mirror of https://gitee.com/openkylin/linux.git
atm: [he] remove small buffer allocation/handling code
Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
chas williams - CONTRACTOR
David S. Miller
parent
864a3ff635
commit
1d927870e5
147
drivers/atm/he.c
147
drivers/atm/he.c
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@ -780,59 +780,18 @@ he_init_group(struct he_dev *he_dev, int group)
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{
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int i;
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/* small buffer pool */
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he_dev->rbps_pool = pci_pool_create("rbps", he_dev->pci_dev,
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CONFIG_RBPS_BUFSIZE, 8, 0);
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if (he_dev->rbps_pool == NULL) {
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hprintk("unable to create rbps pages\n");
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return -ENOMEM;
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}
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he_dev->rbps_base = pci_alloc_consistent(he_dev->pci_dev,
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CONFIG_RBPS_SIZE * sizeof(struct he_rbp), &he_dev->rbps_phys);
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if (he_dev->rbps_base == NULL) {
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hprintk("failed to alloc rbps_base\n");
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goto out_destroy_rbps_pool;
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}
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memset(he_dev->rbps_base, 0, CONFIG_RBPS_SIZE * sizeof(struct he_rbp));
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he_dev->rbps_virt = kmalloc(CONFIG_RBPS_SIZE * sizeof(struct he_virt), GFP_KERNEL);
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if (he_dev->rbps_virt == NULL) {
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hprintk("failed to alloc rbps_virt\n");
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goto out_free_rbps_base;
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}
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for (i = 0; i < CONFIG_RBPS_SIZE; ++i) {
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dma_addr_t dma_handle;
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void *cpuaddr;
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cpuaddr = pci_pool_alloc(he_dev->rbps_pool, GFP_KERNEL|GFP_DMA, &dma_handle);
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if (cpuaddr == NULL)
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goto out_free_rbps_virt;
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he_dev->rbps_virt[i].virt = cpuaddr;
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he_dev->rbps_base[i].status = RBP_LOANED | RBP_SMALLBUF | (i << RBP_INDEX_OFF);
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he_dev->rbps_base[i].phys = dma_handle;
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}
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he_dev->rbps_tail = &he_dev->rbps_base[CONFIG_RBPS_SIZE - 1];
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he_writel(he_dev, he_dev->rbps_phys, G0_RBPS_S + (group * 32));
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he_writel(he_dev, RBPS_MASK(he_dev->rbps_tail),
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G0_RBPS_T + (group * 32));
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he_writel(he_dev, CONFIG_RBPS_BUFSIZE/4,
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G0_RBPS_BS + (group * 32));
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he_writel(he_dev,
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RBP_THRESH(CONFIG_RBPS_THRESH) |
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RBP_QSIZE(CONFIG_RBPS_SIZE - 1) |
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RBP_INT_ENB,
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G0_RBPS_QI + (group * 32));
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he_writel(he_dev, 0x0, G0_RBPS_S + (group * 32));
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he_writel(he_dev, 0x0, G0_RBPS_T + (group * 32));
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he_writel(he_dev, 0x0, G0_RBPS_QI + (group * 32));
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he_writel(he_dev, RBP_THRESH(0x1) | RBP_QSIZE(0x0),
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G0_RBPS_BS + (group * 32));
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/* large buffer pool */
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he_dev->rbpl_pool = pci_pool_create("rbpl", he_dev->pci_dev,
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CONFIG_RBPL_BUFSIZE, 8, 0);
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if (he_dev->rbpl_pool == NULL) {
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hprintk("unable to create rbpl pool\n");
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goto out_free_rbps_virt;
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return -ENOMEM;
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}
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he_dev->rbpl_base = pci_alloc_consistent(he_dev->pci_dev,
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@ -934,19 +893,6 @@ he_init_group(struct he_dev *he_dev, int group)
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out_destroy_rbpl_pool:
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pci_pool_destroy(he_dev->rbpl_pool);
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i = CONFIG_RBPS_SIZE;
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out_free_rbps_virt:
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while (i--)
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pci_pool_free(he_dev->rbps_pool, he_dev->rbps_virt[i].virt,
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he_dev->rbps_base[i].phys);
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kfree(he_dev->rbps_virt);
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out_free_rbps_base:
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pci_free_consistent(he_dev->pci_dev, CONFIG_RBPS_SIZE *
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sizeof(struct he_rbp), he_dev->rbps_base,
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he_dev->rbps_phys);
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out_destroy_rbps_pool:
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pci_pool_destroy(he_dev->rbps_pool);
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return -ENOMEM;
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}
