1407 lines
36 KiB
C
1407 lines
36 KiB
C
/*
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* Copyright (C) 2003 - 2006 NetXen, Inc.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.
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*
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* Contact Information:
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* info@netxen.com
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* NetXen,
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* 3965 Freedom Circle, Fourth floor,
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* Santa Clara, CA 95054
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*
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*
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* Source file for NIC routines to initialize the Phantom Hardware
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*
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*/
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#include <linux/netdevice.h>
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#include <linux/delay.h>
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#include "netxen_nic.h"
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#include "netxen_nic_hw.h"
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#include "netxen_nic_phan_reg.h"
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struct crb_addr_pair {
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u32 addr;
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u32 data;
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};
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unsigned long last_schedule_time;
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#define NETXEN_MAX_CRB_XFORM 60
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static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
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#define NETXEN_ADDR_ERROR (0xffffffff)
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#define crb_addr_transform(name) \
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crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
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NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
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#define NETXEN_NIC_XDMA_RESET 0x8000ff
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static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
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uint32_t ctx, uint32_t ringid);
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#if 0
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static void netxen_nic_locked_write_reg(struct netxen_adapter *adapter,
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unsigned long off, int *data)
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{
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void __iomem *addr = pci_base_offset(adapter, off);
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writel(*data, addr);
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}
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#endif /* 0 */
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static void crb_addr_transform_setup(void)
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{
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crb_addr_transform(XDMA);
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crb_addr_transform(TIMR);
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crb_addr_transform(SRE);
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crb_addr_transform(SQN3);
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crb_addr_transform(SQN2);
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crb_addr_transform(SQN1);
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crb_addr_transform(SQN0);
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crb_addr_transform(SQS3);
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crb_addr_transform(SQS2);
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crb_addr_transform(SQS1);
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crb_addr_transform(SQS0);
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crb_addr_transform(RPMX7);
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crb_addr_transform(RPMX6);
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crb_addr_transform(RPMX5);
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crb_addr_transform(RPMX4);
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crb_addr_transform(RPMX3);
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crb_addr_transform(RPMX2);
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crb_addr_transform(RPMX1);
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crb_addr_transform(RPMX0);
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crb_addr_transform(ROMUSB);
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crb_addr_transform(SN);
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crb_addr_transform(QMN);
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crb_addr_transform(QMS);
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crb_addr_transform(PGNI);
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crb_addr_transform(PGND);
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crb_addr_transform(PGN3);
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crb_addr_transform(PGN2);
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crb_addr_transform(PGN1);
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crb_addr_transform(PGN0);
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crb_addr_transform(PGSI);
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crb_addr_transform(PGSD);
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crb_addr_transform(PGS3);
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crb_addr_transform(PGS2);
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crb_addr_transform(PGS1);
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crb_addr_transform(PGS0);
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crb_addr_transform(PS);
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crb_addr_transform(PH);
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crb_addr_transform(NIU);
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crb_addr_transform(I2Q);
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crb_addr_transform(EG);
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crb_addr_transform(MN);
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crb_addr_transform(MS);
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crb_addr_transform(CAS2);
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crb_addr_transform(CAS1);
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crb_addr_transform(CAS0);
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crb_addr_transform(CAM);
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crb_addr_transform(C2C1);
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crb_addr_transform(C2C0);
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crb_addr_transform(SMB);
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}
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int netxen_init_firmware(struct netxen_adapter *adapter)
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{
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u32 state = 0, loops = 0, err = 0;
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/* Window 1 call */
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state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
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if (state == PHAN_INITIALIZE_ACK)
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return 0;
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while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) {
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udelay(100);
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/* Window 1 call */
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state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
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loops++;
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}
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if (loops >= 2000) {
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printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n",
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state);
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err = -EIO;
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return err;
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}
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/* Window 1 call */
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writel(INTR_SCHEME_PERPORT,
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NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_HOST));
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writel(MSI_MODE_MULTIFUNC,
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NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_MSI_MODE_HOST));
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writel(MPORT_MULTI_FUNCTION_MODE,
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NETXEN_CRB_NORMALIZE(adapter, CRB_MPORT_MODE));
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writel(PHAN_INITIALIZE_ACK,
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NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
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return err;
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}
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#define NETXEN_ADDR_LIMIT 0xffffffffULL
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void *netxen_alloc(struct pci_dev *pdev, size_t sz, dma_addr_t * ptr,
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struct pci_dev **used_dev)
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{
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void *addr;
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addr = pci_alloc_consistent(pdev, sz, ptr);
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if ((unsigned long long)(*ptr) < NETXEN_ADDR_LIMIT) {
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*used_dev = pdev;
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return addr;
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}
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pci_free_consistent(pdev, sz, addr, *ptr);
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addr = pci_alloc_consistent(NULL, sz, ptr);
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*used_dev = NULL;
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return addr;
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}
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void netxen_initialize_adapter_sw(struct netxen_adapter *adapter)
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{
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int ctxid, ring;
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u32 i;
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u32 num_rx_bufs = 0;
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struct netxen_rcv_desc_ctx *rcv_desc;
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DPRINTK(INFO, "initializing some queues: %p\n", adapter);
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for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) {
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for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
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struct netxen_rx_buffer *rx_buf;
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rcv_desc = &adapter->recv_ctx[ctxid].rcv_desc[ring];
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rcv_desc->begin_alloc = 0;
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rx_buf = rcv_desc->rx_buf_arr;
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num_rx_bufs = rcv_desc->max_rx_desc_count;
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/*
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* Now go through all of them, set reference handles
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* and put them in the queues.
