From 97ac4ef78e6d44019745de7761da8536a9068cf8 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Tue, 4 Aug 2015 09:37:29 +0300 Subject: [PATCH] bnx2x: Add BD support for storage Commit 230d00eb4bfe ("bnx2x: new Multi-function mode - BD") adds support for the new mode in bnx2x. This expands this support by implementing APIs required by our storage drivers to support that mode. Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- .../net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 12 +++ .../ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 4 +- .../net/ethernet/broadcom/bnx2x/bnx2x_hsi.h | 19 +++++ .../net/ethernet/broadcom/bnx2x/bnx2x_main.c | 85 +++++++++++++++++++ 4 files changed, 118 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index fa7c53201265..e18a0e4d3ed1 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -1386,4 +1386,16 @@ void bnx2x_schedule_sp_rtnl(struct bnx2x*, enum sp_rtnl_flag, * @state: OS_DRIVER_STATE_* value reflecting current driver state */ void bnx2x_set_os_driver_state(struct bnx2x *bp, u32 state); + +/** + * bnx2x_nvram_read - reads data from nvram [might sleep] + * + * @bp: driver handle + * @offset: byte offset in nvram + * @ret_buf: pointer to buffer where data is to be stored + * @buf_size: Length of 'ret_buf' in bytes + */ +int bnx2x_nvram_read(struct bnx2x *bp, u32 offset, u8 *ret_buf, + int buf_size); + #endif /* BNX2X_CMN_H */ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c index 6b2050a198df..6f909077b919 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c @@ -1348,8 +1348,8 @@ static int bnx2x_nvram_read_dword(struct bnx2x *bp, u32 offset, __be32 *ret_val, return rc; } -static int bnx2x_nvram_read(struct bnx2x *bp, u32 offset, u8 *ret_buf, - int buf_size) +int bnx2x_nvram_read(struct bnx2x *bp, u32 offset, u8 *ret_buf, + int buf_size) { int rc; u32 cmd_flags; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h index 08a08fa49caa..cafd5de675cf 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h @@ -2075,6 +2075,25 @@ enum curr_cfg_method_e { CURR_CFG_MET_VENDOR_SPEC = 2,/* e.g. Option ROM, NPAR, O/S Cfg Utils */ }; +#define FC_NPIV_WWPN_SIZE 8 +#define FC_NPIV_WWNN_SIZE 8 +struct bdn_npiv_settings { + u8 npiv_wwpn[FC_NPIV_WWPN_SIZE]; + u8 npiv_wwnn[FC_NPIV_WWNN_SIZE]; +}; + +struct bdn_fc_npiv_cfg { + /* hdr used internally by the MFW */ + u32 hdr; + u32 num_of_npiv; +}; + +#define MAX_NUMBER_NPIV 64 +struct bdn_fc_npiv_tbl { + struct bdn_fc_npiv_cfg fc_npiv_cfg; + struct bdn_npiv_settings settings[MAX_NUMBER_NPIV]; +}; + struct mdump_driver_info { u32 epoc; u32 drv_ver; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 31c63aa22521..ad73a60de333 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -14653,6 +14653,90 @@ static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl) rc = -EINVAL; } + /* For storage-only interfaces, change driver state */ + if (IS_MF_SD_STORAGE_PERSONALITY_ONLY(bp)) { + switch (ctl->drv_state) { + case DRV_NOP: + break; + case DRV_ACTIVE: + bnx2x_set_os_driver_state(bp, + OS_DRIVER_STATE_ACTIVE); + break; + case DRV_INACTIVE: + bnx2x_set_os_driver_state(bp, + OS_DRIVER_STATE_DISABLED); + break; + case DRV_UNLOADED: + bnx2x_set_os_driver_state(bp, + OS_DRIVER_STATE_NOT_LOADED); + break; + default: + BNX2X_ERR("Unknown cnic driver state: %d\n", ctl->drv_state); + } + } + + return rc; +} + +static int bnx2x_get_fc_npiv(struct net_device *dev, + struct cnic_fc_npiv_tbl *cnic_tbl) +{ + struct bnx2x *bp = netdev_priv(dev); + struct bdn_fc_npiv_tbl *tbl = NULL; + u32 offset, entries; + int rc = -EINVAL; + int i; + + if (!SHMEM2_HAS(bp, fc_npiv_nvram_tbl_addr[0])) + goto out; + + DP(BNX2X_MSG_MCP, "About to read the FC-NPIV table\n"); + + tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); + if (!tbl) { + BNX2X_ERR("Failed to allocate fc_npiv table\n"); + goto out; + } + + offset = SHMEM2_RD(bp, fc_npiv_nvram_tbl_addr[BP_PORT(bp)]); + DP(BNX2X_MSG_MCP, "Offset of FC-NPIV in NVRAM: %08x\n", offset); + + /* Read the table contents from nvram */ + if (bnx2x_nvram_read(bp, offset, (u8 *)tbl, sizeof(*tbl))) { + BNX2X_ERR("Failed to read FC-NPIV table\n"); + goto out; + } + + /* Since bnx2x_nvram_read() returns data in be32, we need to convert + * the number of entries back to cpu endianness. + */ + entries = tbl->fc_npiv_cfg.num_of_npiv; + entries = (__force u32)be32_to_cpu((__force __be32)entries); + tbl->fc_npiv_cfg.num_of_npiv = entries; + + if (!tbl->fc_npiv_cfg.num_of_npiv) { + DP(BNX2X_MSG_MCP, + "No FC-NPIV table [valid, simply not present]\n"); + goto out; + } else if (tbl->fc_npiv_cfg.num_of_npiv > MAX_NUMBER_NPIV) { + BNX2X_ERR("FC-NPIV table with bad length 0x%08x\n", + tbl->fc_npiv_cfg.num_of_npiv); + goto out; + } else { + DP(BNX2X_MSG_MCP, "Read 0x%08x entries from NVRAM\n", + tbl->fc_npiv_cfg.num_of_npiv); + } + + /* Copy the data into cnic-provided struct */ + cnic_tbl->count = tbl->fc_npiv_cfg.num_of_npiv; + for (i = 0; i < cnic_tbl->count; i++) { + memcpy(cnic_tbl->wwpn[i], tbl->settings[i].npiv_wwpn, 8); + memcpy(cnic_tbl->wwnn[i], tbl->settings[i].npiv_wwnn, 8); + } + + rc = 0; +out: + kfree(tbl); return rc; } @@ -14798,6 +14882,7 @@ static struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev) cp->starting_cid = bnx2x_cid_ilt_lines(bp) * ILT_PAGE_CIDS; cp->drv_submit_kwqes_16 = bnx2x_cnic_sp_queue; cp->drv_ctl = bnx2x_drv_ctl; + cp->drv_get_fc_npiv_tbl = bnx2x_get_fc_npiv; cp->drv_register_cnic = bnx2x_register_cnic; cp->drv_unregister_cnic = bnx2x_unregister_cnic; cp->fcoe_init_cid = BNX2X_FCOE_ETH_CID(bp); -- 2.20.1