[PATCH net-next 05/14] bnxt_en: Add the new firmware API to query hardware resources.
From: Michael Chan <michael.chan@broadcom.com>
Date: 2018-01-17 08:21:37
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The new API HWRM_FUNC_RESOURCE_QCAPS provides min and max hardware resources. Use the new API when it is supported by firmware. Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 56 ++++++++++++++++++++++++++++++- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + 2 files changed, 56 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index dce4af9..f87e0bd 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c@@ -4791,7 +4791,46 @@ static int bnxt_hwrm_func_qcfg(struct bnxt *bp) return rc; } -static int bnxt_hwrm_func_qcaps(struct bnxt *bp) +static int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp) +{ + struct hwrm_func_resource_qcaps_output *resp = bp->hwrm_cmd_resp_addr; + struct hwrm_func_resource_qcaps_input req = {0}; + struct bnxt_hw_resc *hw_resc = &bp->hw_resc; + int rc; + + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_RESOURCE_QCAPS, -1, -1); + req.fid = cpu_to_le16(0xffff); + + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (rc) { + rc = -EIO; + goto hwrm_func_resc_qcaps_exit; + } + + hw_resc->min_rsscos_ctxs = le16_to_cpu(resp->min_rsscos_ctx); + hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); + hw_resc->min_cp_rings = le16_to_cpu(resp->min_cmpl_rings); + hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); + hw_resc->min_tx_rings = le16_to_cpu(resp->min_tx_rings); + hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings); + hw_resc->min_rx_rings = le16_to_cpu(resp->min_rx_rings); + hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings); + hw_resc->min_hw_ring_grps = le16_to_cpu(resp->min_hw_ring_grps); + hw_resc->max_hw_ring_grps = le16_to_cpu(resp->max_hw_ring_grps); + hw_resc->min_l2_ctxs = le16_to_cpu(resp->min_l2_ctxs); + hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); + hw_resc->min_vnics = le16_to_cpu(resp->min_vnics); + hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); + hw_resc->min_stat_ctxs = le16_to_cpu(resp->min_stat_ctx); + hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); + +hwrm_func_resc_qcaps_exit: + mutex_unlock(&bp->hwrm_cmd_lock); + return rc; +} + +static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) { int rc = 0; struct hwrm_func_qcaps_input req = {0};
@@ -4859,6 +4898,21 @@ static int bnxt_hwrm_func_qcaps(struct bnxt *bp) return rc; } +static int bnxt_hwrm_func_qcaps(struct bnxt *bp) +{ + int rc; + + rc = __bnxt_hwrm_func_qcaps(bp); + if (rc) + return rc; + if (bp->hwrm_spec_code >= 0x10803) { + rc = bnxt_hwrm_func_resc_qcaps(bp); + if (!rc) + bp->flags |= BNXT_FLAG_NEW_RM; + } + return 0; +} + static int bnxt_hwrm_func_reset(struct bnxt *bp) { struct hwrm_func_reset_input req = {0};
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index b844615..9d12985 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h@@ -1144,6 +1144,7 @@ struct bnxt { #define BNXT_FLAG_FW_DCBX_AGENT 0x800000 #define BNXT_FLAG_CHIP_NITRO_A0 0x1000000 #define BNXT_FLAG_DIM 0x2000000 + #define BNXT_FLAG_NEW_RM 0x8000000 #define BNXT_FLAG_ALL_CONFIG_FEATS (BNXT_FLAG_TPA | \ BNXT_FLAG_RFS | \
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1.8.3.1