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@ -1634,22 +1580,6 @@ he_stop(struct he_dev *he_dev)
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if (he_dev->rbpl_pool)
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pci_pool_destroy(he_dev->rbpl_pool);
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if (he_dev->rbps_base) {
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int i;
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for (i = 0; i < CONFIG_RBPS_SIZE; ++i) {
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void *cpuaddr = he_dev->rbps_virt[i].virt;
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dma_addr_t dma_handle = he_dev->rbps_base[i].phys;
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pci_pool_free(he_dev->rbps_pool, cpuaddr, dma_handle);
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}
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pci_free_consistent(he_dev->pci_dev, CONFIG_RBPS_SIZE
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* sizeof(struct he_rbp), he_dev->rbps_base, he_dev->rbps_phys);
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}
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if (he_dev->rbps_pool)
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pci_pool_destroy(he_dev->rbps_pool);
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if (he_dev->rbrq_base)
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pci_free_consistent(he_dev->pci_dev, CONFIG_RBRQ_SIZE * sizeof(struct he_rbrq),
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he_dev->rbrq_base, he_dev->rbrq_phys);
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@ -1740,10 +1670,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
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RBRQ_CON_CLOSED(he_dev->rbrq_head) ? " CON_CLOSED" : "",
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RBRQ_HBUF_ERR(he_dev->rbrq_head) ? " HBUF_ERR" : "");
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if (RBRQ_ADDR(he_dev->rbrq_head) & RBP_SMALLBUF)
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rbp = &he_dev->rbps_base[RBP_INDEX(RBRQ_ADDR(he_dev->rbrq_head))];
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else
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rbp = &he_dev->rbpl_base[RBP_INDEX(RBRQ_ADDR(he_dev->rbrq_head))];
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rbp = &he_dev->rbpl_base[RBP_INDEX(RBRQ_ADDR(he_dev->rbrq_head))];
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buf_len = RBRQ_BUFLEN(he_dev->rbrq_head) * 4;
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cid = RBRQ_CID(he_dev->rbrq_head);
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@ -1819,15 +1746,9 @@ he_service_rbrq(struct he_dev *he_dev, int group)
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__net_timestamp(skb);
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for (iov = he_vcc->iov_head;
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iov < he_vcc->iov_tail; ++iov) {
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if (iov->iov_base & RBP_SMALLBUF)
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memcpy(skb_put(skb, iov->iov_len),
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he_dev->rbps_virt[RBP_INDEX(iov->iov_base)].virt, iov->iov_len);
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else
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memcpy(skb_put(skb, iov->iov_len),
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he_dev->rbpl_virt[RBP_INDEX(iov->iov_base)].virt, iov->iov_len);
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}
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for (iov = he_vcc->iov_head; iov < he_vcc->iov_tail; ++iov)
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memcpy(skb_put(skb, iov->iov_len),
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he_dev->rbpl_virt[RBP_INDEX(iov->iov_base)].virt, iov->iov_len);
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switch (vcc->qos.aal) {
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case ATM_AAL0:
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@ -1867,13 +1788,8 @@ he_service_rbrq(struct he_dev *he_dev, int group)
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return_host_buffers:
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++pdus_assembled;
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for (iov = he_vcc->iov_head;
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iov < he_vcc->iov_tail; ++iov) {
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if (iov->iov_base & RBP_SMALLBUF)
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rbp = &he_dev->rbps_base[RBP_INDEX(iov->iov_base)];
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else
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rbp = &he_dev->rbpl_base[RBP_INDEX(iov->iov_base)];
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for (iov = he_vcc->iov_head; iov < he_vcc->iov_tail; ++iov) {
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rbp = &he_dev->rbpl_base[RBP_INDEX(iov->iov_base)];
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rbp->status &= ~RBP_LOANED;
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}
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@ -1978,7 +1894,6 @@ he_service_tbrq(struct he_dev *he_dev, int group)
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}
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}
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static void
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he_service_rbpl(struct he_dev *he_dev, int group)
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{
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@ -2006,33 +1921,6 @@ he_service_rbpl(struct he_dev *he_dev, int group)
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he_writel(he_dev, RBPL_MASK(he_dev->rbpl_tail), G0_RBPL_T);
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}
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static void
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he_service_rbps(struct he_dev *he_dev, int group)
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{
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struct he_rbp *newtail;
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struct he_rbp *rbps_head;
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int moved = 0;
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rbps_head = (struct he_rbp *) ((unsigned long)he_dev->rbps_base |
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RBPS_MASK(he_readl(he_dev, G0_RBPS_S)));
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for (;;) {
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newtail = (struct he_rbp *) ((unsigned long)he_dev->rbps_base |
