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linux/drivers/net/qlcnic/qlcnic_hw.c
Amit Kumar Salecha 8a15ad1fb1 qlcnic: release device resources during interface down 
Previously we were allocating device resources during probe and
release them during remove.
Now alloc during interface up and release in interface down.
This helps in device performance, as it doesn't need to keep
track of inactive resources.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-23 13:16:30 -07:00

1249 lines
32 KiB
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/*
* Copyright (C) 2009 - QLogic Corporation.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*
* The full GNU General Public License is included in this distribution
* in the file called "COPYING".
*
*/
#include "qlcnic.h"
#include <linux/slab.h>
#include <net/ip.h>
#define MASK(n) ((1ULL<<(n))-1)
#define OCM_WIN_P3P(addr) (addr & 0xffc0000)
#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
#define CRB_BLK(off) ((off >> 20) & 0x3f)
#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
#define CRB_WINDOW_2M (0x130060)
#define CRB_HI(off) ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
#define CRB_INDIRECT_2M (0x1e0000UL)
#ifndef readq
static inline u64 readq(void __iomem *addr)
{
return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
}
#endif
#ifndef writeq
static inline void writeq(u64 val, void __iomem *addr)
{
writel(((u32) (val)), (addr));
writel(((u32) (val >> 32)), (addr + 4));
}
#endif
static const struct crb_128M_2M_block_map
crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
{{{0, 0, 0, 0} } }, /* 0: PCI */
{{{1, 0x0100000, 0x0102000, 0x120000}, /* 1: PCIE */
{1, 0x0110000, 0x0120000, 0x130000},
{1, 0x0120000, 0x0122000, 0x124000},
{1, 0x0130000, 0x0132000, 0x126000},
{1, 0x0140000, 0x0142000, 0x128000},
{1, 0x0150000, 0x0152000, 0x12a000},
{1, 0x0160000, 0x0170000, 0x110000},
{1, 0x0170000, 0x0172000, 0x12e000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x01e0000, 0x01e0800, 0x122000},
{0, 0x0000000, 0x0000000, 0x000000} } },
{{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
{{{0, 0, 0, 0} } }, /* 3: */
{{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
{{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE */
{{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU */
{{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM */
{{{1, 0x0800000, 0x0802000, 0x170000}, /* 8: SQM0 */
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x08f0000, 0x08f2000, 0x172000} } },
{{{1, 0x0900000, 0x0902000, 0x174000}, /* 9: SQM1*/
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x09f0000, 0x09f2000, 0x176000} } },
{{{0, 0x0a00000, 0x0a02000, 0x178000}, /* 10: SQM2*/
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x0af0000, 0x0af2000, 0x17a000} } },
{{{0, 0x0b00000, 0x0b02000, 0x17c000}, /* 11: SQM3*/
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
{{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
{{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
{{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
{{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
{{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
{{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
{{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
{{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
{{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
{{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
{{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
{{{0, 0, 0, 0} } }, /* 23: */
{{{0, 0, 0, 0} } }, /* 24: */
{{{0, 0, 0, 0} } }, /* 25: */
{{{0, 0, 0, 0} } }, /* 26: */
{{{0, 0, 0, 0} } }, /* 27: */
{{{0, 0, 0, 0} } }, /* 28: */
{{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
{{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
{{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
{{{0} } }, /* 32: PCI */
{{{1, 0x2100000, 0x2102000, 0x120000}, /* 33: PCIE */
{1, 0x2110000, 0x2120000, 0x130000},
{1, 0x2120000, 0x2122000, 0x124000},
{1, 0x2130000, 0x2132000, 0x126000},
