diff options
| author | Aditya Garg <gargaditya@linux.microsoft.com> | 2026-05-02 00:45:33 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-05-05 19:23:16 -0700 |
| commit | d07efe5a6e641af59f2dbbef4a748fab6d967747 (patch) | |
| tree | 88ebf7406a429d7c842ceb2f3a3a63aeaa3cfe12 /include | |
| parent | 561e066284d14eb7a3ea31bfcb0cc599f6044739 (diff) | |
net: mana: Use per-queue allocation for tx_qp to reduce allocation size
Convert tx_qp from a single contiguous array allocation to per-queue
individual allocations. Each mana_tx_qp struct is approximately 35KB.
With many queues (e.g., 32/64), the flat array requires a single
contiguous allocation that can fail under memory fragmentation.
Change mana_tx_qp *tx_qp to mana_tx_qp **tx_qp (array of pointers),
allocating each queue's mana_tx_qp individually via kvzalloc. This
reduces each allocation to ~35KB and provides vmalloc fallback,
avoiding allocation failure due to fragmentation.
Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://patch.msgid.link/20260502074552.23857-2-gargaditya@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/mana/mana.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h index 8f721cd4e4a7..aa90a858c8e3 100644 --- a/include/net/mana/mana.h +++ b/include/net/mana/mana.h @@ -507,7 +507,7 @@ struct mana_port_context { bool tx_shortform_allowed; u16 tx_vp_offset; - struct mana_tx_qp *tx_qp; + struct mana_tx_qp **tx_qp; /* Indirection Table for RX & TX. The values are queue indexes */ u32 *indir_table; |