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linuxdebug/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic qlcnic NIC Driver
* Copyright (c) 2009-2013 QLogic Corporation
*/
#include <linux/slab.h>
#include <net/ip.h>
#include <linux/bitops.h>
#include "qlcnic.h"
#include "qlcnic_hdr.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)
struct qlcnic_ms_reg_ctrl {
u32 ocm_window;
u32 control;
u32 hi;
u32 low;
u32 rd[4];
u32 wd[4];
u64 off;
};
#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 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
static void qlcnic_read_window_reg(u32 addr, void __iomem *bar0, u32 *data)
{
u32 dest;
void __iomem *val;
dest = addr & 0xFFFF0000;
val = bar0 + QLCNIC_FW_DUMP_REG1;
writel(dest, val);
readl(val);
val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
*data = readl(val);
}
static void qlcnic_write_window_reg(u32 addr, void __iomem *bar0, u32 data)
{
u32 dest;
void __iomem *val;
dest = addr & 0xFFFF0000;
val = bar0 + QLCNIC_FW_DUMP_REG1;
writel(dest, val);
readl(val);
val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
writel(data, val);
readl(val);
}
int
qlcnic_pcie_sem_lock(struct qlcnic_adapter *adapter, int sem, u32 id_reg)
{
int timeout = 0, err = 0, done = 0;
while (!done) {
done = QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_LOCK(sem)),
&err);
if (done == 1)
break;
if (++timeout >= QLCNIC_PCIE_SEM_TIMEOUT) {
if (id_reg) {
done = QLCRD32(adapter, id_reg, &err);
if (done != -1)
dev_err(&adapter->pdev->dev,
"Failed to acquire sem=%d lock held by=%d\n",
sem, done);
else
dev_err(&adapter->pdev->dev,
"Failed to acquire sem=%d lock",
sem);
} else {
dev_err(&adapter->pdev->dev,
"Failed to acquire sem=%d lock", sem);
}
return -EIO;
}
udelay(1200);
}
if (id_reg)
QLCWR32(adapter, id_reg, adapter->portnum);
return 0;
}
void
qlcnic_pcie_sem_unlock(struct qlcnic_adapter *adapter, int sem)
{
int err = 0;
QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_UNLOCK(sem)), &err);
}
int qlcnic_ind_rd(struct qlcnic_adapter *adapter, u32 addr)
{
int err = 0;
u32 data;
if (qlcnic_82xx_check(adapter))
qlcnic_read_window_reg(addr, adapter->ahw->pci_base0, &data);
else {
data = QLCRD32(adapter, addr, &err);
if (err == -EIO)
return err;
}
return data;
}
int qlcnic_ind_wr(struct qlcnic_adapter *adapter, u32 addr, u32 data)
{
int ret = 0;
if (qlcnic_82xx_check(adapter))
qlcnic_write_window_reg(addr, adapter->ahw->pci_base0, data);
else
ret = qlcnic_83xx_wrt_reg_indirect(adapter, addr, data);
return ret;
}
static int
qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
{
u32 i, producer;
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[0];
__netif_tx_lock_bh(tx_ring->txq);
producer = tx_ring->producer;
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, 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(tx_ring);
__netif_tx_unlock_bh(tx_ring->txq);
return 0;
}
int qlcnic_82xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
u16 vlan_id, u8 op)
{
struct qlcnic_nic_req req;
struct qlcnic_mac_req *mac_req;
struct qlcnic_vlan_req *vlan_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, ETH_ALEN);
vlan_req = (struct qlcnic_vlan_req *)&req.words[1];
vlan_req->vlan_id = cpu_to_le16(vlan_id);
return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
}
int qlcnic_nic_del_mac(struct qlcnic_adapter *adapter, const u8 *addr)
{
struct qlcnic_mac_vlan_list *cur;