{1, 0x2140000, 0x2142000, 0x128000},
{1, 0x2150000, 0x2152000, 0x12a000},
{1, 0x2160000, 0x2170000, 0x110000},
{1, 0x2170000, 0x2172000, 0x12e000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000} } },
{{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
{{{0} } }, /* 35: */
{{{0} } }, /* 36: */
{{{0} } }, /* 37: */
{{{0} } }, /* 38: */
{{{0} } }, /* 39: */
{{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
{{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
{{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
{{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
{{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
{{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
{{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
{{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
{{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
{{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
{{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
{{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
{{{0} } }, /* 52: */
{{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
{{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
{{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
{{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
{{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
{{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
{{{0} } }, /* 59: I2C0 */
{{{0} } }, /* 60: I2C1 */
{{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
{{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
{{{1, 0x3f00000, 0x3f01000, 0x168000} } } /* 63: P2NR0 */
};
/*
* top 12 bits of crb internal address (hub, agent)
*/
static const unsigned crb_hub_agt[64] = {
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
QLCNIC_HW_CRB_HUB_AGT_ADR_MN,
QLCNIC_HW_CRB_HUB_AGT_ADR_MS,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_SRE,
QLCNIC_HW_CRB_HUB_AGT_ADR_NIU,
QLCNIC_HW_CRB_HUB_AGT_ADR_QMN,
QLCNIC_HW_CRB_HUB_AGT_ADR_SQN0,
QLCNIC_HW_CRB_HUB_AGT_ADR_SQN1,
QLCNIC_HW_CRB_HUB_AGT_ADR_SQN2,
QLCNIC_HW_CRB_HUB_AGT_ADR_SQN3,
QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGN4,
QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGN0,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGN1,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGN2,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGN3,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGND,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGNI,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGS0,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGS1,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGS2,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGS3,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGSI,
QLCNIC_HW_CRB_HUB_AGT_ADR_SN,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_EG,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
QLCNIC_HW_CRB_HUB_AGT_ADR_CAM,
0,
0,
0,
0,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX1,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX2,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX3,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX4,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX5,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX6,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX7,
QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX0,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX8,
QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX9,
QLCNIC_HW_CRB_HUB_AGT_ADR_OCM0,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_SMB,
QLCNIC_HW_CRB_HUB_AGT_ADR_I2C0,
QLCNIC_HW_CRB_HUB_AGT_ADR_I2C1,
0,
QLCNIC_HW_CRB_HUB_AGT_ADR_PGNC,
0,
};
/* PCI Windowing for DDR regions. */
#define QLCNIC_PCIE_SEM_TIMEOUT 10000
int
qlcnic_pcie_sem_lock(struct qlcnic_adapter *adapter, int sem, u32 id_reg)
{
int done = 0, timeout = 0;
while (!done) {
done = QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_LOCK(sem)));
if (done == 1)
break;
if (++timeout >= QLCNIC_PCIE_SEM_TIMEOUT) {
dev_err(&adapter->pdev->dev,
