idpf: avoid bloating &idpf_q_vector with big %NR_CPUS

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With CONFIG_MAXSMP, sizeof(cpumask_t) is 1 Kb. The queue vector
structure has them embedded, which means 1 additional Kb of not
really hotpath data.
We have cpumask_var_t, which is either an embedded cpumask or a pointer
for allocating it dynamically when it's big. Use it instead of plain
cpumasks and put &idpf_q_vector on a good diet.
Also remove redundant pointer to the interrupt name from the structure.
request_irq() saves it and free_irq() returns it on deinit, so that you
can free the memory.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

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This commit is contained in:

Alexander Lobakin 2024-06-20 15:53:39 +02:00 • committed by Tony Nguyen

parent e4891e4687

commit bf9bf7042a

3 changed files with 22 additions and 18 deletions

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13

drivers/net/ethernet/intel/idpf/idpf_lib.c

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20

drivers/net/ethernet/intel/idpf/idpf_txrx.c

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7

drivers/net/ethernet/intel/idpf/idpf_txrx.h

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