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| author | Tariq Toukan | 2018-02-11 14:21:33 +0100 |
|---|---|---|
| committer | Saeed Mahameed | 2018-03-31 01:16:17 +0200 |
| commit | 73281b78a37a1a3f392fd5b6116d04e597484529 (patch) | |
| tree | 723a3c3ca78b72e8b67c8e9408a66afffd462064 /Kbuild | |
| parent | net/mlx5e: Save MTU in channels params (diff) | |
| download | kernel-qcow2-linux-73281b78a37a1a3f392fd5b6116d04e597484529.tar.gz kernel-qcow2-linux-73281b78a37a1a3f392fd5b6116d04e597484529.tar.xz kernel-qcow2-linux-73281b78a37a1a3f392fd5b6116d04e597484529.zip | |
net/mlx5e: Derive Striding RQ size from MTU
In Striding RQ, each WQE serves multiple packets
(hence called Multi-Packet WQE, MPWQE).
The size of a MPWQE is constant (currently 256KB).
Upon a ringparam set operation, we calculate the number of
MPWQEs per RQ. For this, first it is needed to determine the
number of packets that can reside within a single MPWQE.
In this patch we use the actual MTU size instead of ETH_DATA_LEN
for this calculation.
This implies that a change in MTU might require a change
in Striding RQ ring size.
In addition, this obsoletes some WQEs-to-packets translation
functions and helps delete ~60 LOC.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions