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path: root/drivers/net/sk98lin/skge.c
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Diffstat (limited to 'drivers/net/sk98lin/skge.c')
-rw-r--r--drivers/net/sk98lin/skge.c165
1 files changed, 36 insertions, 129 deletions
diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index b18c92cb629e..857ade447889 100644
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -101,7 +101,6 @@
101 * "h/skgeinit.h" 101 * "h/skgeinit.h"
102 * "h/skaddr.h" 102 * "h/skaddr.h"
103 * "h/skgesirq.h" 103 * "h/skgesirq.h"
104 * "h/skcsum.h"
105 * "h/skrlmt.h" 104 * "h/skrlmt.h"
106 * 105 *
107 ******************************************************************************/ 106 ******************************************************************************/
@@ -113,6 +112,7 @@
113#include <linux/init.h> 112#include <linux/init.h>
114#include <linux/proc_fs.h> 113#include <linux/proc_fs.h>
115#include <linux/dma-mapping.h> 114#include <linux/dma-mapping.h>
115#include <linux/ip.h>
116 116
117#include "h/skdrv1st.h" 117#include "h/skdrv1st.h"
118#include "h/skdrv2nd.h" 118#include "h/skdrv2nd.h"
@@ -601,11 +601,6 @@ SK_BOOL DualNet;
601 return(-EAGAIN); 601 return(-EAGAIN);
602 } 602 }
603 603
604 SkCsSetReceiveFlags(pAC,
605 SKCS_PROTO_IP | SKCS_PROTO_TCP | SKCS_PROTO_UDP,
606 &pAC->CsOfs1, &pAC->CsOfs2, 0);
607 pAC->CsOfs = (pAC->CsOfs2 << 16) | pAC->CsOfs1;
608
609 BoardInitMem(pAC); 604 BoardInitMem(pAC);
610 /* tschilling: New common function with minimum size check. */ 605 /* tschilling: New common function with minimum size check. */
611 DualNet = SK_FALSE; 606 DualNet = SK_FALSE;
@@ -823,7 +818,7 @@ uintptr_t VNextDescr; /* the virtual bus address of the next descriptor */
823 /* set the pointers right */ 818 /* set the pointers right */
824 pDescr->VNextRxd = VNextDescr & 0xffffffffULL; 819 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
825 pDescr->pNextRxd = pNextDescr; 820 pDescr->pNextRxd = pNextDescr;
826 pDescr->TcpSumStarts = pAC->CsOfs; 821 pDescr->TcpSumStarts = 0;
827 822
828 /* advance one step */ 823 /* advance one step */
829 pPrevDescr = pDescr; 824 pPrevDescr = pDescr;
@@ -1505,8 +1500,6 @@ struct sk_buff *pMessage) /* pointer to send-message */
1505 TXD *pOldTxd; 1500 TXD *pOldTxd;
1506 unsigned long Flags; 1501 unsigned long Flags;
1507 SK_U64 PhysAddr; 1502 SK_U64 PhysAddr;
1508 int Protocol;
1509 int IpHeaderLength;
1510 int BytesSend = pMessage->len; 1503 int BytesSend = pMessage->len;
1511 1504
1512 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("X")); 1505 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("X"));
@@ -1579,8 +1572,10 @@ struct sk_buff *pMessage) /* pointer to send-message */
1579 pTxd->pMBuf = pMessage; 1572 pTxd->pMBuf = pMessage;
1580 1573
1581 if (pMessage->ip_summed == CHECKSUM_HW) { 1574 if (pMessage->ip_summed == CHECKSUM_HW) {
1582 Protocol = ((SK_U8)pMessage->data[C_OFFSET_IPPROTO] & 0xff); 1575 u16 hdrlen = pMessage->h.raw - pMessage->data;
1583 if ((Protocol == C_PROTO_ID_UDP) && 1576 u16 offset = hdrlen + pMessage->csum;
1577
1578 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1584 (pAC->GIni.GIChipRev == 0) && 1579 (pAC->GIni.GIChipRev == 0) &&
1585 (pAC->GIni.GIChipId == CHIP_ID_YUKON)) { 1580 (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1586 pTxd->TBControl = BMU_TCP_CHECK; 1581 pTxd->TBControl = BMU_TCP_CHECK;
@@ -1588,14 +1583,9 @@ struct sk_buff *pMessage) /* pointer to send-message */
1588 pTxd->TBControl = BMU_UDP_CHECK; 1583 pTxd->TBControl = BMU_UDP_CHECK;
1589 } 1584 }
1590 1585
1591 IpHeaderLength = (SK_U8)pMessage->data[C_OFFSET_IPHEADER]; 1586 pTxd->TcpSumOfs = 0;
1592 IpHeaderLength = (IpHeaderLength & 0xf) * 4; 1587 pTxd->TcpSumSt = hdrlen;
1593 pTxd->TcpSumOfs = 0; /* PH-Checksum already calculated */ 1588 pTxd->TcpSumWr = offset;
1594 pTxd->TcpSumSt = C_LEN_ETHERMAC_HEADER + IpHeaderLength +
1595 (Protocol == C_PROTO_ID_UDP ?
