diff options
| author | Shannon Nelson <snelson@pensando.io> | 2019-09-03 15:28:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-05 09:24:43 +0200 |
| commit | 1d062b7b6f6408fd43f447f90338cfade4168170 (patch) | |
| tree | 12857110e2067b5f501b8c606855dd0563f3827b /drivers/net/ethernet/pensando/ionic/ionic_main.c | |
| parent | 6461b446f2a0f40c038f1d09c69d1e5565a84a43 (diff) | |
| download | linux-1d062b7b6f6408fd43f447f90338cfade4168170.tar.bz2 | |
ionic: Add basic adminq support
Most of the NIC configuration happens through the AdminQ message
queue. NAPI is used for basic interrupt handling and message
queue management. These routines are set up to be shared among
different types of queues when used in slow-path handling.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_main.c')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_main.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c index d6d77abbc4af..56206fd3e3a5 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_main.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c @@ -169,6 +169,32 @@ static const char *ionic_opcode_to_str(enum ionic_cmd_opcode opcode) } } +int ionic_napi(struct napi_struct *napi, int budget, ionic_cq_cb cb, + ionic_cq_done_cb done_cb, void *done_arg) +{ + struct ionic_qcq *qcq = napi_to_qcq(napi); + struct ionic_cq *cq = &qcq->cq; + u32 work_done, flags = 0; + + work_done = ionic_cq_service(cq, budget, cb, done_cb, done_arg); + + if (work_done < budget && napi_complete_done(napi, work_done)) { + flags |= IONIC_INTR_CRED_UNMASK; + DEBUG_STATS_INTR_REARM(cq->bound_intr); + } + + if (work_done || flags) { + flags |= IONIC_INTR_CRED_RESET_COALESCE; + ionic_intr_credits(cq->lif->ionic->idev.intr_ctrl, + cq->bound_intr->index, + work_done, flags); + } + + DEBUG_STATS_NAPI_POLL(qcq, work_done); + + return work_done; +} + int ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds) { struct ionic_dev *idev = &ionic->idev; |