diff options
| author |   Subbaraya Sundeep <sbhatta@marvell.com> | 2022-02-23 00:09:13 +0530 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-02-23 20:33:06 -0800 |
| commit | 68258596cbc9a6c1e1e243ef41321c4c0332df95 (patch) | |
| tree | 41bb5f7ec26554b283eaad878dd2628b0b128bbc /drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | |
| parent | ethtool: add support to set/get completion queue event size (diff) | |
| download | linux-dev-68258596cbc9a6c1e1e243ef41321c4c0332df95.tar.xz linux-dev-68258596cbc9a6c1e1e243ef41321c4c0332df95.zip | |
octeontx2-pf: Vary completion queue event size
Completion Queue Entry(CQE) is a descriptor written
by hardware to notify software about the send and
receive completion status. The CQE can be of size
128 or 512 bytes. A 512 bytes CQE can hold more receive
fragments pointers compared to 128 bytes CQE. This
patch enables to modify CQE size using:
<ethtool -G cqe-size N>.
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c index a232e202f6a4..9e87836ed8bf 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -572,6 +572,8 @@ static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id) hw->max_queues = qcount; hw->tot_tx_queues = qcount; hw->rbuf_len = OTX2_DEFAULT_RBUF_LEN; + /* Use CQE of 128 byte descriptor size by default */ + hw->xqe_size = 128; hw->irq_name = devm_kmalloc_array(&hw->pdev->dev, num_vec, NAME_SIZE, GFP_KERNEL); |