1596 C_OFFSET_UDPHEADER_UDPCS :
1597 C_OFFSET_TCPHEADER_TCPCS);
1598 pTxd->TcpSumWr = C_LEN_ETHERMAC_HEADER + IpHeaderLength;
1599 1589
1600 pTxd->TBControl |= BMU_OWN | BMU_STF | 1590 pTxd->TBControl |= BMU_OWN | BMU_STF |
1601 BMU_SW | BMU_EOF | 1591 BMU_SW | BMU_EOF |
@@ -1658,11 +1648,10 @@ struct sk_buff *pMessage) /* pointer to send-message */
1658 TXD *pTxdLst; 1648 TXD *pTxdLst;
1659 int CurrFrag; 1649 int CurrFrag;
1660 int BytesSend; 1650 int BytesSend;
1661 int IpHeaderLength;
1662 int Protocol;
1663 skb_frag_t *sk_frag; 1651 skb_frag_t *sk_frag;
1664 SK_U64 PhysAddr; 1652 SK_U64 PhysAddr;
1665 unsigned long Flags; 1653 unsigned long Flags;
1654 SK_U32 Control;
1666 1655
1667 spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags); 1656 spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1668#ifndef USE_TX_COMPLETE 1657#ifndef USE_TX_COMPLETE
@@ -1685,7 +1674,6 @@ struct sk_buff *pMessage) /* pointer to send-message */
1685 pTxdFst = pTxd; 1674 pTxdFst = pTxd;
1686 pTxdLst = pTxd; 1675 pTxdLst = pTxd;
1687 BytesSend = 0; 1676 BytesSend = 0;
1688 Protocol = 0;
1689 1677
1690 /* 1678 /*
1691 ** Map the first fragment (header) into the DMA-space 1679 ** Map the first fragment (header) into the DMA-space
@@ -1703,32 +1691,31 @@ struct sk_buff *pMessage) /* pointer to send-message */
1703 ** Does the HW need to evaluate checksum for TCP or UDP packets? 1691 ** Does the HW need to evaluate checksum for TCP or UDP packets?
1704 */ 1692 */
1705 if (pMessage->ip_summed == CHECKSUM_HW) { 1693 if (pMessage->ip_summed == CHECKSUM_HW) {
1706 pTxd->TBControl = BMU_STF | BMU_STFWD | skb_headlen(pMessage); 1694 u16 hdrlen = pMessage->h.raw - pMessage->data;
1695 u16 offset = hdrlen + pMessage->csum;
1696
1697 Control = BMU_STFWD;
1698
1707 /* 1699 /*
1708 ** We have to use the opcode for tcp here, because the 1700 ** We have to use the opcode for tcp here, because the
1709 ** opcode for udp is not working in the hardware yet 1701 ** opcode for udp is not working in the hardware yet
1710 ** (Revision 2.0) 1702 ** (Revision 2.0)
1711 */ 1703 */
1712 Protocol = ((SK_U8)pMessage->data[C_OFFSET_IPPROTO] & 0xff); 1704 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1713 if ((Protocol == C_PROTO_ID_UDP) &&
1714 (pAC->GIni.GIChipRev == 0) && 1705 (pAC->GIni.GIChipRev == 0) &&
1715 (pAC->GIni.GIChipId == CHIP_ID_YUKON)) { 1706 (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1716 pTxd->TBControl |= BMU_TCP_CHECK; 1707 Control |= BMU_TCP_CHECK;
1717 } else { 1708 } else {
1718 pTxd->TBControl |= BMU_UDP_CHECK; 1709 Control |= BMU_UDP_CHECK;
1719 } 1710 }
1720 1711
1721 IpHeaderLength = ((SK_U8)pMessage->data[C_OFFSET_IPHEADER] & 0xf)*4; 1712 pTxd->TcpSumOfs = 0;
1722 pTxd->TcpSumOfs = 0; /* PH-Checksum already claculated */ 1713 pTxd->TcpSumSt = hdrlen;
1723 pTxd->TcpSumSt = C_LEN_ETHERMAC_HEADER + IpHeaderLength + 1714 pTxd->TcpSumWr = offset;
1724 (Protocol == C_PROTO_ID_UDP ? 1715 } else
1725 C_OFFSET_UDPHEADER_UDPCS : 1716 Control = BMU_CHECK | BMU_SW;
1726 C_OFFSET_TCPHEADER_TCPCS); 1717
1727 pTxd->TcpSumWr = C_LEN_ETHERMAC_HEADER + IpHeaderLength; 1718 pTxd->TBControl = BMU_STF | Control | skb_headlen(pMessage);
1728 } else {
1729 pTxd->TBControl = BMU_CHECK | BMU_SW | BMU_STF |
1730 skb_headlen(pMessage);
1731 }
1732 1719
1733 pTxd = pTxd->pNextTxd; 1720 pTxd = pTxd->pNextTxd;
1734 pTxPort->TxdRingFree--; 1721 pTxPort->TxdRingFree--;
@@ -1752,40 +1739,18 @@ struct sk_buff *pMessage) /* pointer to send-message */
1752 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32); 1739 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1753 pTxd->pMBuf = pMessage; 1740 pTxd->pMBuf = pMessage;
1754 1741
1755 /* 1742 pTxd->TBControl = Control | BMU_OWN | sk_frag->size;;
1756 ** Does the HW need to evaluate checksum for TCP or UDP packets?
1757 */
1758 if (pMessage->ip_summed == CHECKSUM_HW) {
1759 pTxd->TBControl = BMU_OWN | BMU_SW | BMU_STFWD;
1760 /*
1761 ** We have to use the opcode for tcp here because the
1762 ** opcode for udp is not working in the hardware yet
1763 ** (revision 2.0)
1764 */
1765 if ((Protocol == C_PROTO_ID_UDP) &&
1766 (pAC->GIni.GIChipRev == 0) &&
1767 (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1768 pTxd->TBControl |= BMU_TCP_CHECK;
1769 } else {
1770 pTxd->TBControl |= BMU_UDP_CHECK;
1771 }
1772 } else {
1773 pTxd->TBControl = BMU_CHECK | BMU_SW | BMU_OWN;
1774 }
1775 1743
1776 /* 1744 /*
1777 ** Do we have the last fragment? 1745 ** Do we have the last fragment?
1778 */ 1746 */
1779 if( (CurrFrag+1) == skb_shinfo(pMessage)->nr_frags ) { 1747 if( (CurrFrag+1) == skb_shinfo(pMessage)->nr_frags ) {
1780#ifdef USE_TX_COMPLETE 1748#ifdef USE_TX_COMPLETE
1781 pTxd->TBControl |= BMU_EOF | BMU_IRQ_EOF | sk_frag->size; 1749 pTxd->TBControl |= BMU_EOF | BMU_IRQ_EOF;
1782#else 1750#else
1783 pTxd->TBControl |= BMU_EOF | sk_frag->size; 1751 pTxd->TBControl |= BMU_EOF;
1784#endif 1752#endif
1785 pTxdFst->TBControl |= BMU_OWN | BMU_SW; 1753 pTxdFst->TBControl |= BMU_OWN | BMU_SW;
1786
1787 } else {
1788 pTxd->TBControl |= sk_frag->size;
1789 } 1754 }
1790 pTxdLst = pTxd; 1755 pTxdLst = pTxd;
1791 pTxd = pTxd->pNextTxd; 1756 pTxd = pTxd->pNextTxd;
@@ -2032,7 +1997,6 @@ SK_U32 Control; /* control field of descriptor */
2032struct sk_buff *pMsg; /* pointer to message holding frame */ 1997struct sk_buff *pMsg; /* pointer to message holding frame */
2033struct sk_buff *pNewMsg; /* pointer to a new message for copying frame */ 1998struct sk_buff *pNewMsg; /* pointer to a new message for copying frame */
2034int FrameLength; /* total length of received frame */ 1999int FrameLength; /* total length of received frame */
2035int IpFrameLength;
2036SK_MBUF *pRlmtMbuf; /* ptr to a buffer for giving a frame to rlmt */ 2000SK_MBUF *pRlmtMbuf; /* ptr to a buffer for giving a frame to rlmt */
2037SK_EVPARA EvPara; /* an event parameter union */ 2001SK_EVPARA EvPara; /* an event parameter union */
2038unsigned long Flags; /* for spin lock */ 2002unsigned long Flags; /* for spin lock */
@@ -2045,10 +2009,6 @@ SK_BOOL IsMc;
2045SK_BOOL IsBadFrame; /* Bad frame */ 2009SK_BOOL IsBadFrame; /* Bad frame */
2046 2010
2047SK_U32 FrameStat; 2011SK_U32 FrameStat;
2048unsigned short Csum1;
2049unsigned short Csum2;
2050unsigned short Type;
2051int Result;
2052SK_U64 PhysAddr; 2012SK_U64 PhysAddr;
2053 2013
2054rx_start: 2014rx_start:
@@ -2177,8 +2137,8 @@ rx_start:
2177 (dma_addr_t) PhysAddr, 2137 (dma_addr_t) PhysAddr,
2178 FrameLength, 2138 FrameLength,
2179 PCI_DMA_FROMDEVICE); 2139 PCI_DMA_FROMDEVICE);
2180 eth_copy_and_sum(pNewMsg, pMsg->data, 2140 memcpy(pNewMsg->data, pMsg, FrameLength);
2181 FrameLength, 0); 2141
2182 pci_dma_sync_single_for_device(pAC->PciDev, 2142 pci_dma_sync_single_for_device(pAC->PciDev,
2183 (dma_addr_t) PhysAddr, 2143 (dma_addr_t) PhysAddr,
2184 FrameLength, 2144 FrameLength,
@@ -2206,69 +2166,16 @@ rx_start:
2206 2166
2207 /* set length in message */ 2167 /* set length in message */
2208 skb_put(pMsg, FrameLength); 2168 skb_put(pMsg, FrameLength);
2209 /* hardware checksum */ 2169 } /* frame > SK_COPY_TRESHOLD */
2210 Type = ntohs(*((short*)&pMsg->data[12]));
2211 2170
2212#ifdef USE_SK_RX_CHECKSUM 2171#ifdef USE_SK_RX_CHECKSUM
2213 if (Type == 0x800) { 2172 pMsg->csum = pRxd->TcpSums;
2214 Csum1=le16_to_cpu(pRxd->TcpSums & 0xffff); 2173 pMsg->ip_summed = CHECKSUM_HW;
2215 Csum2=le16_to_cpu((pRxd->TcpSums >> 16) & 0xffff);
2216 IpFrameLength = (int) ntohs((unsigned short)
2217 ((unsigned short *) pMsg->data)[8]);
2218
2219 /*
2220 * Test: If frame is padded, a check is not possible!
2221 * Frame not padded? Length difference must be 14 (0xe)!
2222 */
2223 if ((FrameLength - IpFrameLength) != 0xe) {
2224 /* Frame padded => TCP offload not possible! */
2225 pMsg->ip_summed = CHECKSUM_NONE;
2226 } else {
2227 /* Frame not padded => TCP offload! */
2228 if ((((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) &&
2229 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) ||
2230 (pAC->ChipsetType)) {
2231 Result = SkCsGetReceiveInfo(pAC,
2232 &pMsg->data[14],
2233 Csum1, Csum2, pRxPort->PortIndex);
2234 if (Result ==
2235 SKCS_STATUS_IP_FRAGMENT ||
2236 Result ==
2237 SKCS_STATUS_IP_CSUM_OK ||
2238 Result ==
2239 SKCS_STATUS_TCP_CSUM_OK ||
2240 Result ==
2241 SKCS_STATUS_UDP_CSUM_OK) {
2242 pMsg->ip_summed =
2243 CHECKSUM_UNNECESSARY;
2244 }
2245 else if (Result ==
2246 SKCS_STATUS_TCP_CSUM_ERROR ||
2247 Result ==
2248 SKCS_STATUS_UDP_CSUM_ERROR ||
2249 Result ==
2250 SKCS_STATUS_IP_CSUM_ERROR_UDP ||
2251 Result ==
2252 SKCS_STATUS_IP_CSUM_ERROR_TCP ||
2253 Result ==
2254 SKCS_STATUS_IP_CSUM_ERROR ) {
2255 /* HW Checksum error */
2256 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2257 SK_DBGCAT_DRV_RX_PROGRESS,
2258 ("skge: CRC error. Frame dropped!\n"));
2259 goto rx_failed;
2260 } else {
2261 pMsg->ip_summed =
2262 CHECKSUM_NONE;
2263 }
2264 }/* checksumControl calculation valid */
2265 } /* Frame length check */
2266 } /* IP frame */
2267#else 2174#else
2268 pMsg->ip_summed = CHECKSUM_NONE; 2175 pMsg->ip_summed = CHECKSUM_NONE;
2269#endif 2176#endif
2270 } /* frame > SK_COPY_TRESHOLD */ 2177
2271 2178
2272 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V")); 2179 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2273 ForRlmt = SK_RLMT_RX_PROTOCOL; 2180 ForRlmt = SK_RLMT_RX_PROTOCOL;
2274#if 0 2181#if 0
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 17:37:29 -0500