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*/
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for (i = 0; i < num_rx_bufs; i++) {
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rx_buf->ref_handle = i;
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rx_buf->state = NETXEN_BUFFER_FREE;
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DPRINTK(INFO, "Rx buf:ctx%d i(%d) rx_buf:"
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"%p\n", ctxid, i, rx_buf);
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rx_buf++;
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}
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}
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}
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}
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void netxen_initialize_adapter_hw(struct netxen_adapter *adapter)
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{
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int ports = 0;
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struct netxen_board_info *board_info = &(adapter->ahw.boardcfg);
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if (netxen_nic_get_board_info(adapter) != 0)
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printk("%s: Error getting board config info.\n",
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netxen_nic_driver_name);
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get_brd_port_by_type(board_info->board_type, &ports);
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if (ports == 0)
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printk(KERN_ERR "%s: Unknown board type\n",
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netxen_nic_driver_name);
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adapter->ahw.max_ports = ports;
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}
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void netxen_initialize_adapter_ops(struct netxen_adapter *adapter)
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{
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switch (adapter->ahw.board_type) {
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case NETXEN_NIC_GBE:
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adapter->enable_phy_interrupts =
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netxen_niu_gbe_enable_phy_interrupts;
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adapter->disable_phy_interrupts =
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netxen_niu_gbe_disable_phy_interrupts;
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adapter->handle_phy_intr = netxen_nic_gbe_handle_phy_intr;
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adapter->macaddr_set = netxen_niu_macaddr_set;
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adapter->set_mtu = netxen_nic_set_mtu_gb;
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adapter->set_promisc = netxen_niu_set_promiscuous_mode;
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adapter->unset_promisc = netxen_niu_set_promiscuous_mode;
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adapter->phy_read = netxen_niu_gbe_phy_read;
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adapter->phy_write = netxen_niu_gbe_phy_write;
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adapter->init_niu = netxen_nic_init_niu_gb;
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adapter->stop_port = netxen_niu_disable_gbe_port;
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break;
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case NETXEN_NIC_XGBE:
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adapter->enable_phy_interrupts =
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netxen_niu_xgbe_enable_phy_interrupts;
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adapter->disable_phy_interrupts =
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netxen_niu_xgbe_disable_phy_interrupts;
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adapter->handle_phy_intr = netxen_nic_xgbe_handle_phy_intr;
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adapter->macaddr_set = netxen_niu_xg_macaddr_set;
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adapter->set_mtu = netxen_nic_set_mtu_xgb;
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adapter->init_port = netxen_niu_xg_init_port;
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adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode;
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adapter->unset_promisc = netxen_niu_xg_set_promiscuous_mode;
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adapter->stop_port = netxen_niu_disable_xg_port;
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break;
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default:
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break;
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}
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}
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/*
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* netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
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* address to external PCI CRB address.
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*/
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static u32 netxen_decode_crb_addr(u32 addr)
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{
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int i;
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u32 base_addr, offset, pci_base;
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crb_addr_transform_setup();
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pci_base = NETXEN_ADDR_ERROR;
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base_addr = addr & 0xfff00000;
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offset = addr & 0x000fffff;
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for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
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if (crb_addr_xform[i] == base_addr) {
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pci_base = i << 20;
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break;
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}
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}
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if (pci_base == NETXEN_ADDR_ERROR)
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return pci_base;
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else
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return (pci_base + offset);
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}
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static long rom_max_timeout = 100;
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static long rom_lock_timeout = 10000;
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static long rom_write_timeout = 700;
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static int rom_lock(struct netxen_adapter *adapter)
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{
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int iter;
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u32 done = 0;
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int timeout = 0;
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while (!done) {
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/* acquire semaphore2 from PCI HW block */
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netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK),
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&done);
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if (done == 1)
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break;
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if (timeout >= rom_lock_timeout)
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return -EIO;
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timeout++;
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/*
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* Yield CPU
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*/
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if (!in_atomic())
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schedule();
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else {
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for (iter = 0; iter < 20; iter++)
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cpu_relax(); /*This a nop instr on i386 */
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}
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}
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netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER);
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return 0;
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}
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static int netxen_wait_rom_done(struct netxen_adapter *adapter)
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{
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long timeout = 0;
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long done = 0;
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while (done == 0) {
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done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS);
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done &= 2;
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timeout++;
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if (timeout >= rom_max_timeout) {
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printk("Timeout reached waiting for rom done");
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return -EIO;
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}
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}
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return 0;
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}
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static int netxen_rom_wren(struct netxen_adapter *adapter)
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{
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/* Set write enable latch in ROM status register */
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
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M25P_INSTR_WREN);
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if (netxen_wait_rom_done(adapter)) {
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return -1;
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}
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return 0;
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}
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static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter,
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unsigned int addr)
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{
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unsigned int data = 0xdeaddead;
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data = netxen_nic_reg_read(adapter, addr);
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return data;
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}
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static int netxen_do_rom_rdsr(struct netxen_adapter *adapter)
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{
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
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M25P_INSTR_RDSR);
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if (netxen_wait_rom_done(adapter)) {
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return -1;
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}
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return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA);
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}
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static void netxen_rom_unlock(struct netxen_adapter *adapter)
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{
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u32 val;
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/* release semaphore2 */
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netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val);
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}
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static int netxen_rom_wip_poll(struct netxen_adapter *adapter)
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{
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long timeout = 0;
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long wip = 1;
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int val;
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
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while (wip != 0) {
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val = netxen_do_rom_rdsr(adapter);
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wip = val & 1;
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timeout++;
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if (timeout > rom_max_timeout) {
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return -1;
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}
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}
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return 0;
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}
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static int do_rom_fast_write(struct netxen_adapter *adapter, int addr,
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int data)
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{
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if (netxen_rom_wren(adapter)) {
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return -1;
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}
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
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M25P_INSTR_PP);
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if (netxen_wait_rom_done(adapter)) {
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
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return -1;
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}
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return netxen_rom_wip_poll(adapter);
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}
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static int do_rom_fast_read(struct netxen_adapter *adapter,
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int addr, int *valp)
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{
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cond_resched();
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
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udelay(100); /* prevent bursting on CRB */
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
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if (netxen_wait_rom_done(adapter)) {
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printk("Error waiting for rom done\n");
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return -EIO;
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}
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/* reset abyte_cnt and dummy_byte_cnt */
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
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udelay(100); /* prevent bursting on CRB */
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netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
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*valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA);
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return 0;
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}
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static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
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u8 *bytes, size_t size)
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{
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int addridx;
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int ret = 0;
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for (addridx = addr; addridx < (addr + size); addridx += 4) {
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int v;
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ret = do_rom_fast_read(adapter, addridx, &v);
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if (ret != 0)
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break;
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*(__le32 *)bytes = cpu_to_le32(v);
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bytes += 4;
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}
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return ret;
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}
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int
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netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
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u8 *bytes, size_t size)
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{
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int ret;
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ret = rom_lock(adapter);
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if (ret < 0)
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return ret;
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ret = do_rom_fast_read_words(adapter, addr, bytes, size);
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netxen_rom_unlock(adapter);
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return ret;
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}
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int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
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{
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int ret;
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if (rom_lock(adapter) != 0)
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return -EIO;
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ret = do_rom_fast_read(adapter, addr, valp);
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netxen_rom_unlock(adapter);
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return ret;
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}
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#if 0
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int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data)
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{
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int ret = 0;
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|
|
if (rom_lock(adapter) != 0) {
|
|
return -1;
|
|
}
|
|
ret = do_rom_fast_write(adapter, addr, data);
|
|
netxen_rom_unlock(adapter);
|
|
return ret;
|
|
}
|
|
#endif /* 0 */
|
|
|
|
static int do_rom_fast_write_words(struct netxen_adapter *adapter,
|
|
int addr, u8 *bytes, size_t size)
|
|
{
|
|
int addridx = addr;
|
|
int ret = 0;
|
|
|
|
while (addridx < (addr + size)) {
|
|
int last_attempt = 0;
|
|
int timeout = 0;
|
|
int data;
|
|
|
|
data = le32_to_cpu((*(__le32*)bytes));
|
|
ret = do_rom_fast_write(adapter, addridx, data);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
while(1) {
|
|
int data1;
|
|
|
|
ret = do_rom_fast_read(adapter, addridx, &data1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (data1 == data)
|
|
break;
|
|
|
|
if (timeout++ >= rom_write_timeout) {
|
|
if (last_attempt++ < 4) {
|
|
ret = do_rom_fast_write(adapter,
|
|
addridx, data);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
else {
|
|
printk(KERN_INFO "Data write did not "
|
|
"succeed at address 0x%x\n", addridx);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bytes += 4;
|
|
addridx += 4;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr,
|
|
u8 *bytes, size_t size)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret = rom_lock(adapter);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = do_rom_fast_write_words(adapter, addr, bytes, size);
|
|
netxen_rom_unlock(adapter);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data)
|
|
{
|
|
int ret;
|
|
|
|
ret = netxen_rom_wren(adapter);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
|
|
netxen_crb_writelit_adapter(adapter,
|
|
NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1);
|
|
|
|
ret = netxen_wait_rom_done(adapter);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return netxen_rom_wip_poll(adapter);
|
|
}
|
|
|
|
static int netxen_rom_rdsr(struct netxen_adapter *adapter)
|
|
{
|
|
int ret;
|
|
|
|
ret = rom_lock(adapter);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = netxen_do_rom_rdsr(adapter);
|
|
netxen_rom_unlock(adapter);
|
|
return ret;
|
|
}
|
|
|
|
int netxen_backup_crbinit(struct netxen_adapter *adapter)
|
|
{
|
|
int ret = FLASH_SUCCESS;
|
|
int val;
|
|
char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL);
|
|
|
|
if (!buffer)
|
|
return -ENOMEM;
|
|
/* unlock sector 63 */
|
|
val = netxen_rom_rdsr(adapter);
|
|
val = val & 0xe3;
|
|
ret = netxen_rom_wrsr(adapter, val);
|
|
if (ret != FLASH_SUCCESS)
|
|
goto out_kfree;
|
|
|
|
ret = netxen_rom_wip_poll(adapter);
|
|
if (ret != FLASH_SUCCESS)
|
|
goto out_kfree;
|
|
|
|
/* copy sector 0 to sector 63 */
|
|
ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START,
|
|
buffer, NETXEN_FLASH_SECTOR_SIZE);
|
|
if (ret != FLASH_SUCCESS)
|
|
goto out_kfree;
|
|
|
|
ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START,
|
|
buffer, NETXEN_FLASH_SECTOR_SIZE);
|
|
if (ret != FLASH_SUCCESS)
|
|
goto out_kfree;
|
|
|
|
/* lock sector 63 */
|
|
val = netxen_rom_rdsr(adapter);
|
|
if (!(val & 0x8)) {
|
|
val |= (0x1 << 2);
|
|
/* lock sector 63 */
|
|
if (netxen_rom_wrsr(adapter, val) == 0) {
|
|
ret = netxen_rom_wip_poll(adapter);
|
|
if (ret != FLASH_SUCCESS)
|
|
goto out_kfree;
|
|
|
|
/* lock SR writes */
|
|
ret = netxen_rom_wip_poll(adapter);
|
|
if (ret != FLASH_SUCCESS)
|
|
goto out_kfree;
|
|
}
|
|
}
|
|
|
|
out_kfree:
|
|
kfree(buffer);
|
|
return ret;
|
|
}
|
|
|
|
static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr)
|
|
{
|
|
netxen_rom_wren(adapter);
|
|
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
|
|
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
|
|
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
|
|
M25P_INSTR_SE);
|
|
if (netxen_wait_rom_done(adapter)) {
|
|
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
|
|
return -1;
|
|
}
|
|
return netxen_rom_wip_poll(adapter);
|
|
}
|
|
|
|
static void check_erased_flash(struct netxen_adapter *adapter, int addr)
|
|
{
|
|
int i;
|
|
int val;
|
|
int count = 0, erased_errors = 0;
|
|
int range;
|
|
|
|
range = (addr == NETXEN_USER_START) ?
|
|
NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE;
|
|
|
|
for (i = addr; i < range; i += 4) {
|
|
netxen_rom_fast_read(adapter, i, &val);
|
|
if (val != 0xffffffff)
|
|
erased_errors++;
|
|
count++;
|
|
}
|
|
|
|
if (erased_errors)
|
|
printk(KERN_INFO "0x%x out of 0x%x words fail to be erased "
|
|
"for sector address: %x\n", erased_errors, count, addr);
|
|
}
|
|
|
|
int netxen_rom_se(struct netxen_adapter *adapter, int addr)
|
|
{
|
|
int ret = 0;
|
|
if (rom_lock(adapter) != 0) {
|
|
return -1;
|
|
}
|
|
ret = netxen_do_rom_se(adapter, addr);
|
|
netxen_rom_unlock(adapter);
|
|
msleep(30);
|
|
check_erased_flash(adapter, addr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int netxen_flash_erase_sections(struct netxen_adapter *adapter,
|
|
int start, int end)
|
|
{
|
|
int ret = FLASH_SUCCESS;
|
|
int i;
|
|
|
|
for (i = start; i < end; i++) {
|
|
ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE);
|
|
if (ret)
|
|
break;
|
|
ret = netxen_rom_wip_poll(adapter);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
netxen_flash_erase_secondary(struct netxen_adapter *adapter)
|
|
{
|
|
int ret = FLASH_SUCCESS;
|
|
int start, end;
|
|
|
|
start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
|
|
end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE;
|
|
ret = netxen_flash_erase_sections(adapter, start, end);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
netxen_flash_erase_primary(struct netxen_adapter *adapter)
|
|
{
|
|
int ret = FLASH_SUCCESS;
|
|
int start, end;
|
|
|
|
start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE;
|
|
end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
|
|
ret = netxen_flash_erase_sections(adapter, start, end);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void netxen_halt_pegs(struct netxen_adapter *adapter)
|
|
{
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1);
|
|
}
|
|
|
|
int netxen_flash_unlock(struct netxen_adapter *adapter)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret = netxen_rom_wrsr(adapter, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = netxen_rom_wren(adapter);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define NETXEN_BOARDTYPE 0x4008
|
|
#define NETXEN_BOARDNUM 0x400c
|
|
#define NETXEN_CHIPNUM 0x4010
|
|
#define NETXEN_ROMBUS_RESET 0xFFFFFFFF
|
|
#define NETXEN_ROM_FIRST_BARRIER 0x800000000ULL
|
|
#define NETXEN_ROM_FOUND_INIT 0x400
|
|
|
|
int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
|
|
{
|
|
int addr, val, status;
|
|
int n, i;
|
|
int init_delay = 0;
|
|
struct crb_addr_pair *buf;
|
|
u32 off;
|
|
|
|
/* resetall */
|
|
status = netxen_nic_get_board_info(adapter);
|
|
if (status)
|
|
printk("%s: netxen_pinit_from_rom: Error getting board info\n",
|
|
netxen_nic_driver_name);
|
|
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
|
|
NETXEN_ROMBUS_RESET);
|
|
|
|
if (verbose) {
|
|
int val;
|
|
if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0)
|
|
printk("P2 ROM board type: 0x%08x\n", val);
|
|
else
|
|
printk("Could not read board type\n");
|
|
if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0)
|
|
printk("P2 ROM board num: 0x%08x\n", val);
|
|
else
|
|
printk("Could not read board number\n");
|
|
if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0)
|
|
printk("P2 ROM chip num: 0x%08x\n", val);
|
|
else
|
|
printk("Could not read chip number\n");
|
|
}
|
|
|
|
if (netxen_rom_fast_read(adapter, 0, &n) == 0
|
|
&& (n & NETXEN_ROM_FIRST_BARRIER)) {
|
|
n &= ~NETXEN_ROM_ROUNDUP;
|
|
if (n < NETXEN_ROM_FOUND_INIT) {
|
|
if (verbose)
|
|
printk("%s: %d CRB init values found"
|
|
" in ROM.\n", netxen_nic_driver_name, n);
|
|
} else {
|
|
printk("%s:n=0x%x Error! NetXen card flash not"
|
|
" initialized.\n", __FUNCTION__, n);
|
|
return -EIO;
|
|
}
|
|
buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
|
|
if (buf == NULL) {
|
|
printk("%s: netxen_pinit_from_rom: Unable to calloc "
|
|
"memory.\n", netxen_nic_driver_name);
|
|
return -ENOMEM;
|
|
}
|
|
for (i = 0; i < n; i++) {
|
|
if (netxen_rom_fast_read(adapter, 8 * i + 4, &val) != 0
|
|
|| netxen_rom_fast_read(adapter, 8 * i + 8,
|
|
&addr) != 0)
|
|
return -EIO;
|
|
|
|
buf[i].addr = addr;
|
|
buf[i].data = val;
|
|
|
|
if (verbose)
|
|
printk("%s: PCI: 0x%08x == 0x%08x\n",
|
|
netxen_nic_driver_name, (unsigned int)
|
|
netxen_decode_crb_addr(addr), val);
|
|
}
|
|
for (i = 0; i < n; i++) {
|
|
|
|
off = netxen_decode_crb_addr(buf[i].addr);
|
|
if (off == NETXEN_ADDR_ERROR) {
|
|
printk(KERN_ERR"CRB init value out of range %x\n",
|
|
buf[i].addr);
