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net: lan966x: refactor buffer reload function

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Now that we store everything in the fdma structs, refactor
lan966x_fdma_reload() to store and restore the entire struct.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Daniel Machon 2024-09-05 10:06:40 +02:00 committed by Paolo Abeni
parent 9fbc5719f6
commit 89ba464fcf
1 changed files with 4 additions and 10 deletions
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14
drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
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@ -810,14 +810,11 @@ static int lan966x_qsys_sw_status(struct lan966x *lan966x)
static int lan966x_fdma_reload(struct lan966x *lan966x, int new_mtu) static int lan966x_fdma_reload(struct lan966x *lan966x, int new_mtu)
{ {
struct page_pool *page_pool; struct page_pool *page_pool;
dma_addr_t rx_dma; struct fdma fdma_rx_old;
void *rx_dcbs;
u32 size;
int err; int err;
/* Store these for later to free them */ /* Store these for later to free them */
rx_dma = lan966x->rx.fdma.dma; memcpy(&fdma_rx_old, &lan966x->rx.fdma, sizeof(struct fdma));
rx_dcbs = lan966x->rx.fdma.dcbs;
page_pool = lan966x->rx.page_pool; page_pool = lan966x->rx.page_pool;
napi_synchronize(&lan966x->napi); napi_synchronize(&lan966x->napi);
@ -833,9 +830,7 @@ static int lan966x_fdma_reload(struct lan966x *lan966x, int new_mtu)
goto restore; goto restore;
lan966x_fdma_rx_start(&lan966x->rx); lan966x_fdma_rx_start(&lan966x->rx);
size = sizeof(struct fdma_dcb) * lan966x->rx.fdma.n_dcbs; fdma_free_coherent(lan966x->dev, &fdma_rx_old);
size = ALIGN(size, PAGE_SIZE);
dma_free_coherent(lan966x->dev, size, rx_dcbs, rx_dma);
page_pool_destroy(page_pool); page_pool_destroy(page_pool);
@ -845,8 +840,7 @@ static int lan966x_fdma_reload(struct lan966x *lan966x, int new_mtu)
return err; return err;
restore: restore:
lan966x->rx.page_pool = page_pool; lan966x->rx.page_pool = page_pool;
lan966x->rx.fdma.dma = rx_dma; memcpy(&lan966x->rx.fdma, &fdma_rx_old, sizeof(struct fdma));
lan966x->rx.fdma.dcbs = rx_dcbs;
lan966x_fdma_rx_start(&lan966x->rx); lan966x_fdma_rx_start(&lan966x->rx);
return err; return err;