"Failed to acquire sem=%d lock;reg_id=%d\n",
sem, id_reg);
return -EIO;
}
msleep(1);
}
if (id_reg)
QLCWR32(adapter, id_reg, adapter->portnum);
return 0;
}
void
qlcnic_pcie_sem_unlock(struct qlcnic_adapter *adapter, int sem)
{
QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
}
static int
qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
{
u32 i, producer, consumer;
struct qlcnic_cmd_buffer *pbuf;
struct cmd_desc_type0 *cmd_desc;
struct qlcnic_host_tx_ring *tx_ring;
i = 0;
if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
return -EIO;
tx_ring = adapter->tx_ring;
__netif_tx_lock_bh(tx_ring->txq);
producer = tx_ring->producer;
consumer = tx_ring->sw_consumer;
if (nr_desc >= qlcnic_tx_avail(tx_ring)) {
netif_tx_stop_queue(tx_ring->txq);
smp_mb();
if (qlcnic_tx_avail(tx_ring) > nr_desc) {
if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
netif_tx_wake_queue(tx_ring->txq);
} else {
adapter->stats.xmit_off++;
__netif_tx_unlock_bh(tx_ring->txq);
return -EBUSY;
}
}
do {
cmd_desc = &cmd_desc_arr[i];
pbuf = &tx_ring->cmd_buf_arr[producer];
pbuf->skb = NULL;
pbuf->frag_count = 0;
memcpy(&tx_ring->desc_head[producer],
&cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
producer = get_next_index(producer, tx_ring->num_desc);
i++;
} while (i != nr_desc);
tx_ring->producer = producer;
qlcnic_update_cmd_producer(adapter, tx_ring);
__netif_tx_unlock_bh(tx_ring->txq);
return 0;
}
static int
qlcnic_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
unsigned op)
{
struct qlcnic_nic_req req;
struct qlcnic_mac_req *mac_req;
u64 word;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
word = QLCNIC_MAC_EVENT | ((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
mac_req = (struct qlcnic_mac_req *)&req.words[0];
mac_req->op = op;
memcpy(mac_req->mac_addr, addr, 6);
return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
}
static int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, u8 *addr)
{
struct list_head *head;
struct qlcnic_mac_list_s *cur;
/* look up if already exists */
list_for_each(head, &adapter->mac_list) {
cur = list_entry(head, struct qlcnic_mac_list_s, list);
if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0)
return 0;
}
cur = kzalloc(sizeof(struct qlcnic_mac_list_s), GFP_ATOMIC);
if (cur == NULL) {
dev_err(&adapter->netdev->dev,
"failed to add mac address filter\n");
return -ENOMEM;
}
memcpy(cur->mac_addr, addr, ETH_ALEN);
if (qlcnic_sre_macaddr_change(adapter,
cur->mac_addr, QLCNIC_MAC_ADD)) {
kfree(cur);
return -EIO;
}
list_add_tail(&cur->list, &adapter->mac_list);
return 0;
}
void qlcnic_set_multi(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct netdev_hw_addr *ha;
u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
u32 mode = VPORT_MISS_MODE_DROP;
if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
return;
qlcnic_nic_add_mac(adapter, adapter->mac_addr);
qlcnic_nic_add_mac(adapter, bcast_addr);
if (netdev->flags & IFF_PROMISC) {
mode = VPORT_MISS_MODE_ACCEPT_ALL;
goto send_fw_cmd;
}
if ((netdev->flags & IFF_ALLMULTI) ||
(netdev_mc_count(netdev) > adapter->max_mc_count)) {
mode = VPORT_MISS_MODE_ACCEPT_MULTI;
goto send_fw_cmd;
}
if (!netdev_mc_empty(netdev)) {
netdev_for_each_mc_addr(ha, netdev) {
qlcnic_nic_add_mac(adapter, ha->addr);
}
}
send_fw_cmd:
qlcnic_nic_set_promisc(adapter, mode);
}
int qlcnic_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
{
struct qlcnic_nic_req req;
u64 word;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_PROXY_SET_VPORT_MISS_MODE |
((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64(mode);
return qlcnic_send_cmd_descs(adapter,
(struct cmd_desc_type0 *)&req, 1);
}
void qlcnic_free_mac_list(struct qlcnic_adapter *adapter)
{
struct qlcnic_mac_list_s *cur;
struct list_head *head = &adapter->mac_list;
while (!list_empty(head)) {
cur = list_entry(head->next, struct qlcnic_mac_list_s, list);
qlcnic_sre_macaddr_change(adapter,
cur->mac_addr, QLCNIC_MAC_DEL);
list_del(&cur->list);
kfree(cur);
}
}
#define QLCNIC_CONFIG_INTR_COALESCE 3
/*
* Send the interrupt coalescing parameter set by ethtool to the card.
*/
int qlcnic_config_intr_coalesce(struct qlcnic_adapter *adapter)
{
struct qlcnic_nic_req req;
u64 word[6];
int rv, i;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word[0] = QLCNIC_CONFIG_INTR_COALESCE | ((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word[0]);
memcpy(&word[0], &adapter->coal, sizeof(adapter->coal));
for (i = 0; i < 6; i++)
req.words[i] = cpu_to_le64(word[i]);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->netdev->dev,
"Could not send interrupt coalescing parameters\n");
return rv;
}
int qlcnic_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
{
struct qlcnic_nic_req req;
u64 word;
int rv;
if ((adapter->flags & QLCNIC_LRO_ENABLED) == enable)
return 0;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64(enable);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->netdev->dev,
"Could not send configure hw lro request\n");
adapter->flags ^= QLCNIC_LRO_ENABLED;
return rv;
}
int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
{
struct qlcnic_nic_req req;
u64 word;
int rv;
if (!!(adapter->flags & QLCNIC_BRIDGE_ENABLED) == enable)
return 0;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_CONFIG_BRIDGING |
((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64(enable);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->netdev->dev,
"Could not send configure bridge mode request\n");
adapter->flags ^= QLCNIC_BRIDGE_ENABLED;
return rv;
}
#define RSS_HASHTYPE_IP_TCP 0x3
int qlcnic_config_rss(struct qlcnic_adapter *adapter, int enable)
{
struct qlcnic_nic_req req;
u64 word;
int i, rv;
const u64 key[] = { 0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
0x255b0ec26d5a56daULL };
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
/*
* RSS request:
* bits 3-0: hash_method
* 5-4: hash_type_ipv4
* 7-6: hash_type_ipv6
* 8: enable
* 9: use indirection table
* 47-10: reserved
* 63-48: indirection table mask
*/
word = ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
((u64)(enable & 0x1) << 8) |
((0x7ULL) << 48);
req.words[0] = cpu_to_le64(word);
for (i = 0; i < 5; i++)
req.words[i+1] = cpu_to_le64(key[i]);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->netdev->dev, "could not configure RSS\n");
return rv;
}
int qlcnic_config_ipaddr(struct qlcnic_adapter *adapter, u32 ip, int cmd)
{
struct qlcnic_nic_req req;
u64 word;
int rv;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64(cmd);
req.words[1] = cpu_to_le64(ip);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->netdev->dev,
"could not notify %s IP 0x%x reuqest\n",
(cmd == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
return rv;
}
int qlcnic_linkevent_request(struct qlcnic_adapter *adapter, int enable)
{
struct qlcnic_nic_req req;
u64 word;
int rv;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64(enable | (enable << 8));
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->netdev->dev,
"could not configure link notification\n");
return rv;
}
int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter)
{
struct qlcnic_nic_req req;
u64 word;
int rv;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_LRO_REQUEST |
((u64)adapter->portnum << 16) |
((u64)QLCNIC_LRO_REQUEST_CLEANUP << 56) ;
req.req_hdr = cpu_to_le64(word);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->netdev->dev,
"could not cleanup lro flows\n");
return rv;
}
/*
* qlcnic_change_mtu - Change the Maximum Transfer Unit
* @returns 0 on success, negative on failure
*/
int qlcnic_change_mtu(struct net_device *netdev, int mtu)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int rc = 0;
if (mtu > P3_MAX_MTU) {
dev_err(&adapter->netdev->dev, "mtu > %d bytes unsupported\n",
P3_MAX_MTU);
return -EINVAL;
}
rc = qlcnic_fw_cmd_set_mtu(adapter, mtu);
if (!rc)
netdev->mtu = mtu;
return rc;
}
int qlcnic_get_mac_addr(struct qlcnic_adapter *adapter, u8 *mac)
{
u32 crbaddr;
int pci_func = adapter->ahw.pci_func;
crbaddr = CRB_MAC_BLOCK_START +
(4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
qlcnic_fetch_mac(adapter, crbaddr, crbaddr+4, pci_func & 1, mac);
return 0;
}
/*
* Changes the CRB window to the specified window.
