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sfxge: add tunable for maximum start attetmps after reset

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Reviewed by:    gnn
Sponsored by:   Solarflare Communications, Inc.
MFC after:      2 days
Differential Revision: https://reviews.freebsd.org/D2610
This commit is contained in:
Andrew Rybchenko 2015-12-11 06:20:31 +00:00
parent fd48e7a5af
commit 3b5966d10f
1 changed files with 8 additions and 1 deletions
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9
sys/dev/sfxge/sfxge.c
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@ -95,6 +95,13 @@ SYSCTL_INT(_hw_sfxge, OID_AUTO, tx_ring, CTLFLAG_RDTUN,
&sfxge_tx_ring_entries, 0,
"Maximum number of descriptors in a transmit ring");
#define SFXGE_PARAM_RESTART_ATTEMPTS SFXGE_PARAM(restart_attempts)
static int sfxge_restart_attempts = 3;
TUNABLE_INT(SFXGE_PARAM_RESTART_ATTEMPTS, &sfxge_restart_attempts);
SYSCTL_INT(_hw_sfxge, OID_AUTO, restart_attempts, CTLFLAG_RDTUN,
&sfxge_restart_attempts, 0,
"Maximum number of attempts to bring interface up after reset");
#if EFSYS_OPT_MCDI_LOGGING
#define SFXGE_PARAM_MCDI_LOGGING SFXGE_PARAM(mcdi_logging)
static int sfxge_mcdi_logging = 0;
@ -994,7 +1001,7 @@ sfxge_reset(void *arg, int npending)
sfxge_stop(sc);
efx_nic_reset(sc->enp);
for (attempt = 0; attempt < 3; ++attempt) {
for (attempt = 0; attempt < sfxge_restart_attempts; ++attempt) {
if ((rc = sfxge_start(sc)) == 0)
goto done;