int err = -EINVAL;
/* Delete MAC from the existing list */
list_for_each_entry(cur, &adapter->mac_list, list) {
if (ether_addr_equal(addr, cur->mac_addr)) {
err = qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
0, QLCNIC_MAC_DEL);
if (err)
return err;
list_del(&cur->list);
kfree(cur);
return err;
}
}
return err;
}
int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr, u16 vlan,
enum qlcnic_mac_type mac_type)
{
struct qlcnic_mac_vlan_list *cur;
/* look up if already exists */
list_for_each_entry(cur, &adapter->mac_list, list) {
if (ether_addr_equal(addr, cur->mac_addr) &&
cur->vlan_id == vlan)
return 0;
}
cur = kzalloc(sizeof(*cur), GFP_ATOMIC);
if (cur == NULL)
return -ENOMEM;
memcpy(cur->mac_addr, addr, ETH_ALEN);
if (qlcnic_sre_macaddr_change(adapter,
cur->mac_addr, vlan, QLCNIC_MAC_ADD)) {
kfree(cur);
return -EIO;
}
cur->vlan_id = vlan;
cur->mac_type = mac_type;
list_add_tail(&cur->list, &adapter->mac_list);
return 0;
}
void qlcnic_flush_mcast_mac(struct qlcnic_adapter *adapter)
{
struct qlcnic_mac_vlan_list *cur;
struct list_head *head, *tmp;
list_for_each_safe(head, tmp, &adapter->mac_list) {
cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
if (cur->mac_type != QLCNIC_MULTICAST_MAC)
continue;
qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
cur->vlan_id, QLCNIC_MAC_DEL);
list_del(&cur->list);
kfree(cur);
}
}
static void __qlcnic_set_multi(struct net_device *netdev, u16 vlan)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_hardware_context *ahw = adapter->ahw;
struct netdev_hw_addr *ha;
static const 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, vlan,
QLCNIC_UNICAST_MAC);
qlcnic_nic_add_mac(adapter, bcast_addr, vlan, QLCNIC_BROADCAST_MAC);
if (netdev->flags & IFF_PROMISC) {
if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
mode = VPORT_MISS_MODE_ACCEPT_ALL;
} else if ((netdev->flags & IFF_ALLMULTI) ||
(netdev_mc_count(netdev) > ahw->max_mc_count)) {
mode = VPORT_MISS_MODE_ACCEPT_MULTI;
} else if (!netdev_mc_empty(netdev)) {
qlcnic_flush_mcast_mac(adapter);
netdev_for_each_mc_addr(ha, netdev)
qlcnic_nic_add_mac(adapter, ha->addr, vlan,
QLCNIC_MULTICAST_MAC);
}
/* configure unicast MAC address, if there is not sufficient space
* to store all the unicast addresses then enable promiscuous mode
*/
if (netdev_uc_count(netdev) > ahw->max_uc_count) {
mode = VPORT_MISS_MODE_ACCEPT_ALL;
} else if (!netdev_uc_empty(netdev)) {
netdev_for_each_uc_addr(ha, netdev)
qlcnic_nic_add_mac(adapter, ha->addr, vlan,
QLCNIC_UNICAST_MAC);
}
if (mode == VPORT_MISS_MODE_ACCEPT_ALL &&
!adapter->fdb_mac_learn) {
qlcnic_alloc_lb_filters_mem(adapter);
adapter->drv_mac_learn = 1;
if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
adapter->rx_mac_learn = true;
} else {
adapter->drv_mac_learn = 0;
adapter->rx_mac_learn = false;
}
qlcnic_nic_set_promisc(adapter, mode);
}
void qlcnic_set_multi(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
return;
if (qlcnic_sriov_vf_check(adapter))
qlcnic_sriov_vf_set_multi(netdev);
else
__qlcnic_set_multi(netdev, 0);
}
int qlcnic_82xx_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_SET_MAC_RECEIVE_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_82xx_free_mac_list(struct qlcnic_adapter *adapter)
{
struct list_head *head = &adapter->mac_list;
struct qlcnic_mac_vlan_list *cur;
while (!list_empty(head)) {
cur = list_entry(head->next, struct qlcnic_mac_vlan_list, list);