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RBPS_MASK(he_dev->rbps_tail+1));
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/* table 3.42 -- rbps_tail should never be set to rbps_head */
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if ((newtail == rbps_head) || (newtail->status & RBP_LOANED))
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break;
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newtail->status |= RBP_LOANED;
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he_dev->rbps_tail = newtail;
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++moved;
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}
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if (moved)
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he_writel(he_dev, RBPS_MASK(he_dev->rbps_tail), G0_RBPS_T);
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}
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static void
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he_tasklet(unsigned long data)
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{
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@ -2055,10 +1943,8 @@ he_tasklet(unsigned long data)
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HPRINTK("rbrq%d threshold\n", group);
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/* fall through */
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case ITYPE_RBRQ_TIMER:
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if (he_service_rbrq(he_dev, group)) {
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if (he_service_rbrq(he_dev, group))
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he_service_rbpl(he_dev, group);
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he_service_rbps(he_dev, group);
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}
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break;
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case ITYPE_TBRQ_THRESH:
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HPRINTK("tbrq%d threshold\n", group);
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@ -2070,7 +1956,7 @@ he_tasklet(unsigned long data)
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he_service_rbpl(he_dev, group);
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break;
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case ITYPE_RBPS_THRESH:
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he_service_rbps(he_dev, group);
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/* shouldn't happen unless small buffers enabled */
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break;
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case ITYPE_PHY:
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HPRINTK("phy interrupt\n");
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@ -2098,7 +1984,6 @@ he_tasklet(unsigned long data)
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he_service_rbrq(he_dev, 0);
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he_service_rbpl(he_dev, 0);
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he_service_rbps(he_dev, 0);
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he_service_tbrq(he_dev, 0);
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break;
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default:
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@ -2406,8 +2291,8 @@ he_open(struct atm_vcc *vcc)
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goto open_failed;
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}
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rsr1 = RSR1_GROUP(0);
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rsr4 = RSR4_GROUP(0);
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rsr1 = RSR1_GROUP(0) | RSR1_RBPL_ONLY;
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rsr4 = RSR4_GROUP(0) | RSR4_RBPL_ONLY;
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rsr0 = vcc->qos.rxtp.traffic_class == ATM_UBR ?
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(RSR0_EPD_ENABLE|RSR0_PPD_ENABLE) : 0;
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@ -67,11 +67,6 @@
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#define CONFIG_RBPL_BUFSIZE 4096
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#define RBPL_MASK(x) (((unsigned long)(x))&((CONFIG_RBPL_SIZE<<3)-1))
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#define CONFIG_RBPS_SIZE 1024
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#define CONFIG_RBPS_THRESH 64
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#define CONFIG_RBPS_BUFSIZE 128
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#define RBPS_MASK(x) (((unsigned long)(x))&((CONFIG_RBPS_SIZE<<3)-1))
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/* 5.1.3 initialize connection memory */
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#define CONFIG_RSRA 0x00000
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@ -225,14 +220,8 @@ struct he_virt {
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void *virt;
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};
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#define RBPL_ALIGNMENT CONFIG_RBPL_SIZE
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#define RBPS_ALIGNMENT CONFIG_RBPS_SIZE
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#ifdef notyet
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struct he_group {
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u32 rpbs_size, rpbs_qsize;
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struct he_rbp rbps_ba;
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u32 rpbl_size, rpbl_qsize;
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struct he_rpb_entry *rbpl_ba;
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};
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@ -303,12 +292,6 @@ struct he_dev {
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struct he_virt *rbpl_virt;
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int rbpl_peak;
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struct pci_pool *rbps_pool;
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dma_addr_t rbps_phys;
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struct he_rbp *rbps_base, *rbps_tail;
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struct he_virt *rbps_virt;
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int rbps_peak;
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dma_addr_t tbrq_phys;
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struct he_tbrq *tbrq_base, *tbrq_head;
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int tbrq_peak;
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