diff options
| author | Shannon Nelson <snelson@pensando.io> | 2020-05-12 03:59:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-12 22:19:30 +0300 |
| commit | 5b3f3f2a71ed1cecf6fcf9e8c858a89589415449 (patch) | |
| tree | abe26559e104c6e1157f3954540fc70b7ba7da5b /drivers/net/ethernet/pensando/ionic/ionic_dev.c | |
| parent | 6b9ea5ff5abdcda9d1291d9b8bbad44c93c7ccef (diff) | |
| download | linux-5b3f3f2a71ed1cecf6fcf9e8c858a89589415449.tar.xz | |
ionic: support longer tx sg lists
The version 1 Tx queues can use longer SG lists than the
original version 0 queues, but we need to check to see if the
firmware supports the v1 Tx queues. This implements the queue
type query for all queue types, and uses the information to
set up for using the longer Tx SG lists.
Because the Tx SG list can be longer, we need to limit the
max ring length to be sure we stay inside the boundaries of a
DMA allocation max size, so we lower the max Tx ring size.
The driver sets its highest known version in the Q_IDENTITY
command, and the FW returns the highest version that it knows,
bounded by the driver's version. The negotiated version number
is later used in the Q_INIT commands.
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_dev.c')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_dev.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c index f4ae40ae1e53..d83eff0ae0ac 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c @@ -388,6 +388,19 @@ int ionic_set_vf_config(struct ionic *ionic, int vf, u8 attr, u8 *data) } /* LIF commands */ +void ionic_dev_cmd_queue_identify(struct ionic_dev *idev, + u16 lif_type, u8 qtype, u8 qver) +{ + union ionic_dev_cmd cmd = { + .q_identify.opcode = IONIC_CMD_Q_IDENTIFY, + .q_identify.lif_type = lif_type, + .q_identify.type = qtype, + .q_identify.ver = qver, + }; + + ionic_dev_cmd_go(idev, &cmd); +} + void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, u8 type, u8 ver) { union ionic_dev_cmd cmd = { @@ -431,6 +444,7 @@ void ionic_dev_cmd_adminq_init(struct ionic_dev *idev, struct ionic_qcq *qcq, .q_init.opcode = IONIC_CMD_Q_INIT, .q_init.lif_index = cpu_to_le16(lif_index), .q_init.type = q->type, + .q_init.ver = qcq->q.lif->qtype_info[q->type].version, .q_init.index = cpu_to_le32(q->index), .q_init.flags = cpu_to_le16(IONIC_QINIT_F_IRQ | IONIC_QINIT_F_ENA), |