mirror of https://gitee.com/openkylin/linux.git
bnxt_en: Modify init sequence to support shared or non shared rings.
Modify ring memory allocation and MSIX setup to support shared or non shared rings and do the proper mapping. Default is still to use shared rings. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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6e6c5a57fb
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01657bcd07
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@ -2496,7 +2496,7 @@ static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init)
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static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
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static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
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{
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{
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int i, rc, size, arr_size;
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int i, j, rc, size, arr_size;
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void *bnapi;
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void *bnapi;
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if (irq_re_init) {
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if (irq_re_init) {
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@ -2535,9 +2535,14 @@ static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
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if (!bp->tx_ring)
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if (!bp->tx_ring)
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return -ENOMEM;
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return -ENOMEM;
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for (i = 0; i < bp->tx_nr_rings; i++) {
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if (bp->flags & BNXT_FLAG_SHARED_RINGS)
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bp->tx_ring[i].bnapi = bp->bnapi[i];
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j = 0;
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bp->bnapi[i]->tx_ring = &bp->tx_ring[i];
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else
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j = bp->rx_nr_rings;
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for (i = 0; i < bp->tx_nr_rings; i++, j++) {
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bp->tx_ring[i].bnapi = bp->bnapi[j];
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bp->bnapi[j]->tx_ring = &bp->tx_ring[i];
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}
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}
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rc = bnxt_alloc_stats(bp);
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rc = bnxt_alloc_stats(bp);
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@ -4066,7 +4071,7 @@ static int bnxt_setup_msix(struct bnxt *bp)
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{
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{
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struct msix_entry *msix_ent;
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struct msix_entry *msix_ent;
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struct net_device *dev = bp->dev;
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struct net_device *dev = bp->dev;
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int i, total_vecs, rc = 0;
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int i, total_vecs, rc = 0, min = 1;
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const int len = sizeof(bp->irq_tbl[0].name);
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const int len = sizeof(bp->irq_tbl[0].name);
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bp->flags &= ~BNXT_FLAG_USING_MSIX;
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bp->flags &= ~BNXT_FLAG_USING_MSIX;
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@ -4081,7 +4086,10 @@ static int bnxt_setup_msix(struct bnxt *bp)
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msix_ent[i].vector = 0;
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msix_ent[i].vector = 0;
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}
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}
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total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, 1, total_vecs);
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if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
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min = 2;
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total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs);
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if (total_vecs < 0) {
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if (total_vecs < 0) {
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rc = -ENODEV;
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rc = -ENODEV;
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goto msix_setup_exit;
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goto msix_setup_exit;
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@ -4093,7 +4101,7 @@ static int bnxt_setup_msix(struct bnxt *bp)
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/* Trim rings based upon num of vectors allocated */
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/* Trim rings based upon num of vectors allocated */
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rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings,
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rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings,
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total_vecs, true);
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total_vecs, min == 1);
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if (rc)
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if (rc)
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goto msix_setup_exit;
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goto msix_setup_exit;
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@ -4115,12 +4123,21 @@ static int bnxt_setup_msix(struct bnxt *bp)
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}
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}
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}
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}
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}
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}
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bp->cp_nr_rings = max_t(int, bp->rx_nr_rings, bp->tx_nr_rings);
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bp->cp_nr_rings = total_vecs;
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for (i = 0; i < bp->cp_nr_rings; i++) {
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for (i = 0; i < bp->cp_nr_rings; i++) {
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char *attr;
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bp->irq_tbl[i].vector = msix_ent[i].vector;
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bp->irq_tbl[i].vector = msix_ent[i].vector;
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if (bp->flags & BNXT_FLAG_SHARED_RINGS)
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attr = "TxRx";
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else if (i < bp->rx_nr_rings)
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attr = "rx";
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else
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attr = "tx";
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snprintf(bp->irq_tbl[i].name, len,
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snprintf(bp->irq_tbl[i].name, len,
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"%s-%s-%d", dev->name, "TxRx", i);
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"%s-%s-%d", dev->name, attr, i);
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bp->irq_tbl[i].handler = bnxt_msix;
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bp->irq_tbl[i].handler = bnxt_msix;
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}
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}
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rc = bnxt_set_real_num_queues(bp);
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rc = bnxt_set_real_num_queues(bp);
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@ -4158,6 +4175,7 @@ static int bnxt_setup_inta(struct bnxt *bp)
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bp->tx_nr_rings = 1;
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bp->tx_nr_rings = 1;
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bp->cp_nr_rings = 1;
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bp->cp_nr_rings = 1;
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bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
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bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
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bp->flags |= BNXT_FLAG_SHARED_RINGS;
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bp->irq_tbl[0].vector = bp->pdev->irq;
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bp->irq_tbl[0].vector = bp->pdev->irq;
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snprintf(bp->irq_tbl[0].name, len,
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snprintf(bp->irq_tbl[0].name, len,
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"%s-%s-%d", bp->dev->name, "TxRx", 0);
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"%s-%s-%d", bp->dev->name, "TxRx", 0);
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@ -5365,8 +5383,12 @@ static int bnxt_setup_tc(struct net_device *dev, u8 tc)
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if (tc) {
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if (tc) {
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int max_rx_rings, max_tx_rings, rc;
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int max_rx_rings, max_tx_rings, rc;
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bool sh = false;
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rc = bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, true);
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if (bp->flags & BNXT_FLAG_SHARED_RINGS)
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sh = true;
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rc = bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, sh);
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if (rc || bp->tx_nr_rings_per_tc * tc > max_tx_rings)
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if (rc || bp->tx_nr_rings_per_tc * tc > max_tx_rings)
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return -ENOMEM;
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return -ENOMEM;
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}
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}
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