qlcnic_sre_macaddr_change(adapter,
cur->mac_addr, 0, QLCNIC_MAC_DEL);
list_del(&cur->list);
kfree(cur);
}
}
void qlcnic_prune_lb_filters(struct qlcnic_adapter *adapter)
{
struct qlcnic_filter *tmp_fil;
struct hlist_node *n;
struct hlist_head *head;
int i;
unsigned long expires;
u8 cmd;
for (i = 0; i < adapter->fhash.fbucket_size; i++) {
head = &(adapter->fhash.fhead[i]);
hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
cmd = tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
QLCNIC_MAC_DEL;
expires = tmp_fil->ftime + QLCNIC_FILTER_AGE * HZ;
if (time_before(expires, jiffies)) {
qlcnic_sre_macaddr_change(adapter,
tmp_fil->faddr,
tmp_fil->vlan_id,
cmd);
spin_lock_bh(&adapter->mac_learn_lock);
adapter->fhash.fnum--;
hlist_del(&tmp_fil->fnode);
spin_unlock_bh(&adapter->mac_learn_lock);
kfree(tmp_fil);
}
}
}
for (i = 0; i < adapter->rx_fhash.fbucket_size; i++) {
head = &(adapter->rx_fhash.fhead[i]);
hlist_for_each_entry_safe(tmp_fil, n, head, fnode)
{
expires = tmp_fil->ftime + QLCNIC_FILTER_AGE * HZ;
if (time_before(expires, jiffies)) {
spin_lock_bh(&adapter->rx_mac_learn_lock);
adapter->rx_fhash.fnum--;
hlist_del(&tmp_fil->fnode);
spin_unlock_bh(&adapter->rx_mac_learn_lock);
kfree(tmp_fil);
}
}
}
}
void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter)
{
struct qlcnic_filter *tmp_fil;
struct hlist_node *n;
struct hlist_head *head;
int i;
u8 cmd;
for (i = 0; i < adapter->fhash.fbucket_size; i++) {
head = &(adapter->fhash.fhead[i]);
hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
cmd = tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
QLCNIC_MAC_DEL;
qlcnic_sre_macaddr_change(adapter,
tmp_fil->faddr,
tmp_fil->vlan_id,
cmd);
spin_lock_bh(&adapter->mac_learn_lock);
adapter->fhash.fnum--;
hlist_del(&tmp_fil->fnode);
spin_unlock_bh(&adapter->mac_learn_lock);
kfree(tmp_fil);
}
}
}
static int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u8 flag)
{
struct qlcnic_nic_req req;
int rv;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
req.req_hdr = cpu_to_le64(QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
((u64) adapter->portnum << 16) | ((u64) 0x1 << 32));
req.words[0] = cpu_to_le64(flag);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv != 0)
dev_err(&adapter->pdev->dev, "%sting loopback mode failed\n",
flag ? "Set" : "Reset");
return rv;
}
int qlcnic_82xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
{
if (qlcnic_set_fw_loopback(adapter, mode))
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;
}
int qlcnic_82xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
{
struct net_device *netdev = adapter->netdev;
mode = VPORT_MISS_MODE_DROP;
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);
msleep(1000);
return 0;
}
int qlcnic_82xx_read_phys_port_id(struct qlcnic_adapter *adapter)
{
u8 mac[ETH_ALEN];
int ret;
ret = qlcnic_get_mac_address(adapter, mac,
adapter->ahw->physical_port);
if (ret)
return ret;
memcpy(adapter->ahw->phys_port_id, mac, ETH_ALEN);
adapter->flags |= QLCNIC_HAS_PHYS_PORT_ID;
return 0;
}
int qlcnic_82xx_set_rx_coalesce(struct qlcnic_adapter *adapter)
{
struct qlcnic_nic_req req;
int rv;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
req.req_hdr = cpu_to_le64(QLCNIC_CONFIG_INTR_COALESCE |
((u64) adapter->portnum << 16));
req.words[0] = cpu_to_le64(((u64) adapter->ahw->coal.flag) << 32);
req.words[2] = cpu_to_le64(adapter->ahw->coal.rx_packets |