|
|
continue;
|
|
}
|
|
off += NETXEN_PCI_CRBSPACE;
|
|
/* skipping cold reboot MAGIC */
|
|
if (off == NETXEN_CAM_RAM(0x1fc))
|
|
continue;
|
|
|
|
/* After writing this register, HW needs time for CRB */
|
|
/* to quiet down (else crb_window returns 0xffffffff) */
|
|
if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
|
|
init_delay = 1;
|
|
/* hold xdma in reset also */
|
|
buf[i].data = NETXEN_NIC_XDMA_RESET;
|
|
}
|
|
|
|
if (ADDR_IN_WINDOW1(off)) {
|
|
writel(buf[i].data,
|
|
NETXEN_CRB_NORMALIZE(adapter, off));
|
|
} else {
|
|
netxen_nic_pci_change_crbwindow(adapter, 0);
|
|
writel(buf[i].data,
|
|
pci_base_offset(adapter, off));
|
|
|
|
netxen_nic_pci_change_crbwindow(adapter, 1);
|
|
}
|
|
if (init_delay == 1) {
|
|
msleep(2000);
|
|
init_delay = 0;
|
|
}
|
|
msleep(20);
|
|
}
|
|
kfree(buf);
|
|
|
|
/* disable_peg_cache_all */
|
|
|
|
/* unreset_net_cache */
|
|
netxen_nic_hw_read_wx(adapter, NETXEN_ROMUSB_GLB_SW_RESET, &val,
|
|
4);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
|
|
(val & 0xffffff0f));
|
|
/* p2dn replyCount */
|
|
netxen_crb_writelit_adapter(adapter,
|
|
NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
|
|
/* disable_peg_cache 0 */
|
|
netxen_crb_writelit_adapter(adapter,
|
|
NETXEN_CRB_PEG_NET_D + 0x4c, 8);
|
|
/* disable_peg_cache 1 */
|
|
netxen_crb_writelit_adapter(adapter,
|
|
NETXEN_CRB_PEG_NET_I + 0x4c, 8);
|
|
|
|
/* peg_clr_all */
|
|
|
|
/* peg_clr 0 */
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8,
|
|
0);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc,
|
|
0);
|
|
/* peg_clr 1 */
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8,
|
|
0);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc,
|
|
0);
|
|
/* peg_clr 2 */
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8,
|
|
0);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc,
|
|
0);
|
|
/* peg_clr 3 */
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8,
|
|
0);
|
|
netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc,
|
|
0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int netxen_initialize_adapter_offload(struct netxen_adapter *adapter)
|
|
{
|
|
uint64_t addr;
|
|
uint32_t hi;
|
|
uint32_t lo;
|
|
|
|
adapter->dummy_dma.addr =
|
|
pci_alloc_consistent(adapter->ahw.pdev,
|
|
NETXEN_HOST_DUMMY_DMA_SIZE,
|
|
&adapter->dummy_dma.phys_addr);
|
|
if (adapter->dummy_dma.addr == NULL) {
|
|
printk("%s: ERROR: Could not allocate dummy DMA memory\n",
|
|
__FUNCTION__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
addr = (uint64_t) adapter->dummy_dma.phys_addr;
|
|
hi = (addr >> 32) & 0xffffffff;
|
|
lo = addr & 0xffffffff;
|
|
|
|
writel(hi, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI));
|
|
writel(lo, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO));
|
|
|
|
return 0;
|
|
}
|
|
|
|
void netxen_free_adapter_offload(struct netxen_adapter *adapter)
|
|
{
|
|
if (adapter->dummy_dma.addr) {
|
|
pci_free_consistent(adapter->ahw.pdev,
|
|
NETXEN_HOST_DUMMY_DMA_SIZE,
|
|
adapter->dummy_dma.addr,
|
|
adapter->dummy_dma.phys_addr);
|
|
adapter->dummy_dma.addr = NULL;
|
|
}
|
|
}
|
|
|
|
int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
|
|
{
|
|
u32 val = 0;
|
|
int retries = 30;
|
|
|
|
if (!pegtune_val) {
|
|
do {
|
|
val = readl(NETXEN_CRB_NORMALIZE
|
|
(adapter, CRB_CMDPEG_STATE));
|
|
pegtune_val = readl(NETXEN_CRB_NORMALIZE
|
|
(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE));
|
|
|
|
if (val == PHAN_INITIALIZE_COMPLETE ||
|
|
val == PHAN_INITIALIZE_ACK)
|
|
return 0;
|
|
|
|
msleep(1000);
|
|
} while (--retries);
|
|
if (!retries) {
|
|
printk(KERN_WARNING "netxen_phantom_init: init failed, "
|
|
"pegtune_val=%x\n", pegtune_val);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int netxen_nic_check_temp(struct netxen_adapter *adapter)
|
|
{
|
|
struct net_device *netdev = adapter->netdev;
|
|
uint32_t temp, temp_state, temp_val;
|
|
int rv = 0;
|
|
|
|
temp = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_TEMP_STATE));
|
|
|
|
temp_state = nx_get_temp_state(temp);
|
|
temp_val = nx_get_temp_val(temp);
|
|
|
|
if (temp_state == NX_TEMP_PANIC) {
|
|
printk(KERN_ALERT
|
|
"%s: Device temperature %d degrees C exceeds"
|
|
" maximum allowed. Hardware has been shut down.\n",
|
|
netxen_nic_driver_name, temp_val);
|
|
|
|
netif_carrier_off(netdev);
|
|
netif_stop_queue(netdev);
|
|
rv = 1;
|
|
} else if (temp_state == NX_TEMP_WARN) {
|
|
if (adapter->temp == NX_TEMP_NORMAL) {
|
|
printk(KERN_ALERT
|
|
"%s: Device temperature %d degrees C "
|
|
"exceeds operating range."
