (as in the old failure path) whether an interrupt has been received and an event has been delivered but not yet handled. Use napi_disable() to synchronize with the NAPI handler before checking, since it will clear events before updating eventq_read_ptr. Remove the test result chan.N.eventq.poll, since it is not an error if the NAPI handler does not run during the test. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/****************************************************************************
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* Driver for Solarflare Solarstorm network controllers and boards
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* Copyright 2005-2006 Fen Systems Ltd.
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* Copyright 2006-2010 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#ifndef EFX_SELFTEST_H
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#define EFX_SELFTEST_H
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#include "net_driver.h"
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/*
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* Self tests
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*/
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struct efx_loopback_self_tests {
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int tx_sent[EFX_TXQ_TYPES];
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int tx_done[EFX_TXQ_TYPES];
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int rx_good;
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int rx_bad;
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};
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#define EFX_MAX_PHY_TESTS 20
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/* Efx self test results
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* For fields which are not counters, 1 indicates success and -1
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* indicates failure.
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*/
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struct efx_self_tests {
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/* online tests */
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int phy_alive;
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int nvram;
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int interrupt;
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int eventq_dma[EFX_MAX_CHANNELS];
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int eventq_int[EFX_MAX_CHANNELS];
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/* offline tests */
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int registers;
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int phy_ext[EFX_MAX_PHY_TESTS];
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struct efx_loopback_self_tests loopback[LOOPBACK_TEST_MAX + 1];
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};
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extern void efx_loopback_rx_packet(struct efx_nic *efx,
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const char *buf_ptr, int pkt_len);
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extern int efx_selftest(struct efx_nic *efx,
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struct efx_self_tests *tests,
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unsigned flags);
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#endif /* EFX_SELFTEST_H */
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