((u64) adapter->ahw->coal.rx_time_us) << 16);
req.words[5] = cpu_to_le64(adapter->ahw->coal.timer_out |
((u64) adapter->ahw->coal.type) << 32 |
((u64) adapter->ahw->coal.sts_ring_mask) << 40);
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;
}
/* Send the interrupt coalescing parameter set by ethtool to the card. */
int qlcnic_82xx_config_intr_coalesce(struct qlcnic_adapter *adapter,
struct ethtool_coalesce *ethcoal)
{
struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
int rv;
coal->flag = QLCNIC_INTR_DEFAULT;
coal->rx_time_us = ethcoal->rx_coalesce_usecs;
coal->rx_packets = ethcoal->rx_max_coalesced_frames;
rv = qlcnic_82xx_set_rx_coalesce(adapter);
if (rv)
netdev_err(adapter->netdev,
"Failed to set Rx coalescing parameters\n");
return rv;
}
#define QLCNIC_ENABLE_IPV4_LRO BIT_0
#define QLCNIC_ENABLE_IPV6_LRO (BIT_1 | BIT_9)
int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
{
struct qlcnic_nic_req req;
u64 word;
int rv;
if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
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);
word = 0;
if (enable) {
word = QLCNIC_ENABLE_IPV4_LRO;
if (adapter->ahw->extra_capability[0] &
QLCNIC_FW_CAP2_HW_LRO_IPV6)
word |= QLCNIC_ENABLE_IPV6_LRO;
}
req.words[0] = 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 send configure hw lro request\n");
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 QLCNIC_RSS_HASHTYPE_IP_TCP 0x3
#define QLCNIC_ENABLE_TYPE_C_RSS BIT_10
#define QLCNIC_RSS_FEATURE_FLAG (1ULL << 63)
#define QLCNIC_RSS_IND_TABLE_MASK 0x7ULL
int qlcnic_82xx_config_rss(struct qlcnic_adapter *adapter, int enable)
{
struct qlcnic_nic_req req;
u64 word;
int i, rv;
static 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
* 10: type-c rss
* 11: udp rss
* 47-12: reserved
* 62-48: indirection table mask
* 63: feature flag
*/
word = ((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
((u64)(enable & 0x1) << 8) |
((u64)QLCNIC_RSS_IND_TABLE_MASK << 48) |
(u64)QLCNIC_ENABLE_TYPE_C_RSS |
(u64)QLCNIC_RSS_FEATURE_FLAG;
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;
}
void qlcnic_82xx_config_ipaddr(struct qlcnic_adapter *adapter,
__be32 ip, int cmd)
{
struct qlcnic_nic_req req;
struct qlcnic_ipaddr *ipa;
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);
ipa = (struct qlcnic_ipaddr *)&req.words[1];
ipa->ipv4 = 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 request\n",
(cmd == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
}
int qlcnic_82xx_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;
}
static int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter)
{
struct qlcnic_nic_req req;
u64 word;
int rv;
if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
return 0;
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;
rc = qlcnic_fw_cmd_set_mtu(adapter, mtu);
if (!rc)
netdev->mtu = mtu;
return rc;
}
static netdev_features_t qlcnic_process_flags(struct qlcnic_adapter *adapter,
netdev_features_t features)
{
u32 offload_flags = adapter->offload_flags;
if (offload_flags & BIT_0) {
features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM;
adapter->rx_csum = 1;
if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
if (!(offload_flags & BIT_1))
features &= ~NETIF_F_TSO;
else
features |= NETIF_F_TSO;
if (!(offload_flags & BIT_2))
features &= ~NETIF_F_TSO6;
else
features |= NETIF_F_TSO6;
}
} else {