|
|
" Immediate action needed.\n",
|
|
netxen_nic_driver_name, temp_val);
|
|
}
|
|
} else {
|
|
if (adapter->temp == NX_TEMP_WARN) {
|
|
printk(KERN_INFO
|
|
"%s: Device temperature is now %d degrees C"
|
|
" in normal range.\n", netxen_nic_driver_name,
|
|
temp_val);
|
|
}
|
|
}
|
|
adapter->temp = temp_state;
|
|
return rv;
|
|
}
|
|
|
|
void netxen_watchdog_task(struct work_struct *work)
|
|
{
|
|
struct netxen_adapter *adapter =
|
|
container_of(work, struct netxen_adapter, watchdog_task);
|
|
|
|
if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter))
|
|
return;
|
|
|
|
if (adapter->handle_phy_intr)
|
|
adapter->handle_phy_intr(adapter);
|
|
|
|
mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
|
|
}
|
|
|
|
/*
|
|
* netxen_process_rcv() send the received packet to the protocol stack.
|
|
* and if the number of receives exceeds RX_BUFFERS_REFILL, then we
|
|
* invoke the routine to send more rx buffers to the Phantom...
|
|
*/
|
|
static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid,
|
|
struct status_desc *desc)
|
|
{
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
struct net_device *netdev = adapter->netdev;
|
|
u64 sts_data = le64_to_cpu(desc->status_desc_data);
|
|
int index = netxen_get_sts_refhandle(sts_data);
|
|
struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
|
|
struct netxen_rx_buffer *buffer;
|
|
struct sk_buff *skb;
|
|
u32 length = netxen_get_sts_totallength(sts_data);
|
|
u32 desc_ctx;
|
|
struct netxen_rcv_desc_ctx *rcv_desc;
|
|
int ret;
|
|
|
|
desc_ctx = netxen_get_sts_type(sts_data);
|
|
if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) {
|
|
printk("%s: %s Bad Rcv descriptor ring\n",
|
|
netxen_nic_driver_name, netdev->name);
|
|
return;
|
|
}
|
|
|
|
rcv_desc = &recv_ctx->rcv_desc[desc_ctx];
|
|
if (unlikely(index > rcv_desc->max_rx_desc_count)) {
|
|
DPRINTK(ERR, "Got a buffer index:%x Max is %x\n",
|
|
index, rcv_desc->max_rx_desc_count);
|
|
return;
|
|
}
|
|
buffer = &rcv_desc->rx_buf_arr[index];
|
|
if (desc_ctx == RCV_DESC_LRO_CTXID) {
|
|
buffer->lro_current_frags++;
|
|
if (netxen_get_sts_desc_lro_last_frag(desc)) {
|
|
buffer->lro_expected_frags =
|
|
netxen_get_sts_desc_lro_cnt(desc);
|
|
buffer->lro_length = length;
|
|
}
|
|
if (buffer->lro_current_frags != buffer->lro_expected_frags) {
|
|
if (buffer->lro_expected_frags != 0) {
|
|
printk("LRO: (refhandle:%x) recv frag. "
|
|
"wait for last. flags: %x expected:%d "
|
|
"have:%d\n", index,
|
|
netxen_get_sts_desc_lro_last_frag(desc),
|
|
buffer->lro_expected_frags,
|
|
buffer->lro_current_frags);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
pci_unmap_single(pdev, buffer->dma, rcv_desc->dma_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
skb = (struct sk_buff *)buffer->skb;
|
|
|
|
if (likely(adapter->rx_csum &&
|
|
netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) {
|
|
adapter->stats.csummed++;
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
} else
|
|
skb->ip_summed = CHECKSUM_NONE;
|
|
|
|
skb->dev = netdev;
|
|
if (desc_ctx == RCV_DESC_LRO_CTXID) {
|
|
/* True length was only available on the last pkt */
|
|
skb_put(skb, buffer->lro_length);
|
|
} else {
|
|
skb_put(skb, length);
|
|
}
|
|
|
|
skb->protocol = eth_type_trans(skb, netdev);
|
|
|
|
ret = netif_receive_skb(skb);
|
|
netdev->last_rx = jiffies;
|
|
|
|
rcv_desc->rcv_pending--;
|
|
|
|
/*
|
|
* We just consumed one buffer so post a buffer.