*/
/* Returns < 0 if off is not valid,
* 1 if window access is needed. 'off' is set to offset from
* CRB space in 128M pci map
* 0 if no window access is needed. 'off' is set to 2M addr
* In: 'off' is offset from base in 128M pci map
*/
static int
qlcnic_pci_get_crb_addr_2M(struct qlcnic_adapter *adapter,
ulong off, void __iomem **addr)
{
const struct crb_128M_2M_sub_block_map *m;
if ((off >= QLCNIC_CRB_MAX) || (off < QLCNIC_PCI_CRBSPACE))
return -EINVAL;
off -= QLCNIC_PCI_CRBSPACE;
/*
* Try direct map
*/
m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
*addr = adapter->ahw.pci_base0 + m->start_2M +
(off - m->start_128M);
return 0;
}
/*
* Not in direct map, use crb window
*/
*addr = adapter->ahw.pci_base0 + CRB_INDIRECT_2M + (off & MASK(16));
return 1;
}
/*
* In: 'off' is offset from CRB space in 128M pci map
* Out: 'off' is 2M pci map addr
* side effect: lock crb window
*/
static int
qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
{
u32 window;
void __iomem *addr = adapter->ahw.pci_base0 + CRB_WINDOW_2M;
off -= QLCNIC_PCI_CRBSPACE;
window = CRB_HI(off);
if (window == 0) {
dev_err(&adapter->pdev->dev, "Invalid offset 0x%lx\n", off);
return -EIO;
}
writel(window, addr);
if (readl(addr) != window) {
if (printk_ratelimit())
dev_warn(&adapter->pdev->dev,
"failed to set CRB window to %d off 0x%lx\n",
window, off);
return -EIO;
}
return 0;
}
int
qlcnic_hw_write_wx_2M(struct qlcnic_adapter *adapter, ulong off, u32 data)
{
unsigned long flags;
int rv;
void __iomem *addr = NULL;
rv = qlcnic_pci_get_crb_addr_2M(adapter, off, &addr);
if (rv == 0) {
writel(data, addr);
return 0;
}
if (rv > 0) {
/* indirect access */
write_lock_irqsave(&adapter->ahw.crb_lock, flags);
crb_win_lock(adapter);
rv = qlcnic_pci_set_crbwindow_2M(adapter, off);
if (!rv)
writel(data, addr);
crb_win_unlock(adapter);
write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
return rv;
}
dev_err(&adapter->pdev->dev,
"%s: invalid offset: 0x%016lx\n", __func__, off);
dump_stack();
return -EIO;
}
u32
qlcnic_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off)
{
unsigned long flags;
int rv;
u32 data = -1;
void __iomem *addr = NULL;
rv = qlcnic_pci_get_crb_addr_2M(adapter, off, &addr);
if (rv == 0)
return readl(addr);
if (rv > 0) {
/* indirect access */
write_lock_irqsave(&adapter->ahw.crb_lock, flags);
crb_win_lock(adapter);
if (!qlcnic_pci_set_crbwindow_2M(adapter, off))
data = readl(addr);
crb_win_unlock(adapter);
write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
return data;
}
dev_err(&adapter->pdev->dev,
"%s: invalid offset: 0x%016lx\n", __func__, off);
dump_stack();
return -1;
}
void __iomem *
qlcnic_get_ioaddr(struct qlcnic_adapter *adapter, u32 offset)
{
void __iomem *addr = NULL;
WARN_ON(qlcnic_pci_get_crb_addr_2M(adapter, offset, &addr));
return addr;
}
static int
qlcnic_pci_set_window_2M(struct qlcnic_adapter *adapter,
u64 addr, u32 *start)
{
u32 window;
window = OCM_WIN_P3P(addr);
writel(window, adapter->ahw.ocm_win_crb);
/* read back to flush */
readl(adapter->ahw.ocm_win_crb);
*start = QLCNIC_PCI_OCM0_2M + GET_MEM_OFFS_2M(addr);
return 0;
}
static int
qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter, u64 off,
u64 *data, int op)
{
void __iomem *addr;
int ret;
u32 start;
mutex_lock(&adapter->ahw.mem_lock);
ret = qlcnic_pci_set_window_2M(adapter, off, &start);
if (ret != 0)
goto unlock;
addr = adapter->ahw.pci_base0 + start;
if (op == 0) /* read */
*data = readq(addr);
else /* write */
writeq(*data, addr);
unlock:
mutex_unlock(&adapter->ahw.mem_lock);
return ret;
}
void