features &= ~(NETIF_F_RXCSUM |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM);
if (QLCNIC_IS_TSO_CAPABLE(adapter))
features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
adapter->rx_csum = 0;
}
return features;
}
netdev_features_t qlcnic_fix_features(struct net_device *netdev,
netdev_features_t features)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
netdev_features_t changed;
if (qlcnic_82xx_check(adapter) &&
(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
if (adapter->flags & QLCNIC_APP_CHANGED_FLAGS) {
features = qlcnic_process_flags(adapter, features);
} else {
changed = features ^ netdev->features;
features ^= changed & (NETIF_F_RXCSUM |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_TSO |
NETIF_F_TSO6);
}
}
if (!(features & NETIF_F_RXCSUM))
features &= ~NETIF_F_LRO;
return features;
}
int qlcnic_set_features(struct net_device *netdev, netdev_features_t features)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
netdev_features_t changed = netdev->features ^ features;
int hw_lro = (features & NETIF_F_LRO) ? QLCNIC_LRO_ENABLED : 0;
if (!(changed & NETIF_F_LRO))
return 0;
netdev->features ^= NETIF_F_LRO;
if (qlcnic_config_hw_lro(adapter, hw_lro))
return -EIO;
if (!hw_lro && qlcnic_82xx_check(adapter)) {
if (qlcnic_send_lro_cleanup(adapter))
return -EIO;
}
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_hardware_context *ahw,
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 = ahw->pci_base0 + m->start_2M +
(off - m->start_128M);
return 0;
}
/*
* Not in direct map, use crb window
*/
*addr = 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_82xx_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->ahw, 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;
}
int qlcnic_82xx_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off,
int *err)
{
unsigned long flags;
int rv;
u32 data = -1;
void __iomem *addr = NULL;
rv = qlcnic_pci_get_crb_addr_2M(adapter->ahw, 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_hardware_context *ahw,
u32 offset)
{
void __iomem *addr = NULL;
WARN_ON(qlcnic_pci_get_crb_addr_2M(ahw, offset, &addr));
return addr;
}
static int qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter,
u32 window, u64 off, u64 *data, int op)
{
void __iomem *addr;
u32 start;
mutex_lock(&adapter->ahw->mem_lock);
writel(window, adapter->ahw->ocm_win_crb);
/* read back to flush */
readl(adapter->ahw->ocm_win_crb);
start = QLCNIC_PCI_OCM0_2M + off;
addr = adapter->ahw->pci_base0 + start;
if (op == 0) /* read */
*data = readq(addr);
else /* write */
writeq(*data, addr);
/* Set window to 0 */
writel(0, adapter->ahw->ocm_win_crb);
readl(adapter->ahw->ocm_win_crb);
mutex_unlock(&adapter->ahw->mem_lock);
return 0;
}
static 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);
}
static 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);
}
/* Set MS memory control data for different adapters */
static void qlcnic_set_ms_controls(struct qlcnic_adapter *adapter, u64 off,
struct qlcnic_ms_reg_ctrl *ms)
{
ms->control = QLCNIC_MS_CTRL;
ms->low = QLCNIC_MS_ADDR_LO;
ms->hi = QLCNIC_MS_ADDR_HI;
if (off & 0xf) {
ms->wd[0] = QLCNIC_MS_WRTDATA_LO;
ms->rd[0] = QLCNIC_MS_RDDATA_LO;
ms->wd[1] = QLCNIC_MS_WRTDATA_HI;
ms->rd[1] = QLCNIC_MS_RDDATA_HI;
ms->wd[2] = QLCNIC_MS_WRTDATA_ULO;
ms->wd[3] = QLCNIC_MS_WRTDATA_UHI;
ms->rd[2] = QLCNIC_MS_RDDATA_ULO;
ms->rd[3] = QLCNIC_MS_RDDATA_UHI;
} else {