|
|
*/
|
|
buffer->skb = NULL;
|
|
buffer->state = NETXEN_BUFFER_FREE;
|
|
buffer->lro_current_frags = 0;
|
|
buffer->lro_expected_frags = 0;
|
|
|
|
adapter->stats.no_rcv++;
|
|
adapter->stats.rxbytes += length;
|
|
}
|
|
|
|
/* Process Receive status ring */
|
|
u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
|
|
{
|
|
struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
|
|
struct status_desc *desc_head = recv_ctx->rcv_status_desc_head;
|
|
struct status_desc *desc; /* used to read status desc here */
|
|
u32 consumer = recv_ctx->status_rx_consumer;
|
|
u32 producer = 0;
|
|
int count = 0, ring;
|
|
|
|
while (count < max) {
|
|
desc = &desc_head[consumer];
|
|
if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) {
|
|
DPRINTK(ERR, "desc %p ownedby %x\n", desc,
|
|
netxen_get_sts_owner(desc));
|
|
break;
|
|
}
|
|
netxen_process_rcv(adapter, ctxid, desc);
|
|
netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM);
|
|
consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1);
|
|
count++;
|
|
}
|
|
for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++)
|
|
netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
|
|
|
|
/* update the consumer index in phantom */
|
|
if (count) {
|
|
recv_ctx->status_rx_consumer = consumer;
|
|
recv_ctx->status_rx_producer = producer;
|
|
|
|
/* Window = 1 */
|
|
writel(consumer,
|
|
NETXEN_CRB_NORMALIZE(adapter,
|
|
recv_crb_registers[adapter->portnum].
|
|
crb_rcv_status_consumer));
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Process Command status ring */
|
|
int netxen_process_cmd_ring(struct netxen_adapter *adapter)
|
|
{
|
|
u32 last_consumer, consumer;
|
|
int count = 0, i;
|
|
struct netxen_cmd_buffer *buffer;
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
struct net_device *netdev = adapter->netdev;
|
|
struct netxen_skb_frag *frag;
|
|
int done = 0;
|
|
|
|
last_consumer = adapter->last_cmd_consumer;
|
|
consumer = le32_to_cpu(*(adapter->cmd_consumer));
|
|
|
|
while (last_consumer != consumer) {
|
|
buffer = &adapter->cmd_buf_arr[last_consumer];
|
|
if (buffer->skb) {
|
|
frag = &buffer->frag_array[0];
|
|
pci_unmap_single(pdev, frag->dma, frag->length,
|
|
PCI_DMA_TODEVICE);
|
|
frag->dma = 0ULL;
|
|
for (i = 1; i < buffer->frag_count; i++) {
|
|
frag++; /* Get the next frag */
|
|
pci_unmap_page(pdev, frag->dma, frag->length,
|
|
PCI_DMA_TODEVICE);
|
|
frag->dma = 0ULL;
|
|
}
|
|
|
|
adapter->stats.xmitfinished++;
|
|
dev_kfree_skb_any(buffer->skb);
|
|
buffer->skb = NULL;
|
|
}
|
|
|
|
last_consumer = get_next_index(last_consumer,
|
|
adapter->max_tx_desc_count);
|
|
if (++count >= MAX_STATUS_HANDLE)
|
|
break;
|
|
}
|
|
|
|
if (count) {
|
|
adapter->last_cmd_consumer = last_consumer;
|
|
smp_mb();
|
|
if (netif_queue_stopped(netdev) && netif_running(netdev)) {
|
|
netif_tx_lock(netdev);
|
|
netif_wake_queue(netdev);
|
|
smp_mb();
|
|
netif_tx_unlock(netdev);
|
|
}
|
|
}
|
|
/*
|
|
* If everything is freed up to consumer then check if the ring is full
|
|
* If the ring is full then check if more needs to be freed and
|
|
* schedule the call back again.
|
|
*
|
|
* This happens when there are 2 CPUs. One could be freeing and the
|
|
* other filling it. If the ring is full when we get out of here and
|
|
* the card has already interrupted the host then the host can miss the
|
|
* interrupt.
|
|
*
|
|
* There is still a possible race condition and the host could miss an
|
|
* interrupt. The card has to take care of this.
|
|
*/
|
|
consumer = le32_to_cpu(*(adapter->cmd_consumer));
|
|
done = (last_consumer == consumer);
|
|
|
|
return (done);
|
|
}
|
|
|
|
/*
|
|
* netxen_post_rx_buffers puts buffer in the Phantom memory
|
|
*/
|
|
void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid)
|
|
{
|
|
struct pci_dev *pdev = adapter->ahw.pdev;
|
|
struct sk_buff *skb;
|
|
struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
|
|
struct netxen_rcv_desc_ctx *rcv_desc = NULL;
|
|
uint producer;
|
|
struct rcv_desc *pdesc;
|
|
struct netxen_rx_buffer *buffer;
|
|
int count = 0;
|
|
int index = 0;
|
|
netxen_ctx_msg msg = 0;
|
|
dma_addr_t dma;
|
|
|
|
rcv_desc = &recv_ctx->rcv_desc[ringid];
|
|
|
|
producer = rcv_desc->producer;
|
|
index = rcv_desc->begin_alloc;
|
|
buffer = &rcv_desc->rx_buf_arr[index];
|
|
/* We can start writing rx descriptors into the phantom memory. */
|
|
while (buffer->state == NETXEN_BUFFER_FREE) {
|
|
skb = dev_alloc_skb(rcv_desc->skb_size);
|
|
if (unlikely(!skb)) {
|
|
/*
|
|
* TODO
|
|
* We need to schedule the posting of buffers to the pegs.
