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nfp: pass ring count as function parameter

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Soon ring resize will call this functions with values
different than the current configuration we need to
explicitly pass the ring count as parameter.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2016-04-07 19:39:47 +01:00 committed by David S. Miller
parent 36a857e4f2
commit a98cb25812
1 changed files with 14 additions and 9 deletions
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23
drivers/net/ethernet/netronome/nfp/nfp_net_common.c
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@ -1407,17 +1407,18 @@ static void nfp_net_tx_ring_free(struct nfp_net_tx_ring *tx_ring)
/**
* nfp_net_tx_ring_alloc() - Allocate resource for a TX ring
* @tx_ring: TX Ring structure to allocate
* @cnt: Ring buffer count
*
* Return: 0 on success, negative errno otherwise.
*/
static int nfp_net_tx_ring_alloc(struct nfp_net_tx_ring *tx_ring)
static int nfp_net_tx_ring_alloc(struct nfp_net_tx_ring *tx_ring, u32 cnt)
{
struct nfp_net_r_vector *r_vec = tx_ring->r_vec;
struct nfp_net *nn = r_vec->nfp_net;
struct pci_dev *pdev = nn->pdev;
int sz;
tx_ring->cnt = nn->txd_cnt;
tx_ring->cnt = cnt;
tx_ring->size = sizeof(*tx_ring->txds) * tx_ring->cnt;
tx_ring->txds = dma_zalloc_coherent(&pdev->dev, tx_ring->size,
@ -1470,18 +1471,20 @@ static void nfp_net_rx_ring_free(struct nfp_net_rx_ring *rx_ring)
* nfp_net_rx_ring_alloc() - Allocate resource for a RX ring
* @rx_ring: RX ring to allocate
* @fl_bufsz: Size of buffers to allocate
* @cnt: Ring buffer count
*
* Return: 0 on success, negative errno otherwise.
*/
static int
nfp_net_rx_ring_alloc(struct nfp_net_rx_ring *rx_ring, unsigned int fl_bufsz)
nfp_net_rx_ring_alloc(struct nfp_net_rx_ring *rx_ring, unsigned int fl_bufsz,
u32 cnt)
{
struct nfp_net_r_vector *r_vec = rx_ring->r_vec;
struct nfp_net *nn = r_vec->nfp_net;
struct pci_dev *pdev = nn->pdev;
int sz;
rx_ring->cnt = nn->rxd_cnt;
rx_ring->cnt = cnt;
rx_ring->bufsz = fl_bufsz;
rx_ring->size = sizeof(*rx_ring->rxds) * rx_ring->cnt;
@ -1507,7 +1510,8 @@ nfp_net_rx_ring_alloc(struct nfp_net_rx_ring *rx_ring, unsigned int fl_bufsz)
}
static struct nfp_net_rx_ring *
nfp_net_shadow_rx_rings_prepare(struct nfp_net *nn, unsigned int fl_bufsz)
nfp_net_shadow_rx_rings_prepare(struct nfp_net *nn, unsigned int fl_bufsz,
u32 buf_cnt)
{
struct nfp_net_rx_ring *rings;
unsigned int r;
@ -1519,7 +1523,7 @@ nfp_net_shadow_rx_rings_prepare(struct nfp_net *nn, unsigned int fl_bufsz)
for (r = 0; r < nn->num_rx_rings; r++) {
nfp_net_rx_ring_init(&rings[r], nn->rx_rings[r].r_vec, r);
if (nfp_net_rx_ring_alloc(&rings[r], fl_bufsz))
if (nfp_net_rx_ring_alloc(&rings[r], fl_bufsz, buf_cnt))
goto err_free_prev;
if (nfp_net_rx_ring_bufs_alloc(nn, &rings[r]))
@ -1878,12 +1882,12 @@ static int nfp_net_netdev_open(struct net_device *netdev)
if (err)
goto err_free_prev_vecs;
err = nfp_net_tx_ring_alloc(nn->r_vecs[r].tx_ring);
err = nfp_net_tx_ring_alloc(nn->r_vecs[r].tx_ring, nn->txd_cnt);
if (err)
goto err_cleanup_vec_p;
err = nfp_net_rx_ring_alloc(nn->r_vecs[r].rx_ring,
nn->fl_bufsz);
nn->fl_bufsz, nn->rxd_cnt);
if (err)
goto err_free_tx_ring_p;
@ -2063,7 +2067,8 @@ static int nfp_net_change_mtu(struct net_device *netdev, int new_mtu)
}
/* Prepare new rings */
tmp_rings = nfp_net_shadow_rx_rings_prepare(nn, new_fl_bufsz);
tmp_rings = nfp_net_shadow_rx_rings_prepare(nn, new_fl_bufsz,
nn->rxd_cnt);
if (!tmp_rings)
return -ENOMEM;