forked from luck/tmp_suning_uos_patched
[PATCH] ns83820 update
Changes: - improved DAC ifdefs from Andi Kleen - removal of dead code from Adrian Bunk - fix half duplex collision behaviour
This commit is contained in:
Benjamin LaHaise
Jeff Garzik
parent
88d7bd8cb9
commit
c16ef1ceed
@ -1,4 +1,4 @@
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#define _VERSION "0.20"
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#define VERSION "0.22"
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/* ns83820.c by Benjamin LaHaise with contributions.
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*
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* Questions/comments/discussion to linux-ns83820@kvack.org.
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@ -63,9 +63,11 @@
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* - fix missed txok introduced during performance
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* tuning
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* 0.20 - fix stupid RFEN thinko. i am such a smurf.
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*
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* 20040828 0.21 - add hardware vlan accleration
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* by Neil Horman <nhorman@redhat.com>
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* 20050406 0.22 - improved DAC ifdefs from Andi Kleen
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* - removal of dead code from Adrian Bunk
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* - fix half duplex collision behaviour
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* Driver Overview
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* ===============
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*
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@ -129,18 +131,6 @@ static int lnksts = 0; /* CFG_LNKSTS bit polarity */
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#undef Dprintk
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#define Dprintk dprintk
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#if defined(CONFIG_HIGHMEM64G) || defined(__ia64__)
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#define USE_64BIT_ADDR "+"
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#endif
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#if defined(USE_64BIT_ADDR)
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#define VERSION _VERSION USE_64BIT_ADDR
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#define TRY_DAC 1
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#else
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#define VERSION _VERSION
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#define TRY_DAC 0
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#endif
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/* tunables */
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#define RX_BUF_SIZE 1500 /* 8192 */
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#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
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@ -386,22 +376,16 @@ static int lnksts = 0; /* CFG_LNKSTS bit polarity */
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#define LINK_DOWN 0x02
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#define LINK_UP 0x04
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#ifdef USE_64BIT_ADDR
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#define HW_ADDR_LEN 8
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#define HW_ADDR_LEN sizeof(dma_addr_t)
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#define desc_addr_set(desc, addr) \
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do { \
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u64 __addr = (addr); \
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(desc)[0] = cpu_to_le32(__addr); \
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(desc)[1] = cpu_to_le32(__addr >> 32); \
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((desc)[0] = cpu_to_le32(addr)); \
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if (HW_ADDR_LEN == 8) \
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(desc)[1] = cpu_to_le32(((u64)addr) >> 32); \
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} while(0)
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#define desc_addr_get(desc) \
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(((u64)le32_to_cpu((desc)[1]) << 32) \
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| le32_to_cpu((desc)[0]))
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#else
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#define HW_ADDR_LEN 4
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#define desc_addr_set(desc, addr) ((desc)[0] = cpu_to_le32(addr))
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#define desc_addr_get(desc) (le32_to_cpu((desc)[0]))
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#endif
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(le32_to_cpu((desc)[0]) | \
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(HW_ADDR_LEN == 8 ? ((dma_addr_t)le32_to_cpu((desc)[1]))<<32 : 0))
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#define DESC_LINK 0
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#define DESC_BUFPTR (DESC_LINK + HW_ADDR_LEN/4)
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@ -727,11 +711,23 @@ static void fastcall phy_intr(struct net_device *ndev)
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speed = ((cfg / CFG_SPDSTS0) & 3);
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fullduplex = (cfg & CFG_DUPSTS);
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if (fullduplex)
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if (fullduplex) {
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new_cfg |= CFG_SB;
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writel(readl(dev->base + TXCFG)
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| TXCFG_CSI | TXCFG_HBI,
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dev->base + TXCFG);
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writel(readl(dev->base + RXCFG) | RXCFG_RX_FD,
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dev->base + RXCFG);
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} else {
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writel(readl(dev->base + TXCFG)
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& ~(TXCFG_CSI | TXCFG_HBI),
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dev->base + TXCFG);
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writel(readl(dev->base + RXCFG) & ~(RXCFG_RX_FD),
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dev->base + RXCFG);
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}
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if ((cfg & CFG_LNKSTS) &&
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((new_cfg ^ dev->CFG_cache) & CFG_MODE_1000)) {
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((new_cfg ^ dev->CFG_cache) != 0)) {
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writel(new_cfg, dev->base + CFG);
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dev->CFG_cache = new_cfg;
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}
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@ -1189,7 +1185,6 @@ static int ns83820_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
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for (;;) {
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volatile u32 *desc = dev->tx_descs + (free_idx * DESC_SIZE);
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u32 residue = 0;
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dprintk("frag[%3u]: %4u @ 0x%08Lx\n", free_idx, len,
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(unsigned long long)buf);
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@ -1199,17 +1194,11 @@ static int ns83820_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
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desc_addr_set(desc + DESC_BUFPTR, buf);
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desc[DESC_EXTSTS] = cpu_to_le32(extsts);
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cmdsts = ((nr_frags|residue) ? CMDSTS_MORE : do_intr ? CMDSTS_INTR : 0);
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cmdsts = ((nr_frags) ? CMDSTS_MORE : do_intr ? CMDSTS_INTR : 0);
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cmdsts |= (desc == first_desc) ? 0 : CMDSTS_OWN;
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cmdsts |= len;
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desc[DESC_CMDSTS] = cpu_to_le32(cmdsts);
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if (residue) {
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buf += len;
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len = residue;
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continue;
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}
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if (!nr_frags)
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break;
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@ -1841,7 +1830,8 @@ static int __devinit ns83820_init_one(struct pci_dev *pci_dev, const struct pci_
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int using_dac = 0;
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/* See if we can set the dma mask early on; failure is fatal. */
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if (TRY_DAC && !pci_set_dma_mask(pci_dev, 0xffffffffffffffffULL)) {
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if (sizeof(dma_addr_t) == 8 &&
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!pci_set_dma_mask(pci_dev, 0xffffffffffffffffULL)) {
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using_dac = 1;
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} else if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
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using_dac = 0;
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@ -1972,9 +1962,8 @@ static int __devinit ns83820_init_one(struct pci_dev *pci_dev, const struct pci_
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/* When compiled with 64 bit addressing, we must always enable
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* the 64 bit descriptor format.
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*/
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#ifdef USE_64BIT_ADDR
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dev->CFG_cache |= CFG_M64ADDR;
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#endif
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if (sizeof(dma_addr_t) == 8)
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dev->CFG_cache |= CFG_M64ADDR;
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if (using_dac)
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dev->CFG_cache |= CFG_T64ADDR;
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