|
|
*/
|
|
rcv_desc->begin_alloc = index;
|
|
DPRINTK(ERR, "netxen_post_rx_buffers: "
|
|
" allocated only %d buffers\n", count);
|
|
break;
|
|
}
|
|
|
|
count++; /* now there should be no failure */
|
|
pdesc = &rcv_desc->desc_head[producer];
|
|
|
|
#if defined(XGB_DEBUG)
|
|
*(unsigned long *)(skb->head) = 0xc0debabe;
|
|
if (skb_is_nonlinear(skb)) {
|
|
printk("Allocated SKB @%p is nonlinear\n");
|
|
}
|
|
#endif
|
|
skb_reserve(skb, 2);
|
|
/* This will be setup when we receive the
|
|
* buffer after it has been filled FSL TBD TBD
|
|
* skb->dev = netdev;
|
|
*/
|
|
dma = pci_map_single(pdev, skb->data, rcv_desc->dma_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
pdesc->addr_buffer = cpu_to_le64(dma);
|
|
buffer->skb = skb;
|
|
buffer->state = NETXEN_BUFFER_BUSY;
|
|
buffer->dma = dma;
|
|
/* make a rcv descriptor */
|
|
pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
|
|
pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
|
|
DPRINTK(INFO, "done writing descripter\n");
|
|
producer =
|
|
get_next_index(producer, rcv_desc->max_rx_desc_count);
|
|
index = get_next_index(index, rcv_desc->max_rx_desc_count);
|
|
buffer = &rcv_desc->rx_buf_arr[index];
|
|
}
|
|
/* if we did allocate buffers, then write the count to Phantom */
|
|
if (count) {
|
|
rcv_desc->begin_alloc = index;
|
|
rcv_desc->rcv_pending += count;
|
|
rcv_desc->producer = producer;
|
|
/* Window = 1 */
|
|
writel((producer - 1) &
|
|
(rcv_desc->max_rx_desc_count - 1),
|
|
NETXEN_CRB_NORMALIZE(adapter,
|
|
recv_crb_registers[
|
|
adapter->portnum].
|
|
rcv_desc_crb[ringid].
|
|
crb_rcv_producer_offset));
|
|
/*
|
|
* Write a doorbell msg to tell phanmon of change in
|
|
* receive ring producer
|
|
*/
|
|
netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
|
|
netxen_set_msg_privid(msg);
|
|
netxen_set_msg_count(msg,
|
|
((producer -
|
|
1) & (rcv_desc->
|
|
max_rx_desc_count - 1)));
|
|
netxen_set_msg_ctxid(msg, adapter->portnum);
|
|
netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
|
|
writel(msg,
|
|
DB_NORMALIZE(adapter,
|
|
NETXEN_RCV_PRODUCER_OFFSET));
|
|
}
|
|
}
|
|
|
|
static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
|
|
uint32_t ctx, uint32_t ringid)
|
|
{
|
|
struct pci_dev *pdev = adapter->ahw.pdev;
|
|
struct sk_buff *skb;
|
|
struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
|
|
struct netxen_rcv_desc_ctx *rcv_desc = NULL;
|
|
u32 producer;
|
|
struct rcv_desc *pdesc;
|
|
struct netxen_rx_buffer *buffer;
|
|
int count = 0;
|
|
int index = 0;
|
|
|
|
rcv_desc = &recv_ctx->rcv_desc[ringid];
|
|
|
|
producer = rcv_desc->producer;
|
|
index = rcv_desc->begin_alloc;
|
|
buffer = &rcv_desc->rx_buf_arr[index];
|
|
/* We can start writing rx descriptors into the phantom memory. */
|
|
while (buffer->state == NETXEN_BUFFER_FREE) {
|
|
skb = dev_alloc_skb(rcv_desc->skb_size);
|
|
if (unlikely(!skb)) {
|
|
/*
|
|
* We need to schedule the posting of buffers to the pegs.
|
|
*/
|
|
rcv_desc->begin_alloc = index;
|
|
DPRINTK(ERR, "netxen_post_rx_buffers_nodb: "
|
|
" allocated only %d buffers\n", count);
|
|
break;
|
|
}
|
|
count++; /* now there should be no failure */
|
|
pdesc = &rcv_desc->desc_head[producer];
|
|
skb_reserve(skb, 2);
|
|
/*
|
|
* This will be setup when we receive the
|
|
* buffer after it has been filled
|
|
* skb->dev = netdev;
|
|
*/
|
|
buffer->skb = skb;
|
|
buffer->state = NETXEN_BUFFER_BUSY;
|
|
buffer->dma = pci_map_single(pdev, skb->data,
|
|
rcv_desc->dma_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
/* make a rcv descriptor */
|
|
pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
|
|
pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
|
|
pdesc->addr_buffer = cpu_to_le64(buffer->dma);
|
|
DPRINTK(INFO, "done writing descripter\n");
|
|
producer =
|
|
get_next_index(producer, rcv_desc->max_rx_desc_count);
|
|
index = get_next_index(index, rcv_desc->max_rx_desc_count);
|
|
buffer = &rcv_desc->rx_buf_arr[index];
|
|
}
|
|
|
|
/* if we did allocate buffers, then write the count to Phantom */
|
|
if (count) {
|
|
rcv_desc->begin_alloc = index;
|
|
rcv_desc->rcv_pending += count;
|
|
rcv_desc->producer = producer;
|
|
/* Window = 1 */
|
|
writel((producer - 1) &
|
|
(rcv_desc->max_rx_desc_count - 1),
|
|
NETXEN_CRB_NORMALIZE(adapter,
|
|
recv_crb_registers[
|
|
adapter->portnum].
|
|
rcv_desc_crb[ringid].
|
|
crb_rcv_producer_offset));
|
|
wmb();
|
|
}
|
|
}
|
|
|
|
void netxen_nic_clear_stats(struct netxen_adapter *adapter)
|
|
{
|
|
memset(&adapter->stats, 0, sizeof(adapter->stats));
|
|
return;
|
|
}
|
|
|