From 463a68a7734db3975c0d1c748f5fde713eb9a5b9 Mon Sep 17 00:00:00 2001 From: Ariel Elior Date: Tue, 1 Jan 2013 05:22:39 +0000 Subject: [PATCH] bnx2x: Support of PF driver of a VF q_teardown request The 'q_teardown' request is basically the opposite of the 'q_setup'. Here the PF driver removes from the device the queue it opened against the VF fastpath ring at 'setup_q' stage, along with all related rx_mode info. Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- .../net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 269 ++++++++++++++++++ .../net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | 5 + .../net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 21 ++ 3 files changed, 295 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c index e63925cbe501..9fd43c079045 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c @@ -111,6 +111,13 @@ enum bnx2x_vfop_qctor_state { BNX2X_VFOP_QCTOR_INT_EN }; +enum bnx2x_vfop_qdtor_state { + BNX2X_VFOP_QDTOR_HALT, + BNX2X_VFOP_QDTOR_TERMINATE, + BNX2X_VFOP_QDTOR_CFCDEL, + BNX2X_VFOP_QDTOR_DONE +}; + enum bnx2x_vfop_vlan_mac_state { BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE, BNX2X_VFOP_VLAN_MAC_CLEAR, @@ -137,6 +144,14 @@ enum bnx2x_vfop_rxmode_state { BNX2X_VFOP_RXMODE_DONE }; +enum bnx2x_vfop_qteardown_state { + BNX2X_VFOP_QTEARDOWN_RXMODE, + BNX2X_VFOP_QTEARDOWN_CLR_VLAN, + BNX2X_VFOP_QTEARDOWN_CLR_MAC, + BNX2X_VFOP_QTEARDOWN_QDTOR, + BNX2X_VFOP_QTEARDOWN_DONE +}; + #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0) void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf, @@ -342,6 +357,101 @@ static int bnx2x_vfop_qctor_cmd(struct bnx2x *bp, return -ENOMEM; } +/* VFOP queue destruction */ +static void bnx2x_vfop_qdtor(struct bnx2x *bp, struct bnx2x_virtf *vf) +{ + struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); + struct bnx2x_vfop_args_qdtor *qdtor = &vfop->args.qdtor; + struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate; + enum bnx2x_vfop_qdtor_state state = vfop->state; + + bnx2x_vfop_reset_wq(vf); + + if (vfop->rc < 0) + goto op_err; + + DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); + + switch (state) { + case BNX2X_VFOP_QDTOR_HALT: + + /* has this queue already been stopped? */ + if (bnx2x_get_q_logical_state(bp, q_params->q_obj) == + BNX2X_Q_LOGICAL_STATE_STOPPED) { + DP(BNX2X_MSG_IOV, + "Entered qdtor but queue was already stopped. Aborting gracefully\n"); + goto op_done; + } + + /* next state */ + vfop->state = BNX2X_VFOP_QDTOR_TERMINATE; + + q_params->cmd = BNX2X_Q_CMD_HALT; + vfop->rc = bnx2x_queue_state_change(bp, q_params); + + bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); + + case BNX2X_VFOP_QDTOR_TERMINATE: + /* next state */ + vfop->state = BNX2X_VFOP_QDTOR_CFCDEL; + + q_params->cmd = BNX2X_Q_CMD_TERMINATE; + vfop->rc = bnx2x_queue_state_change(bp, q_params); + + bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); + + case BNX2X_VFOP_QDTOR_CFCDEL: + /* next state */ + vfop->state = BNX2X_VFOP_QDTOR_DONE; + + q_params->cmd = BNX2X_Q_CMD_CFC_DEL; + vfop->rc = bnx2x_queue_state_change(bp, q_params); + + bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); +op_err: + BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n", + vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc); +op_done: + case BNX2X_VFOP_QDTOR_DONE: + /* invalidate the context */ + qdtor->cxt->ustorm_ag_context.cdu_usage = 0; + qdtor->cxt->xstorm_ag_context.cdu_reserved = 0; + bnx2x_vfop_end(bp, vf, vfop); + return; + default: + bnx2x_vfop_default(state); + } +op_pending: + return; +} + +static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp, + struct bnx2x_virtf *vf, + struct bnx2x_vfop_cmd *cmd, + int qid) +{ + struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); + + if (vfop) { + struct bnx2x_queue_state_params *qstate = + &vf->op_params.qctor.qstate; + + memset(qstate, 0, sizeof(*qstate)); + qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj); + + vfop->args.qdtor.qid = qid; + vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt); + + bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT, + bnx2x_vfop_qdtor, cmd->done); + return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor, + cmd->block); + } + DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n", + vf->abs_vfid, vfop->rc); + return -ENOMEM; +} + static void bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid) { @@ -593,6 +703,44 @@ bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod, set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags); } +static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp, + struct bnx2x_virtf *vf, + struct bnx2x_vfop_cmd *cmd, + int qid, bool drv_only) +{ + struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); + + if (vfop) { + struct bnx2x_vfop_args_filters filters = { + .multi_filter = NULL, /* single */ + .credit = NULL, /* consume credit */ + }; + struct bnx2x_vfop_vlan_mac_flags flags = { + .drv_only = drv_only, + .dont_consume = (filters.credit != NULL), + .single_cmd = true, + .add = false /* don't care */, + }; + struct bnx2x_vlan_mac_ramrod_params *ramrod = + &vf->op_params.vlan_mac; + + /* set ramrod params */ + bnx2x_vfop_mac_prep_ramrod(ramrod, &flags); + + /* set object */ + ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj); + + /* set extra args */ + vfop->args.filters = filters; + + bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR, + bnx2x_vfop_vlan_mac, cmd->done); + return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, + cmd->block); + } + return -ENOMEM; +} + int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp, struct bnx2x_virtf *vf, struct bnx2x_vfop_cmd *cmd, @@ -675,6 +823,44 @@ int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp, return -ENOMEM; } +static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp, + struct bnx2x_virtf *vf, + struct bnx2x_vfop_cmd *cmd, + int qid, bool drv_only) +{ + struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); + + if (vfop) { + struct bnx2x_vfop_args_filters filters = { + .multi_filter = NULL, /* single command */ + .credit = &bnx2x_vfq(vf, qid, vlan_count), + }; + struct bnx2x_vfop_vlan_mac_flags flags = { + .drv_only = drv_only, + .dont_consume = (filters.credit != NULL), + .single_cmd = true, + .add = false, /* don't care */ + }; + struct bnx2x_vlan_mac_ramrod_params *ramrod = + &vf->op_params.vlan_mac; + + /* set ramrod params */ + bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags); + + /* set object */ + ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); + + /* set extra args */ + vfop->args.filters = filters; + + bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR, + bnx2x_vfop_vlan_mac, cmd->done); + return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, + cmd->block); + } + return -ENOMEM; +} + int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp, struct bnx2x_virtf *vf, struct bnx2x_vfop_cmd *cmd, @@ -956,6 +1142,89 @@ int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp, return -ENOMEM; } +/* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs, + * queue destructor) + */ +static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf) +{ + struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); + int qid = vfop->args.qx.qid; + enum bnx2x_vfop_qteardown_state state = vfop->state; + struct bnx2x_vfop_cmd cmd; + + if (vfop->rc < 0) + goto op_err; + + DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); + + cmd.done = bnx2x_vfop_qdown; + cmd.block = false; + + switch (state) { + case BNX2X_VFOP_QTEARDOWN_RXMODE: + /* Drop all */ + vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN; + vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0); + if (vfop->rc) + goto op_err; + return; + + case BNX2X_VFOP_QTEARDOWN_CLR_VLAN: + /* vlan-clear-all: don't consume credit */ + vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC; + vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false); + if (vfop->rc) + goto op_err; + return; + + case BNX2X_VFOP_QTEARDOWN_CLR_MAC: + /* mac-clear-all: consume credit */ + vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR; + vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false); + if (vfop->rc) + goto op_err; + return; + + case BNX2X_VFOP_QTEARDOWN_QDTOR: + /* run the queue destruction flow */ + DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n"); + vfop->state = BNX2X_VFOP_QTEARDOWN_DONE; + DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n"); + vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid); + DP(BNX2X_MSG_IOV, "returned from cmd\n"); + if (vfop->rc) + goto op_err; + return; +op_err: + BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n", + vf->abs_vfid, qid, vfop->rc); + + case BNX2X_VFOP_QTEARDOWN_DONE: + bnx2x_vfop_end(bp, vf, vfop); + return; + default: + bnx2x_vfop_default(state); + } +} + +int bnx2x_vfop_qdown_cmd(struct bnx2x *bp, + struct bnx2x_virtf *vf, + struct bnx2x_vfop_cmd *cmd, + int qid) +{ + struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); + + if (vfop) { + vfop->args.qx.qid = qid; + bnx2x_vfop_opset(BNX2X_VFOP_QTEARDOWN_RXMODE, + bnx2x_vfop_qdown, cmd->done); + return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown, + cmd->block); + } + + return -ENOMEM; +} + /* VF enable primitives * when pretend is required the caller is responsible * for calling pretend prior to calling these routines diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h index f75bd65e46ae..9f0099c543e0 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h @@ -641,6 +641,11 @@ int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp, struct bnx2x_vfop_cmd *cmd, int qid); +int bnx2x_vfop_qdown_cmd(struct bnx2x *bp, + struct bnx2x_virtf *vf, + struct bnx2x_vfop_cmd *cmd, + int qid); + int bnx2x_vfop_mcast_cmd(struct bnx2x *bp, struct bnx2x_virtf *vf, struct bnx2x_vfop_cmd *cmd, diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c index ad92bf4227b0..af30eb4a37bf 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c @@ -787,6 +787,23 @@ response: bnx2x_vf_mbx_resp(bp, vf); } +static void bnx2x_vf_mbx_teardown_q(struct bnx2x *bp, struct bnx2x_virtf *vf, + struct bnx2x_vf_mbx *mbx) +{ + int qid = mbx->msg->req.q_op.vf_qid; + struct bnx2x_vfop_cmd cmd = { + .done = bnx2x_vf_mbx_resp, + .block = false, + }; + + DP(BNX2X_MSG_IOV, "VF[%d] Q_TEARDOWN: vf_qid=%d\n", + vf->abs_vfid, qid); + + vf->op_rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qid); + if (vf->op_rc) + bnx2x_vf_mbx_resp(bp, vf); +} + /* dispatch request */ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf, struct bnx2x_vf_mbx *mbx) @@ -814,7 +831,11 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf, case CHANNEL_TLV_SET_Q_FILTERS: bnx2x_vf_mbx_set_q_filters(bp, vf, mbx); break; + case CHANNEL_TLV_TEARDOWN_Q: + bnx2x_vf_mbx_teardown_q(bp, vf, mbx); + break; } + } else { /* unknown TLV - this may belong to a VF driver from the future * - a version written after this PF driver was written, which -- 2.20.1