qlcnic_pci_camqm_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
{
void __iomem *addr = adapter->ahw.pci_base0 +
QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
mutex_lock(&adapter->ahw.mem_lock);
*data = readq(addr);
mutex_unlock(&adapter->ahw.mem_lock);
}
void
qlcnic_pci_camqm_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
{
void __iomem *addr = adapter->ahw.pci_base0 +
QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
mutex_lock(&adapter->ahw.mem_lock);
writeq(data, addr);
mutex_unlock(&adapter->ahw.mem_lock);
}
#define MAX_CTL_CHECK 1000
int
qlcnic_pci_mem_write_2M(struct qlcnic_adapter *adapter,
u64 off, u64 data)
{
int i, j, ret;
u32 temp, off8;
void __iomem *mem_crb;
/* Only 64-bit aligned access */
if (off & 7)
return -EIO;
/* P3 onward, test agent base for MIU and SIU is same */
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
QLCNIC_ADDR_QDR_NET_MAX)) {
mem_crb = qlcnic_get_ioaddr(adapter,
QLCNIC_CRB_QDR_NET+MIU_TEST_AGT_BASE);
goto correct;
}
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET, QLCNIC_ADDR_DDR_NET_MAX)) {
mem_crb = qlcnic_get_ioaddr(adapter,
QLCNIC_CRB_DDR_NET+MIU_TEST_AGT_BASE);
goto correct;
}
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
return qlcnic_pci_mem_access_direct(adapter, off, &data, 1);
return -EIO;
correct:
off8 = off & ~0xf;
mutex_lock(&adapter->ahw.mem_lock);
writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
i = 0;
writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
writel((TA_CTL_START | TA_CTL_ENABLE),
(mem_crb + TEST_AGT_CTRL));
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = readl(mem_crb + TEST_AGT_CTRL);
if ((temp & TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
ret = -EIO;
goto done;
}
i = (off & 0xf) ? 0 : 2;
writel(readl(mem_crb + MIU_TEST_AGT_RDDATA(i)),
mem_crb + MIU_TEST_AGT_WRDATA(i));
writel(readl(mem_crb + MIU_TEST_AGT_RDDATA(i+1)),
mem_crb + MIU_TEST_AGT_WRDATA(i+1));
i = (off & 0xf) ? 2 : 0;
writel(data & 0xffffffff,
mem_crb + MIU_TEST_AGT_WRDATA(i));
writel((data >> 32) & 0xffffffff,
mem_crb + MIU_TEST_AGT_WRDATA(i+1));
writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
(mem_crb + TEST_AGT_CTRL));
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = readl(mem_crb + TEST_AGT_CTRL);
if ((temp & TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
if (printk_ratelimit())
dev_err(&adapter->pdev->dev,
"failed to write through agent\n");
ret = -EIO;
} else
ret = 0;
done:
mutex_unlock(&adapter->ahw.mem_lock);
return ret;
}
int
qlcnic_pci_mem_read_2M(struct qlcnic_adapter *adapter,
u64 off, u64 *data)
{
int j, ret;
u32 temp, off8;
u64 val;
void __iomem *mem_crb;
/* Only 64-bit aligned access */
if (off & 7)
return -EIO;
/* P3 onward, test agent base for MIU and SIU is same */
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
QLCNIC_ADDR_QDR_NET_MAX)) {
mem_crb = qlcnic_get_ioaddr(adapter,
QLCNIC_CRB_QDR_NET+MIU_TEST_AGT_BASE);
goto correct;
}
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET, QLCNIC_ADDR_DDR_NET_MAX)) {
mem_crb = qlcnic_get_ioaddr(adapter,
QLCNIC_CRB_DDR_NET+MIU_TEST_AGT_BASE);
goto correct;
}
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX)) {
return qlcnic_pci_mem_access_direct(adapter,
off, data, 0);
}
return -EIO;
correct:
off8 = off & ~0xf;
mutex_lock(&adapter->ahw.mem_lock);
writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
writel((TA_CTL_START | TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = readl(mem_crb + TEST_AGT_CTRL);
if ((temp & TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