ms->wd[0] = QLCNIC_MS_WRTDATA_ULO;
ms->rd[0] = QLCNIC_MS_RDDATA_ULO;
ms->wd[1] = QLCNIC_MS_WRTDATA_UHI;
ms->rd[1] = QLCNIC_MS_RDDATA_UHI;
ms->wd[2] = QLCNIC_MS_WRTDATA_LO;
ms->wd[3] = QLCNIC_MS_WRTDATA_HI;
ms->rd[2] = QLCNIC_MS_RDDATA_LO;
ms->rd[3] = QLCNIC_MS_RDDATA_HI;
}
ms->ocm_window = OCM_WIN_P3P(off);
ms->off = GET_MEM_OFFS_2M(off);
}
int qlcnic_pci_mem_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
{
int j, ret = 0;
u32 temp, off8;
struct qlcnic_ms_reg_ctrl ms;
/* Only 64-bit aligned access */
if (off & 7)
return -EIO;
memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
QLCNIC_ADDR_QDR_NET_MAX) ||
ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
QLCNIC_ADDR_DDR_NET_MAX)))
return -EIO;
qlcnic_set_ms_controls(adapter, off, &ms);
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
ms.off, &data, 1);
off8 = off & ~0xf;
mutex_lock(&adapter->ahw->mem_lock);
qlcnic_ind_wr(adapter, ms.low, off8);
qlcnic_ind_wr(adapter, ms.hi, 0);
qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qlcnic_ind_rd(adapter, ms.control);
if ((temp & TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
ret = -EIO;
goto done;
}
/* This is the modify part of read-modify-write */
qlcnic_ind_wr(adapter, ms.wd[0], qlcnic_ind_rd(adapter, ms.rd[0]));
qlcnic_ind_wr(adapter, ms.wd[1], qlcnic_ind_rd(adapter, ms.rd[1]));
/* This is the write part of read-modify-write */
qlcnic_ind_wr(adapter, ms.wd[2], data & 0xffffffff);
qlcnic_ind_wr(adapter, ms.wd[3], (data >> 32) & 0xffffffff);
qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_ENABLE);
qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_START);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qlcnic_ind_rd(adapter, ms.control);
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;
struct qlcnic_ms_reg_ctrl ms;
/* Only 64-bit aligned access */
if (off & 7)
return -EIO;
if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
QLCNIC_ADDR_QDR_NET_MAX) ||
ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
QLCNIC_ADDR_DDR_NET_MAX)))
return -EIO;
memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
qlcnic_set_ms_controls(adapter, off, &ms);
if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
ms.off, data, 0);
mutex_lock(&adapter->ahw->mem_lock);
off8 = off & ~0xf;
qlcnic_ind_wr(adapter, ms.low, off8);
qlcnic_ind_wr(adapter, ms.hi, 0);
qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qlcnic_ind_rd(adapter, ms.control);
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 {
temp = qlcnic_ind_rd(adapter, ms.rd[3]);
val = (u64)temp << 32;
val |= qlcnic_ind_rd(adapter, ms.rd[2]);
*data = val;
ret = 0;
}
mutex_unlock(&adapter->ahw->mem_lock);
return ret;
}
int qlcnic_82xx_get_board_info(struct qlcnic_adapter *adapter)
{
int offset, board_type, magic, err = 0;
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_P3P_4_GB_MM) {
u32 gpio = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_PAD_GPIO_I, &err);
if (err == -EIO)
return err;
if ((gpio & 0x8000) == 0)
board_type = QLCNIC_BRDTYPE_P3P_10G_TP;
}
switch (board_type) {
case QLCNIC_BRDTYPE_P3P_HMEZ:
case QLCNIC_BRDTYPE_P3P_XG_LOM:
case QLCNIC_BRDTYPE_P3P_10G_CX4:
case QLCNIC_BRDTYPE_P3P_10G_CX4_LP:
case QLCNIC_BRDTYPE_P3P_IMEZ:
case QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS:
case QLCNIC_BRDTYPE_P3P_10G_SFP_CT:
case QLCNIC_BRDTYPE_P3P_10G_SFP_QT:
case QLCNIC_BRDTYPE_P3P_10G_XFP:
case QLCNIC_BRDTYPE_P3P_10000_BASE_T:
adapter->ahw->port_type = QLCNIC_XGBE;
break;
case QLCNIC_BRDTYPE_P3P_REF_QG:
case QLCNIC_BRDTYPE_P3P_4_GB:
case QLCNIC_BRDTYPE_P3P_4_GB_MM:
adapter->ahw->port_type = QLCNIC_GBE;
break;
case QLCNIC_BRDTYPE_P3P_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;
}
static int
qlcnic_wol_supported(struct qlcnic_adapter *adapter)
{
u32 wol_cfg;
int err = 0;
wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG_NV, &err);
if (wol_cfg & (1UL << adapter->portnum)) {
wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG, &err);
if (err == -EIO)
return err;
if (wol_cfg & (1 << adapter->portnum))
return 1;
}
return 0;
}
int qlcnic_82xx_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) | adapter->portnum);
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;
}
void qlcnic_82xx_get_beacon_state(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
struct qlcnic_cmd_args cmd;
u8 beacon_state;
int err = 0;
if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_BEACON) {
err = qlcnic_alloc_mbx_args(&cmd, adapter,
QLCNIC_CMD_GET_LED_STATUS);
if (!err) {
err = qlcnic_issue_cmd(adapter, &cmd);
if (err) {
netdev_err(adapter->netdev,
"Failed to get current beacon state, err=%d\n",
err);
} else {
beacon_state = cmd.rsp.arg[1];
if (beacon_state == QLCNIC_BEACON_DISABLE)
ahw->beacon_state = QLCNIC_BEACON_OFF;
else if (beacon_state == QLCNIC_BEACON_EANBLE)
ahw->beacon_state = QLCNIC_BEACON_ON;
}
}
qlcnic_free_mbx_args(&cmd);
}
return;
}
void qlcnic_82xx_get_func_no(struct qlcnic_adapter *adapter)
{
void __iomem *msix_base_addr;
u32 func;
u32 msix_base;
pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
msix_base = readl(msix_base_addr);
func = (func - msix_base) / QLCNIC_MSIX_TBL_PGSIZE;
adapter->ahw->pci_func = func;
}
void qlcnic_82xx_read_crb(struct qlcnic_adapter *adapter, char *buf,
loff_t offset, size_t size)
{
int err = 0;
u32 data;
u64 qmdata;
if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
memcpy(buf, &qmdata, size);
} else {
data = QLCRD32(adapter, offset, &err);
memcpy(buf, &data, size);
}
}
void qlcnic_82xx_write_crb(struct qlcnic_adapter *adapter, char *buf,
loff_t offset, size_t size)
{
u32 data;
u64 qmdata;
if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
memcpy(&qmdata, buf, size);
qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
} else {
memcpy(&data, buf, size);
QLCWR32(adapter, offset, data);
}
}
int qlcnic_82xx_api_lock(struct qlcnic_adapter *adapter)
{
return qlcnic_pcie_sem_lock(adapter, 5, 0);
}
void qlcnic_82xx_api_unlock(struct qlcnic_adapter *adapter)
{
qlcnic_pcie_sem_unlock(adapter, 5);
}
int qlcnic_82xx_shutdown(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
netif_device_detach(netdev);
qlcnic_cancel_idc_work(adapter);
if (netif_running(netdev))
qlcnic_down(adapter, netdev);
qlcnic_clr_all_drv_state(adapter, 0);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
if (qlcnic_wol_supported(adapter))
device_wakeup_enable(&pdev->dev);
return 0;
}
int qlcnic_82xx_resume(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
int err;
err = qlcnic_start_firmware(adapter);
if (err) {
dev_err(&adapter->pdev->dev, "failed to start firmware\n");
return err;
}
if (netif_running(netdev)) {
err = qlcnic_up(adapter, netdev);
if (!err)
qlcnic_restore_indev_addr(netdev, NETDEV_UP);
}
netif_device_attach(netdev);
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
return err;
}