if (printk_ratelimit())
dev_err(&adapter->pdev->dev,
"failed to read through agent\n");
ret = -EIO;
} else {
off8 = MIU_TEST_AGT_RDDATA_LO;
if (off & 0xf)
off8 = MIU_TEST_AGT_RDDATA_UPPER_LO;
temp = readl(mem_crb + off8 + 4);
val = (u64)temp << 32;
val |= readl(mem_crb + off8);
*data = val;
ret = 0;
}
mutex_unlock(&adapter->ahw.mem_lock);
return ret;
}
int qlcnic_get_board_info(struct qlcnic_adapter *adapter)
{
int offset, board_type, magic;
struct pci_dev *pdev = adapter->pdev;
offset = QLCNIC_FW_MAGIC_OFFSET;
if (qlcnic_rom_fast_read(adapter, offset, &magic))
return -EIO;
if (magic != QLCNIC_BDINFO_MAGIC) {
dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
magic);
return -EIO;
}
offset = QLCNIC_BRDTYPE_OFFSET;
if (qlcnic_rom_fast_read(adapter, offset, &board_type))
return -EIO;
adapter->ahw.board_type = board_type;
if (board_type == QLCNIC_BRDTYPE_P3_4_GB_MM) {
u32 gpio = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_PAD_GPIO_I);
if ((gpio & 0x8000) == 0)
board_type = QLCNIC_BRDTYPE_P3_10G_TP;
}
switch (board_type) {
case QLCNIC_BRDTYPE_P3_HMEZ:
case QLCNIC_BRDTYPE_P3_XG_LOM:
case QLCNIC_BRDTYPE_P3_10G_CX4:
case QLCNIC_BRDTYPE_P3_10G_CX4_LP:
case QLCNIC_BRDTYPE_P3_IMEZ:
case QLCNIC_BRDTYPE_P3_10G_SFP_PLUS:
case QLCNIC_BRDTYPE_P3_10G_SFP_CT:
case QLCNIC_BRDTYPE_P3_10G_SFP_QT:
case QLCNIC_BRDTYPE_P3_10G_XFP:
case QLCNIC_BRDTYPE_P3_10000_BASE_T:
adapter->ahw.port_type = QLCNIC_XGBE;
break;
case QLCNIC_BRDTYPE_P3_REF_QG:
case QLCNIC_BRDTYPE_P3_4_GB:
case QLCNIC_BRDTYPE_P3_4_GB_MM:
adapter->ahw.port_type = QLCNIC_GBE;
break;
case QLCNIC_BRDTYPE_P3_10G_TP:
adapter->ahw.port_type = (adapter->portnum < 2) ?
QLCNIC_XGBE : QLCNIC_GBE;
break;
default:
dev_err(&pdev->dev, "unknown board type %x\n", board_type);
adapter->ahw.port_type = QLCNIC_XGBE;
break;
}
return 0;
}
int
qlcnic_wol_supported(struct qlcnic_adapter *adapter)
{
u32 wol_cfg;
wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG_NV);
if (wol_cfg & (1UL << adapter->portnum)) {
wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG);
if (wol_cfg & (1 << adapter->portnum))
return 1;
}
return 0;
}
int qlcnic_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
{
struct qlcnic_nic_req req;
int rv;
u64 word;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_CONFIG_LED | ((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64((u64)rate << 32);
req.words[1] = cpu_to_le64(state);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv)
dev_err(&adapter->pdev->dev, "LED configuration failed.\n");
return rv;
}
static int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u32 flag)
{
struct qlcnic_nic_req req;
int rv;
u64 word;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64(flag);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv)
dev_err(&adapter->pdev->dev,
"%sting loopback mode failed.\n",
flag ? "Set" : "Reset");
return rv;
}
int qlcnic_set_ilb_mode(struct qlcnic_adapter *adapter)
{
if (qlcnic_set_fw_loopback(adapter, 1))
return -EIO;
if (qlcnic_nic_set_promisc(adapter,
VPORT_MISS_MODE_ACCEPT_ALL)) {
qlcnic_set_fw_loopback(adapter, 0);
return -EIO;
}
msleep(1000);
return 0;
}
void qlcnic_clear_ilb_mode(struct qlcnic_adapter *adapter)
{
int mode = VPORT_MISS_MODE_DROP;
struct net_device *netdev = adapter->netdev;
qlcnic_set_fw_loopback(adapter, 0);
if (netdev->flags & IFF_PROMISC)
mode = VPORT_MISS_MODE_ACCEPT_ALL;
else if (netdev->flags & IFF_ALLMULTI)
mode = VPORT_MISS_MODE_ACCEPT_MULTI;
qlcnic_nic_set_promisc(adapter, mode);
}
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